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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 |
|---|---|---|---|---|---|
| May 12, 2026 | 21812-24594 | Call 1: CITY OF GOODING & SH-26 TO 10TH AVE. SIDEWALK INSTALL | Federal | 4 | Reference Files |
| May 12, 2026 | 25241 | Call 2: SH-14, MILL & INLAY SURFACE IMPROVEMENT, D2 | State | 2 | |
| May 19, 2026 | 24339 | Call 1: STC-1888, FERRY BUTTE BRIDGE REHAB | Federal | LHTAC | Reference Files |
| June 02, 2026 | 23889 | Call 1: STC-7316, 5th E (HOLMES AVE) & 49th SOUTH SIGNAL | Federal | LHTAC | Reference Files |
| June 03, 2026 | 24342 | Call 1: OLD SPIRAL HWY GUARDRAIL, PH 1 | Federal | LHTAC | Reference Files |
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 |
|---|---|---|---|---|---|---|
| May 19, 2026 | C200531 | Call 1: SH-21 AVALANCHE MONITORING DEVICE INSTALLATION | State | IRP | 3 | |
| June 02, 2026 | 24090 | Call 1: US-30 AND SH-34, D5 CONCRETE BARRIER UPGRADES | State | SIA | 5 | |
| June 02, 2026 | 25117 | Call 2: FY26 ROADSIDE SAFETY GUARDRAIL, D2 | State | SIA | 2 |