US Bridges

Riverview LN over Clarks Fk Yellowstne 007

Fair

Carbon County, Montana · 2M S Belfry · Structure no. L05411000+02001

Built
1981
44 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
182 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Riverview LN over Clarks Fk Yellowstne 007 is a steel continuous stringer/multi-beam or girder carrying Riverview LN over Clarks Fk Yellowstne 007 in Carbon 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 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 182 ft (55.5 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesRiverview LN
CrossesClarks Fk Yellowstne 007
Location2M S Belfry
RouteCounty Highway 5327
StateMontana
Coordinates45.11318, -109.01274
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length182 ft (55.5 m)
Longest span92 ft (28 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.4 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 closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$293,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Riverview LN over Clarks Fk Yellowstne 007 built?

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

What condition is Riverview LN over Clarks Fk Yellowstne 007 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 2024.

How much traffic does Riverview LN over Clarks Fk Yellowstne 007 carry?

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

How long is Riverview LN over Clarks Fk Yellowstne 007?

The structure is 182 ft (55.5 m) long with a longest span of 92 ft (28 m) and a deck 18 ft wide.

Who owns Riverview LN over Clarks Fk Yellowstne 007?

It is owned by the County Highway Agency.