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Home My WebLink AboutReg 2024-05-20 Item 6A - Update - 42nd Avenue South Bridge ReplacementCOUNCIL AGENDA SYNOPSIS Initials Meeting Date Prepared by Mayor's review Council review 05/20/24 JR ITEM INFORMATION ITEM No. 6.A. STAFF SPONSOR: ADAM COX ORIGINAL AGENDA DATE: 05/20/24 AGENDA ITEM TITLE 42nd Ave S Bridge Replacement Project — Detour Bridge Discussion CATEGORY I1 Discussion 5/20/24 ❑ Motion Mtg Date ❑ Resolution Mtg Date ❑ Ordinance Mtg Date ❑ Bid Award Mtg Date ❑ Public Hearing Mtg Date ❑ Other Mtg Date Mtg Date SPONSOR ❑Council ❑Mayor ❑HR ❑DCD ❑Finance ❑Fire ❑TS ❑Pe.,R ❑Police 11PW ❑Court SPONSOR'S SUMMARY Project staff, stamping structural engineer, and the permit liaison recommend that the detour bridge not be constructed during the replacement of the 42nd Ave S Bridge replacement due to the discovery of the Native American traditional fishing access to the Duwamish River and a culturally sensitive site. the design and project team have discussed the risks that would be associated with constructing the detour bridge as well as removing the detour bridge from the project. ❑ Trans&Infrastructure ❑ CommunitySvs/Safety ❑ Finance ❑ LTAC ❑ Arts Comm. ❑ Parks DATE: COMMITTEE Comm. Comm ❑ Planning/Economic Dev. REVIEWED BY ❑ Planning Comm. CHAIR: RECOMMENDATIONS: SPONSOR/ADMIN. COMMITTEE Public Works Department Forward to Regular New Business Agenda Meeting COST IMPACT / FUND SOURCE EXPENDITURE REQUIRED AMOUNT BUDGETED APPROPRIATION REQUIRED $0.00 $0.00 $0.00 Fund Source: Comments: MTG. DATE RECORD OF COUNCIL ACTION 05/20/24 MTG. DATE ATTACHMENTS 05/20/24 Informational Memorandum dated 05/17/24 Powerpoint Presentation 307 308 City of Tukwila Public Works Department - Had Ponnekanti, Director/City Engineer Thomas McLeod, Mayor INFORMATIONAL MEMORANDUM TO: Full Council Meeting FROM: Hari Ponnekanti, P.E., Public Works Director/ City Engineer BY: Adam Cox, P.E., Interim Traffic Engineer CC: Mayor Thomas McLeod DATE: May 17, 2024 SUBJECT: 42nd Ave S Bridge Replacement Project — Detour Bridge Discussion ISSUE Project update on the 42nd Ave S Bridge detour discussion of the temporary bridge. BACKGROUND The 42nd Ave South Bridge is an important arterial that crosses the Duwamish River and connects the City of Tukwila to surrounding communities and resources. The bridge serves over 10,000 vehicles daily, as well as pedestrians and cyclists connecting to the Green River Trail, the Tukwila Community Center, the Tukwila Park & Ride, and the Allentown neighborhood. It was built in 1949 and designed to last 50 years; it has exceeded its original design life by over 20 years. On December 15, 2021, an over height truck struck multiple members of the bridge truss system. Flame On, Inc., a structural steel heat straightening contractor, was then contracted to make the structural repairs to the bridge. The repairs to the bridge allowed it to open with load restrictions that would accommodate only one-way travel, and on April 4th, 2022, the bridge was reopened in the southbound direction only. It was determined that the best way to have vehicles leave the Allentown neighborhood was to use the traffic signal at Interurban Ave and 42nd Ave S. In November of 2020, Council awarded a design contract to TranTech Engineering, LLC (TranTech) to create an ad -ready design for the 42nd Ave S Bridge Replacement. The project received grant funding ($31.5M) in early 2022 with awards from Puget Sound Regional Council (PSRC), the Local Bridge Program (WSDOT), and Move Ahead Washington. The project has since completed the industry standard milestones of the Type, Size, and Location (TS&L) report, 30% plans and estimate (P&E) review, 60% P&E review, and the 90% P&E submittal. Throughout the TS&L report, 30% P&E, 60% P&E, 90% P&E milestones the timeline for ad -ready plans was extended due to external permit review/acceptance delays. At the 30% P&E submittal milestone, TranTech's permit subconsultant began verifying what agencies require permit applications, but the permitting agencies would not field/take applications for permits until after the 30% P&E threshold was complete. With the transition to 60% P&E, permit agencies informed project staff that internal permit processes required additional time for review and acceptance. With a continuing understanding and external communication of the required permit applications and timeline, the timeline has now been adjusted to have advertisement ready documents ready in late 2026 or early 2027. For the bridge replacement, the project team is continuing to coordinate with over 10 different state and federal organizations for permit applications/acceptance. Tukwila City Hall • 6200 Southcenter Boulevard • Tukwila, WA 98188 • 206-433-1800 • Website: TukwilaWA.gov 309 42nd Ave S Bridge Replacement Project — Detour Bridge Discussion May 17, 2024 Page 2 Given new specific details of the 90% P&E submittal, TranTech's