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  5. ›Eastern Avenue Widening and Signal Modification Project

City of Davenport·Iowa

Eastern Avenue Widening and Signal Modification Project

Closes 8/24/2026$800k – $1.5MInvitation for Bid
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Description

The City of Davenport is soliciting qualified contractors to bid on the Eastern Avenue Widening and Signal Modification Project located south of the Eastern Avenue and 29th Street intersection. The scope includes widening the roadway to add a dedicated left‑turn lane and a separate northbound through lane, upgrading traffic signals with new controllers, wiring, and Iteris Vantage Vector video detection, and completing all associated civil works such as concrete pavement widening, sidewalk and curb‑ramp installation, driveway apron replacement, topsoil and sod restoration, pavement markings, and erosion control. The contractor is responsible for all labor, materials, equipment, surveying, utility coordination, traffic control, site protection, and final cleanup, with a contract completion deadline of 12/18/2026. Monthly progress payments with 3 % retainage will be made, and liquidated damages of $500 per day apply for late completion. • Roadway widening and lane addition • Signal system upgrade (new signals, wiring, video detection, controllers) • Concrete pavement, sidewalks, curb ramps, driveway aprons • Utility coordination and traffic control • Required permits (COSESCO, Excavation) • Completion by 12/18/2026 with $500/day liquidated damages

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Kari Thoren

[email protected]

(563) 888-2267

Key dates

Opened
8/3/2026
Questions due
8/13/2026
Closes
8/24/2026
Projected award
9/9/2026
Duration
3 months

Last updated

Details

Type
Invitation for Bid
Industry
Construction
NAICS
237310
Solicitation №
27-14 Addendum 1

Budget estimate

$800,000 – $1,500,000

The engineer’s estimate for a single bid item is $125,000, but the full scope—roadway widening, signal system upgrade, sidewalks, curb ramps, utility coordination, traffic control, and associated permits—suggests a total contract value in the low‑to‑mid‑seven‑figure range. Assuming typical unit costs for concrete pavement widening ($150‑$200 per square foot) and signal upgrades ($50,000‑$100,000), a reasonable ballpark is between $800,000 and $1,500,000. Factors influencing the final amount include actual quantities, unforeseen utility conflicts, and any change orders for additional work.

AI estimate from the solicitation

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