US Bridges

FR Cnty RD 345 over N Fork Little Wind River

Good

Fremont County, Wyoming · 5 MI NW of Ft Washakie · Structure no. KEL

Built
1960
65 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
89 ft
3 main spans
Daily traffic
193
2024 count
Owner
County
County Highway Agency

About this bridge

FR Cnty RD 345 over N Fork Little Wind River is a steel continuous stringer/multi-beam or girder carrying FR Cnty RD 345 over N Fork Little Wind River in Fremont County, Wyoming. It was built in 1960, so it is 65 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 193 vehicles a day, roughly 30% of them trucks, projected to reach 270 by 2043. The structure is 89 ft (27.1 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFR Cnty RD 345
CrossesN Fork Little Wind River
Location5 MI NW of Ft Washakie
RouteCounty Highway 345
StateWyoming
Coordinates43.03088, -108.95268
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment6: Equal to present minimum criteria
Operating rating55.6 US tons
Inventory rating34.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length89 ft (27.1 m)
Longest span33 ft (10.1 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic193 (2024)
Projected traffic270 by 2043
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$49,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FR Cnty RD 345 over N Fork Little Wind River built?

It was built in 1960, making it 65 years old in 2025.

What condition is FR Cnty RD 345 over N Fork Little Wind 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 March 2023.

How much traffic does FR Cnty RD 345 over N Fork Little Wind River carry?

About 193 vehicles per day (2024 count), of which roughly 30% are trucks.

How long is FR Cnty RD 345 over N Fork Little Wind River?

The structure is 89 ft (27.1 m) long with a longest span of 33 ft (10.1 m) and a deck 27 ft wide.

Who owns FR Cnty RD 345 over N Fork Little Wind River?

It is owned by the County Highway Agency.