US Bridges

US 20 over Sand Draw

Fair

Hot Springs County, Wyoming · Thermopolis - Worland · Structure no. CCH

Built
1948
77 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
100 ft
3 main spans
Daily traffic
1,662
2024 count
Owner
State
State Highway Agency

About this bridge

US 20 over Sand Draw is a steel continuous stringer/multi-beam or girder carrying US 20 over Sand Draw in Hot Springs County, Wyoming. It was built in 1948, so it is 77 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 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 1,662 vehicles a day, roughly 17% of them trucks, projected to reach 2,327 by 2043. The structure is 100 ft (30.5 m) long and 35 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesUS 20
CrossesSand Draw
LocationThermopolis - Worland
RouteU.S. Route 20
CountyHot Springs County
StateWyoming
Coordinates43.81834, -108.19919
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span37 ft (11.3 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,662 (2024)
Projected traffic2,327 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$8,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 20 over Sand Draw built?

It was built in 1948, making it 77 years old in 2025.

What condition is US 20 over Sand 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 May 2023.

How much traffic does US 20 over Sand Draw carry?

About 1,662 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is US 20 over Sand Draw?

The structure is 100 ft (30.5 m) long with a longest span of 37 ft (11.3 m) and a deck 35 ft wide.

Who owns US 20 over Sand Draw?

It is owned by the State Highway Agency.