US Bridges

LN Cnty RD 150 over Salt River

Fair

Lincoln County, Wyoming · 1 Mile SW of Smoot · Structure no. LWG

Built
2006
19 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
284
2024 count
Owner
County
County Highway Agency

About this bridge

LN Cnty RD 150 over Salt River is a steel stringer/multi-beam or girder carrying LN Cnty RD 150 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 fair condition with a lowest component rating of 5 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 284 vehicles a day, roughly 3% of them trucks, projected to reach 398 by 2043. The structure is 33 ft (10 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLN Cnty RD 150
CrossesSalt River
Location1 Mile SW of Smoot
RouteCounty Highway 150
StateWyoming
Coordinates42.61587, -110.93342
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating79 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length33 ft (10 m)
Longest span29 ft (8.9 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic284 (2024)
Projected traffic398 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$37,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LN Cnty RD 150 over Salt River built?

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

What condition is LN Cnty RD 150 over Salt 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 July 2024.

How much traffic does LN Cnty RD 150 over Salt River carry?

About 284 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is LN Cnty RD 150 over Salt River?

The structure is 33 ft (10 m) long with a longest span of 29 ft (8.9 m) and a deck 26 ft wide.

Who owns LN Cnty RD 150 over Salt River?

It is owned by the County Highway Agency.