US Bridges

NFSR 443 over South Spring Creek

GoodPosted for load

Carbon County, Wyoming · 12.8 MI NW of SH 70 · Structure no. 020602000001237

Built
1976
49 years old
Condition
Good
inspected June 2024
Type
Slab
Wood or Timber
Length
24 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

NFSR 443 over South Spring Creek is a wood or timber slab carrying NFSR 443 over South Spring Creek in Carbon County, Wyoming. It was built in 1976, so it is 49 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 24 ft (7.4 m) long and 18 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesNFSR 443
CrossesSouth Spring Creek
Location12.8 MI NW of SH 70
RouteFederal Lands Road 443
StateWyoming
Coordinates41.223, -107.01771
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 protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating36.8 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span23 ft (7 m)
Deck width18 ft (5.6 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 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 443 over South Spring Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is NFSR 443 over South Spring 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 June 2024.

How much traffic does NFSR 443 over South Spring Creek carry?

About 50 vehicles per day (latest count).

How long is NFSR 443 over South Spring Creek?

The structure is 24 ft (7.4 m) long with a longest span of 23 ft (7 m) and a deck 18 ft wide.

Who owns NFSR 443 over South Spring Creek?

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