US Bridges

NFSR 101 over N. Fork Rock Creek

Good

Carbon County, Wyoming · 13.25 Mi. NW of SH 130 · Structure no. 020605000001223

Built
1957
68 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
34 ft
1 main span
Daily traffic
32
2002 count
Owner
Federal
U.S. Forest Service

About this bridge

NFSR 101 over N. Fork Rock Creek is a wood or timber stringer/multi-beam or girder carrying NFSR 101 over N. Fork Rock Creek in Carbon County, Wyoming. It was built in 1957, so it is 68 years old, older than the Wyoming average of 48.4 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 32 vehicles a day, projected to reach 48 by 2045. The structure is 34 ft (10.3 m) long and 15 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesNFSR 101
CrossesN. Fork Rock Creek
Location13.25 Mi. NW of SH 130
RouteFederal Lands Road 101
StateWyoming
Coordinates41.45931, -106.22978
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 inspectionAugust 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating31.7 US tons
Inventory rating24.7 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length34 ft (10.3 m)
Longest span31 ft (9.4 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32 (2002)
Projected traffic48 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NFSR 101 over N. Fork Rock Creek built?

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

What condition is NFSR 101 over N. Fork Rock Creek 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 August 2024.

How much traffic does NFSR 101 over N. Fork Rock Creek carry?

About 32 vehicles per day (2002 count).

How long is NFSR 101 over N. Fork Rock Creek?

The structure is 34 ft (10.3 m) long with a longest span of 31 ft (9.4 m) and a deck 15 ft wide.

Who owns NFSR 101 over N. Fork Rock Creek?

It is owned by the U.S. Forest Service.