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Home My WebLink AboutPlanning 2013-05-23 Chapter 5 - 2030 Recommended ImprovementsCity of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 CHAPTER 5. 2030 RECOMMENDED IMPROVEMENTS Chapter 2 identified existing deficiencies in the bicycle, pedestrian, and roadway network. Chapter 4 identified additional deficiencies projected under 2030 conditions. This section describes recommended roadway improvements that have been developed to address or lessen the degree of existing or future deficiencies on the bicycle, pedestrian, and roadway networks. When developing the recommended improvement projects for this chapter, City of Tukwila staff and its consultant focused on meeting the four main objectives outlined in the City's Comprehensive Plan: • Improve and sustain residential neighborhood quality and livability • Redevelop and reinvigorate the Tukwila International Boulevard Corridor • Redevelop and Reinvigorate the industrial areas along East Marginal Way • Support a thriving Urban Center as a true regional concentration of employment, housing, shopping and recreational opportunities As a reflection of these goals, the improvement projects identified in this chapter include a mix of neighborhood -scale projects, major arterial upgrades, improved bicycle and pedestrian connections, and substantial investments in the Southcenter Urban Center. It should be noted that the improvements presented in this chapter are not intended to be a comprehensive list of all transportation projects that may be needed over the next 20 years. Rather, this report focuses on arterials and collector streets. The City of Tukwila has other programs that focus on smaller -scale neighborhood improvements and frontage improvements associated with commercial and industrial redevelopment. To ensure consistency with existing plans, the projects in the 2012 -2017 Transportation Improvement Program (TIP) were also reviewed. As described in this chapter, some of the TIP projects were consistent with, or complementary to, the recommendations identified as part of this technical process to update the Transportation Element and were included in the recommended project list shown below. However, some projects in the TIP are not recommended since they do not address deficiencies found as part of this analysis. The TIP projects recommended for removal are identified at the end of this chapter. Recommended projects are organized according to the Tukwila Transportation Impact Fee Zone (TIF) in which they are located, and are organized as such in the following sections. The projects are organized from south to north, and east to west within the each TIF Zone, and are assigned a priority of A, B, or C. Priority A projects are the highest priority, and priority C are those not recommended at this time before 2030. The number system combines these three elements in the format of 1.1.C. The first digit is the TIF Zone, the second is the geographic project number, and the final letter designates the priority. Project prioritization was assigned based on segments or intersections with poor LOS where feasible improvements were identified. Additionally the projects strive to be reasonably balanced between modes and prioritize projects in the existing TIP and grant feasible projects. Cost Estimates To complement the list of recommended improvements, cost estimates are also provided. As with all planning -level cost estimates, these are preliminary and are expected to change based on specific alignments and details that can only be determined during final design. Tables at the beginning of each section provide a summary of the improvement measures' estimated costs. Figures show the project locations within each TIF zone. Following the cost estimate table, each recommended project is described in detail to assist in future planning and the development of upcoming Transportation Improvement Program project lists. Additionally, recommended projects from the 2009 Walk and Roll Plan are included. This plan is based on policies outlined in the City's Comprehensive Plan and the concept of "complete streets," which provides FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Com.rehensive Plan U•dat Transportation Analysis and 2030 Improvement Recommendations May 2012 mobility for all users and all modes. Walk and Roll improvements focus on bicycle and pedestrian projects. The recommended projects (A -B projects, including TIP and Walk and Roll projects) identified in the previous chapter have estimated costs of $91,690,000 in TIF Zone1, $13,322,000 in TIF Zone 2, $36,552,000 in TIF Zone 3, and $36,666,000 in TIF Zone 4. The total cost of all recommended projects is estimated at $178,230,000. Appendix E presents the summary cost sheets for projects as estimated by Fehr & Peers. Costs for TIP and Walk and Roll projects were taken from their respective documents. Note that estimates for TIP and Walk and roll projects are planning level estimates and do not have the same level of supporting cost estimation documents as the projects recommendations fully detailed in this report. Projected Revenue Forecasts Estimated transportation revenue forecasts for 2011 -2030 for Tukwila were developed. Full revenue forecast details are included as Appendix D in this document. Revenue forecasts are broken into two main components: 1) existing revenue and 2) potential additional revenue sources. Existing revenue sources for transportation capital improvements (including grants, sales tax, real estate excise tax, and other sources), estimates of revenue over the 2011 -2030 time period range from a low of $71,042,000 to a high of $104,493,000. In terms of potential additional revenue sources, three sources were identified. These sources are 1) implementing a transportation benefit district, 2) voted general obligation bonds, and 3) councilmanic bonds. Estimates of revenue over the 2011 -2030 time period for these additional sources range from a low of $85,927,000 to a high of $187,187,000. The combined total estimated revenue for capital from existing and potential sources ranges from $156,969,000 to $291,680,000. The average of this range is $224,325,000. Based on total estimated project costs, the City will not have adequate capital revenue under existing sources to support all recommended projects. However, utilizing other potential sources of revenue could potentially generate sufficient capital to finance the recommendations. Given that there is uncertainty regarding future revenue and whether the City Council will adopt any of the potential additional revenue sources, the recommended project list was further refined to match the existing revenue forecasts. This list of projects and costs is provided in Table 20 below. Additional projects which were considered but not recommended are provided in Appendix F. Options for Concurrency The 1990 Growth Management Act (GMA) requires each local jurisdiction to identify facility and service needs based on level of service standards for transportation facilities and services. Level of service standards are used to judge the performance of the transportation system. The GMA further requires that a transportation element include specific actions and requirements for bringing into compliance any facilities or services that are below an established level of service standard. It also requires that system expansion needs must be identified for at least ten years, based on the traffic forecasts for the adopted land use plan and level of service standards. For the needs, a financing plan must be developed. If probable funding falls short of meeting identified needs, the jurisdiction is given two options: 1) to raise additional funding, and /or 2) to reassess the land use assumptions. Under the GMA it is also possible to lower the LOS standards. The relationship between LOS standards, funding needs to accommodate increased travel, and land use assumptions is referred to as "concurrency ". FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 The concept of concurrency can be illustrated with a three - legged stool. Each leg is characterized as follows: Leg 1- Growth Leg 2- Traffic congestion (measured with the level of service standards) Leg 3- Resources needed to fund new capital facilities The stool must be balanced. If it is standing upright, then growth is occurring concurrent with needed facilities. If the three - legged stool is slanted or tipped, then actions must be taken to keep growth balanced correctly with available funding and standards. To stabilize the stool, the City 1. Reduce growth by denying or delaying land use permit applications 2. Increase funding for new facilities 3. Change the level of service standard LOS Methodology Options for Roads The GMA allows each local jurisdiction to choose a LOS method and standards. The text box on the right shows the different LOS methodology options. Generally, one can define a method by selecting an option from each section of the table. For example, the LOS could be measured in terms of delay for averaged PM peak two hours and applied to signalized intersections to calculate level of service. Tukwila currently measures LOS in Southcenter by averaging LOS along corridors. Outside of Southcenter, LOS is based on individual intersection performance. must take one of the following three options: LOS Methodology Options LOS Measuring Method - Volume to capacity ratio -Delay - Average travel time /travel speed LOS Measuring Period -PM peak one hour -AM peak one hour -Noon peak one hour - Weekend peak one hour - Averaged PM peak two hours - Averaged PM peak three hours LOS Applied Location - Signalized intersections - Arterial intersections (including unsignalized intersections) - Corridor average -Area average of intersections - Screenlines - Arterial segments FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TABLE 20 — RECOMMENDED TRANSPORTATION IMPROVEMENTS BY PRIORITY (COSTS IN THOUSANDS) Priority A (Pre 2030) Priority B (Pre 2030) Priority C (Post 2030) # Project Description Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Total TIF Zone 1 Projects 1.1.0 South of S 180th Street from Southcenter Parkway to West Valley Highway: New Roadway Construction $33,316 $33,316 1.2.A S 180th Street and Southcenter Parkway: Intersection Improvement $2,057 $2,057 1.3.A S 180th Street and Andover Park W: Intersection Improvement $179 $179 1.4.A S 180th Street from Sperry Drive S to Green River Bridge: Sidewalk Improvement $125 $125 1.5.A Andover Park E or Andover Park W from Minkler Boulevard to S 180th Street: Bicycle Facility Improvement $69 $69 1.6.A Minkler Boulevard and Andover Park W: Intersection Improvement $1,551 $1,551 1.7.B Minkler Boulevard from Andover Park W to W Valley Highway: Roadway Extension $38,440 $38,440 1.8.A Andover Park E from Minkler Boulevard to Strander Boulevard: Bicycle Facility Improvement $69 $69 1.9.0 W Valley Highway from Strander Boulevard to S 180th Street: Sidewalk Improvement No Cost No Cost 88 FEHRk PEERS —r City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TABLE 20 — RECOMMENDED TRANSPORTATION IMPROVEMENTS BY PRIORITY (COSTS IN THOUSANDS) Priority A (Pre 2030) Priority B (Pre 2030) Priority C (Post 2030) # Project Description Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Total 1.10.A S 168th (Pond) Street from Southcenter Boulevard to Andover Park E: New Street Construction $17,425 $17,425 1.11.A Treck Drive from Andover Park W to Andover Park E: New Street Construction $1,930 $1,930 1.12.A Green River and Interurban Trails from West Valley Highway: Bicycle Facility Improvement and Signage $173 $173 1.13.B Strander Boulevard and W Valley Highway: Intersection Improvement $2,490 $2,490 1.14.A Baker Boulevard and Andover Park W: Tukwila Urban Center, Transit Center $5,475 $5,475 1.15.8 Baker Boulevard from Andover Park W to W Valley Highway: Pedestrian and Bicycle Facility Improvement $4,380 $4,380 $8,760 1.16.0 1 -5 Northbound Off -Ramp and Southcenter Parkway: Intersection Improvement $1,071 $1,071 1.17.A Andover Park W from Strander Boulevard to Tukwila Parkway: Roadway Widening and Center Turn Lane Construction $1,461 $1,461 1.18.A Andover Park E from Strander Boulevard to Tukwila Parkway: Bicycle Facility Improvement $470 $470 1.19.B Tukwila Parkway and 61st Avenue S: Intersection Improvement $185 $185 89 FEHRk PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TABLE 20 — RECOMMENDED TRANSPORTATION IMPROVEMENTS BY PRIORITY (COSTS IN THOUSANDS) Priority A (Pre 2030) Priority B (Pre 2030) Priority C (Post 2030) # Project Description Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Total 1.20.0 Tukwila Parkway from 61st Avenue S to 66th Avenue S: Bicycle Facility Improvement $1,531 $1,531 1.21.0 Tukwila Parkway from 66th Avenue S to W Valley Highway: Roadway Extension TBD TBD 1.22.0 Southcenter Boulevard and I- 405 Southbound Off -Ramp: Intersection Improvement TBD TBD 1.23.B Southcenter Boulevard from 53rd Avenue S to 66th Avenue S: Bicycle Facility Improvement $10,132 $10,132 1.24.A Southcenter Boulevard from 61st Avenue S to 65th Avenue S: Sidewalk and Crosswalk Improvement $64 $64 1.25.B Southcenter Boulevard and 65th Avenue S: Crosswalk Improvement $337 $337 1.26.A Southcenter Boulevard and 66th Avenue S: Intersection Improvement $50 $50 1.27.B Southcenter Boulevard and W Valley Highway: Intersection Improvement $248 $248 TIF Areal Subtotal $25,682 $2,242 $189 $5,475 $38,625 $14,512 $4,965 $0 $34,387 $0 $1,531 $0 $127,608 FEHRt PEERS 90 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TABLE 20 — RECOMMENDED TRANSPORTATION IMPROVEMENTS BY PRIORITY (COSTS IN THOUSANDS) Priority A (Pre 2030) Priority B (Pre 2030) Priority C (Post 2030) # Project Description Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Total TIF Zone 2 Projects 2.1.0 Macadam Road S from S 150th Street to Southcenter Boulevard: Pedestrian and Bicycle Facility Improvement $1,936 $1,935 $3871 2.2.A Interurban Avenue S from Fort Dent Way to S 143rd Street: Roadway Reconstruction $6,660 $4,440 $11,100 2.3.B Macadam Road S from S 150th Street to S 144th Street: Sidewalk Improvement $405 $405 2.4.A Macadam Road S and S 144th Street: Intersection Improvement $627 $627 2.5.A 53rd Ave S from S 144th Street to S 130th Place: Roadway Widening and Bicycle Facility Improvement $1,190 $1,190 TIF Zone 2 Subtotal $7,287 $1,190 $4,440 $0 $0 $0 $405 $0 $0 $1,936 $1,935 $0 $17,193 TIF Zone 3 Projects 3.1.g S 160th Street and 53rd Avenue S from 42nd Avenue S to Klickitat Drive: Bicycle Facility Improvement $2,654 $2,654 3.2.B Klickitat Drive from 53rd Avenue S to Southcenter Parkway: Walkway Improvement $843 $843 $1,686 FEHRk PEERS 91 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TABLE 20 — RECOMMENDED TRANSPORTATION IMPROVEMENTS BY PRIORITY (COSTS IN THOUSANDS) Priority A (Pre 2030) Priority B (Pre 2030) Priority C (Post 2030) # Project Description Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Total 3.3.A 42nd Avenue S from S 144th Street to S 160th Street: Bicycle Boulevard Addition $161 $161 3.4.B S 152nd Street from Tukwila International Boulevard to 42nd Avenue S: Sidewalk Improvement $1,605 $1,605 3.5.A S 150th Street from Tukwila International Boulevard to 42nd Avenue S: Sidewalk Improvement $2,603 $2,603 3.6.B S 148th Street from Tukwila