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HomeMy WebLinkAboutTIC 2019-02-20 Item 3C - Discussion - Proposed 2019 Small Drainage Program{ 4 Akan Ekberg, Mayor Public Works Department Homy Hash, Director INFORMATIONAL MEMORANDUM TO: Transportation and Infrastructure Committee FROM: Henry Hash, Public Works Director ///fr BY: Ryan Larson, Senior Program Manager CC: Mayor Ekberg DATE: February 15, 2019 SUBJECT: Surface Water Fund - 2019 Annual Small Drainage Program Project No. 91941201 Proposed Project List ISSUE Review the proposed 2019 Small Drainage Project is prior to consultant selection for design. BACKGROUND The Small Drainage Program constructs drainage projects throughout the City which are too large for City staff to complete but are smaller than a typical capital improvement project. The projects originate from citizen complaints and maintenance staff recommendations and are compiled on the Small Drainage Project List. Each year the projects are prioritized based on need, expense, permitting requirements, and length of time on the list. The highest priority projects are then designed and constructed to match the available budget. DISCUSSION Staff has reviewed and updated the Small Drainage Program list for 2019. It is recommended that projects with a Priority Ranking of 1 or 2 be constructed in 2019. The three projects ranked as Priority 1 are primarily worker safety repairs to drainage inlet structures that become plugged in high flow events and require work crews to clear them. The cast -in -place pipe (CIPP) projects listed as Priority 2 should be all constructed under the same construction contract since they involve specialty pipe lining work and high mobilization costs, so it is more cost effective to combine these projects under one contract. If design or permitting issues prevent construction of any of the projects in 2019, staff will look to a lower priority project that can be designed and constructed so that the available budget can be used to solve existing drainage needs. FISCAL IMPACT The 2019 Small Drainage Program has $80,000 available for design, $80,000 for construction engineering, and $600,000 for construction. The intent of future design and construction contracts will be to design and construct the selected projects within this budget. RECOMMENDATION Information and discussion item only. ATTACHMENTS 2019 CIP, page 88 2019 Small Drainage Project List WAPW Eng1PROJECTS DR ProjectslAnnual Small Drainage ProgramsI2019 SDP (9 201)1DesigMlnfo Memo Bid SDP - Project Liadocx 11 CITY OF TUKWILA CAPITAL PROJECT SUMMARY 2019 to 2024 PROJECT: Annual Small Drainage PnmWnymn Project No. 9Xx41e01 DESCRIPTION: Select, design, and construct small drainage projects throughout the City. Provide dminaqepmb�maU`mugkou��eCity, including culvert �u�T|p|cxT|om� � rep|auemems, drain extensions, and pavement upgrades. STATUS: Projects for this annual program are taken from Small Drainage Project List. MA|NT IMPACT: Reduces maintenance. ~_,,,,_~_ Ongoing pn8e�.only one year shown in��nvo|umn. Cnn�mcVonexpenses may o�urover *v calendarGu��Em/: years. FINANCIAL Through Estimated in$o0ns 2021 2024 BEYOND TOTAL EXPENSES Design 50 DO Vn BO 80 80 80 80 80 690 Streanmages/Mon|wr 31 35 35 35 38 28 36 0 40 320 Const. Mgmt. sO 45 80 80 80 80 80 OO 80 695 Construction 448 800 515 515 51* 513 514 514 03 *,6*6 TOTAL EXPENSES my 760 710 7m � 71O ~ 70* 710 710 713 6.351 FUND SOURCES Awarded Grant O Proposed Grant 65 65 Mitigation Actual O Mitigation Expected O Utility Revenue 619 895 710 710 710 708 710 710 715 6.265 TOTAL SOURCES my roo 710 710 710 709 710 710 713 6.351 Project Location: Entire System ' oo/y 2024cvp*a Improvement Program 88 12 Staff Recommendation Only - Subject to Change 2019 SMALL DRAINAGE PROJECT LIST February 5, 2019 Priority Ranking Problem Statement Project Description Cost Gilliam Creek & S. 154th — Replace and improve drainage structure DR05540, "the cone". This is the structure at the inlet to the culvert that carries Gilliam Creek under Southcenter Blvd. Rebuild needs to have something similar to the rack on the Gilliam Creek inlet that goes to the river and also improve access to this structure so the crew can maintain it. There might have been some design work started already. Construction $100,000 Eng/Cont 25% 25.000 Total $125,000 1 14811 42°d Ave South — Inlet to pipe on this property frequently plugs up with debris, then