US Bridges

RD 763 over Wolf CR

Good

Lincoln County, Montana · .2 MI S Wolf CR JCT · Structure no. 011406000000171

Built
1978
47 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
40
Owner
Federal
U.S. Forest Service

About this bridge

RD 763 over Wolf CR is a prestressed concrete stringer/multi-beam or girder carrying RD 763 over Wolf CR in Lincoln County, Montana. It was built in 1978, so it is 47 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 40 vehicles a day, projected to reach 60 by 2045. The structure is 52 ft (15.8 m) long and 30 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesRD 763
CrossesWolf CR
Location.2 MI S Wolf CR JCT
RouteFederal Lands Road 763
StateMontana
Coordinates48.23251, -115.28669
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionJuly 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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating25.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length52 ft (15.8 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (—)
Projected traffic60 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-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 763 over Wolf CR built?

It was built in 1978, making it 47 years old in 2025.

What condition is RD 763 over Wolf CR 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 July 2024.

How much traffic does RD 763 over Wolf CR carry?

About 40 vehicles per day (latest count).

How long is RD 763 over Wolf CR?

The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns RD 763 over Wolf CR?

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