US Bridges

County Road 131 over Usbr Main Canal 072

Fair

Richland County, Montana · 4M SW Fairview · Structure no. L42223000+07001

Built
2000
25 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

County Road 131 over Usbr Main Canal 072 is a prestressed concrete tee beam carrying County Road 131 over Usbr Main Canal 072 in Richland County, Montana. It was built in 2000, so it is 25 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 45 ft (13.7 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCounty Road 131
CrossesUsbr Main Canal 072
Location4M SW Fairview
RouteCounty Highway 42223
StateMontana
Coordinates47.81022, -104.10144
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating39.7 US tons
Inventory rating20 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span45 ft (13.7 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 131 over Usbr Main Canal 072 built?

It was built in 2000, making it 25 years old in 2025.

What condition is County Road 131 over Usbr Main Canal 072 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does County Road 131 over Usbr Main Canal 072 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is County Road 131 over Usbr Main Canal 072?

The structure is 45 ft (13.7 m) long with a longest span of 45 ft (13.7 m) and a deck 24 ft wide.

Who owns County Road 131 over Usbr Main Canal 072?

It is owned by the County Highway Agency.