International Boulevard to 46th Avenue S: Sidewalk Improvement $3,117 $3,117 3 7 B S 146th Street from Tukwila International Boulevard to 47th Avenue S: Sidewalk Improvement $3,756 $3,756 3.8.B 51st Ave S from S 144th Street to Southcenter Parkway: Bicycle Facility Improvement $1,823 $1,823 3.9.A S 144th Street from 42nd Avenue S to Tukwila International Boulevard: Multimodal Improvements $913 $912 $1,825 3.10.B S 144th Street from 42nd Avenue S to 51st Avenue S: Sidewalk Improvement $2,102 $2,102 3.11.B S 144th Street from 42nd Ave S to Macadam Road S: Bicycle Facility Improvement $26 $26 92 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TABLE 20 — RECOMMENDED TRANSPORTATION IMPROVEMENTS BY PRIORITY (COSTS IN THOUSANDS) Priority A (Pre 2030) Priority B (Pre 2030) Priority C (Post 2030) # Project Description Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Total 3.12.B S 144th Street Bridge over 1 -5: Preliminary Engineering for Sidewalks $100 $100 3.13.A 40th Avenue S and 42nd Avenue S from S 128th Street to S 144th Street: Pedestrian and Bicycle Facility Improvement $678 $1,018 $1,696 3.14.B S 142nd Street from Tukwila International Boulevard to 37th Avenue S: Sidewalk Improvement $1,282 $1,282 3.15.8 S 141st Street from Tukwila International Boulevard to 42nd Avenue S: Sidewalk Improvement $93 $93 3.16.B S 140th Street from Tukwila International Boulevard to 46th Avenue S: Sidewalk Improvement $3,952 $3,952 3.17.8 Macadam Road S from S 133rd Street to S 144th Street: Bicycle Facility Improvement $134 $134 3.18.B S 135th Street and 37th Avenue S from Military Road S to Tukwila International Boulevard: Bicycle Facility Improvement $508 $508 3.19.A E Marginal Way from S 130th Street to Macadam Road S: Bicycle Facility Improvement $35 $35 3.20.A S 133rd Street and SR 599 Ramps: Intersection Improvements $190 $190 93 FEHRk PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TABLE 20 — RECOMMENDED TRANSPORTATION IMPROVEMENTS BY PRIORITY (COSTS IN THOUSANDS) Priority A (Pre 2030) Priority B (Pre 2030) Priority C (Post 2030) # Project Description Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Total 3.21.B S 130th Street from Tukwila International Boulevard to Macadam Road S: Roadway Widening and Bicycle Facility Improvement $4,244 $4,244 3.22.B E Marginal Way /40th Avenue S and S 130th Street: Intersection Improvement $163 $163 3.23.A S 115th Street and 42nd Avenue S from E Marginal Way to S 133rd Street: Bicycle Facility Improvement $45 $45 3.24.B S 125th Street /50th Place S from 46th Avenue S to E City Limits: Bicycle Facility Improvement $677 $677 3.25.B Tukwila International Boulevard from S Boeing Access Road to13400 Block Signal: Pedestrian Improvement $2,040 $2,040 3.26.A E Marginal Way from S Boeing Access Road to Interurban Avenue S: Bicycle Facility Improvement $35 $35 TIF Zone 3 Subtotal $353 $1,832 $1,930 $0 $0 $10,994 $21,493 $0 $0 $0 $0 $0 $36,552 TIF Zone 4 Projects 4.1.B Tukwila International Boulevard from S Boeing Access Road to Green River: Bicycle Facility Improvement $2,040 $2,040 FEHRk PEERS 94 air City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TABLE 20 — RECOMMENDED TRANSPORTATION IMPROVEMENTS BY PRIORITY (COSTS IN THOUSANDS) Priority A (Pre 2030) Priority B (Pre 2030) Priority C (Post 2030) # Project Description Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Total 4 2 B S 112th Street from Tukwila International Boulevard to E Marginal Way S: Bicycle Facility Improvement $786 $786 4.3.0 S Boeing Access Road and E Marginal Way S /Tukwila International Boulevard: Intersection Improvement $259 $259 4.4.B S Boeing Access Road from Martin Luther King Junior Way S to E Marginal Way S: Walkway Improvement $3,062 $3,062 4.5.A S Boeing Access Road from Airport Way S to 1 -5: Bridge Replacement $30,734 $30,734 4.6.B S Ryan Way from Martin Luther King Junior Way S to 51st Avenue S: Bicycle Facility Improvement $44 $44 4.7.0 S 102nd Street and S Norfolk Street from W Marginal Place to Airport Way S: Bicycle Facility and Sidewalk Improvement $5,907 $5,907 4.8.0 E Marginal Way from N City Limits to S Boeing Access Road: Bicycle Facility Improvement $8,861 $8,861 4.9.0 W. Marginal Place S from 14th Avenue S to Existing Trail: Bicycle Trail Extension $1,486 $1,485 $2,971 TIF Zone 4 Subtotal $30,734 $0 $0 $0 $0 $2,870 $3,062 $0 $259 $16,254 $1,485 $0 $54,664 95 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TABLE 20 — RECOMMENDED TRANSPORTATION IMPROVEMENTS BY PRIORITY (COSTS IN THOUSANDS) Priority A (Pre 2030) Priority B (Pre 2030) Priority C (Post 2030) # Project Description Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Auto Projects Bike Projects Pedestrian Projects Transit Projects Total Citywide Total $64,056 $5,264 $6,559 $5,475 $38,625 $28,326 $29,925 $0 $34,646 $18,190 $4,951 $0 $236 Priority A (Pre 2030) Total $81,354 Priority B (Pre 2030) Total $96,876 Priority C (Post 2030) Total $57,787 Grand Total $236,017 96 FEHR 3'PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TIF ZONE 1 2030 RECOMMENDED TRANSPORTATION IMPROVEMENTS This section provides details on the 2030 recommended transportation improvements that are located in Tukwila Transportation Impact Fee Zone 1. The projects shown in Table 21 are based on the evaluation of existing and 2030 transportation operations, the City's 2012 -2017 Transportation Improvement Program, and the Walk and Roll Plan. Table 20 also presents estimated costs and Figure 33 shows the location of these projects. TABLE 21 — RECOMMENDED TRANSPORTATION IMPROVEMENTS IN TIF ZONE 1 Project Location Improvement Priority A -B Cost (Thousands) Priority C Cost (Thousands) 1.1.0 South of S 180th Street from Southcenter Parkway to West Valley Highway New Roadway Construction $33,316 1.2.A S 180th St & Southcenter Pkwy Add a westbound /southbound left turn lanes, restriping, path on 178th St $2,057 1.3.A S 180th St & Andover Park W Restripe, modify signal, add bicycle lanes $179 1.4.A S 180th St from Sperry Dr to GreenAdd River Bridge sidewalks $125 1.5.A Andover Park E or W Add bicycle lanes, restriping $69 1.6.A Minkler Blvd & Andover Park W Realign intersection approaches $1,551 1.7.B Minkler Blvd Extension to West Valley Hwy Widen roadway, construct new bridge over Green River, new signals $38,440 1.8.A Andover Park E from Minkler Blvd to Strander Blvd Add bicycle lanes, restriping $69 1.9.0 West Valley Hwy from Strander Blvd to S 180th St Sidewalk improvements No Cost 1.10.A S 168th S (Pond Street) from Southcenter Blvd to Andover Park E Construct new two -lane street with sidewalks, planter strip, and on- street parking $17,425 1.11.A Treck Dr between Andover Park E and Andover Park W Extend Treck Dr to provide a connection $1,930 1.12.A Green River and Interurban Trail near West Valley Hwy Construct bicycle access from West Valley Hwy, add wayfinding signs $173 1.13.B Strander Blvd & West Valley Hwy Strander Blvd Extension Modifications $2,490 1.14.A Andover Park W & Baker Blvd Construct Transit Center $5,475 1.15.B Baker Boulevard Corridor Pedestrian and bicycle improvements to connect Urban Center to Tukwila Station $8,760 1.16.0 1 -5 Northbound Off-ramp & Southcenter Pkwy Realign intersection to be opposite WSDOT ramp $1,071 1.17.A Andover Park W from Strander Blvd to Tukwila Pkwy Add left turn lanes $1,461 1.18.A Andover Park E Bicycle Lane from Strander Blvd to Tukwila Pkwy Restripe roadway to provide bicycle lanes $470 97 FEHRk PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TABLE 21 — RECOMMENDED TRANSPORTATION IMPROVEMENTS IN TIF ZONE 1 1.19.B Southcenter Blvd & 61st Ave S Add a raised island to accommodate free southbound right turns. Add C -curb, signal modifications $185 1.20.0 Tukwila Pkwy from 61st Ave S to 66th Ave S Add a multi -use path $1,531 1.21.0 Tukwila Pkwy from 68th Ave S to West Valley Hwy Extend Tukwila Pkwy (WSDOT project) $TBD 1.22.0 Southcenter Blvd & 1 -405 SB Off- ramp New signal (WSDOT project) $TBD 1.23.B Southcenter Blvd from 53rd Ave S to 66th Ave S Add bicycle lanes $10,132 1.24.A Southcenter Blvd from 61st Ave S to 62nd Ave S Add a sidewalk $64 1.25.B Southcenter Blvd & 65th Ave S Add a crosswalk and short sidewalk segment $337 1.26.A Southcenter Blvd & 66th Ave S Restripe westbound approach lane configuration to one through lane and two left turn lanes $50 1.27.B Southcenter Blvd & West Valley Hwy Reduce southbound right turn curb radius, add textured crosswalks $248 TOTAL $91,690 $35,918 FEHR j PEERS S 160th St 3!1'B TIFZone 1 Minkler Blvd 1'6'A Intersection Projects 1 • Pedestrian Improvements 1 • Auto Improvements 1 • Transit Improvements Roadway Projects Pedestrian Improvements Bicycle Improvements Auto Improvements Zone Boundary 0 N NOT TO SCALE FEHRk PEERS \ \fpse2 \data2 \2010Projects \S E 10- 0181.00_Tukwila_TransElement\ Graphics \G IS \MXD \April_2012 \fig33_zonel .mxd CITY OF TUKWILA - TIF ZONE 1 2030 PROJECTS FIGURE 33 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Recommended Improvements in TIF Zone 1 Project 1.1.C. South of S 180th Street from Southcenter Parkway to West Valley Highway: New Roadway Construction To reduce the travel demand on S 180th Street from Tukwila Valley South developments, a new roadway connecting Southcenter Parkway with West Valley Highway is needed by 2030. A corridor between S 188th Street (S Glacier Street) and S 190th Street was identified as a potential corridor. It is important for the City to discuss this potential roadway with City of Kent as well as the Tukwila South developer. Based on preliminary data from the Tukwila travel model, this roadway should be five lanes between Southcenter Parkway and Andover Park West and three lanes between Andover Park West and West Valley Highway. In addition, since this roadway provides an opportunity to enhance pedestrian and bicycle connections between Southcenter Parkway and West Valley Highway, any new alignment should include bicycle lanes and sidewalks or a multi -use trail. General location of a new connection between Southcenter Parkway and West Valley Highway. Exact alignment will need to be determined as part of a subsequent study. 100 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 South 180th Street Corridor Improvement Options As documented in earlier chapters, the S 180th Street corridor between Southcenter Parkway and West Valley Highway is characterized by high existing and forecast 2030 traffic volumes and no bicycle lanes (standard sidewalks are provided, however). Improvements in this corridor affect projects along S 180th Street, W Valle Hwy, and Minkler Boulevard. These conditions translated into poor existing and forecast bicycle and auto LOS. To address the poor operations of the corridor, Fehr & Peers evaluated several options, including those listed below: Widening S 180th Street to accommodate bicycle lanes per the Walk and Roll plan ($9,631,000); Widening S 180th Street to accommodate bicycle lanes and an additional through lane in each direction ($36,829,000); Constructing a new street between Southcenter Parkway and West Valley Highway south of S 180th Street (exact alignment not yet determined - $33,316,000); and Extending Minkler Boulevard across the Green River to connect with West Valley Highway ($38,440,000). While there is value in each of the projects listed above, given revenue constraints it was determined that only one project could reasonably be implemented by 2030. The ultimate recommendation to address the poor bicycle and auto LOS along the S 180th Street corridor is the Minkler Boulevard extension across the Green River. While this project is the most expensive option, the costs of all three auto LOS improvement projects are nevertheless similar. Minkler Boulevard's central location is favorable as it provides more accessibility benefits for cyclists, pedestrians, and autos than the other options. The benefits of another crossing of the Green River outweigh the slight cost differences compared to the S 180th Street widening option. 101 FEHRITPEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.2.A. S 180th Street and Southcenter Parkway: Intersection Improvement The signalized intersection of S 180th Street and Southcenter Parkway is expected to operate at LOS F for PM, midday, and Saturday peak periods in 2030. While this intersection performed adequately under existing conditions, the new employment and housing growth anticipated in Tukwila South is projected to dramatically increase the traffic volume through this intersection. The current north -south split phasing of this intersection is not efficient for the anticipated high volume and new growth in north -south through movements. The westbound to southbound left turn movement is also expected to increase dramatically, overwhelming the single left turn lane at this intersection. • 2010 level of service: LOS A (9 seconds of delay) in AM peak hour and LOS D (54 seconds of delay) in PM peak hour. • 2030 level of service: LOS C (38 seconds of delay) in AM peak hour and LOS F (132 seconds of delay) in PM peak hour. Traffic congestion along the entire S 180th Street corridor is expected to become problematic by 2030. Therefore, for this location and the other intersections along S 180th Street, several options were explored to reduce congestion and provide more pedestrian and bicycle connections through the area. The previous page discusses these options. Ultimately, the Minkler Boulevard extension across the Green River by 2030 was recommended. In addition to the potential corridor improvements, the Development Agreement for the Tukwila South development between the City and La Pianta executed on June 8, 2009 includes the following section stating as follows: The Administration of the City shall recommend to the City Council that the realignment of South 178th Street, as depicted in the 90% construction drawings, be added to the City's Capital Improvement Plan. While this project has been added to the CIP, it is currently shown as 100% developer financed. Recommendation Differences in this analysis versus the Tukwila South EIS - Tukwila South EIS utilized 2004 counts, whereas this report used 2010 counts to establish a baseline. Levels of traffic congestion have increased significantly during the PM peak hour from 2004 to 2010. - Tukwila South EIS assumed that the S 178th St realignment project would be done as a part of the Tukwila South Development. The EIS did not show the 2015 and 2030 LOS at these intersections without this realignment project, making comparison to this report difficult. - Tukwila South EIS concluded that the Tukwila concurrency standard in the TUC in 2015 would be met with averaged LOS D under a method not adopted by the City. As a part of the Transportation Element update, Fehr & Peers updated the concurrency report for 2016, finding that S 180th Street corridor would operate at LOS F in 2016, not meeting the City's standard. 1. If no realignment of S 178th Street takes place, then it is recommended that a new westbound left turn lane and southbound left turn lane be added at this location. The north -south split phasing should also be eliminated by restriping the southbound approach. In addition, the intersection would benefit from a westbound right turn overlap phase. 2. If S 178th Street is realigned, then the intersection should be reconfigured as follows: a. Construct the westbound approach with dual left turn lanes and a single right turn lane with overlap phasing. 