US Bridges

SW Cnty RD 6 over Green River

Good

Sweetwater County, Wyoming · Oci Chemical Road · Structure no. KVI

Built
1998
27 years old
Condition
Good
inspected August 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
424 ft
4 main spans
Daily traffic
1,054
2024 count
Owner
County
County Highway Agency

About this bridge

SW Cnty RD 6 over Green River is a steel continuous stringer/multi-beam or girder carrying SW Cnty RD 6 over Green River in Sweetwater County, Wyoming. It was built in 1998, so it is 27 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.

It carries about 1,054 vehicles a day, roughly 7% of them trucks, projected to reach 1,476 by 2043. The structure is 424 ft (129.2 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesSW Cnty RD 6
CrossesGreen River
LocationOci Chemical Road
RouteCounty Highway 6
StateWyoming
Coordinates41.70551, -109.70672
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 protection7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating64 US tons
Inventory rating38 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length424 ft (129.2 m)
Longest span115 ft (35 m)
Deck width33 ft (10 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,054 (2024)
Projected traffic1,476 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$22,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SW Cnty RD 6 over Green River built?

It was built in 1998, making it 27 years old in 2025.

What condition is SW Cnty RD 6 over Green 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 August 2022.

How much traffic does SW Cnty RD 6 over Green River carry?

About 1,054 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is SW Cnty RD 6 over Green River?

The structure is 424 ft (129.2 m) long with a longest span of 115 ft (35 m) and a deck 33 ft wide.

Who owns SW Cnty RD 6 over Green River?

It is owned by the County Highway Agency.