Bid awarded, construction to begin on I-90 undercrossing

March 23, 2010

By Warren Kagarise

Construction should start by late April on the long-planned Interstate 90 Undercrossing, a north-south connector meant to alleviate traffic on Front Street and state Route 900.

City Public Works Engineering Director Bob Brock said work should last about five months. The roadway should open to vehicles by the end of the year.

City Council members awarded a $1.46 million construction contract last week to complete the roadway. The council passed the measure in a unanimous vote without discussion. The particulars associated with undercrossing construction had been addressed in earlier meetings, including meetings late last year where officials discussed trees and wetlands damaged by construction.

A man walks on the East Lake Sammamish Trail at the Interstate 90 overpass, where the long-planned Interstate 90 north-south undercrossing connector will be. By Greg Farrar

The undercrossing will connect Northwest Gilman Boulevard to Southeast 56th Street via a two-lane roadway built from the traffic signal at the post office.

The city counts on the undercrossing to remove about 2,000 to 4,000 cars from Northwest Gilman Boulevard and 3,000 to 6,000 cars from Front Street North each day. Gilman Boulevard handles 29,000 cars per day; Front Street handles 49,000, city figures show.

Crews from MidMountain Contractors — a Kirkland construction company and the lowest bidder — will build the roadway and install a 12-inch water main. The project includes curb and gutter work, installation of sidewalks and traffic signals, and landscaping.

Staffers opened bids from contractors last month, after the city received 13 bids ranging from $1.4 million to $2.1 million.

King County issued a permit to the city to allow Issaquah to use a portion of a county trail for the project. The measure requires the city to create parking spaces along the existing road from Northwest Gilman Boulevard to the former Zetec complex. The road will connect to the undercrossing.

Warren Kagarise: 392-6434, ext. 234, or wkagarise@isspress.com. Comment at www.issaquahpress.com.

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One Response to “Bid awarded, construction to begin on I-90 undercrossing”

  1. Finally, an easier way to get around in Issaquah is coming! « Kellie Batali's Real Estate Blog on March 28th, 2010 9:41 am

    [...] the whole Sammamish trail system.  For the entire article at the Issaquah Press, go to this link: http://www.issaquahpress.com/2010/03/23/bid-awarded-construction-to-begin-on-i-90-undercrossing/ My Social Networking [...]

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