Alaskan Way Viaduct Seawall Replacement Program Organization 4
- Slides: 21
Alaskan Way Viaduct & Seawall Replacement Program Organization 4 th Quarter 2009 Progress Report Meeting Date December 9, 2009
Presentation Topics • Program overview. • S. Massachusetts to Union Electrical Line Relocation. • S. Holgate to S. King Street Viaduct Replacement. • Central Waterfront Replacement. § EIS. § Alignment. § RFP.
Program Overview • Governor and Mayor signed a Memorandum of Agreement endorsing the bored tunnel in October. • Electrical Line Relocation Project to be substantially complete in early December. • Holgate-to-King design modifications: estimated $100 million in savings. • Two SR 99 ITS contracts advertised in October; bids opened on one.
Program Overview • Central Waterfront bored tunnel alternative: § CEVP + VE workshops results in new alignment option. § EIS schedule impacted by new alignment; requires aggressive approach to maintain schedule. § SOQ’s received from four teams; evaluations in progress. • Estimate-at-Completion: recent CEVP and estimate results § Bored Tunnel Alternative = $2, 000 million. § Holgate-to-King = $ 443 million. § Other Moving Forward = $ 365 million. § TOTAL STATE = $2, 808 million. • Current Legislated Budget is $2. 4 billion. Need $400 million in Toll Revenue Bond proceeds needed to deliver State scope.
Program Overview • Schedule highlights: § Holgate-to-King: q New conformed bid set with re-design in February 2010. q Bid opening on March 24, 2010. § Bored Tunnel Alternative: § RFP draft complete: February 2010. § ROD in Spring 2010.
Electrical Line Relocations • Recent Activities: § Transmission Circuit #1 was cut and distribution was turned over to SCL for splicing. § Transmission Circuit #2 testing/energization and Royal Brougham Way asphalt restoration was completed. § Demolition of old oil contained cable system from viaduct has been completed. § Distribution lines are being removed. § Facility has been turned back to SCL. WSDOT providing support to SCL to repair an oil leak vicinity University / Western. § Forecast to be substantially completed in early December.
Electrical Line Relocations Demolition of Existing Electrical Cables under Viaduct Emergency Oil Leak Location & Repair
Holgate-to-King Viaduct Replacement • Recent Activities: § Stage 1 (Construction) q New bike and pedestrian path was opened to the public. q Completed 26 k. V duct bank from Station 2+25 to Station 6+13. q Began contract work north of Royal Brougham Way § Stage 2 (Design). q q UPRR and BNSF Whatcom Lead vacation agreements and the BNSF Railroad Construction & Maintenance agreement were finalized. Contract advertised on October 26, 2009.
Holgate-to-King Viaduct Replacement • Recent Activities: § Stage 2 (Continued) q November VE studies resulted in design change recommendations that would: Ø Ø Ø q Remove retained cut undercrossing and associated bridges. Replace undercrossing with an elevated structure that will for Port traffic to bypass the railroad crossing (a new Stage 3 contract). Provide for detour through WOSCA, replacing the west side transition structure connection to the viaduct Above design revisions result in EA re-evaluation to be completed before March 24, 2010 bid opening date.
Holgate-to-King Viaduct Replacement • Challenges & Opportunities: § Reaching agreement on Railroad pre-emption at Atlantic Street with City and BNSF. § Completing Stage 2 design changes and not delay bid opening past March 2010. § Recent design changes result in estimated $100 million savings and reduced construction duration by an estimated six months.
S. Holgate to S. King Viaduct Replacement Previous Design Alaskan Way S. /East Marginal Way S. connector
S. Holgate to S. King Viaduct Replacement Current Proposal
Holgate-to-King Viaduct Replacement 26 k. V Electrical Duct Bank between Ring Vaults 1 and 2 Setting Overhead Poles at Port of Seattle Terminal #46
Central Waterfront / Bored Tunnel Alternative EIS • Recent Activities: § Held cooperating agency EIS review kickoff meetings with the Port of Seattle and King County. § Completed the first and second rounds of co-lead agency reviews of several discipline reports. § Developing a revised SDEIS schedule given recent changes to north and south portals. • Upcoming Activities: § Continue development and co-lead review of SDEIS summary chapters, outline, and selected appendices. § In January, receive and utilize a revised EIS design snapshot. § Target for Record of Decision is Spring 2011.
Central Waterfront / Bored Tunnel Alternative EIS • Challenges & Opportunities: § Meeting the aggressive EIS schedule relies heavily on quick reviews and issue resolution, close coordination with co-lead and cooperating agencies, and aggressive 106 and ESA consultations. Many items are on the critical path.
Central Waterfront / Bored Tunnel Alternative RFP • Recent Activities: § Latest contracting strategy calls for tunnel bore to be design-build; all other packages will be design-bid-build. § Geotechnical investigation program will result in a Geotechnical Baseline Report. Key to risk management and will accompany the tunnel bore RFP. § Bored Tunnel Alternative draft RFP is in review, to include reviews conducted by the City of Seattle. § Issued a RFQ to which four teams have submitted SOQ’s
Central Waterfront / Bored Tunnel Alternative RFP • Upcoming Activities: § Evaluate the four SOQ’s received in December; develop a shortlist. § RFP schedule: q Draft RFP complete: February 2010. q Final RFP complete and issued: June 2010. q Proposals due to WSDOT: October 2010. q Award of the design-build contract: January 2011.
Central Waterfront / Bored Tunnel Alternative RFP • Challenges & Opportunities: § Developing a final RFP for a design-build contract that will remain attractive to proposers. § Balance risk between WSDOT and proposers in a way that is in the best interest of the Department.
Central Waterfront / Bored Tunnel Alternative Alignment • Recent Activities: § CEVP and VE workshops held to maximize efficiencies and reduce costs. § Selected a new alignment option (see diagram next page). § Initiating utility investigations along the new alignment option and addressing right-of-way and building settlement impacts. § New alignment in the north removes the need for construction of the detour for SR 99 and the temporary structure on Harrison Street over SR 99. § Developed south end Preliminary Construction Staging concepts, and updated identified tie-back, staging and acquisition areas.
Central Waterfront / Bored Tunnel Alternative Alignment
Central Waterfront / Bored Tunnel Alternative Alignment • Upcoming Activities: § Conduct additional geotechnical investigations along the new alignment option. § Continue with utility relocations; determine right-of-way needs; assess building settlement risk and mitigation measures. § Document the new alignment option as the baseline against which to manage project delivery. • Challenges & Opportunities: • Complete the design snapshot reflecting the new alignment option so as not to impact the EIS and RFP schedules. • Deliver the overall bored tunnel alternative to an aggressive schedule that opens to traffic in 2015.
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