US Bridges

Buck Bridge RD over Teton River

Good

Chouteau County, Montana · 5M N Carter · Structure no. S00564004+08181

Built
1981
44 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
234 ft
2 main spans
Daily traffic
99
2023 count
Owner
County
County Highway Agency

About this bridge

Buck Bridge RD over Teton River is a prestressed concrete stringer/multi-beam or girder carrying Buck Bridge RD over Teton River in Chouteau County, Montana. It was built in 1981, so it is 44 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 99 vehicles a day, roughly 12% of them trucks, projected to reach 104 by 2043. The structure is 234 ft (71.2 m) long and 34 ft wide. If it were closed, the detour would be 47.8 mi (77 km).

CarriesBuck Bridge RD
CrossesTeton River
Location5M N Carter
RouteCounty Highway 564
StateMontana
Coordinates47.85594, -110.96281
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61 US tons
Inventory rating26 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length234 ft (71.2 m)
Longest span116 ft (35.4 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (2023)
Projected traffic104 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed47.8 mi (77 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 Buck Bridge RD over Teton River built?

It was built in 1981, making it 44 years old in 2025.

What condition is Buck Bridge RD over Teton River 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 May 2023.

How much traffic does Buck Bridge RD over Teton River carry?

About 99 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Buck Bridge RD over Teton River?

The structure is 234 ft (71.2 m) long with a longest span of 116 ft (35.4 m) and a deck 34 ft wide.

Who owns Buck Bridge RD over Teton River?

It is owned by the County Highway Agency.