US Bridges

Poplar River RD over Poplar River 013

Fair

Roosevelt County, Montana · NE Edge Poplar · Structure no. L43202000+04001

Built
1957
68 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
3 main spans
Daily traffic
563
2023 count
Owner
County
County Highway Agency

About this bridge

Poplar River RD over Poplar River 013 is a steel continuous stringer/multi-beam or girder carrying Poplar River RD over Poplar River 013 in Roosevelt County, Montana. It was built in 1957, so it is 68 years old, older 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 563 vehicles a day, roughly 3% of them trucks, projected to reach 594 by 2043. The structure is 180 ft (54.9 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesPoplar River RD
CrossesPoplar River 013
LocationNE Edge Poplar
RouteCounty Highway 43102
CountyRoosevelt County
StateMontana
Coordinates48.11787, -105.19269
Functional classRural Minor 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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length180 ft (54.9 m)
Longest span68 ft (20.7 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic563 (2023)
Projected traffic594 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Poplar River RD over Poplar River 013 built?

It was built in 1957, making it 68 years old in 2025.

What condition is Poplar River RD over Poplar River 013 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 2024.

How much traffic does Poplar River RD over Poplar River 013 carry?

About 563 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Poplar River RD over Poplar River 013?

The structure is 180 ft (54.9 m) long with a longest span of 68 ft (20.7 m) and a deck 29 ft wide.

Who owns Poplar River RD over Poplar River 013?

It is owned by the County Highway Agency.