US Bridges

Squaw Creek RD over Pryor Creek 004

Fair

Yellowstone County, Montana · 2M SE Huntley · Structure no. L56005000+01001

Built
1978
47 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Prestressed Concrete
Length
97 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Squaw Creek RD over Pryor Creek 004 is a prestressed concrete tee beam carrying Squaw Creek RD over Pryor Creek 004 in Yellowstone County, Montana. It was built in 1978, so it is 47 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 97 ft (29.6 m) long and 26 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesSquaw Creek RD
CrossesPryor Creek 004
Location2M SE Huntley
RouteCounty Highway 56005
StateMontana
Coordinates45.87068, -108.29857
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating23.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span94 ft (28.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.2 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 closed19.9 mi (32 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 Squaw Creek RD over Pryor Creek 004 built?

It was built in 1978, making it 47 years old in 2025.

What condition is Squaw Creek RD over Pryor Creek 004 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 May 2023.

How much traffic does Squaw Creek RD over Pryor Creek 004 carry?

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

How long is Squaw Creek RD over Pryor Creek 004?

The structure is 97 ft (29.6 m) long with a longest span of 94 ft (28.7 m) and a deck 26 ft wide.

Who owns Squaw Creek RD over Pryor Creek 004?

It is owned by the County Highway Agency.