October 25, 2024
The Montana Department of Transportation (MDT) and Frontier West have reopened the Cyr Bridge on Old Highway 10 west of Alberton in Mineral County! Crews will still be present wrapping up minor tasks for the next few weeks, but the bridge is not expected to be closed for this work.
Construction on this project began in Spring 2024 and required Cyr Bridge to be closed for several months while repairs were completed.
Improvements completed include repairing and painting portions of the steel superstructure beneath the bridge deck (driving surface), replacing the bridge railing, applying a crack seal to the bridge deck, resurfacing the roadway on each end of the bridge, and repairing deteriorated concrete in the bridge deck, piers, and retaining walls.
Other improvements made as part of this project include paving the vehicle parking area on the east side of the bridge and the installation of a historical marker.
MDT and Frontier West thank you for your patience during construction.
October 22, 2024
The Montana Department of Transportation (MDT) and Frontier West are continuing to make progress toward reopening the Cyr Bridge. The bridge is expected to reopen by the end of October, weather and other factors permitting.
The bridge remains closed to all traffic including pedestrians and bicycles. Please do not attempt to cross the bridge even if it looks passable as it may be unsafe for you and the contractor. MDT will reopen the bridge as soon as it is safe and doesn't disrupt the contractor's work and schedule.
Crews have recently completed adding the new guardrail, crack sealing the bridge deck surface, and installing utilities across the bridge.
Construction is expected to be fully completed this fall.
What to expect during construction:
- The Cyr Bridge is closed to vehicle, bicycle and pedestrian traffic.
- The Clark Fork River boat ramp located near the Cyr Bridge is open.
- For access to and from the boat ramp and the west side of the river, motorists will need to use the Fish Creek Interchange (Exit 66).
- For access to and from the east side of the river, westbound I-90 motorists will need to use the Cyr Interchange (Exit 70). Eastbound I-90 motorists will need to use the Alberton Interchange (Exit 75), enter I-90 traveling westbound, and exit at the Cyr Interchange.
September 23, 2024
The Montana Department of Transportation (MDT) and Frontier West's rehabilitation work on the Old Highway 10 Cyr Bridge continues on schedule. Crews have completed demolition on the revised bridge rail and have begun placing concrete in the new bridge rail forms. Once strength on the concrete has been achieved, they will begin erecting the new bridge rail. Crews are repairing worn concrete on the deck surface (class A repair) and will be placing new expansion joints through the end of the month.
The project is on track to be completed around the end of October, weather and other unforeseen factors permitting. The bridge will remain closed to all traffic including pedestrians and bicycles. Please do not attempt to cross the bridge even if it looks passable as it may be unsafe for you and the contractor. MDT will reopen the bridge as soon as it is safe and doesn't disrupt the contractor's work and schedule.
August 27, 2024
The Montana Department of Transportation (MDT) and Frontier West's rehabilitation work on the Old Highway 10 Cyr Bridge continues on schedule. Crews have removed the old concrete guardrail and are prepping the bridge deck (driving surface) to install new steel guardrail and handrail. Crews are also making repairs to concrete on the bridge deck.
The project is on track to be completed around the end of October, weather and other unforeseen factors permitting. The bridge will remain closed to all traffic including pedestrians and bicycles. Please do not attempt to cross the bridge even if it looks passable as it may be unsafe for you and the contractor. MDT will reopen the bridge as soon as it is safe and doesn't disrupt the contractor's work and schedule.
LABOR DAY: Crews will pause construction activities for the Labor Day weekend by 3 p.m. on Friday, August 30 and will resume on Tuesday, September 3.
July 24, 2024
The river under the bridge is still open for boating and floating as construction on the bridge continues to move forward. The Montana Department of Transportation (MDT) would like to remind river users not to linger beneath the bridge as the contractor is working overhead. Please pay attention to signage that may direct traffic to one side of the river at certain times.
Work done in the last month:
- Removed the old concrete rail and preparing to install new rail.
- Removed the old curb and formed new concrete curbing to attach the new steel guardrail and handrail.
- Painted steel floor beams to slow corrosion.
- Replaced worn and damaged rivets on the steel superstructure.
- Completed paving on Daigle Lane.