102 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 b. Construct the northbound approach with two through lanes and a right turn lane. c. Construct the southbound approach with two through lanes and at least one left turn lane. Recommended lane configuration with no realignment to S 178th Street and no new Green River crossings. 3. Regardless of which improvement option is selected at this location, pedestrian access improvements should be included on S 178th Street, as this is one of the only connections between Tukwila and SeaTac. If S 178th Street is realigned, it is recommended that a pedestrian path /hill climb be installed in the vicinity of the existing S 178th Street alignment to provide more direct access to the retail areas along Southcenter Parkway. If S 178th Street is not realigned, then it is recommended that sidewalks be added on at least one side of the street. 103 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Recommended pedestrian improvements if S 178th Street is realigned. FEHRt PEERS 104 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.3.A. S 180th Street and Andover Park W: Intersection Improvement The signalized intersection of S 180th Street and Andover Park West is expected to operate at LOS F during the PM peak period in 2030. With the anticipated growth in Tukwila South, higher traffic volumes are expected along the S 180th corridor. New development is also expected along Andover Park West south of S 180th Street, increasing demand on the northbound approach to the intersection. The bullets below summarize the intersection operations under existing and 2030 conditions. • 2010 level of service: LOS B (18 seconds of delay) in AM peak hour and LOS D (43 seconds of delay) in PM peak hour. • 2030 level of service: LOS C (34 seconds of delay) in AM peak hour and LOS F (95 seconds of delay) in PM peak hour. The south leg of this intersection is privately owned. Therefore any improvements at this intersection will require that the City work with the property owners located on the south side of S 180th Street. Also, as described in Project 1.2.A, the potential new Minkler Boulevard extension across the Green River could affect operations at this intersection. Table 22 identifies how the various transportation network changes influence PM peak hour operations at this intersection. TABLE 22 — S 180TH STREET /ANDOVER PARK WEST PM PEAK HOUR INTERSECTION OPERATIONS 2030 No Action (Delay / LOS) 2030 Reconfigured Intersection 2030 Reconfigured Intersection and Minkler Bridge 95/F 66/E 43/D Fehr & Peers, 2011 There can be substantial improvements to traffic operations from a relatively simple reconfiguration of the intersection. The table also shows that the Minkler Boulevard Bridge provides additional congestion relief to this intersection by diverting some of the S 180th Street traffic to the north. The combination of these elements results in LOS D operations at this location. Recommendation 1. Redesign the intersection to include the following features: a. Restripe the northbound approach to include a single left, through, and right turn lane. b. Restripe the southbound approach to include a single left turn lane and a shared through - right lane. c. Eliminate the north -south split phasing. d. Add protected - permitted left turn phasing on all approaches. 2. Add bicycle lanes on the north leg and work with the property owners to connect these lanes with the bicycle facility in the Tukwila South development (this facility ultimately extends to the Green River trail). Note that this reconfiguration can be made with or without the addition of bicycle lanes. 105 FEHRt PEERS City of Tukwila: Transportation A May 2012 Background Report for the Transportation Element of the Comprehensive Plan Update nalysis and 2030 Improvement Recommendations Recommended configuration for the S 180th Street /Andover Park West intersection. 106 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen ' e Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.4.A. S 180th Street from Sperry Drive S to Green River Bridge: Sidewalk Improvement One sidewalk gap exists along the south side of the S 180th Street corridor between the Sperry Drive S intersection and the Green River Bridge. This roadway segment has a pedestrian LOS E, as shown in Figure 16C. Recommendation Provide a sidewalk on the south side of S 180th Street to fill the gap. R FEHRt PEERS 107 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan lJ .date Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.5.A Andover Park E or Andover Park W from Minkler Boulevard to S 180th Street: Bicycle Facility Improvement LEGEND Lend of 5ery is A -B • 0 J1 - ►Y c C • E N E = NJ TO SCALE The existing conditions LOS for bicycles on the arterials in the Southcenter area are in the range of LOS D to F on many streets. The goal of project(s) in this corridor is to d provide a north -south bike facility to connect to trail systems on the north and south ends. It would be difficult to add bicycle facilities on Southcenter Parkway due to high volumes of vehicles and limited right -of -way. However, there may be opportunities to add bicycle facilities on Andover Park West or Andover Park East. In these corridors, the lack of bicycle lanes or shoulders to separate the cyclists from vehicles and the number of driveway conflicts are the main causes of the poor levels of service. Projects 1.8.A and 1.18.A recommend additional bicycle lanes on Andover Park East between Minkler Boulevard and Tukwila Parkway. Recommendation t -� Nate: Leval of &arvino on roadway sn n on s are PM ONLY, and by dreciion. fb xwsrr`s, :r Add bicycle lanes on Andover Park West or Andover Park East between Minkler Boulevard and S 180th Street by restriping the traffic lanes from four to three lanes. 108 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Minkler Blvd Andover Park W Bicycle Facility on Andover Park West or East 5 180th St FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.6.A. Minkler Boulevard and Andover Park W: Intersection Improvement The signalized intersection of Minkler Boulevard and Andover Park West has a skewed east -west approach that leads to inefficient traffic signal phasing. To improve overall intersection operations, it is recommended that the west leg of the intersection be realigned to match the location of the east leg. Because this realignment would occur on private property, it would require right -of -way acquisition. If the proposed Minkler Boulevard crossing of the Green River is pursued, this realignment becomes even more important since it is recommended that Minkler Boulevard be widened to five lanes between Andover Park West and West Valley Highway. Recommendation Realign the eastbound approach of the intersection to squarely meet the westbound approach. I I 11 Proposed realignment of Minkler Boulevard (assuming the five lane configuration required for the Green River crossing). Note that the potential road diet and bicycle lanes on Andover Park West are also shown in this figure. FEHRt PEERS 110 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.7.B. Minkler Boulevard from Andover Park W to W Valley Highway: Roadway Extension As discussed in project 1.2.A, the Southcenter area would benefit from additional connections to West Valley Highway over the Green River. The extension of Minkler Boulevard is one of the obvious choices since it is one of only a few east -west arterials and is located in the center of the Southcenter area. The recommended action is to extend Minkler Boulevard from Industry Drive to West Valley Highway while widening Minkler Boulevard to five lanes between Andover Park West and Industry Drive. However, there are many challenges that need to be overcome, one of which is crossing over the critical wetlands along the west side of the Green River and coordination with WSDOT at the West Valley Highway intersection. Recommendation 1. Conduct a feasibility study to extend Minkler Boulevard from Industry Drive to West Valley Highway while widening the roadway to five lanes between Andover Park West and Industry Drive. 2. Develop a multimodal corridor improvement plan for the entire section between Southcenter Parkway to West Valley Highway. Based on the preliminary data from the Tukwila travel model, Minkler Boulevard should be four to five lanes (depending on the need for a center turn lane) between Andover Park West and West Valley Highway. The route should also include bicycle lanes, consistent with the Bicycle Friendly Route designation from the Walk and Roll plan. Sidewalks and streetscape improvements should be provided consistent with the Sub -Urban Corridor designation in the Tukwila Urban Center Plan for the Southcenter area. Potential alignment for the Minkler Boulevard bridge over the Green River. FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.8.A. Andover Park E from Minkler Boulevard to Strander Boulevard: Bicycle Facility Improvement This project will connect to bicycle facilities to the south on Andover Park East or West (project 1.5.A) and facilities to the north on Andover Park East (project 1.18.A). The recommendation is to add bicycle lanes on Andover Park East, potentially in conjunction with a road diet that would restripe the travel lanes from four to three lanes. The location of this project is shown below. Bicycle Facility on Andover Park East 112 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen an Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.9.C. W Valley Highway from Strander Boulevard to S 180th Street: Sidewalk Improvement The West Valley Highway corridor lacks a sidewalk in many locations. The high vehicle speeds and volumes lead to poor pedestrian levels of service (including a long segment of LOS E on both sides). Pedestrians can use the Green River or Interurban Trails which parallel the corridor, however, these trails have limited accessibility to and from West Valley Highway. LEGEND Level of Service A -9 • D C C • E •i F N NOT TO SCALE Note: Lemel of Service on roadway segmert are PM ONLY, and by direction. Recommendation Require property owners along this corridor to provide sidewalks as redevelopment occurs; the improvements are not recommended as a City project. FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.10.A. S 168th (Pond) Street from Southcenter Boulevard to Andover Park E: New Street Construction This is a new street proposed to be constructed on the south side of Tukwila Pond. The concept of a new road following this alignment is supported in the Southcenter Subarea Plan and is included in the most recent TIP. This road is needed to break up a large block defined by Strander Boulevard and Minkler Boulevard. It may be difficult to construct this roadway without redevelopment occurring on the adjacent properties. Recommendation 1. Conduct a feasibility study to determine alignment and identify engineering constraints. 2. Construct S 168th Street from Southcenter Parkway to Andover Park East. Follow design recommendations in the Tukwila Urban Center Plan for the Southcenter area (see cross section below). New 3 -Lane Roadway 1 Potential alignment for S 168th Street/Pond Street. FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Pond Street 17 5idearalr Bicyde Lane Travel Lane Potential cross section for S 168th Street /Pond Street alignment (looking east). 115 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.11.A. Treck Drive from Andover Park W to Andover Park E: New Street Construction Treck Drive currently ends at the railroad track crossing east of Andover Park East and does not provide a connection to Andover Park West. Recommendation In order to increase network connectivity and emergency response times (and potentially improve LOS at the Andover Park West and Strander Boulevard intersection) in the Southcenter area, Treck Drive should be extended west to Andover Park West. This will require installation of an at -grade railroad crossing and the construction of a new roadway west of the railroad tracks. City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.12.A. Green River and Interurban Trails from West Valley Highway: Bicycle Facility Improvement and Signage Due to high vehicle volumes and speeds along West Valley Highway, the bicycle LOS is E/F in the northbound direction and D in the southbound direction. No bicycle lanes are provided and the shoulders are narrow in spots, providing little separation from vehicles. While the on- street service is poor along this corridor, the Interurban Trail and Green River Trail provide cyclists with an off - street option. However, there are limited opportunities to access these trails and no wayfinding signage. Recommendation 1. Work with property owners along the east side of West Valley Highway to gain more access to the Interurban Trail between Strander Boulevard and S 180th Street. 2. Pursue the extension of Minkler Boulevard across the Green River and provide access to the Green River Trail as part of the new bridge (see project 13). 3. Consider access improvements to the Green River Trail near S 180th Street. For example, there is an informal trail between Sperry Drive and the Green River trail south of S 180th Street that could be improved. 4. Pursue a rails -to- trails project if the existing rail bridge across the Green River south of Strander Boulevard becomes an abandoned rail corridor. 5. Provide wayfinding signs at the following locations: a. West Valley Highway /S 180th Street intersection (access to both Green River and Interurban Trails) b. Sperry Drive (access to Green River Trail) c. S 180th Street /72nd Avenue S (Interurban Trail) d. New access easements that may be gained between the Interurban Trail and West Valley Highway between Strander Boulevard and S 180th Street e. West Valley Highway /Minkler Boulevard (Green River Trail and potentially the Interurban Trail if the extension of Minkler Boulevard is built) f. West Valley Highway /Strander Boulevard (Interurban Trail) g. Christensen Road /Strander Boulevard (Green River Trail) h. Baker Boulevard /Andover Park East (Green River Trail) i. West Valley Highway and proposed multi -use trail extending from Baker Boulevard (Interurban and Green River Trails) j. West Valley Highway /Longacres Way (Interurban Trail) FEHRt PEERS 117 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.13.B Strander Boulevard and W Valley Highway: Intersection Improvement The extension of Strander Boulevard from West Valley Highway to Oakesdale Avenue was included in the 2030 model. The travel demand in the corridor will increase when the extension project is completed. The intersection of Strander Boulevard and West Valley Highway is expected to operate at LOS F during the PM peak in 2030 with the geometry planned as of July 2011. • 2010 level of service: LOS B (16 seconds of delay) in AM peak hour and LOS D (39 seconds of delay) in PM peak hour. • 2030 level of service with the planned geometry and signal operation: LOS D (46 seconds of delay) in AM peak hour and LOS F (greater than 150 seconds of delay) in PM peak hour. arDe TACO C>. BELL PT; 11 +01 +DO JACK IN THE BOX JOINT VSE - lThOL CC?BIE01IRi ,J u 2 +pq 1 3 +o0 BNSFI BRIDGE 1} The proposed schematic roadway drawing of Strander Boulevard east of West Valley Highway (drawing as of July 2011). Recommendation Modify the proposed Strander Boulevard extension project design to include the following: k. Add westbound to northbound right turn lane. At minimum, this lane should be 300 feet long (300 feet is the distance from the intersection to the UPRR tracks). A 500 foot turn lane would be preferable given the turning volume; however, a longer lane would require a longer bridge span of the UPRR tracks. This could lead to a steeper grade from the UPRR underpass to the West Valley Highway intersection, and consequently, higher costs. I. Increase the length of the westbound to southbound left turn pocket. This turn pocket should be as long as possible while retaining the central bridge columns under the UPRR tracks. m. Widen the eastbound approach to include two left turn lanes, a through lane, and a shared through -right lane. n. Add right turn overlap phases to the southbound and westbound right turn movements. o. Add sidewalks on the south side of Strander Boulevard between the Green River bridge and the east City limit. 