Project Details

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Results Chart for Delivery Method and Financing

Delivery Method

DB
# of Projects: 1
100% of the Results

Background informationProject Created: March 6, 2013

Project Name: SR 520 Bridge Replacement and HOV Program
Year in Operation:
Sector: Transportation
Subsector: Bridge
Status: Design / Construction
Type: Substantial Alteration of Existing Facility
Description: WSDOT will replace the existing 50-year old SR 520 Floating Bridge and approaches from the future west approach structure east of Foster Island in Seattle to Evergreen Point Road in Medina. The existing bridge only has two lanes in each direction, no shoulders and no HOV lanes. The new $US4.65 billion SR 520, which is due to open in late 2014, is significantly larger than its predecessor. The new span’s floating section measures 7,710 feet long (130 feet longer than the previous one) and will carry six lanes of traffic as well as pedestrians and cyclists in a 14-foot wide foot path. WSDOT has more than doubled the number of concrete pontoons supporting the new bridge, relying on 77 such floaters compared to the original’s 33. Furthermore, the structure is designed to endure 90-mph winds and a "1,000-year earthquake event."
Delivery Method as described in the country where it's located: Design Build
Is the project still active: Yes
Comments: "in an effort to save time, the agency took responsibility for the design of the pontoons—a critical aspect of the floating bridge—instead of assigning the responsibility to the design-builder..."

Project Locations

Address: Washington 520
City: Medina
State: Washington
Country: United States of America

Address: Evergreen Point Floating Bridge
City: Medina
State: Washington
Country: United States of America

Address: SR 520
City: Medina
State: Washington
Country: United States of America

Souces of Project Support (Non-monetary)

Checkbox Checked Access to Land
Checkbox Checked Revenue Stream (Cash Flow) Protected Through Long Term Commitment(s) of Public Sponsor(s): In December 2011, WSDOT began tolling the SR 520 which is expected to raise 1.1 billion overall toward the 4.65 billion SR 520 Bridge Replacement and HOV Program. In May 2009, Gov. Gregoire signed ESHB 2211, which authorized tolling on the SR 520 bridge. Tolling the SR 520 bridge allows WSDOT to secure revenue in order to begin pontoon construction in 2011, which is critical to replacing the SR 520 bridge by 2014.
Checkbox Checked Environmental Clearance

Souces of Project Support (Monetary)

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From Public (Government) Sources to Producers: Gov. Gregoire and the Washington State Legislature have secured a variety of state and federal funding sources, including tolling the existing floating bridge, to help pay for the SR 520 program. As of 10/25/12, a revised cost estimate of $4.13 Billion still has an unfunded need of $1.4 Billion. The funding received to date ($2.72 Billion) is detailed further below.

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Direct Cash Support

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From Public Sponsor of Project - Direct Expenditure of Appropriated Public Funds

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From Cash On Hand: As of 10/25/12: State funding (Nickel and TPA) - $0.55 Bilion; Federal funding - $0.12 Billion; Deferred sales tax - $0.14 Billion;

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From Other Public Entities - Direct Grant of Appropriated Public Funds

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Credit Enhancements

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From Public Sponsor of Project: As of 10/25/12: SR 520 Account (tolling and future federal funding) - $1.61 Billion; TIFIA loan - $0.30 Billion

Project Delivery & Finance Method

Project Delivery:
All Public Finance. Public Sponsor contracts for both initial design and construction with a single entity. Public Owner operates and maintains the resulting facility.
Is there an independant checking engineer? Yes

Procurement Approach

Project Component
Qualifications
Based Selection
Request for
Qualifications
Request for
Proposals
Invitation
for Bids
Unsolicited
Proposals

Term for Key Components & Forms of Contract

Project Component
Years
Quarters
Initial Design and Construction
4
0
Forms
Description
 
 

Project Value (If and As Known)

Date of Estimated Project Value: March 6, 2013
Project Value
Hard Cost
Hard & Soft Costs
Construction
$1-5 Billion US
(none)

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