US Bridges

Pryor RD over Pryor Creek 009

Good

Yellowstone County, Montana · 13M S Billings · Structure no. L56300013+00001

Built
2003
22 years old
Condition
Good
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
102 ft
1 main span
Daily traffic
765
2023 count
Owner
State
State Highway Agency

About this bridge

Pryor RD over Pryor Creek 009 is a prestressed concrete tee beam carrying Pryor RD over Pryor Creek 009 in Yellowstone 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 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 765 vehicles a day, roughly 2% of them trucks, projected to reach 899 by 2043. The structure is 102 ft (31.2 m) long and 38 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

CarriesPryor RD
CrossesPryor Creek 009
Location13M S Billings
RouteState Highway 418
StateMontana
Coordinates45.55884, -108.42337
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length102 ft (31.2 m)
Longest span102 ft (31.2 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic765 (2023)
Projected traffic899 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Pryor RD over Pryor Creek 009 built?

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

What condition is Pryor RD over Pryor Creek 009 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 December 2024.

How much traffic does Pryor RD over Pryor Creek 009 carry?

About 765 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Pryor RD over Pryor Creek 009?

The structure is 102 ft (31.2 m) long with a longest span of 102 ft (31.2 m) and a deck 38 ft wide.

Who owns Pryor RD over Pryor Creek 009?

It is owned by the State Highway Agency.