118 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Recommended improvements at the Strander Boulevard /West Valley Highway intersection. Based on plans from the City of Renton, the additional westbound to northbound right turn lane can be accommodated while preserving the fast food building at the northeast corner of the intersection. However, because of grade changes and the need for a retaining wall, the initially proposed 14 foot multi- use trail on the north side of Strander Boulevard between the Renton City limit and West Valley Highway may not be accommodated with the additional lane. To preserve a trail connection between the Interurban Trail and the Green River trail, it is recommended that the proposed TIP project (see project 26) to construct a new pedestrian /bicycle bridge across the Green River, along with a connection to the Interurban Trail, be implemented. Depending on the alignment, this connection may also require a signalized crossing of West Valley Highway. Implementing the intersection changes recommended result in a substantial decrease in delay to around 100 seconds in the PM peak hour, but this intersection is still forecasted to operate at LOS F. 119 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen ' e Plan Updat - - Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.14.A. Baker Boulevard and Andover Park W: Tukwila Urban Center, Transit Center This project, included in the TIP, will upgrade the transit center along Andover Park West near Baker Boulevard, improving multimodal travel choices in the Southcenter area. 120 FEHRt PEERS Connection to Tukwila Station City of Tukwila: Background Report for the Transportation Element of the Comprehen an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.15.B. Baker Boulevard from Andover Park W to W Valley Highway: Pedestrian and Bicycle Facility Improvement This project is related to project 1.5.A (which discusses bicycle deficiencies in the Southcenter Area) and connects to projects 1.11.A and 1.18.A (bike facilities on Andover Park East). This project consists of four components and will facilitate active transportation connections between the Tukwila Urban Center and the Sounder light rail station. It is needed to increase pedestrian mobility, improve access, and support more urban levels of development within walking distance of the Tukwila station. The four components include: • Between Andover Park West and Christensen Road, restripe Baker Boulevard to include two parking lanes, two bicycle lanes, and two travel lanes. • Construct a pedestrian /bicycle bridge between the terminus of Baker Boulevard over the Green River to the Interurban Trail. Depending on final design, a signalized crossing of West Valley Highway may be required. Baker Blvd n Potential alignment for the Pedestrian /Bicycle Bridge over the Green River. • Connection from West Valley Highway to the Interurban Trail. • Connection from the Interurban Trail to the Tukwila commuter rail /Amtrak station. Tukwila Pkwy Add Bicycle Lanes Andover Park W Multi -Use Trail 12l FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 illik Project 1.16.C. 1 -5 Northbound Off -Ramp and Southcenter Parkway: Intersection Improvement The signalized intersection of the 1 -5 northbound off -ramp and Southcenter Parkway is expected to be congested during the Saturday peak hour in 2030. Increased volumes on the north, south, and east approaches will result in increased traffic congestion. Vehicles from the east and west approaches to this intersection would experience the most delay. • 2010 weekday level of service: LOS A (8 seconds of delay) in AM peak hour and LOS C (34 seconds of delay) in PM peak hour. • 2010 midday and Saturday level of service: LOS C (24 seconds of delay) in midday peak hour and LOS D (42 seconds of delay) in Saturday peak hour. • 2030 weekday level of service: LOS B (14 seconds of delay) in AM peak hour and LOS E (62 seconds of delay) in PM peak hour. • 2030 midday and Saturday level of service: LOS C (24 seconds of delay) in midday peak hour and LOS F (123 seconds of delay) in Saturday peak hour. Recommendation Work with the Southcenter Mall owner to realign the mall driveway to be opposite the 1 -5 off -ramp while providing an additional westbound right turn lane. Further improvement could be made by adding a second eastbound left turn lane on the off -ramp; however, there is limited right -of -way and any improvements on this leg would require WSDOT concurrence and potentially would be a WSDOT project. Aerial photo of the 1 -5 northbound off - ramp /Southcenter Parkway intersection 122 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen an Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.17.A. Andover Park W from Strander Boulevard to Tukwila Parkway: Roadway Widening and Center Turn Lane Construction This project, included in the TIP, will construct a center median with turn pockets and boulevard -type landscaping from Tukwila Parkway to Strander Boulevard. It will restrict driveway movements through access management and will widen corridor sidewalks. The project is expected to ease traffic congestion and increase access to businesses along Andover Park West. Construction is expected to be complete in 2013. 123 FEHRt PEERS 3icycle' ;aciIity'DJptois on Andover Park -E in tir'e'Sauthce-.ter §*ea Blvd Alterative 1: N arrow to2 Larres and Add On-Street Parking and Bicycle Lanes Alterative 2: N arrow to 3 Lanes and Add Bi9cle Lanes Alternative 3: Increase Right -of -Way to Provide 3 Lanes, Bicycle Lanes, and On- Street Parking NOT TO SCALE City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan U .d Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.18.A. Andover Park E from Strander Boulevard to Tukwila Parkway: Bicycle Facility Improvement As noted in project 1.5.A, the levels of service for bicycles on the arterials in the Southcenter area are in the range of LOS D to F on many streets. To improve conditions for cyclists on Andover Park East, three alternatives were considered to add bicycle lanes between Tukwila Parkway and Strander Boulevard. The site area is shown below. All three options reduce the current vehicle lanes from four lanes north of Baker Blvd and five lanes south of Baker Boulevard. Cross sections for each alternative are shown in order in the following graphic. 124 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Andover Park E Existing Sidewalk 7.5' Parking 6' Bicycle Lane 11' Travel Lane 11' Travel Lane Alternative 1 Andover Park E Existing 6' Sidewalk Bicycle Lane 11' Travel Lane — 7.5' Bicycle Parking Lane 11' 11' Turn Lane Travel Lane Alternative 2 Andover Park E 8' Sidewalk 7.5' Parking 6' 11 Bicycle Travel Lane Lane 6' Bicycle Lane Existing Sidewalk Existing Sidewalk Turn Lane Alternative 3 11' Travel Lane 6' Bicycle Lane 7.5' Parking 8' Sidewalk Alternatives 1 and 2 can be constructed within the existing right -of -way. Alternative 1 would add on- street parking, but would not provide a center turning lane. The lack of this lane may lead to roadway congestion, especially during peak periods, due to the number of driveways that access Andover Park 125 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Updat Transportation Analysis and 2030 Improvement Recommendation May 2012 East. The third alternative provides a turning lane, parking lanes, and a new wider sidewalk. However, the additional ROW required to accommodate all the lanes substantially increases the project costs. Recommendation Implement Alternative 2 in the near to mid -term. Establish development agreements to implement Alternative 3 as properties redevelop. 126 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.19.B. Tukwila Parkway and 61st Avenue S: Intersection Improvement The intersection of Southcenter Boulevard and 61st Avenue S is forecast to operate at LOS F during the Saturday peak hour in 2030. With the increase in employment and housing in the Southcenter area and Tukwila South, the traffic volumes through this intersection increase significantly when compared to existing conditions. The poor performance at this intersection is primarily the result of the backup of southbound traffic at the Tukwila Parkway /61st Avenue intersection. Due to the proximity of these intersections, they must be analyzed together. • 2010 weekday level of service: LOS B (11 seconds of delay) in AM peak seconds of delay) in PM peak hour. • 2010 midday and Saturday level of service: LOS D (48 seconds of delay) and LOS D (49 seconds of delay) in Saturday peak hour. • 2030 weekday level of service: LOS B (15 seconds of delay) in AM peak seconds of delay) in PM peak hour. • 2030 midday and Saturday level of service: LOS E (58 seconds of delay) and LOS F (more than 150 seconds of delay) in Saturday peak hour. Recommendation hour and LOS D (43 in midday peak hour hour and LOS D (54 in midday peak hour There are some long -term improvements that can be made along 61st Avenue S that would substantially improve traffic operations. However, these improvements are limited by the constrained capacity across 1- 405. Therefore, recommendation 1 below outlines a "mid- term" improvement that could be achieved without widening the bridge and recommendations 2 and 3 describe a longer -term solution. Change the lane configuration at the southbound approach to the Tukwila Parkway /61st Avenue S intersection to allow free right turns. This would require a minor change with the island and C- curbing to prevent any lane changes to turn into the mall entrance immediately west of 61st Avenue S. This action would reduce overall intersection delay by about 30 seconds, although the overall delay would still exceed 150 seconds and the LOS would be F under Saturday peak hour conditions. Traffic operations could be further improved if the 61st Avenue Bridge was widened to include four southbound lanes, widening to five southbound lanes just after the bridge at the Tukwila Parkway intersection. The widening of the bridge would have to be accomplished as a part of the future 1 -405 widening, which would not occur prior to 2030. This option could also allow for reconfiguration to allow direct mall ingress /egress at this location. If this solution were provided under 2030 conditions, the Saturday peak hour LOS would be F. However, delay would be substantially less than the conditions without the bridge widening. 127 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 "Mid- term" improvement recommendation to address congestion at Southcenter Boulevard /61st Avenue S. 128 FEHRt PEERS "NI City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendation May 2012 Project 1.20.C. Tukwila Parkway from 61st Avenue S to 66th Avenue S: Bicycle Facility Improvement A 12' wide multi -use sidepath will be constructed on the north side of Tukwila Parkway between 61st Avenue S and 66th Avenue S. The side path would be separated from the street by a 4' landscape strip (except for at transit stops). There is no facility along the north side of the road today. In areas where existing transit stops are located, the stops may need to be placed behind (to the north of) the side path to maintain non - motorized access. Note that with the opening of the Tukwila Transit Center in September, 2013, the bus zone west of Andover Park West will be closed. A crosswalk should be painted across the onramp to eastbound 1 -405, and bollards should be placed on each side. In addition, crosswalks should be added across Tukwila Parkway at the Southcenter Mall driveway (across from the onramp to 1 -405), at Andover Park West (east leg), and at Andover Park East (east and west legs). The improvements can be made within the existing right -of -way. Some utilities on the north side of the road, including street lamps and signal poles, may need to be relocated. A 350' long (approximate) retaining wall will be needed between 61st Avenue S and the 1 -405 onramp. Tukwila Parkway is planned to be extended to the east at the time the 1 -405 widening project occurs. The design and construction of a trail or other non - motorized improvements to Tukwila Parkway will most likely occur at the time 1 -405 is widened and Tukwila Parkway is extended to the east. Apptak 350 LP R€temm9 Well Remove Existing Concrete Ranter. Install Curb, ADA Ramps, and Lending Now 12 -Foot Trad pnferstate 405 See B -22 for Cetails See B-24 for Detail Approx. Location of Existing 63 -Inon Water Line Install 1 ADA Ramp New Bollards (TYP.) Now Cmsawelk rrsp.) Add Pedestrian ■gnal and Posh Potions for New Crosswalks. yfRIGHfTLPN ELCrelRnll Install 1 ADA Ramp install 1 ADA Ramp Add Pedestrian Signal and Push Buttons for New Crosswalk, Retrofit ADA Ramp New Bus Pad New 4-Foot 105510500 Strip New 12 -Foot Trail Install 9 ADA. Ramp Remove Guardrail as Needed WaytrdIng S1gnaga )r11,.) See B-25 lo, Details Future Trail Connection to Green River Trail 41MIIIIMIirentli New 4-Foot Landscape Snip Approx. Lomtlon of Existing BBdnrh Water Lino Install 1 ADA Ramp Add Pedestrian Signet and Push Duda. for New Crosswalk. Modify Traffic Signal to Detect Sioyoles as Needed. 129 FEHRif PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.21.C. Tukwila Parkway from 66th Avenue S to W Valley Highway: Roadway Extension The extension of Tukwila Parkway from 66th Avenue S to West Valley Highway was originally proposed in the long range plan of the 1 -405 improvement project. The City adopted this project as a part of the Tukwila Urban Center Plan for the Southcenter area. To implement this project, the 1 -405 ramps would have to be realigned. Therefore, the extension of Tukwila Parkway would have to be carried out as a part of the future 1 -405 project. At this time, it is uncertain when this project would be implemented and how the costs would be shared amongst the City and WSDOT. This project would reduce traffic congestion at the Southcenter Boulevard and West Valley Highway intersection and provide an additional crossing over Green River to the Southcenter area from the east of the river. The following figure shows the design concept of Tukwila Parkway extension and relocated 1 -405 ramps. Design concept for the Tukwila Parkway extension Recommendation Work with WSDOT to implement the extension of Tukwila Parkway as a part of the future 1 -405 improvements. This improvement should incorporate complete streets principles and at a minimum include sidewalks, bicycle lanes /multi -use trail, and a connection to the Green River trail. The design of the street should be consistent with the Urban Corridor standards defined in the Tukwila Urban Center Plan for the Southcenter area. In addition, the 68th Avenue bridge across 1 -405 should include wide sidewalks and bicycle lanes when reconstructed. 