US Bridges

US 16 over Alum Creek

Fair

Weston County, Wyoming · Upton - Newcastle · Structure no. CHT

Built
1957
68 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
74 ft
3 main spans
Daily traffic
1,393
2024 count
Owner
State
State Highway Agency

About this bridge

US 16 over Alum Creek is a concrete continuous slab carrying US 16 over Alum Creek in Weston County, Wyoming. It was built in 1957, so it is 68 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 1,393 vehicles a day, roughly 16% of them trucks, projected to reach 1,950 by 2043. The structure is 74 ft (22.6 m) long and 35 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

Location

Open in Google Maps
CarriesUS 16
CrossesAlum Creek
LocationUpton - Newcastle
RouteU.S. Route 16
CountyWeston County
StateWyoming
Coordinates43.8606, -104.26752
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
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 rating43.9 US tons
Inventory rating26.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span28 ft (8.4 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,393 (2024)
Projected traffic1,950 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 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$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 16 over Alum Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is US 16 over Alum Creek 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 August 2024.

How much traffic does US 16 over Alum Creek carry?

About 1,393 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is US 16 over Alum Creek?

The structure is 74 ft (22.6 m) long with a longest span of 28 ft (8.4 m) and a deck 35 ft wide.

Who owns US 16 over Alum Creek?

It is owned by the State Highway Agency.