The project is on track to be completed around the end of October, weather and other unforeseen factors permitting. The bridge will remain closed to all traffic including pedestrians and bicycles. Please do not attempt to cross the bridge even if it looks passable as it may be unsafe for you and the contractor. MDT will reopen the bridge as soon as it is safe and doesn't disrupt the contractor's work and schedule.
June 6, 2024
Construction on the Cyr Bridge on Old Highway 10 began in April 2024 and is expected to be completed in the fall. Here's the work that has been completed so far:
- Removed and replaced the concrete in the east end retaining wall.
- Sealed cracks in the east end retaining wall.
- Removed concrete in the piers and pier caps.
- Reinforced the concrete in the piers with new rebar.
- Set steel casings on the pier caps.
What's next?
As weather permits over the next few months, crews will begin concrete repair work on the steel structure, replace worn or damaged rivets, and repair the bridge deck and paint floor beams.
What to expect during construction:
- The Cyr Bridge is closed to vehicle and pedestrian traffic.
- The Clark Fork River Boat Ramp located near the Cyr Bridge will remain open.
- A detour route is expected to be in place throughout construction.
- For access to and from the boat ramp and the west side of the river, motorists will need to use the Fish Creek Interchange (Exit 66).
- For access to and from the east side of the river, westbound Interstate 90 (I-90) motorists will need to use the Cyr Interchange (Exit 70). Eastbound I-90 motorists will need to use the Alberton Interchange (Exit 75), enter I-90 traveling westbound, and exit at the Cyr Interchange.
- Boating and floating beneath the bridge will remain open, however signage may direct traffic to one side of the river at certain times. Do not linger beneath the bridge.
April 3, 2024
The Montana Department of Transportation (MDT) and Frontier West are rehabilitating the Cyr Bridge located on Old Highway 10 west of Alberton. Construction is anticipated to begin in spring 2024 and be completed in the fall.
Planned improvements include:
- Repairing deteriorated concrete in the bridge deck (driving surface), piers, and retaining walls.
- Repairing and painting a portion of the steel superstructure.
- Replacing the bridge railing.
- Applying a deck crack seal to the bridge's driving surface.
- Resurfacing the roadway on each end of the bridge.
- Paving the vehicle parking area on the east side of the bridge.
- Installing a historical marker.
The bridge is expected to close the week of April 1 and will reopen in the fall when construction is complete. A detour route is in place during this closure (see below detour map for more information.)
What to expect during construction:
- Starting the week of April 2, the Cyr Bridge will be closed to vehicle and pedestrian traffic.
- The Clark Fork River Boat Ramp located near the Cyr Bridge will remain open.
- A detour route is expected to be in place throughout construction.
- For access to and from the boat ramp and the west side of the river, motorists will need to use the Fish Creek Interchange (Exit 66).
- For access to and from the east side of the river, westbound I-90 motorists will need to use the Cyr Interchange (Exit 70). Eastbound I-90 motorists will need to use the Alberton Interchange (Exit 75), enter I-90 traveling westbound, and exit at the Cyr Interchange.
- Boating and floating beneath the bridge will remain open, however signage may direct traffic to one side of the river at certain times. Do not linger beneath the bridge.
March 19, 2024
The Montana Department of Transportation (MDT) and Frontier West anticipate construction activities that will impact traffic on the bridge to begin the week of April 2, pending weather.
Crews will be working beneath and around the bridge in late March.
What to expect during construction
- Starting the week of April 2, the Cyr Bridge will be closed to vehicle and pedestrian traffic.
- The Clark Fork River boat ramp located near the Cyr Bridge will remain open.
- A detour route is expected to be in place throughout construction.
- For access to and from the boat ramp and the west side of the river, motorists will need to use the Fish Creek Interchange (Exit 66).
- For access to and from the east side of the river, westbound I-90 motorists will need to use the Cyr Interchange (Exit 70). Eastbound I-90 motorists will need to use the Alberton Interchange (Exit 75), enter I-90 traveling westbound, and exit at the Cyr Interchange.
- Boating and floating beneath the bridge will remain open, however signage may direct traffic to one side of the river at certain times. Do not linger beneath the bridge.