130 FEHRk PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.22.C. Southcenter Boulevard and 1 -405 Southbound Off-Ramp: Intersection Improvement The intersection of Southcenter Boulevard and the 1 -405 SB Off -ramp would operate at LOS F during the PM peak in 2030. This is an unsignalized intersection. The poor LOS can be attributed to the northbound to westbound left turn movement. The forecasted increase in demand for the eastbound movements on Southcenter Boulevard leads to fewer gaps for the northbound left movement resulting in increased delay. • 2010 level of service: LOS A (7 seconds of delay) in AM peak hour and LOS D (29 seconds of delay) in PM peak hour. • 2030 level of service: LOS C (23 seconds of delay) in AM peak hour and LOS F (more than 150 seconds of delay) in PM peak hour. Since this intersection is operated by WSDOT, the City would need to work with WSDOT to reduce the PM peak period delays. The queues from this intersection would likely reach the 1 -405 mainline without a signal in 2030. Given that this solution primarily benefits WSDOT traffic operations, no City costs are assumed for this improvement. Recommendation Request that WSDOT install a signal. This intersection would operate at LOS B with a signal in the PM peak hour in 2030. Aerial photo of the existing conditions at the Southcenter Boulevard /I -405 Northbound Off-ramp 131 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehens. an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 1.23.B. Southcenter Boulevard from 53rd Avenue S to 66th Avenue S: Bicycle Facility Improvement (Walk & Roll B22) This project, from the Walk & Roll Plan, involves two design components. Along Southcenter Boulevard between 53rd Avenue S and the Macadam Road S, the road will be restriped to allow for five foot bike lanes along both sides of the road. The existing sidewalk on the north side of the street underneath the I- 5 bridge will remain, and there will be no impacts to bridge abutments. East of Macadam Road S, to the bridge over the Green River, a 12 foot wide sidepath will be added along the north side of the road. The existing sidewalk could be widened for this facility. Future widening of 1 -405 will impact the design of non - motorized improvements to Southcenter Boulevard, as well as other routes providing access into the Southcenter area including the 61st Avenue S bridge, the 66th Avenue S bridge, and Tukwila Parkway. The design of non - motorized improvements along Southcenter Boulevard, the 61st Avenue S and 66th Avenue S bridges, and Tukwila Parkway will need to be carefully considered as part of the future 1- 405 widening project. New 5-F00t Eike Lena Reconstruct Raised Madkn LA] EIRE 45 LANE Bollards (Typ 7 New 12-Foot Trail rnp.) New 12 -F001 Tian Frnonp Planed 1 Fool horn Roadway — and 1 Fact tarn Trait gyp.) 2501.F of Wad 7 _ , 700 LF of MI S�u7:hIC@IFi @f BIV S New 5-Foot Bike Lens Painted White Type C Curb 150 LF of Wall fiasonehuol 5,dotIng Steinway IOOLF of Well Panted Bike Lana Sign: Yield to Blbe0 POtettli91 MUlti Use @ridge Poe0ble Driveway Rawne0udio i �0 LF ar Well New 12 -Foos Troll TAAL Way004ng Signagr 40 - Nth Ave 5 Vie Cm0cwelk -- Conned to Existing Trail Widen end Reatlpe Roadway 0 Allow 5-Foot Bike Lane Painted Bike lane 0f (1 peg ''i1 'r N r Restrpe Mr 211 -Foot Westbound Lana, 211 - Foot Ea0m0Omd Lanes.1 55001 Eastbound Bike Lana, and a 12 -Foot Center Tom Lane Ova 300 LF of wet Reconstruct Dilating 150 LF We1 eo o a neo HIT 13 FEHRif PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 irt Project 1.24.A. Southcenter Boulevard from 61st Avenue S to 62nd Avenue S: Sidewalk and Crosswalk Improvement Many sections along the south side of Southcenter Boulevard lack sidewalks. The lack of a sidewalk is reasonable along much of Southcenter Boulevard because there are no housing or commercial developments located on the south side of the street. However, to allow for better transit access on Southcenter Boulevard, it is recommended that a sidewalk be provided on the south side of the street between 61st Avenue S and 62nd Avenue S. A King County Metro bus stop is located between these streets. To avoid conflicts with vehicles turning left from Southcenter Boulevard to 62nd Avenue S, it is recommended that a new crosswalk also be installed on the east leg of this intersection. Recommendation • Add a sidewalk on the south side of Southcenter Boulevard between the 61st Avenue Bridge and 62nd Avenue S. Add a new crosswalk on the east leg of the intersection. • Add a pedestrian refuge space in the median. • Conduct a detailed traffic safety to determine whether the additional crosswalk can be safely provided. Recommended sidewalk improvements along Southcenter Boulevard near 62nd Avenue S. 133 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Updat Transportation Analysis and 2030 Improvement Recommendation May 2012 Project 1.25.B. Southcenter Boulevard and 65th Avenue S: Sidewalk and Crosswalk Improvement Similar to project 1.24.A, 65th Avenue S as well, a new crosswalk is recommended at 65th Avenue S on the east leg of the intersection. This crosswalk will allow pedestrians to take refuge in the painted median of Southcenter Boulevard without standing in the left turn lane. As part of this improvement, a new sidewalk on the south side of Southcenter Boulevard would need to be constructed between the new crosswalk and the existing King County Metro bus stop. This will require a retaining wall on the south side of Southcenter Boulevard. Recommendation • Add a crosswalk on the east leg of the Southcenter Boulevard /65th Avenue S intersection and construct a short segment of sidewalk to connect this crosswalk to the existing bus stop. • Add a pedestrian refuge space in the median. • Conduct a safety study before this project is implemented. 1. 0 woo svog wow loom a low IOW woo r Southcenter Blvd Recommended pedestrian improvements along Southcenter Boulevard near 65th Avenue S 134 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 AIM Project 1.26.A. Southcenter Boulevard and 66th Avenue S: Intersection Improvement The intersection of Southcenter Boulevard and 66th Avenue S is expected to operate at LOS F during the PM peak hour in 2030. The eastbound through movement and the westbound left movement experience the most delay as they conflict with one another. • 2010 level of service: LOS B (15 seconds of delay) in AM peak hour and LOS D (47 seconds of delay) in PM peak hour. • 2030 level of service with the existing geometry and signal operation: LOS B (18 seconds of delay) in AM peak hour and LOS F (121 seconds of delay) in PM peak hour. It is possible to reduce the 2030 PM peak hour delay without widening this intersection. Changing the second westbound through lane into a left turn lane would provide additional capacity for the heavy left turning volumes and improve the intersection performance. Recommendation Modify the existing westbound approach lane configuration to one through lane and two left turn lanes. Note that this is a relatively minor improvement which the City could complete in the short -term. Recommended improvements at the Southcenter Boulevard and 66th Avenue S intersection 135 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 1.27.B. Southcenter Boulevard and W Valley Highway: Intersection Improvement Due to shifts in traffic patterns predicted by the Tukwila travel demand forecast model, the traffic congestion at the Southcenter Boulevard and West Valley Highway intersection is expected to decrease slightly under 2030 conditions despite slightly higher overall volumes through the intersection. Even with the reduced delay (caused principally by a shift in traffic from left turn to through movements), the intersection would continue to operate at a poor level of service in 2030. • 2010 level of service: LOS E (63 seconds of delay) in AM peak hour and LOS F (more than 150 seconds of delay) in PM peak hour. • 2030 level of service: LOS D (42 seconds of delay) in AM peak hour and LOS F (112 seconds of delay) in PM peak hour. This intersection has left and right turn lanes on all approaches and dual left turn lanes on the southbound approach. It would not be desirable to add traffic lanes to this intersection because the existing 1 -405 mainline and ramp overcrossings would limit the effectiveness of new lanes. In addition to poor traffic operations at this location, the large footprint of the intersection combined with the large- radius right turns makes this area difficult to traverse on foot. While there are no practical improvements to traffic operations at this location without coordination with long -term WSDOT modifications to the 1 -405 corridor, several pedestrian improvements are recommended below. Recommendation 1. Coordinate with WSDOT to modify the southbound channelized right turn lane by bringing traffic to the intersection or by reducing the corner radius of the lane. 2. Add high visibility crosswalks and advanced yield markings on the channelized right turn lanes to improve pedestrian visibility. 3. Provide additional pedestrian amenities (additional crosswalks, landscaped buffer) as shown below. Colored /Textured Crosswalk with Advanced Yield Markings sw Gad wN Colored /Textured Crosswalk with Advanced Yield Markings 1` ‘ Recommended improvements at the Southcenter Boulevard /West Valley Highway intersection FEHRt PEERS 136 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TIF ZONE 2 RECOMMENDED TRANSPORTATION IMPROVEMENTS This section provides details on the 2030 recommended transportation improvements that are located in Tukwila TIF Zone 2. As was the case for TIF Zone 1, Table 23 lists the improvement measures based on the evaluation of existing and 2030 transportation operations, the City's 2012 -2017 Transportation Improvement Program, and the Walk and Roll Plan. Estimated costs are also presented in the table and Figure 34 shows the location of these projects. TABLE 23 — RECOMMENDED TRANSPORTATION IMPROVEMENTS IN TIF ZONE 2 Project Location Improvement Priority A -B Cost (Thousands) Priority C Cost (Thousands) 2.1.0 Macadam Road S. from S 150th St to Southcenter Blvd Bicycle lanes and widening $3,871 2.2.A Interurban Ave S from Fort Dent Way to S 143rd Street Implement planned sidewalk and roadway improvements $11,100 2.3.B Macadam Rd S from S 150th St to S 144th St Add sidewalks $405 2.4.A Macadam Rd S and S 144th Street Intersection improvements to add a dedicated northbound left turn lane $627 2.5.A 53rd Ave S from S 144th to S 130th PI Widening, bike lanes, sharrows. $1,190 TOTAL $13,322 $3,871 137 FEHRfrPEERS 5 125th St 324!B 129th cc E LEGEND Intersection Projects 1 • Pedestrian Improvements 1 • Auto Improvements Roadway Projects 1s.0 Pedestrian Improvements 1■1 Bicycle Improvements 1' Auto Improvements Zone Boundary 0 N NOT TO SCALE 5 140th St X3:16 °B S 146th St S 148th St - -3.6.B S 144th St 31'10:BJEW311,1e6 Southc nter Blvd 122iC �q�P IS 1:27.B� 405 7 ?3e 5323Afr" u' ?B4�c " An FEHRk PEERS \ \fpse2 \data2 \2010Projects \SE 10- 0181.00_Tukwila_TransElement\ Graphics \G IS \MXD \April_2012 \fig34_zone2. mxd CITY OF TUKWILA - TIF ZONE 2 2030 PROJECTS FIGURE 34 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Recommended Improvements in TIF Zone 2 The following projects are based on the analysis of existing and 2030 transportation conditions. Project 2.1.C. Macadam Road S from S 150th Street to Southcenter Boulevard: Pedestrian and Bicycle Facility Improvement (Walk & Roll B19) This project would Widen Macadam Road S to allow for two 11 -foot travel lanes, and five foot bike lanes in both directions. This would require a fill wall to be constructed along approximately 1,200 feet of the roadway. A seven foot parking lane along the east side of the road would be retained between S 150th Street and S 152nd Street to serve local uses. The improvements can be made within the existing right - of -way; however there may be some impacts to existing utilities along the east side of the road. See S-1g for Bicycle Improvements New Crosswalk at Bus Stop. Location and Design to be Based on Further Engineering Studies. 5cuthcegterr 9�vd See B -22 for Details 139 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen an Update Transportation Analysis and 2030 Improvement Recommendation May 2012 Project 2.2.A. Interurban Avenue S from Fort Dent Way to S 143rd Street: Roadway Reconstruction Many sections of Interurban Avenue S operate at pedestrian LOS D, E or F because sidewalks are missing along large portions of the corridor, particularly on the west side of the street. The City completed 90 percent design to add sidewalks on both sides of Interurban Avenue S between Fort Dent Way and S 143rd Street. If implemented, this improvement would provide LOS A to C conditions along the entire east side of Interurban Avenue S between East Marginal Way and Southcenter Boulevard. North of the 1 -5 ramps there is less of a need to provide sidewalks on the west side of Interurban Avenue S because there are no homes or businesses on that side of the street. Recommendation Construct sidewalks between Fort Dent Way and 143rd Street per the TIP. LEGEND Level M Sery ice E F NOT TO SCALE ?Sate: Leval of Service on roadway segments are PM ONLY, and 6y direction. 140 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 2.3.B. Macadam Road S from S 150th Street to S 144th Street: Sidewalk Improvement (Walk & Roll P10) Macadam Road will be widened to the west to allow for two 11 foot travel lanes, and five foot bike lanes in both directions. A five foot wide sidewalk will be constructed on the east side of the road from south of S 144th Street to S 150th Street. Pedestrian crosswalks should be added across Macadam Road S to connect to transit stops on the west side of the road at two locations, including one crossing between S 150th Street and S 152nd Street, and another south of S 152nd Street. FEHR j PEERS 141 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 2.4.A. Macadam Road S and S 144th Street: Intersection Improvement This project, from the Tukwila TIP, would improve the intersection at Macadam Road /S 144th Street by widening Macadam Road at the intersection to allow for a dedicated northbound left turn lane. Project 2.5.A. 53rd Ave S from S 144th Street to S 130th Place: Roadway Widening and Bicycle Facility Improvement (B17) This project, from the Walk & Roll Plan, involves several components. On 53rd Avenue S, between S 144th Street and S 137th Street, the road will be widened and restriped to provide a five foot bike lane in each direction. In addition, five foot wide sidewalks will be built on each side, and new crosswalks will be installed across 53rd Avenue S at S 144th Street, S 139th Street, and S 137th Street. Along S 137th Street, the road will be widened and restriped to provide a five foot wide bike lane in both the eastbound and westbound directions between 52nd Avenue S and 53rd Avenue S. A new five foot wide sidewalk will be constructed on the south side of the street. North of S 137th Street, both 52nd Avenue S and 53rd Avenue S will be reconfigured as a one -way couplet. 