US Bridges

Wyo 374 over Unnamed Draw

Fair

Sweetwater County, Wyoming · JCT I-80 - Green River · Structure no. CHM

Built
1942
83 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
23 ft
3 main spans
Daily traffic
2,401
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 374 over Unnamed Draw is a concrete continuous culvert carrying Wyo 374 over Unnamed Draw in Sweetwater County, Wyoming. It was built in 1942, so it is 83 years old, older 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 6 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 2,401 vehicles a day, roughly 6% of them trucks, projected to reach 3,361 by 2043. The structure is 23 ft (6.9 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWyo 374
CrossesUnnamed Draw
LocationJCT I-80 - Green River
RouteState Highway 374
StateWyoming
Coordinates41.55333, -109.49988
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating37.1 US tons
Inventory rating22.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length23 ft (6.9 m)
Longest span7 ft (2.1 m)
Deck width39 ft (12 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,401 (2024)
Projected traffic3,361 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyo 374 over Unnamed Draw built?

It was built in 1942, making it 83 years old in 2025.

What condition is Wyo 374 over Unnamed Draw 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 June 2023.

How much traffic does Wyo 374 over Unnamed Draw carry?

About 2,401 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Wyo 374 over Unnamed Draw?

The structure is 23 ft (6.9 m) long with a longest span of 7 ft (2.1 m) and a deck 39 ft wide.

Who owns Wyo 374 over Unnamed Draw?

It is owned by the State Highway Agency.