US Bridges

SW Cnty RD 5 over Big Sandy River

PoorPosted for load

Sweetwater County, Wyoming · 17 Mi. S.W. of Farson · Structure no. ETE

Built
1960
65 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
123 ft
5 main spans
Daily traffic
9
2024 count
Owner
County
County Highway Agency

About this bridge

SW Cnty RD 5 over Big Sandy River is a wood or timber stringer/multi-beam or girder carrying SW Cnty RD 5 over Big Sandy River in Sweetwater 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 9 vehicles a day, roughly 22% of them trucks, projected to reach 13 by 2043. The structure is 123 ft (37.5 m) long and 16 ft wide. If it were closed, the detour would be 75.8 mi (122 km).

CarriesSW Cnty RD 5
CrossesBig Sandy River
Location17 Mi. S.W. of Farson
RouteCounty Highway 5
StateWyoming
Coordinates41.94716, -109.68798
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41 US tons
Inventory rating30 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadUnknown
Structure length123 ft (37.5 m)
Longest span24 ft (7.3 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9 (2024)
Projected traffic13 by 2043
Trucks22%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed75.8 mi (122 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$62,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SW Cnty RD 5 over Big Sandy River built?

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

What condition is SW Cnty RD 5 over Big Sandy River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does SW Cnty RD 5 over Big Sandy River carry?

About 9 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is SW Cnty RD 5 over Big Sandy River?

The structure is 123 ft (37.5 m) long with a longest span of 24 ft (7.3 m) and a deck 16 ft wide.

Who owns SW Cnty RD 5 over Big Sandy River?

It is owned by the County Highway Agency.