53rd Avenue S between S 137th Street and 52nd Avenue S will be widened both to the east and west and restriped to provide one 11 foot wide northbound travel lane and a five foot wide bike lane. A new five foot wide sidewalk will be constructed on the east side of the road. 52nd Avenue S between S 137th Street and 53rd Avenue S will be widened both to the east and west and restriped to provide one 11 foot wide southbound travel lane and a five foot wide bike lane. A new five foot wide sidewalk will be constructed on the west side of the road. On 52nd Avenue S, from 53rd Avenue S to Interurban Avenue S, sharrows will be installed in both directions. This portion of the road is relatively short in length, has turn lanes and is adjacent to the park and ride lot. 142 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TIF ZONE 3 RECOMMENDED TRANSPORTATION IMPROVEMENTS This section provides details on the 2030 recommended transportation improvements that are located in TIF Zone 3. Table 24 lists the improvement measures based on the evaluation of existing and 2030 transportation operations, the City's 2012 -2017 Transportation Improvement Program, and the Walk and Roll Plan. Estimated costs are also presented in the table and Figure 35 shows the location of these projects. TABLE 24 — RECOMMENDED TRANSPORTATION IMPROVEMENTS IN TIF ZONE 3 Project Location Improvement Priority A -B Cost (Thousands) Priority C Cost (Thousands) 3.1.B S 160th St / 53rd Ave S from 42nd Ave S to Klickitat Dr Sharrows and widening $2,654 3.2.B Klickitat Dr from 53rd Ave S to Southcenter Blvd bridge Extend multi -use trail $1,686 3.3.A 42nd Ave S from S 144th St to S 160th St Bicycle boulevard $161 3.4.B S 152nd St from Tukwila International Blvd to 42nd Ave S Add sidewalks $1,605 3.5.A S 150th St from Tukwila International Blvd to 42nd Ave S Add sidewalks $2,603 3.6.B S 148th St from Tukwila International Blvd to 46th Ave S Add sidewalks $3,117 3.7.B S 146th St from Tukwila International Blvd to 47th Ave. S Add sidewalks $3,756 3.8.B 51st Ave S from S 144th St to Southcenter Pkwy Widening and sharrows $1,823 3.9.A S 144th St Multimodal roadway improvements $1,825 3.10.B S 144th St from 42nd Ave S to 51st Ave S Sidewalks on south side $2,102 3.11.B 144th St S from Tukwila International Blvd to Macadam Rd S Bicycle lanes $26 3.12.B S 144th St at 1 -5 Preliminary engineering for new sidewalks across 1 -5 $100 3.13.A 40th Ave S / 42nd Ave S from S 128th St to S 144th St Bicycle lanes and sidewalks $1,696 3.14.B S 142nd St from Tukwila International Blvd to 37th Ave S Add sidewalks $1,282 3.15.B S 141st St from Tukwila International Blvd to 42nd Ave S Add sidewalks $93 3.16.B S 140th St from Tukwila International Blvd to 46th Ave S Add sidewalks $3,952 3.17.B Macadam Rd S from S 133rd St to S 144th St Bicycle sharrows $134 3.18.B S 135th St /37th Ave S from Military Rd S to Tukwila International Blvd Signage and bicycle lanes $508 3.19.A E Marginal Way from S 103th St to Macadam Rd S Bicycle lanes $35 3.20.A S 133rd St /SR 599 Ramps Intersection improvements $190 FEHRfrPEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TABLE 24 — RECOMMENDED TRANSPORTATION IMPROVEMENTS IN TIF ZONE 3 3.21.B S 130th Street from Tukwila International Boulevard to Macadam Road S Roadway Widening and Bicycle Facility Improvement $4,244 3.22.B E Marginal Way / 40th Ave S & S 130th St Re -align 40th Ave. S and create a new unsignalized intersection $163 3.23.A S 115th St/42nd Ave S from E Marginal Way to S 133rd St Sharrows and signage $45 3.24.B S 125th St/50th PI S from 46th Ave S to east city limits Bicycle route signage and landscaping $677 3.25.B Tukwila International Blvd from Green River Bridge to 13400 Block Signal Sidewalks added south of bridge $2,040 3.26.A East Marginal Way from Boeing Access Rd to Interurban Ave S Wide shoulder and bicycle lanes $35 TOTAL $36,552 $0 144 FEHRt PEERS LEGEND Intersection Projects 1 • Pedestrian Improvements 1 • Auto Improvements 1 • Transit Improvements Roadway Projects 1 Pedestrian Improvements Bicycle Improvements 1 Auto Improvements Zone Boundary D N .27.B S 160th St 351! B 1.14.A Strander Blvd S cc jr Baker D Blvd Y 1!15!8 O. ZO -o 3 a a. Tukwila'- 1.11.A -a- v Pond d c v t S168thSt 'o fAiNiTAIIr NOT TO SCALE 1.6.A MinklerBI d 1!5!A _ w Y a fir FEHRk PEERS \\ Fpse03\ fpse2\ Data2\ 2010Projects\ SE10- 0181.00_Tukwila_TransElement \G raphics \G IS \MXD \April_2012 \fig35_zone3.mxd CITY OF TUKWILA - TIF ZONE 3 2030 PROJECTS FIGURE 35 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Id Recommended Improvements in TIF Zone 3 The following projects are based on the analysis of existing and 2030 transportation conditions. Project 3.1.B. S 160th Street and 53rd Avenue S from 42nd Avenue S to Klickitat Drive: Bicycle Facility Improvement (Walk & Roll B21) This project involves two design components. Along S 160th Street, sharrows will be installed in both directions. Along 53rd Avenue S, between S 159th Street and S 160th Street, the roadway will be widened to add a five foot climbing bike lane southbound (uphill) and a five foot sidewalk on the west side of the street. Sharrows will be added to the northbound lane (downhill) for this segment. Between Klickitat Drive and S 159th Street on 53rd Avenue S, a new five foot sidewalk will be constructed on the east side. Sharrows will be installed in both directions. r Sharnwsymeal lisp) Wayillr Ing5lgaage New 5•Fool Sidewalk fi Wayflnt ing 5lgnage o Crystal SpnngS Park Fo, Ode le Wayfirm ing slg age to Crystal Springs Park. Us. Ctasswalkaiamps> l Inl6f e:ba APO rOO 500 LP Cut wan Now 0•Faol Sidewalk New 15-Foa Bike Lana WeyarMlnB Slglege FEHRif PEERS 146 City of Tukwila: Background Re Transportation Analysis and 20 May 2012 port for the Transportation Element of the Comprehensive Plan Updat 30 Improvement Recommendations Project 3.2.B. Klickitat Drive from 53rd Avenue S to Southcenter Parkway: Walkway Improvement The pedestrians on Klickitat Drive between the Southcenter Boulevard bridge and Southcenter Parkway experience LOS D to F conditions. Traffic volumes are high along the corridor and sidewalks are not provided. However, an off -road trail is provided along Klickitat Drive south of 53rd Avenue S to the bridge over 1 -5 on the southwest side of this road. Note that this project is within WSDOT's limited access area. Project does not include widening of the 51st Avenue S bridge. Recommendation 1. Extend the multi -use trail from 53rd Avenue S to the 51st Avenue S bridge, where there are existing (although very narrow) sidewalks. This trail should be placed along the north /east of the street with a new crossing at 53rd Avenue S. 2. Enhance the existing multi -use trail with pedestrian scale lighting and a shorter fence between the trail and Klickitat Drive. This improvement could be completed as part of a rehabilitation project of the existing walkway when it reaches the end of its useful life. 3. Work with WSDOT to widen the existing SR 518 overpass to accommodate the multi -use trail on the east side of the structure. LEGEND Level of Service A - D • C • E D • F NOT TO SCALE FEHR�'PEERS 147 lomMI City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Ado ruew multae trail Abe pedE-striarr -s.a .I: • rs Recommended pedestrian improvements along Klickitat Drive. 148 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.3.A. 42nd Avenue S from S 144th Street to S 160th Street: Bicycle Boulevard Addition (Walk & Roll B14) This project involves two design components. The road will be designed as a "bicycle boulevard" to improve bicycle movements and reduce vehicular movement and speeds. On 42nd Avenue S between S 144th Street and S 154th Street (Southcenter Boulevard), sharrows will be installed in both directions. South of S 154th Street, the road will be restriped for a 14 foot northbound lane with sharrows and an 11 foot lane in the southbound direction. Sharmw Symbol Il yp -1 rf stree t -1 rkir>q 1 -str Ckb BIKE ROWE I' - � I lid I1UUIIILH 1 i I ■ 'aix'Ae INEr 1 IIMI I WIEll iml See P -& for Details See B -18 and P -5 for Details Recommended Location for Monitoring Speed See P -7 for Details See P -12 for Delalls Speed Radar Sign See P -8 for Details Widen Roadway as Necessary and Res1nps for a 14 -Foot Narthtound Lana, an 11 -Foot Southbound Lane, and a 5 -Foot Southbound Climbing Lnne S[ALC ou o 149 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehens. an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.4.B. S 152nd Street from Tukwila International Boulevard to 42nd Avenue S: Sidewalk Improvement (Walk & Roll P8) S 152nd Street between Tukwila International Boulevard and 42nd Avenue S will be widened and restriped to allow two eleven foot travel lanes (one in each direction), and a new five foot wide sidewalk along each side of the road. However, an eight foot wide sidewalk is recommended for 250 feet on both sides of the road adjacent to parcels immediately east of Tukwila International Boulevard, because of the higher density land uses anticipated to occur at this location. A crosswalk would be installed at the intersection with 42nd Ave S. New 8 -Foot Sidewalk Approa 252 LF Widen and Reatitpe Tor 2 11 -Font Travel Lanes and an 8-Fun Poking Lane New Grosses& New Stop Bar See 8 -14 for 0e11148 • New -Foot Si2ewelk Alden and Restripe for 2 11 -Foot Travel Lanes and an 8-Foot Parking Lane 150 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehens& an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 le MOM Project 3.5.A. S 150th Street from Tukwila International Boulevard to 42nd Avenue S: Sidewalk Improvement (Walk & Roll P12) S 150th Street between Tukwila International Boulevard and 42nd Avenue S will be widened and restriped to allow two eleven foot travel lanes (one in each direction), an eight foot wide parking lane on each side, and a new five foot wide sidewalk along each side of the road. A new crosswalk would need to be installed at the intersection with Tukwila International Boulevard. New B -Feat Sidewalk — Appro>< 154 LF New 5-Foot Sidewalk New crueswalk 0-7 I 5 150th St New 5-Foot Sidewalk —1 Widen end 1pe for 211 fool Travel Cane and 2 S -FFaat Parking Lanes FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen an Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.6.B. S 148th Street from Tukwila International Boulevard to 46th Avenue S: Sidewalk Improvement (Walk & Roll P7) S 148th Street between Tukwila International Boulevard and 46th Avenue S will be widened and restriped to provide two eleven foot travel lanes, an eight foot wide parking lane on the south side, and a five foot wide sidewalk on both sides of the street. Crosswalks across S 148th Street, and bulbouts with curb ramps would be included at the intersections with Tukwila International Boulevard, 42nd Avenue S, and 46th Avenue S. New Creeswalk (1YP.) New 5-Foot Sidewalk See B•14 for Details New Slop Bar New 5-Foot Sidewalk W'dun and fie$iripe fur 2 11 -Fat Travel Lanes and an 8 -Fool Paining Lane FEHRt PEERS 152 7 New 5-Foot Sidewalk W'dun and fie$iripe fur 2 11 -Fat Travel Lanes and an 8 -Fool Paining Lane FEHRt PEERS 152 City of Tukwila: Background Report for the Transportation Element of the Comprehen an Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.7.B. S 146th Street from Tukwila International Boulevard to 47th Avenue S: Sidewalk Improvement (Walk & Roll P6) S 146th Street between Tukwila International Boulevard and 47th Avenue S will be widened and restriped to provide two eleven foot travel lanes, a seven foot wide parking lane on the south side, and five foot sidewalks on both sides of the road. Crosswalks across S 146th Street, and bulbouts with curb ramps would be included at the intersections with Tukwila International Boulevard, 42nd Avenue S, and 46th Avenue S. Sea 84 4 for Qetalls Now CNSavAlk R'N Install 1 ADA Ramp Widen and Pinstripe for 2 11 -Fool Travel Larne and a 7 -Foot Parking Lane install 1 ADP, Ramp W Ida, arid R®tdpe for 2 11 -Foot Travel Lannon and a 7 -Foot Panting Lana Now 5 -Foot Sidewalk 5 FEHRt PEERS 153 City of Tukwila: Background Report for the Transportation Element of the Comprehen e Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.8.B. 51st Ave S from S 144th Street to Southcenter Parkway: Bicycle Facility Improvement (Walk & Roll B20 Northern Portion) Between S 144th Street and SR 518, the road will be restriped and widened as needed to allow for two 14 foot travel lanes. Sharrows will be installed in both directions. A ramp is proposed along the east side of 51St Avenue S to connect the bike lanes along S 154th Street to 51st Avenue S. Crosswalks should be painted across both 51st Avenue S, and S 154th Street. Construction will likely require fill walls due to slopes. Slaarrmv Symbol (TYp) Appron BOO If Ftt Wan Tela1 on Mel AveS See BAB and p.S for Details See B.18 br Cetalls Wayanding Signage la51st AveS N. 12 -Foot Wade Ramp Snot a rar Bnyales - New 1 Cresaamlk — ti Reatnpe and Widen as ner ovary for 214-Faal Shared Linea s New Mega to Be Belt lo, 212 -Fool naval Laney, 25-Faot Bake Lanes. and a -Foot Sidswa &on Both Sides Dating D ,e Lane Now Crosswalk al East End at planted Median Mending Slg nags to Stsl Ave S fi t Realdpe and Widen as necessary tar 214 -Fear Snared Linea Valence ng Slgnnge to S 184th St Isting Bake Lane Weytnding Signege to S 154th St INANE 1 ACA Ranrp 154 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen ' e Plan Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.9.A. S 144th Street from 42nd Avenue S to Tukwila International Boulevard: Multimodal Improvements This project would improve bicycle and pedestrian amenities from 42nd Avenue S to Tukwila International Boulevard and would include design and construction of new pavement, curb, gutter, sidewalks bike lanes, drainage, illumination, and utility undergrounding. 155 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Up dat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.10.B. S 144th Street from 42nd Avenue S to 51st Avenue S: Sidewalk Improvement (Walk & Roll P5 S 144th Street between 42nd Avenue S and 51st Avenue S will be widened and restriped to allow for two eleven foot travel lanes and a five foot bike lane on each side of the road. A new five and a half foot wide sidewalk (including curb) would be constructed on the south side of the road between 42nd Avenue S and just west of the existing sidewalk at 51st Avenue S. Widen Existing &Idewak to 10 Feat See 8 -181N BIEytl01R00400y lingrEVeanente See 3 -13 for Deeds Widen Exs4mp Sidewalk tG 10 Feet ex Add - New 10 -Foot Sidewalk (Where Maegg) 44th St Sn a coals ex .