The Ada County Highway District is accepting sealed bids for a traffic signal installation project at the intersection of McMillan Road and McDermott Road in Meridian. The project aims to reduce congestion and improve pedestrian safety at a busy corridor in Ada County’s growing commercial area.
Contractors interested in the work must submit electronically sealed bids through the ACHD eProcurement portal only. The district will not accept paper or manually delivered bids. The deadline for bid submission is 3:00 p.m. on Wednesday, August 19, 2026, with a public bid opening scheduled for the same date and time via Zoom.
Project Scope and Timeline
The work involves installing a new traffic signal at the McMillan and McDermott intersection along with related roadway improvements. Contractors will widen asphalt on McMillan Road, construct pedestrian ramps, apply pavement striping and markings, and complete other associated improvements to enhance traffic flow and pedestrian connectivity.
ACHD Traffic Operations will handle the installation of the traffic signal itself and all electrical work. The project must be completed by October 28, 2026. The Notice to Proceed is expected on or about September 7, 2026, giving contractors roughly seven weeks to finish the work.
Contractors who fail to meet the completion deadline face liquidated damages of $1,000 per calendar day of delay. This financial incentive encourages timely project delivery and minimizes disruption to the Meridian area during construction.
Coordination with Utility and Municipal Partners
Contractors awarded the bid must coordinate with Can Ada and the City of Meridian regarding an active sewer project in the area. This coordination requirement ensures that traffic signal installation work does not conflict with or delay the utility improvements underway in the corridor.
Bid Requirements and Submission Details
All bids must include bid security equal to 10 percent of the total proposal amount. Bid security may be submitted as a certified check, cashier’s check, or bid bond. The expected contract bonding requirement is $310,000.
Prospective bidders with questions about the project must submit them no later than 12:00 p.m. on Friday, August 14, 2026, using only the ACHD eProcurement portal. This compressed timeline gives contractors just five days to review project specifications and seek clarification before the August 19 deadline.
ACHD reserves the right to reject all or any proposals received. The district may also delay the contract award by up to 60 calendar days after the bid date if needed for evaluation and administrative processing.
Impact on Ada County Commuters and Development
The McMillan-McDermott intersection serves as a key junction in Meridian’s expanding commercial and residential growth area. Congestion at this location has become a concern as development accelerates along the corridor. Installing a new traffic signal should improve traffic management and reduce delays during peak commute periods while enhancing pedestrian safety for workers and shoppers using nearby businesses.
This project reflects ongoing Ada County efforts to upgrade transportation infrastructure to accommodate growth. Similar initiatives, such as the planned bridge at 52nd Street to close a greenbelt gap between Garden City and Ada County, demonstrate a regional commitment to improving connectivity and reducing bottlenecks as the Treasure Valley expands.
What Comes Next
Contractors interested in bidding should visit the ACHD eProcurement portal to download full project specifications and bid documents. The portal is the exclusive channel for all bid submissions, questions, and communications related to this project.
The August 14 deadline for questions offers the final opportunity for bidders to seek clarification on project requirements. All bids must arrive electronically before 3:00 p.m. on August 19. ACHD will open bids publicly via Zoom at that time, allowing interested parties to observe the process and bid amounts announced.
For more information, contractors and members of the public may contact ACHD directly through official channels listed on the district’s website and eProcurement portal.