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Currently Advertised Major Highways Projects
(Typically $1M+) – Electronic Bidding Available
Major Highways projects & projects scheduled in the Idaho Transportation Investment Program (ITIP), with the exception of the SIA projects. Contractors may bid on these projects electronically through Bid Express, or by submitting a Sealed Hard Copy Bid before the bid opening date & time. Sealed Hard Copy Bids must use one of these three options:– at the office of the IDAHO TRANSPORTATION DEPARTMENT – 11331 WEST CHINDEN BLVD. BLDG #8, BOISE, IDAHO 83714 bid box slot #4 located in lobby ATTN: ADVERTISEMENT AND AWARD, with the Key No. and Contractor name on outside of envelope marked ‘Bid Enclosed’.
– USPS – IDAHO TRANSPORTATION DEPARTMENT, PO Box 40, BOISE, IDAHO 83707-0040 ATTN: ADVERTISEMENT AND AWARD. On the Sealed envelope inside, please include the Key No., Contractor name, and ‘Bid Enclosed’.
– FedEx/UPS – IDAHO TRANSPORTATION DEPARTMENT, 3311 W. STATE STREET, BOISE, ID 83703 ATTN: ADVERTISEMENT AND AWARD. On the Sealed envelope inside, please include the Key No., Contractor name, and ‘Bid Enclosed’.
| Bid Opening | Key Number | Project | Funding | District | Reference Files |
|---|---|---|---|---|---|
| ***September 16, 2026*** | **2026 Buy America** | **2026 BUY AMERICA REQUIREMENTS PRESENTATION** | |||
| October 06, 2026 | 22795 | Call 1: FY27 D1 BRIDGE REPAIRS | Federal | 1 | |
| October 06, 2026 | 24998 | Call 2: FY27 D2 PAVEMENT PRESERVATION | Federal | 2 | |
| October 06, 2026 | 24515 | Call 3: SH-32, OVERLAY MP 0 TO MP 28.4, DRUMMOND | Federal | 6 | |
| October 06, 2026 | 22235 | Call 4: US-20, FY27a D6 BRIDGE REPAIR | Federal | 6 |
Currently Advertised SIA/IRP Highways Projects
(Typically $50K-$5M) – Hardcopy Bidding ONLY
SIA projects are maintenance projects in the ITIP. IRP projects are maintenance & other miscellaneous projects that are not in the ITIP. Electronic bidding is not available for these projects. Sealed Hard Copy Bids will only be received, before the bid opening date & time, by one of these three options:– at the office of the IDAHO TRANSPORTATION DEPARTMENT – 11331 WEST CHINDEN BLVD. BLDG #8, BOISE, IDAHO 83714 bid box slot #4 located in lobby ATTN: ADVERTISEMENT AND AWARD, with the Key No. and Contractor name on outside of envelope marked ‘Bid Enclosed’.
– USPS – IDAHO TRANSPORTATION DEPARTMENT, PO Box 40, BOISE, IDAHO 83707-0040 ATTN: ADVERTISEMENT AND AWARD. On the Sealed envelope inside, please include the Key No., Contractor name, and ‘Bid Enclosed’.
– FedEx/UPS – IDAHO TRANSPORTATION DEPARTMENT, 3311 W. STATE STREET, BOISE, ID 83703 ATTN: ADVERTISEMENT AND AWARD. On the Sealed envelope inside, please include the Key No., Contractor name, and ‘Bid Enclosed’.
| Bid Opening | Key Number | Project | Funding | Type | District | Reference Files |
|---|---|---|---|---|---|---|
| September 22, 2026 | 24499 | Call 1: I-15 & SH-22, D6 FY26 MILL & INLAY | SIA | State | 6 | |
| September 22, 2026 | 23719q | Call 2: D3 ON-CALL FENCE REPAIRS | SIA | State | 3 | |
| September 29, 2026 | 25127 | Call 1: BONNER COUNTY SIGNAL UPGRADE | SIA | State | 1 |