permit subconsultant has the information needed to complete the required material for all the permits listed in the permit table attached to the info memo. The team has been informed by WSDOT that many of the permits happen in sequence and cannot be applied/awarded at the same time. The City continues to coordinate with our granting authorities. Staff have connected with WSDOT Local Programs, the WSDOT Bridge Engineer, and our state lobbyist to ensure that the obligation deadlines will be extended to match the new construction schedule. ANALYSIS In accordance with the National Historic Preservation Act of 1966, the bridge replacement project is required to perform a historic analysis given the age of the bridge and the location of replacing the structure. During the analysis, it was discovered that there are two cultural resources that are impacted by this project. The two resources that are impacted are the Native American traditional fishing access to the Duwamish River and a culturally sensitive site. These two cultural findings added to the permit application delays as a cultural survey was required to better understand the sites. When project staff were informed of the culturally sensitive items that contributed to the permit delay, the team began to study ways to decrease the delay so that construction could start earlier. One methodology discussed and analyzed was removing the temporary detour bridge from the project. During the analysis, the design and project team studied the risks that would be associated with constructing the detour bridge as well as removing the detour bridge from the project. The associated risks for not constructing the detour bridge and constructing the detour bridge are listed below. Risks: - Constructing the detour bridge o The temporary detour bridge alignment disturbs a known Duwamish site. The cultural survey was sent to the Duwamish Tribe per the request from the WSDOT Archaeologist. The comments received from the Duwamish tribe is they strongly preferred the project to not disturb their sacred site. The comments received from the Snoqualmie tribes where they trusted that WSDOT will implement proper protocols for the project. We have not received comments from the Muckleshoot and the Yakima tribes. o Given the complexity of the site and materials to construct the detour bridge, the construction will cost between $4,000,000 to $6,000,000. The temporary bridge is a rented piece of equipment, any delay in the schedule will increase the project costs. o At the start of construction, the contractor will prioritize the construction of the detour bridge. This diverts the contractor from prioritizing the demolition of the current bridge which requires work within the first fish window in July 2027. If the contractor misses this window, the construction team will not be allowed to perform in -water work until July 2028. This extends the construction timeline from 2 fish windows to 3 fish windows. Possibly delaying the construction timeline by one year. Not constructing the detour bridge o Given the removal of an access/egress point to Allentown, there will be an increase in emergency response timing. o Currently there is a water and gas utility line attached to the underside of the current bridge. Without the temporary detour bridge, there is a challenge to rerouting the utilities. Phone: 206-433-1800 • Email: Mayor@TukwilaWA.gov • Website: TukwilaWA.gov 310 42' Ave S Bridge Replacement Project — Detour Bridge Discussion May 17, 2024 Page 3 NEXT STEPS Project staff will present the same information to the Allentown Community at the May 28, 2024, Allentown meeting. FISCAL IMPACT There are no fiscal impacts to the project at this time. The tables below illustrate the funding sources and amounts and the estimated costs for construction in 2017: Grant Funding Source Amount Puget Sound Regional Council $1.5 Million Move Ahead Washington $17 Million WSDOT Local Bridge Program $12 Million Total $31.5 Million Project Phase Estimated 2027 Costs Design/Engineering $2 Million Construction with the detour bridge $31 Million Contingency for in -water pile removal $6 Million Total $39 Million RECOMMENDATION Project staff, stamping structural engineer, and the permit liaison recommend that the detour bridge not be constructed during the replacement of the 42nd Ave S Bridge replacement. ATTACHMENT: 42nd Ave S Bridge Presentation Phone: 206-433-1800 • Email: Mayor@TukwilaWA.gov • Website: TukwilaWA.gov 311 312 N O N 0 co 2 313 0 • ocu on m • 1920s — Bridge was designed. BRIDGE ELEVATION cu a) • 2024 — Design at 90% z 0 I. a) C O V N i 0 V V a) (O i a C a) E V co 0. a) ce CIA CO N a) i 314 U Co a) OD U • m 0 0 it out Detour Brid: - 1 IN 1 z w U U C ci) Ca 0 0 N 0 N (/) a--+ (1) U VI 4-1 C 0 E N N 4_, 0 E 00 NI v) -C 4-1 C 0 E N O z N CU C) 0 NI Closed for extensive v) 0 CU L 0 I. a) 0 a O U I- N i 0 V I V a) .., 0 L a +.• a) E a) U ca 0_ a) ce a) an i m tn a) C N 3111.