US Bridges

LN Cnty RD 140 over Salt River

GoodPosted for load

Lincoln County, Wyoming · 1.5 Miles West of Smoot · Structure no. LWL

Built
2006
19 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
702
2024 count
Owner
County
County Highway Agency

About this bridge

LN Cnty RD 140 over Salt River is a steel stringer/multi-beam or girder carrying LN Cnty RD 140 over Salt River in Lincoln County, Wyoming. It was built in 2006, so it is 19 years old, younger 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 702 vehicles a day, roughly 22% of them trucks, projected to reach 983 by 2043. The structure is 31 ft (9.4 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLN Cnty RD 140
CrossesSalt River
Location1.5 Miles West of Smoot
RouteCounty Highway 140
StateWyoming
Coordinates42.62038, -110.93995
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than 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 rating94 US tons
Inventory rating56 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic702 (2024)
Projected traffic983 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$38,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LN Cnty RD 140 over Salt River built?

It was built in 2006, making it 19 years old in 2025.

What condition is LN Cnty RD 140 over Salt River 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 2023.

How much traffic does LN Cnty RD 140 over Salt River carry?

About 702 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is LN Cnty RD 140 over Salt River?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 26 ft wide.

Who owns LN Cnty RD 140 over Salt River?

It is owned by the County Highway Agency.