Overview
Annual bridge maintenance and repairs ensure North Idaho bridges remain in good condition to serve the traveling public year after year.
Annual Bridge Repair and Maintenance Projects
Every year, the Idaho Transportation Department carries out a bridge repair program focused on maintaining and preserving the nearly 300 bridges that support the state highway system across North Idaho. These structures range from large water crossings and interstate overpasses to pedestrian bridges and shorter-span structures such as large culverts.
Bridge repair projects can include activities such as replacing bridge joints, paving, sealing bridge decks, painting and making structural repairs to help preserve bridges and extend their service life. These repairs address the normal wear and aging that occurs over time as bridges are exposed to traffic, weather and water year-round. Some repairs also take place below the bridge deck, including work on foundations and supports exposed to water and changing conditions.
While this work takes place annually across the district, the locations and scope of repairs vary from year to year based on the condition and needs of individual structures.
2026 Bridge Repairs
This year’s annual bridge repair maintenance projects can be classified into three categories: Long duration work zones, short duration daytime work zones, and short duration nighttime work zones.
LONG DURATION WORK ZONE:
Work will be completed over several weeks or months, requiring traffic to be shifted entirely off the bridge as crews complete maintenance and repairs.
Work will be performed primarily during daylight hours and will take scheduled breaks over major summer holidays including Fourth of July and Labor Day weekends.
Drivers should expect traffic shifts, lane reductions, reduced speed limits and potential detours at on- and off-ramps through the work zones for the duration of each project. Intermittent on and off ramps near these bridges may also be affected by construction and will require drivers to take a detour. Digital message signs will be posted in advance of all closures with posted detour routes.
SHORT DURATION DAYTIME WORK ZONE:
Crews will move between numerous locations throughout the district through spring and summer as part of this year’s short-duration bridge repair program.
Work at each site is expected to take between 1 and 3 days before crews move on to the next location. Because the work is mobile in nature, drivers may see temporary traffic impacts at different locations as the season progresses.
Drivers may encounter traffic control devices, lane reductions or restrictions, reduced speed limits and/or flagging through each of these short-duration work zones.
SHORT DURATION NIGHTTIME WORK ZONE:
Night work for annual bridge repair and maintenance in 2026 is reserved for projects affecting bridges on Interstate 90 and will be active from 8 p.m. to 5 a.m.
Much like the short duration daytime projects, these will move between various locations on the interstate and last for 1 to 3 nights while crews complete their work.
Drivers should expect interstate traffic to be reduced to a single lane, with reduced speeds through the active work zone areas overnight.
ITD will begin its annual bridge repair program across North Idaho following Memorial Day weekend, with work continuing through the spring and summer across the region. The map below shows the approximate locations of these bridges set for repair and the type of work zone needed for each project. Because scheduling will depend on contractor phasing, weather and other operational needs, specific work dates are not set at individual locations. Through the summer construction season drivers should expect intermittent lane restrictions, reduced speeds and short-term traffic impacts at these various locations across the region as work progresses.
Bridge Locations
Below is a list of specific locations by work zone type and the expected timeframes for construction for the long duration bridge projects.
LONG DURATION WORK ZONES
Interstate 90
- Blue Creek Bay Bridge east of Coeur d’Alene near milepost 20
- Late May through July
- Wallace Bridge near milepost 60
- Mid-July through September
- Mullan Interchange near milepost 68
- Mid-July through October
SHORT DURATION DAYTIME WORK ZONES
State Highway 3
- St. Maries River Bridge near milepost 68
- St. Maries Railroad Bridge near milepost 72
- St. Maries Bridge near milepost 84
- Coeur d’Alene River Bridge/ Rose Lake Bridge near milepost 111
State Highway 58
- U.S. Highway 95 Interchange bridges near milepost 3
- North Fork Rock Creek Bridge near milepost 2
State Highway 5
- Plummer Creek Bridge near milepost .5
U.S. Highway 95
- Sheep Creek Bridge near milepost 378
- North Fork Rock Creek Bridge near milepost 407
Interstate 90
- 9th Street Bridge in Coeur d’Alene
- McGuire Road Bridge in Post Falls
SHORT DURATION NIGHTTIME WORK ZONES
Interstate 90
- Spokane River Bridges at the Idaho/Washington state line
- Pleasant View Interchange
- Spokane Street Interchange
Questions about this project?
Contact the District 1 Office in Coeur d’Alene by calling (208) 772-1200.