Plans and Specifications Summary

This document consists of revised construction plans and specifications for the Ada County Highway District (ACHD) roadway reconstruction and bridge replacement project on Allumbaugh Street from Franklin Road to Douglas Street in Boise, Idaho, under ITB CT227-04. The project scope encompasses two primary schedules: Schedule 1 includes roadway reconstruction with 63 line items covering clearing, excavation, storm drain installation, curb and gutter, sidewalk and driveway approaches, and pavement markings; Schedule 2 includes bridge replacement over Ridenbaugh Canal with 23 line items addressing removal, structural excavation, concrete work, prestressed slabs, and reinforcement steel. The project also incorporates pedestrian and bike facilities and railroad crossing preemption upgrades requiring coordination with Union Pacific Railroad (UPRR). Bids were due October 14, 2026 at 3:00 p.m., with questions due by October 9, 2026. The Notice to Proceed is anticipated on or about December 1, 2026, with irrigation and bridge work completion required by March 15, 2027 and all remaining work by June 30, 2027. Contractor entry to UPRR property is restricted to work authorized by Temporary Encroachment Easement and contingent upon execution of UPRR's Construction/Maintenance Agreement, anticipated in April 2027.

Bidders must hold a current Idaho Public Works Contractor License (Type 1, 2, or 4) and provide workforce certification that 95% of employees are Idaho residents, or 90% if fifty or fewer employees are hired. Bid security of 10% of the total proposal and performance and labor and material payment bonds each equal to the full contract price are required. ACHD will supply specified signal and electrical equipment valued at approximately $102,968. Liquidated damages of $2,000 per calendar day apply for delays. Required insurance includes Workers' Compensation with Employer's Liability of $1,000,000, Commercial General Liability of $2,000,000, and Automobile Liability of $2,000,000. A two-year warranty on all completed work is required, and utilities require approximately 60 working days from Notice to Proceed for relocations and adjustments.