US Bridges

US 16 over Unnamed Draw

Good

Washakie County, Wyoming · Worland-Manderson · Structure no. KMR

Built
1994
31 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
2,145
2024 count
Owner
State
State Highway Agency

About this bridge

US 16 over Unnamed Draw is a concrete continuous culvert carrying US 16 over Unnamed Draw in Washakie County, Wyoming. It was built in 1994, so it is 31 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 2,145 vehicles a day, roughly 16% of them trucks, projected to reach 3,003 by 2043. The structure is 21 ft (6.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 16
CrossesUnnamed Draw
LocationWorland-Manderson
RouteU.S. Route 16
StateWyoming
Coordinates44.09518, -107.92127
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,145 (2024)
Projected traffic3,003 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 16 over Unnamed Draw built?

It was built in 1994, making it 31 years old in 2025.

What condition is US 16 over Unnamed Draw 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 April 2024.

How much traffic does US 16 over Unnamed Draw carry?

About 2,145 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is US 16 over Unnamed Draw?

The structure is 21 ft (6.5 m) long with a longest span of 10 ft (3 m).

Who owns US 16 over Unnamed Draw?

It is owned by the State Highway Agency.