- New ¢Fppl SMawaIk �f New 486 LF Rofalnigl Wall FEHRt PEERS Instal 1 AiIA Ramp See 0 -18 for 0Ioyr4&Readway Impavamen10 156 City of Tukwila: Background Re Transportation Analysis and 20 May 2012 port for the Transportation Element of the Comprehensive Plan Updat 30 Improvement Recommendations Project 3.11.B. S 144th Street from 42nd Ave S to Macadam Road S: Bicycle Facility Improvement (Walk & Roll B18) S 144th Street between 42nd Avenue S and Macadam Road S will be restriped to allow for two eleven foot travel lanes and a five foot bike lane on each side of the road. 157 FEHRli'PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen +e Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.12.B. S 144th Street Bridge over 1 -5: Preliminary Engineering for Sidewalks This project would conduct preliminary engineering for new sidewalks across the S 144th Street /I -5 bridge. This improvement will ultimately improve the pedestrian environment in this part of Tukwila and provide a high - quality pedestrian crossing of 1 -5. This project in within WSDOT's limited access right -of- way. 158 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehens. an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.13.A. 40th Avenue S and 42nd Avenue S from S 128th Street to S 144th Street: Pedestrian and Bicycle Facility Improvement (Walk & Roll B13) This project involves several design components. On E Marginal Way S (north of S 130th Street), the roadway will be widened as redevelopment occurs to allow two 11- travel lanes, five foot bike lanes on both sides, and eight foot parking lanes on both sides. On 40th Avenue S, the road will be designed as a "bicycle boulevard" to improve bicycle movements and reduce vehicular movement and speeds. A five foot wide sidewalk will be installed on the east side of the road where there are currently gaps. At S 136th Street, a four foot climbing lane for bicyclists will be installed in the southbound direction, while a sharrow is installed for the northbound direction. On 42nd Avenue S, sharrows would be installed in both directions. The section of 42nd Avenue S north of S 139th Street should be restriped for 12 foot lanes in both directions. 'Arden Raad and Reel*pa for 11 Foot Travel Lane, 5 Fool Bike Lanes, 0 Foot Penang Lane. and 0 19 -Foot Sldewek on the Wed Side Sao 13-91 for Deals an E Malglnd Way 5 Soul! a15 1301* 5t See 0 -50 and P -1 for 001@11. 4 -Feu Clmhing Bike Lir. 0.5-Foot Sidewalk 350LF Relafn no Wee f Matching 50* Pre 51ee1 — 40th Ave S Aaa+na 5806 SF of RiohtaFWey Brtycle Det.. Loop. Make Impcvmne0 When Tra10o 9lpnd ie Installed at InlereeCilpn. Fume Trail Raixvrwrenead Looa[on for Mar*orog Speed New Crosswalk New Si yck Friendly Ir iory0Upon — New Sidewalk New LSltlatepe Mee 1 ___ RFeh5plae 050 on5 159 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.14.B. S 142nd Street from Tukwila International Boulevard to 37th Avenue S: Sidewalk Improvement (Walk & Roll P4) S 142nd Street between 37th Avenue S and Tukwila International Boulevard will be widened and restriped to allow two eleven foot travel lanes (one in each direction), a seven and a half foot wide parking lane on each side of the road and a new five foot wide sidewalk along each side of the road. Crosswalks across S 142nd Street, and bulbouts with curb ramps would be included at the intersections with 37th Avenue S, and Tukwila International Boulevard. Install 1 ADA Ramp New Slip Bar Inalall 1 ADA Ramp Haw 5- footSidewalk —� ti New Crosswalk Install 1 ADA Ramp New 5 -Foot Sidewalk —' Install 1 ADA Ramp Widen and Reetr1pe for 211 -Foot Travel Lamas end 2 7.5 -Foot Parking Lames 160 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.15.B. S 141st Street from Tukwila International Boulevard to 42nd Avenue S: Sidewalk Improvement (Walk & Roll P3) This project would add a 6 foot sidewalk on the south side of S 141st Street between Tukwila International Boulevard and 42nd Avenue S. 161 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensi . an Update, Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.16.B. S 140th Street from Tukwila International Boulevard to 46th Avenue S: Sidewalk Improvement (Walk & Roll P2) This project includes two components. S 140th Street between Tukwila International Boulevard and 42nd Avenue S will be widened and restriped to allow two eleven foot travel lanes, two eight foot parking lanes, and a six foot wide sidewalk along each side of the road. S 140th Street between 42nd Avenue S and 44th Avenue S will be widened and restriped to allow two eleven foot travel lanes, two eight foot parking lanes, and a five foot wide sidewalk along each side of the road. Crosswalks across S 140th Street and curb ramps would be included at the intersections with 42nd Avenue S and 44th Avenue S. an r . — En AZxvo Ns -7,4%, P. . 3r . 4;1, • ,47 - 1., . Install 1 ADA Ramp New 6 -F00I Sidewalk New Slop Bar Widen and Reekipe for 211 -Fret Travel Lama and2 &Feat Parklllg Lanai 100011 1 ADA Ramp 1 I w r� Sea B-13 br 2.01000 12 ADA Ramps • New 5-Fool Sidewalk New Creaswalk F00) Install 1 ADA Rang Now 6-Foot Sidewalk 75 LF New 5-Foot Sidewalk %L_ 012011 ADA Ramp Relocate Mobile Houle New 5-Feet Umiak !YID Instal 2 ADA Ramps - Rabe. Buldmg WWI 1 ADA Ramp Widen. and ReshVa fort 11 -Feet ravel Lanes aid 25-Fool Parking Lanes Install 1 ADA Ramp Install 2 ADA Ramps New 5-Foot Sidewalk New 5-Foot Sidewalk FEHRt PEERS 162 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendation May 2012 Project 3.17.B. Macadam Road S from S 133rd Street to S 144th Street: Bicycle Facility Improvement (Walk & Roll B16) Macadam Road S would be improved for bicyclists by adding sharrow markings along the entire roadway between S 133rd Street and S 144th Street. Wayfnaing $ognage (TyP.) 163 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen ' e Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 1 Project 3.18.B. S 135th Street and 37th Avenue S from Military Road S to Tukwila International Boulevard: Bicycle Facility Improvement (Walk & Roll B12) This project involves two design components. On S 135th Street, between Military Road S and 37th Avenue S, a bike boulevard would be constructed. Improvements should be limited to bike route /bike boulevard signage. On 37th Avenue S, between Tukwila International Boulevard and S 135th Street, the road will be restriped to provide a 14 foot shared lane (northbound), 11 foot travel lane (southbound), and five foot bike lane (southbound) for climbing the hill. A sharrow would be installed in the shared northbound lane. In addition, a new five foot wide sidewalk would be constructed on the west side of the road. WayNnding Signege (TYp 1 S 136th St dab NO CANE 20D LF Retaining Wall New S -Foot Sidewalk Shanow Symbol f.yp.l Widen and stripe fora 14-Foot Snared Lane on the East Side, an 11 -Foot Travel lane, and a 5-Fort Ckmhing Bike Lane on the West Side Recommended Location Ter Monitoring Speed 9l f enuR •0 Recommended _ocatian far Monitoring Speed FEHRif PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehens& an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.19.A. E Marginal Way from S 130th Street to Macadam Road S: Bicycle Facility Improvement (Walk & Roll B31) E Marginal Way S will be restriped to provide two 12 foot travel lanes, and a five foot wide bike lane on each side of the road between S 130th Street and Macadam Road S. Wayfinding signage will be placed along the route to guide users to the trail that connects through Riverton Park, as well as to the ramp in the vicinity of the Macadam Rd S bridge that connects E Marginal Way up to Macadam Road S. 165 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 i Project 3.20.A. S 133rd Street and SR 599 Ramps: Intersection Improvements This project would improve the intersection at S 133rd Street /SR 599 Ramps by adding new traffic signals. This project was assumed to occur as a background improvement to be completed prior to 2030. 166 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.21.B. S 130th Street from Tukwila International Boulevard to Macadam Road S: Roadway Widening and Bicycle Facility Improvement (Walk & Roll P1 and B30) In the long term, S 130th Street, between Tukwila International Boulevard and Macadam Road, will be widened and restriped to allow for a twelve foot wide travel lane in each direction, and a five foot wide bike lane in each direction. A new five foot wide sidewalk will be constructed on both the north and south sides of the road and ADA accessible curb ramps installed at the sidewalks. Bicycle wayfinding will be added at key locations. Between Tukwila International Boulevard and E Marginal Way S, an eight foot wide parking lane will be provided along the north side of the road. No on- street parking will be allowed east of E Marginal Way S. See 1-6 for Detaee WayPoOding Sig nage (T111 03 I Install 4 ADA Curb Ramps al Intemeclion Install ADA Curb Ramps at Intersection Raw a 0054 005401 lk Instal 1 ADA Ramp -- 'Ft 110 -Foot Retaining Well See &13 for Webs New S Foot Skkwelk Install ADA Reno W ofa -Fat 5ldewalk 200.Fool Retallkq Wel Instal 1 ADA Ramp 100' of a Foot Sidewalk Install ADA CUM ROMPS at Intef6eIXb11 won and Restdps Read far 212-Foot Trawl Lanes. 25 -F41I nixe Lanes. and en B-Faot Parking Lane on the North Side r - -- New 5 Foot Sidewalk Instal I ADA Ramp See &51 for Delete E Erstkg Sidewalk t Ialall ap 2 HM Curb Ramps at Inleaaglen Reslrlpa and Widen Rued for 21 2_F®! TrawN Lanes and 25 -Foot We (Lanes New 5 Foot Sidewalk 130.F0O1 Retaining Wall New Stop 101 Sae 0,31 tor Donde Widen and Reships Road for 212 -Foot TrarN lanes, 2 ,Fact Bike lanes, and an 11-Foot Parking Lane 00 Sw North Side. I- New Crusawak Instal 1 AIM Rana, FEHRif PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 dab dilMNr Project 3.22.B. E Marginal Way /40th Avenue S and S 130th Street: Intersection Improvement The south leg of this intersection is split with E Marginal Way and 40th Avenue S. This unusual configuration can be confusing for drivers, cyclists, and pedestrians to navigate. Recommendation 1. Maintain the existing four way stop operation as this intersection is not expected to meet a signal warrant. Continue monitoring conditions and install a traffic signal if warrants are met. 2. Re -align 40th Avenue S and create a new unsignalized intersection at E Marginal Way south of the intersection with S 130th Street. Consistent with the Tukwila Bicycle Friendly Routes and Sidewalk Segments Improvement Options Report, add paint or curbing at 40th Avenue S such that it meets E Marginal Way at an approximate 90 degree angle. FEHRt PEERS Recommended configuration of East Marginal Way and 40th Avenue S intersection 168 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.23.A. S 115th Street / 42nd Avenue S Sharrows and Signage (Walk & Roll B11) This project includes bicycle improvements along S 115th Street, 42nd Avenue S, and Macadam Rd S (between Interurban Avenue S and S 133rd Street). Along S 115th Street, the roadway will be designated as a shared bike route, with sharrows and signage installed in both the eastbound and westbound directions. The road will not be widened in the short term. On Macadam Rd S, the roadway will be signed as a bike route and sharrows will be installed. 169 FEHRt PEERS City of Tukwila: Background Report for th Transportation Analysis and 2030 Improvc May 2012 e Transportation Element of the Comprehensi +e Plan Update ment Recommendations Project 3.24.B. S 125th Street/50th Place S from 46th Avenue S to E City Limits: Bicycle Facility Improvement (Walk & Roll B15) This project involves two design components. Along S 125th Street, bike route signage will be installed in both directions. Wayfinding signage will also be installed to direct bicyclists to the trail through the Community Center, to Codiga Park, and to 50th Place S. Along 50th Place S, a 14 foot wide trail, separated by a four foot landscaped strip will be installed on the west side of the road, from S 125th Street to just north of Railroad Avenue. &ID 13.11E ROUTE New Bollards FYP S 125th St 7'%Weyflntling Manage (41041. I Due to Geomethc Chrataint (A Steep Stops). Exerting Roadway Narrows ,1 A44 WaylndIng Biome New 14.Foot Trail and 4-Foot Landscape Ship Naw Psdh Iron Raadway to Park Replace Farms with Bollards Sign: Trail Ends, Rued Nenows Mead 170 FEHRif PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 3.25.B. Tukwila International Boulevard from S Boeing Access Road to 13400 Block Signal: Pedestrian Improvement (adapted from Walk & Roll B6 This project includes improvements to Tukwila International Boulevard South of the Green River bridge, from the SR 599 NB onramp to S 116th Street, a 12 foot multi -use trail would be constructed on the west side of the road, separated from the road by a concrete barrier. This trail will provide improved access to the existing trail along the Green River. South of S 116th Way, the trail would cross under the SR 599 SB offramp, and then follow the west side of the ramp for approximately 500 foot before it terminates and transitions to a new sidewalk south to the 13400 Block Signal. FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen e Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 1 Project 3.26.A. E Marginal Way from S Boeing Access Road to Interurban Avenue S: Bicycle Facility Improvement (Walk & Roll B9) This project improves bicycle facilities along E Marginal Way S between Boeing Access Road and the intersection at Interurban Ave S. It includes restriping existing shoulders along E Marginal Way from Interurban Avenue S to S 112th Street, for five foot wide bike lanes in both the northbound and southbound directions. In the vicinity of the intersection with S 116th Street, wayfinding signage is recommended to guide bicyclists and pedestrians to the Duwamish River Trail. North of S 112th Street, sharrows will be installed in both directions due to the lack of roadway width, and to minimize impacts to adjacent businesses and their associated parking areas. As of Fall 2011, it appears that at least a portion of this project has been completed, namely the shoulder striping between S 112th Street and Interurban Avenue S. 172 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 TIF ZONE 4 RECOMMENDED TRANSPORTATION IMPROVEMENTS This section provides details on the 2030 recommended transportation improvements that are located in Tukwila TIF Zone 4. The projects shown in Table 25 are based on the evaluation of existing and 2030 transportation operations, the City's 2012 -2017 Transportation Improvement Program, and the Walk and Roll Plan. Estimated costs are also presented and Figure 36 shows the location of these projects. TABLE 25 — RECOMMENDED TRANSPORTATION IMPROVEMENTS IN TIF ZONE 4 Project Location Improvement Priority A -B Cost (Thousands) Priority C Cost (Thousands) 4.1.B Tukwila International Blvd from S Boeing Access Rd to Green River Bicycle Facility Improvement $2,040 4.2.B S 112th St Add bicycle lanes from Tukwila International Blvd to E Marginal Way $786 4.3.0 Boeing Access Rd / E Marginal Way S Intersection Reconfigure to remove northbound through movement $259 4.4.B Boeing Access Rd Walkway Provide sidewalks and improve pedestrian crossings $3,062 4.5.A Boeing Access Rd Bridge replacement from Airport Way to Interstate 5 $30,734 4.6.B S. Ryan Way from Martin Luther King Junior Way S to 51st Ave S Bicycle Facility Improvement $44 4.7.0 S 102nd St and S Norfolk St from W Marginal PI to Airport Way S Bicycle Facility Improvement $5,907 4.8.0 E Marginal Way from N City Limits to S Boeing Access Road Bicycle Facility Improvement $8,861 4.9.0 W Marginal PI S from 14th Ave S to Existing Green River Trail Trail Extension $2,971 TOTAL $36,666 $17,998 173 FEHRfrPEERS LEGEND - Intersection Projects 1 • Auto Improvements Roadway Projects 1••e Pedestrian Improvements 1. Bicycle Improvements 1L Auto Improvements Zone Boundary 0 N NOT TO SCALE S 93rd St s 901 4.3.0 Access Rd 4 4.B 45• A ,�1 \O�JJ am mr . d m tt. S112thSt w *21. B 3 a 3523!4 a m FEHRk PEERS \ \fpse2 \data2 \2010Projects \S E 10- 0181.00_Tukwila_TransElement\ Graphics \G IS \MXD \April_2012 \fig36_zone4.mxd CITY OF TUKWILA - TIF ZONE 4 2030 PROJECTS FIGURE 36 City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Recommended Improvements in TIF zone 4. Project 4.1.B. Tukwila International Boulevard from S Boeing Access Road to Green River: Bicycle Facility Improvement (adapted from Walk & Roll B6) This project includes improvements to Tukwila International Boulevard from Boeing Access Road to S 130th Street. The portion from Boeing Access Road to S 112th Street would include restriping to provide a five foot bike lane on both sides of the street. No pedestrian improvements would be made in this area. South of S 112th Street to the Green River bridge, the road would be widened and restriped to provide five foot bike lanes on each side, and a new five foot wide sidewalk on the west side would replace the existing sidewalk (which would be removed to allow for the bike lanes). A new five foot sidewalk would also be constructed on the southeast corner of Tukwila International Boulevard and S 112th Street, to replace the existing sidewalk that is removed to allow for the bike lanes. 