US Bridges

RD 2345 over Pl. Valley-Fisher River

Fair

Lincoln County, Montana · So. Pleasant Valley · Structure no. 011406000000048

Built
1982
43 years old
Condition
Fair
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
40
Owner
Federal
U.S. Forest Service

About this bridge

RD 2345 over Pl. Valley-Fisher River is a prestressed concrete stringer/multi-beam or girder carrying RD 2345 over Pl. Valley-Fisher River in Lincoln County, Montana. It was built in 1982, so it is 43 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 40 vehicles a day, projected to reach 60 by 2045. The structure is 55 ft (16.8 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesRD 2345
CrossesPl. Valley-Fisher River
LocationSo. Pleasant Valley
RouteFederal Lands Road 2345
StateMontana
Coordinates48.16648, -115.06952
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2022
Inspection intervalevery 48 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 rating53.6 US tons
Inventory rating47.2 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadOther
Structure length55 ft (16.8 m)
Longest span54 ft (16.4 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (—)
Projected traffic60 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byPrivate (other than railroad)
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 2345 over Pl. Valley-Fisher River built?

It was built in 1982, making it 43 years old in 2025.

What condition is RD 2345 over Pl. Valley-Fisher River 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 2022.

How much traffic does RD 2345 over Pl. Valley-Fisher River carry?

About 40 vehicles per day (latest count).

How long is RD 2345 over Pl. Valley-Fisher River?

The structure is 55 ft (16.8 m) long with a longest span of 54 ft (16.4 m) and a deck 16 ft wide.

Who owns RD 2345 over Pl. Valley-Fisher River?

It is owned by the U.S. Forest Service and maintained by the Private (other than railroad).