US Bridges

E Pryor RD over Clarks Fk Yellowstne 056

Fair

Carbon County, Montana · E Edgar · Structure no. L05301001+00001

Built
1980
45 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
325 ft
4 main spans
Daily traffic
413
2023 count
Owner
County
County Highway Agency

About this bridge

E Pryor RD over Clarks Fk Yellowstne 056 is a prestressed concrete stringer/multi-beam or girder carrying E Pryor RD over Clarks Fk Yellowstne 056 in Carbon County, Montana. It was built in 1980, so it is 45 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 5 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 413 vehicles a day, roughly 3% of them trucks, projected to reach 436 by 2043. The structure is 325 ft (99 m) long and 26 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesE Pryor RD
CrossesClarks Fk Yellowstne 056
LocationE Edgar
RouteCounty Highway 5301
CountyCarbon County
StateMontana
Coordinates45.46453, -108.84122
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length325 ft (99 m)
Longest span81 ft (24.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic413 (2023)
Projected traffic436 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 E Pryor RD over Clarks Fk Yellowstne 056 built?

It was built in 1980, making it 45 years old in 2025.

What condition is E Pryor RD over Clarks Fk Yellowstne 056 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 August 2023.

How much traffic does E Pryor RD over Clarks Fk Yellowstne 056 carry?

About 413 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is E Pryor RD over Clarks Fk Yellowstne 056?

The structure is 325 ft (99 m) long with a longest span of 81 ft (24.7 m) and a deck 26 ft wide.

Who owns E Pryor RD over Clarks Fk Yellowstne 056?

It is owned by the County Highway Agency.