US Bridges

Buffalo Creek RD over Buffalo Creek 132

Fair

Yellowstone County, Montana · 5M NW Custer · Structure no. L56908004+08001

Built
2012
13 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Buffalo Creek RD over Buffalo Creek 132 is a prestressed concrete tee beam carrying Buffalo Creek RD over Buffalo Creek 132 in Yellowstone County, Montana. It was built in 2012, so it is 13 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 64 ft (19.6 m) long and 30 ft wide. If it were closed, the detour would be 54.1 mi (87 km).

CarriesBuffalo Creek RD
CrossesBuffalo Creek 132
Location5M NW Custer
RouteCounty Highway 56908
StateMontana
Coordinates46.13379, -107.63069
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating44 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length64 ft (19.6 m)
Longest span60 ft (18.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.4 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 closed54.1 mi (87 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 Buffalo Creek RD over Buffalo Creek 132 built?

It was built in 2012, making it 13 years old in 2025.

What condition is Buffalo Creek RD over Buffalo Creek 132 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 June 2024.

How much traffic does Buffalo Creek RD over Buffalo Creek 132 carry?

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

How long is Buffalo Creek RD over Buffalo Creek 132?

The structure is 64 ft (19.6 m) long with a longest span of 60 ft (18.3 m) and a deck 30 ft wide.

Who owns Buffalo Creek RD over Buffalo Creek 132?

It is owned by the County Highway Agency.