US Bridges

County Road 213 over Sun River Slope CANAL071

Good

Teton County, Montana · 3M S Pishkun Reservoir · Structure no. L50049008+08001

Built
2016
9 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
96 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

County Road 213 over Sun River Slope CANAL071 is a prestressed concrete tee beam carrying County Road 213 over Sun River Slope CANAL071 in Teton County, Montana. It was built in 2016, so it is 9 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 96 ft (29.4 m) long and 16 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesCounty Road 213
CrossesSun River Slope CANAL071
Location3M S Pishkun Reservoir
RouteCounty Highway 50213
StateMontana
Coordinates47.64643, -112.45361
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating51 US tons
Inventory rating35.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length96 ft (29.4 m)
Longest span95 ft (29 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 213 over Sun River Slope CANAL071 built?

It was built in 2016, making it 9 years old in 2025.

What condition is County Road 213 over Sun River Slope CANAL071 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does County Road 213 over Sun River Slope CANAL071 carry?

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

How long is County Road 213 over Sun River Slope CANAL071?

The structure is 96 ft (29.4 m) long with a longest span of 95 ft (29 m) and a deck 16 ft wide.

Who owns County Road 213 over Sun River Slope CANAL071?

It is owned by the County Highway Agency.