Gilbert Street Bridge Replacement

Description of Work:

This project generally includes the removal and replacement of the existing four-lane concrete bridge with a new continuous concrete slab bridge over Ralston Creek, designed to meet local and state guidelines for traffic and pedestrians, six-foot sidewalks on both sides, and aesthetic improvements to enhance the neighborhood and views of the creek. Streambank stabilization will occur upstream and downstream of the new bridge with the addition of fabric formed concrete revetment and Class E revetment. Storm sewer will also be upsized from 15” to 30” diameter RCP pipe to provide additional capacity from Court Street to Ralston Creek where localized flooding during heavy rainstorms has been reported. Water main improvements will occur immediately north of the bridge to prepare for a future project. In addition, the project will include the undergrounding of overhead utilities within the project corridor.

Project Schedule Information:

Late Start Date: May 1, 2023

Working Days: 170

DBE Goal: 4.0%

Engineer's Estimate:

$2,900,000

Bid Deadline:

10:00 a.m. CST on Tuesday March 21, 2023

Submit Bids To:

City Clerk's Office
City Hall
410 E Washington Street
Iowa City, IA 52240

Obtain Plans From:

This project is being bid through the Iowa Department of Transportation. The Iowa DOT uses www.bidx.com as the official depository for bid submittal. Unless otherwise specified, bidders shall submit an electronic proposal with digital signature using the bidding software furnished by the Iowa DOT and electronic bid submittal procedures of the Iowa DOT. A listing of projects open for bids and details for each project will be available to potential bidders and suppliers three weeks prior to the letting date at www.bidx.com/is/main or www.iowadot.gov or by calling the Office of Contracts at 515-239-1414.

Pre-Bid Meeting:

None