overflows onto 42'd Ave South, creating localized flooding. Install a type 2 CB on storm pipe DR13258 (the inlet pipe for the flow running across this property) with a beehive rack on top and trash rack on the inlet pipe to the new structure. Construction $50,000 Eng/Cont 25% 12,500 Total $ 62,500 1 Stairs at the Gilliam Creek Control Structure — Install new stairs for access to the debris grate. Possibly designed in 2016 but the Crystal Springs project prevented it from being done. Construction $75,000 Eng/Cont 15% 11,250 Total $86,250 3 Rip rap has been washed out from the end of outfalls at flapgates #27, #28 and #29 in Gateway Park. Add root wads Replace rip rap, add root wads, HPA needed. Construction $50,000 Eng/Cont 25% 12,500 Total $ 62,500 3 57' Ave South off Interurban Ave behind the Golden Nugget. Bring Type II manhole up to grade by removing 8 feet of 24" riser rings. Add 48"riser sections and new manhole ring & cover. Construction $ 15,000 Eng/Cont 25%© 3,125 Total $ 18,125 4 (Hold, See note) Christensen Road at Kinko's —Need to connect storm systems on Christensen to solve pump problem during high river events. Need to check invert elevations Install 12" pipe between catch basins behind building. Note: This site is currently in for a development permit. Engineer has been told about issue and is proposing a piped system that drains both to Christensen Rd and to APE. High flows will be able to flow from Christensen to APE if needed if system is built. Construction Eng/Cont 15% Total Priority Ranking ProblemStatement Project Description Cost 3 56`'' Ave at one-way street, bubbling problems at the catch basin, Replace 150 feet of 12" storm pipe and (2) Type II manholes. Construction $ 35,000 Eng/Cont 25% 8.750 Total $ 46,250 3 Resident at 10349 Beacon Ave S. has roadway runoff entering her property causing damage to her septic system. Surveyed in 2008. There are three possible solutions to resolve this issue; 1) obtain easements from private property owners to construct new drainage system to the west, 2) construct a deep storm line to Ryan Way, 3) install several infiltration structures along the flow path. The preferred method will need to be determined during design. Construction $ 80,000 Eng/Cont 25% 20,000 Total $ 100,000 3 Allentown — 48th, 49`'' S. 124th — These streets have no formal drainage and have always had problems with runoff into yards and homes from right-of-way. Install new drainage systems in street one street at a time. Construction $ 175,000 Eng/Cont 25%© 43.750 Total (Each) $ 218,750 3 Trail #14 at S. 168th & 53`d — Install storm system under sidewalk to get rid of deep ditch to residence there. From dead end of S. 168th to storm line on 53`d Install (2) Type I catch basins and 400 feet of 12" pipe. Remove deep ditch on north side of home's property. Construction $ 100,000 Eng/Cont 25% 25.000 Total $ 125,000 3 S. 124`h from 43' to corner of 42', north side of street. Construct 275' of 12" pipe and approximately 5 Type I catch basins. Construction $ 80,000 Eng/Cont 25% 25,000 Total $ 105,000 3 On 34th & Military Road — Root plugged, old culvert tile pipe. Replace 18" pipe from Military Road (through old gas station) to 34th, then to corner of S. 144th Street (Approximately 485 ft and 5 Type II manholes) Construction $ 125,000 Eng/Cont 25% 31,250 Total $ 152,525 3 Old broken pipe from ditch on 45th Ave. S. to S. 137th Mismatched pipes, junk system. Replace approximately 450 feet of 12" pipe and add (8) catch basins on east side of 45`h. Construction $ 130,000 Eng/Cont 25% 32,500 Total $ 162,500 Priority Ranking Problem Statement Project Description Cost 3 At the NE corner of 33`d Ave S. and S. 132"d, 3306 S. 132"d manufactured home has 12" CMP/concrete culvert tile pipe running through yard to manhole under deck and then out to pond in neighbor's yard then to 34tlive stream Replace/re-route system, HPA needed. Approximately 125' of 12" pipe and two type I CBs needed. Construction $ 40,000 Eng/Cont 35% 12,687 Total $52,687 3 38' Ave & S. 130tto dead end —Needs new drainage system. Old mismatched pipe, deep ditches, steep driveways. Water running into home on lower side of road. Install new 12" storm system with catch basins and thickened edges to get water to new catch basins. Approximately 470 ft. of 12" pipe and 8 Type I CBs needed. Construction $137,500 Eng/Cont 25% 34.375 Total $175,875 4 S. 150' creek outfall to catch basin on S. 150111(off Macadam Road). Undersized inlet "debris plugs", south of Baptist church. Install new cone grate and Type 1I manhole. Construction $ 25,000 Eng/Cont 15% 3,750 Total $ 28,750 *Design completed in 2016 4 56`t' Ave S & S. 14151 to S. 139th problem area — Problem ditch. Long berms need new drainage system to prevent homes from being flooded. Install approx. 