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: September 25, 2019

Project Name: Montlake Section of Hwy 520 Rebuild (Seattle)
Year in Operation: 2024
Sector: Transportation
Subsector: Roads, Bridge
Status: Design / Construction
Type: Substantial Alteration of Existing Facility
Description: $455 million next phase of work rebuilding Highway 520 on the west side of Lake Washington. The work includes Construction of three eastbound lanes, a landscaped lid over the highway, new intersections, a bus station, and bike trails. Also included are new highway section road decks on fixed columns over Lake Washington, west of the floating bridge that was reconstructed earlier in the decade.
Delivery Method as described in the country where it's located: Design Build
Is the project still active: Yes
Comments: WA DOT accepted a low bid from Graham Contracting that is $30 million more than the high end of the engineer's estimate of between $375 and $425 million.

Project Locations

Address: WA-520
City: Seattle
State: Washington
Country: United States of America

Souces of Project Support (Non-monetary)

Checkbox Checked Access to Land
Checkbox Checked Environmental Clearance

Souces of Project Support (Monetary)

Checkbox Checked

From Public (Government) Sources to Producers: Low design-build bid was $455 million. This phase of the reconstruction of Highway 520 is part of the $4.6 billion corridor rebuild project previously approved by the state.

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Checkbox Checked

Direct Cash Support

Project Delivery & Finance Method

Project Delivery:
Design Build (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? No

Procurement Approach

Project Component
Qualifications
Based Selection
Request for
Qualifications
Request for
Proposals
Invitation
for Bids
Unsolicited
Proposals
Design and Build Together
X
X
Project Component
Yes
No
Is Negotiation of the Price Permitted After Selection of the Winner?
X
Is Negotiation of the Scope of Services Permitted After Selection of the Winner?
X

Term for Key Components & Forms of Contract

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

Project Value (If and As Known)

Date of Estimated Project Value: October 25, 2018
Project Value
Hard Cost
Hard & Soft Costs
Design
$10-25 Million US
(none)
Construction
$250 Million - 1 Billion US
(none)
Total
$200-500 Million US
(none)

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