1 11 -12' 11 -12' Center turn lane 12, Typical Crass Section for Option i (Preferred Option) Sea B-5 for Details Instal 2 ADA Ramps New S.Foot Sidewalk 857 -95' Total Width KFGIN YEAR 9, m -� Install 1 ADA Ramp New 5 -Foot Sidewalk Existing Bike Lanes r Dal Any i. Inata[ 2 ADA Ramps Tukwila Intl Blvd Se. glade rao.41. New 5 -Font Sidewalk Widen and Resbps for 2 5-Foot Bike Lanes Install Ramp for Bicycles to Transitiw0 from Roadway to Existing Trail New Jersey Barrier (Connect to Exiting) ) New Crowe/101k (Typ ) Install 2 ADA Ramps. New Jersey Barrier Approx. 120 LF of Retaining Wall SCALE IMAM FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen an Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 4.2.B. S 112th Street Bike Lanes, Tukwila International Boulevard to E Marginal Way (Walk & Roll B5 This project includes restriping S 112th Street between Tukwila International Boulevard and E Marginal Way S to provide 5 foot wide bike lanes in both the east and west directions. The travel lanes will be restriped to two 11 foot wide lanes. At the western approach to Tukwila International Boulevard, the bike lanes will transition to sharrows (both directions), to minimize right -of -way needs and impacts to existing parking. Bike lanes were recently added to S 112th Street, west of Tukwila International Boulevard. The existing sidewalk along a portion of the south side of the road will be extended to E Marginal Way S. A transmission line tower is located along the south edge of the roadway, so the sidewalk would need to wrap around the tower at this location, and a chain link fence would need to be built around the tower. The project boundaries are within an area where the City does not currently have right -of -way. There are no anticipated impacts to existing utilities, although some fencing along the south side of the road may need to be relocated. Existing Blke Lanes ict 1 i. -III ar title' /�!•/ � 41111 :Ir., es - See 0-5 for Details 5harrme Symbol ITYp.) Wayfinding Sign Restiipe for 2 5-Foot Bike Lanes and 2 11 -Feet Travel Lanes BIKE WE Ix #i See 6-6 for Details Connect New 5 Foot Sidewalk to Existing Sidewalk New 5 -Foot Sidewalk (Fyo.) Install 1 ADA Ramp See 9,9 for Dulls B.Fn 6 Chain Link Fence Around Transmission Line Tower. Install Mewls Gate For Maintenance. New Conaele Curb (1-1 9.) Install 1 ADA Ramp Planned Trail 1 176 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 4.3.C. S Boeing Access Road and E Marginal Way S /Tukwila International Boulevard: Intersection Improvement The intersection of Boeing Access Road, East Marginal Way S and Tukwila International Boulevard is a large and complex intersection. The Green River runs west of the intersection, which has four legs, but is at a skewed angle. This intersection operates at acceptable levels of service during the AM and PM peak hours under existing conditions; however, it is projected to operate at LOS E during the PM peak hour in 2030. • 2010 level of service: LOS C (22 seconds of delay) in AM peak hour and LOS D (45 seconds of delay) in PM peak hour. • 2030 level of service: LOS C (27 seconds of delay) in AM peak hour and LOS E (63 seconds of delay) in PM peak hour. Two options have been analyzed to improve the 2030 level of service: 1) construction of a roundabout and 2) reduction of traffic movements. 177 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Roundabout Analysis The levels of service were calculated with a two -lane roundabout based on the method in Highway Capacity Manual 2000. Because of heavy traffic movements from westbound Boeing Access Road to southbound Tukwila International Boulevard, the southbound approach on E Marginal Way S would operate at LOS F during the PM peak hour in 2030. Similarly, heavy traffic movements from northbound Tukwila International Boulevard to eastbound Boeing Access Road would cause the northbound approach on East Marginal Way S to operate at LOS F during the PM peak hour. A two -lane roundabout would not improve the 2030 PM peak hour level of service problem. East Marginal Way I I I E East Marginal Way South . East North Southwest intersection LOS I F�I B F E F Boeing Access Road 178 FEHR PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Traffic Movement Reduction The most effective way to improve LOS at this intersection is to eliminate the northbound through movement on E Marginal Way S. By implementing this concept, there would be additional traffic on northbound Tukwila International Boulevard to E Marginal Way S, but the simplified signal phasing allows this additional traffic to be accommodated with less delay. This intersection without the northbound E Marginal Way S movement would operate at LOS D in the PM peak hour in 2030. In addition to the level of service improvement for vehicles, the reduction of the movements would reduce pedestrian crossing distances. Recommendation Re- design the intersection by eliminating the northbound movement on E Marginal Way S. FEHRt PEERS 179 City of Tukwila: Background Report for the Transportation Element of the Comprehensi +e Plan Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 MEIN Project 4.4.B. S Boeing Access Road from Martin Luther King Junior Way S to E Marginal Way S: Walkway Improvement The pedestrian LOS along Boeing Access Road is poor due to several factors: sidewalks are either not provided or are inadequate, and vehicle volume and speeds are high. While this corridor is not heavily used by pedestrians, there should be pedestrian facilities on at least one side of the street since there are very few crossing opportunities of 1 -5 in this portion of Tukwila. The north side already has several pieces of pedestrian infrastructure including sections of sidewalk and crosswalks. There are many challenges for adding a continuous sidewalk on this road between Martin Luther King Jr. Way S and E Marginal Way, including the design of the freeway off -ramps and the ramps from Airport Way S. In addition, the bridges were constructed without adequate sidewalks. It would be costly to widen the bridge structures to add sidewalks (although such a project is included in the TIP —see project 66); however, both the 1 -5 structure and the BNSF overcrossing provide the opportunity to reduce lane widths or eliminate an auxiliary lane (over the BNSF tracks) to reclaim road space for a sidewalk. Recommendation 1. Provide sidewalks on the north side of S Boeing Access Road from MLK Jr. Way S to E Marginal Way S. 2. Re -align the southbound ramps from 1 -5 and Airport Way that connect with Boeing Access Road by creating intersections rather than sweeping ramps. These would reduce the crossing distance for pedestrians and slow down turning vehicles. 180 FEHRt PEERS City of Tukwila: Background Report for th Transportation Analysis and 2030 Improvc May 2012 e Transportation Element of the Comprehensive Plan Update ment Recommendations - 11111111111 5 Boeing Access Bd 181 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensi . an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 4 Project 4.5.A. S Boeing Access Road from Airport Way S to 1 -5: Bridge Replacement This project will replace the Boeing Access Road bridges over Airport Way, the BNSF railroad tracks, and 1 -5. It is unlikely that these bridges would be replaced without support of a federal bridge replacement grant. 182 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehen an Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 4.6.B. S Ryan Way from Martin Luther King Junior Way S to 51st Avenue S: Bicycle Facility Improvement (Walk & Roll B3) On Ryan Way, between Martin Luther King (MLK) Way S and 51st Avenue S, the road will be restriped as part of a road diet to provide two 11 foot wide eastbound (uphill) travel lanes and one 11 foot westbound lane. Today, there are two travel lanes in each direction, and no bike facilities. Five foot wide bike lanes will be installed on each side of the road. In the downhill (westbound) direction, the bike lane should be terminated in advance of the MLK intersection and the traffic lane tapered to match the existing lane configuration, which consists of three westbound lanes (left turn lane, through lane, through /right turn lane). Sharrows could be installed at the intersection with MLK Way to indicate continuation of the bike route to the west along Boeing Access Road, and to the north along MLK Way. Since there is no roadway widening proposed, the improvements will not impact any utilities, parking or structures, and can be made within the existing right -of -way. 183 FEHRif PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensi . an Updat Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 4.7.C. S 102nd Street and S Norfolk Street from W Marginal Place to Airport Way S: Bicycle Facility and Sidewalk Improvement (Walk & Roll B10) This project includes two components, including improvements to Norfolk Street and S 102nd Street. Along S Norfolk Street, a road diet is recommended, to reduce the current four lane cross section three lanes and add five -foot bike lanes on both sides. New sidewalks will be included on both the north and south sides of the roadway. The eastern portion of Norfolk Street is outside the Tukwila City limits; improvements to this section of Norfolk Street will need to be coordinated with the City of Seattle. All improvements can be constructed within the existing right -of -way, and no significant impacts are anticipated. At the intersection of Norfolk Street and Airport Way S, a crosswalk will be installed across Airport Way S to provide access to the northbound bike lane on that roadway. At the intersection of E Marginal Way S, it is recommended that a pedestrian signal with pedestrian activated buttons be installed for the crosswalk. In addition, the traffic signal should be modified to detect bicycles. There are no major utility impacts anticipated. Along the north side of S 102nd Street, between East Marginal Way S and West Marginal Place, a multi- use trail is recommended. 184 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 4.8.C. E Marginal Way from N City Limits to S Boeing Access Road: Bicycle Facility Improvement (Walk & Roll B2) This project would add a new multi -use trail on the west side E Marginal Way S from the northern city limits to S Norfolk St. The existing railroad would need to be removed in portions of this alignment. Where feasible, the existing sidewalk would be widened to create the new multi -use trail. Just north Norfolk St, the trail would narrow to the existing sidewalk width, due to the limited space and setback of the adjacent building. In general, the multi -use trail could be built within the existing right -of -way, but would require the closure /relocation of the existing rail line. In addition, it would require utility relocation. Reconstruct Driveway to Trail Grade Reconstruct Driveway to Trail Grade New Landscape Ship (Width Vanes Reamer 5 and 14 Feet) Transit Stop Reconstruct Driveway to Trail Grade E Marginal Way S htee See Below Len IL End of Existing Railroad Line Reconstruct Driveway to Trail Grade Existing Bridge Structure Remove Existing Rail. Rai Tes, and Railroad Ballast. Reconstruct 000401g Concrete Sidewalk/Path to 14Foot Aaphad Trap. 0 E Marginal Way S New Bollards (Tyr Trorrll Stop lnslell 1 ADA Ramp Install 1 ADA Ramp Remnstruct Driveway to Trail Grade Reconstruct Driveway to Trail Grade Reconallutt Edging Coneretet SidewoIEPath M 14 -Foot Asphalt Trail. Transit Stop Install 1 ADA Ramp Install 1 ADA Ramp 185 FEHRif PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensi . . ;an Update Transportation Analysis and 2030 Improvement Recommendations May 2012 Project 4.9.C. W. Marginal Place S from 14th Avenue S to Existing Trail: Bicycle Trail Extension (Walk & Roll B1) This project is an extension of the Green /Duwamish River Trail along W Marginal Place S from its current trail ending. The northern portion of the trail will take advantage of an existing sidewalk by widening it to 14 feet. A 500 feet long retaining wall will be required along the east side of the trail for portions in close proximity to the river. Environmental permits would be required and approximately 13,500 SF of right -of- way would be required. End Trail Improvement ways wing Signage New 14 -Foot Trail Widen Existing Sidewalk for 14-Fool Trail New 14 -Foot Trail See Detail 1 on Sheet 01 e6, W Marginal Place See Cetail 1 on Sheet O1 Mathiine See Above Right Sec Detail 1 on Shoot D1 New Rohl-of-Way Lne New 14 -Foot Trail Fisting Transmission Tower. Potential Trail Narrow 10 10 -Foot Minimum Width / 501ards (TYp coraete Jersey Barden separating the New Trail and Existing Roadway Approx. 500 LF Retaining wall With Handrail Connect to Ouwamishl Green Rmer Trail Acquire 13,500 SF of Right-of-Way W Marginal Place S -Highway 99 Centrals Jersey Baffler. Separating the New Trail and Exlseng Roadway SEAILE FEET 18 FEHRt PEERS City of Tukwila: Background Report for the Transportation Element of the Comprehensive Plan Update Transportation Analysis and 2030 Improvement Recommendations May 2012 APPENDICES A - F This section contains the Appendix Files for the City of Tukwila Transportation Element Update of the Comprehensive Plan. It is organized as follows: • Appendix A contains the Multimodal Level of Service Analysis Report, previously submitted to the City. • Appendix B contains maps detailing the segment -only pedestrian LOS. • Appendix C contains the land use forecast information used to determine future auto LOS. • Appendix D contains the revenue forecasts for transportation projects from 2011 -2030. • Appendix E contains the detailed cost estimate sheets used to develop costs for the detailed projects. Additional cost information was taken from the TIP and the Walk & Roll Plan and are available in their respective source document. • Appendix F contains two projects that were considered, but ultimately dismissed as infeasible. FEHRt PEERS 187