US Bridges

County Road 350 over Usbr Main Canal 025

Fair

Richland County, Montana · 2M N Sidney · Structure no. L42202001+01001

Built
2003
22 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
341
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 350 over Usbr Main Canal 025 is a prestressed concrete tee beam carrying County Road 350 over Usbr Main Canal 025 in Richland County, Montana. It was built in 2003, so it is 22 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 6 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 341 vehicles a day, roughly 4% of them trucks, projected to reach 401 by 2043. The structure is 90 ft (27.4 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Road 350
CrossesUsbr Main Canal 025
Location2M N Sidney
RouteCounty Highway 42202
CountyRichland County
StateMontana
Coordinates47.7406, -104.16334
Functional classRural Minor Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating31.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length90 ft (27.4 m)
Longest span86 ft (26.1 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic341 (2023)
Projected traffic401 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 350 over Usbr Main Canal 025 built?

It was built in 2003, making it 22 years old in 2025.

What condition is County Road 350 over Usbr Main Canal 025 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 350 over Usbr Main Canal 025 carry?

About 341 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is County Road 350 over Usbr Main Canal 025?

The structure is 90 ft (27.4 m) long with a longest span of 86 ft (26.1 m) and a deck 36 ft wide.

Who owns County Road 350 over Usbr Main Canal 025?

It is owned by the County Highway Agency.