600 feet of 12" storm main and (4-6) catch basins from S. 141'to S. 139t. Fill ditch, both sides of 56th Ave South. Construction $165,000 Eng/Cont 25% 41,250 Total $206,250 4 S. 133`d & S. 134t — Clean rocks and other debris out of 30" CMP pipe on west branch of Southgate Creek. Debris plugs low flow pipe, hard to keep clean. NPDES issue and private property issue. Construction Eng/Cont 25% Total 4 West Valley Hwy at the CAT Rental Store — Railroad tracks to the ditch. Replace 650 feet of 12" pipe and install (5) Type I catch basins. Crossing OK, need R-O-W survey. Construction $175,000 Eng/Cont 25% 43,750 Total $218,750 4 S. 143' & Interurban Ave South — Problem ditch from pipe on S 143`d to flapgate manhole on river. Almost impossible to clean and is a maintenance headache. Install approx. 500 feet of 36" storm main, (1) manhole point to point and fill ditch to river. Construction $125,000 Eng/Cont 25% 31,250 Total $156,250 Priority Ranking Problem Statement Project Description Cost 4 On S. 133`d from Macadam Bridge to Weir Box on S. l 34th — Need to pipe problem ditch. Problem with trees, loose leaves, plugged ditch and storm structure, flooding over roadway and surrounding area. Install 600 feet of 24" pipe and (3) Type 11 manholes. Construction $150,000 Eng/Cont 25% 37,500 Total $187,500 4 On 37' Ave South from S. 126" to S. 128th, then down S. 126t1' to creek — Old mismatched pipe is broken, junk system etc. Replace 750 feet of 12" pipe and install (12) catch basins. Construction $200,000 Eng/Cont 25% 50.000 Total $250,000 4 On S. 130th at East Marginal Way on west side — Old mismatched pipe is broken, junk system etc. From East Marginal Way to 34' — Both sides of road, new system. Replace pipe from ditch on north side crossing with 950 feet of 12" pipe and (15) catch basins, including angle across street. Construction $250,000 Eng/Cont 25% 59,375 Total $309,375 5 Off S. 135th between 37h and 35th — Local crawl space flooding due to no drainage in private alley. Install drainage and hook up homes. Work on Private Alleyway, need petition from property owners for project to proceed. Construction Eng/Cont 15% Total 4 Large Contech pot style vault at Gilliam Creek crossing on S. 154' — vault needs better access for pot cleaning and replacement. Pull lid from vault and add 2-3 feet riser section asphalt area. Add fences and gates for vehicle access for cleaning. Construction $ 25,000 Eng/Cont 25% 6,250 Total S31,250 4 Dead end of S. 109th and 50th— Gravel driveway, home below this issue could be a problem with any directing water over bank. Water runs off S. 109th to 50`h, gravel driveway, washing ruts and flooding home. No easy fix — asphalt, pipe, catch basin, berm to bank?? Construction Eng/Cont 20% Total CIPP LINING PROJECTS Priority Rankin; Problem Statement Project Description Cost 2 Southcenter Blvd @ 61S` Ave South — Storm main needs to be lined between DR04298 and DR04276 to prevent root intrusion. Approximately 110' of 18" pipe. There is also a repair that needs to be made 20' from the south end of this pipe where a guardrail post punctured the top of the Pipe- Construction $ 30,000 Eng/Cont 25%© 7.500 Total $37,500 2 S. 140`s Street @ 38`'' Ave South— Storm main needs to be lined between DR04742 and DR04743 and DR04744 to prevent root intrusion. Approximately 200' of 12" pipe. Construction $ 50,000 Eng/Cont 25% 12,500 Total $62,500 2 S. 152"d Street @ 42°d Ave South — Storm main needs to be lined between DR02222 and DR02223 and DR01867 to prevent root intrusion. Approximately 170' of 12" pipe. Construction $ 42,500 Eng/Cont 25% 10.625 Total $53,125 2 S. 130th Street @ 33rd Place South— Storm main needs to be lined between DR04373 and DR04372 and DR04371 and DR04370 to prevent root intrusion. Approximately 120' of 12" pipe. Construction $ 30,000 Eng/Cont 25% 7.500 Total $37,500 2 40th Ave South @ Southcenter Blvd — Storm main needs to be lined between DR01533 and DR01532 to prevent root intrusion. Approximately 45' of 8" pipe. Construction $ 30,000 Eng/Cont 25% 7.500 Total $37,500