US Bridges

Wyo 59 over Unnamed Draw

Fair

Converse County, Wyoming · Douglas-Bill · Structure no. HUT

Built
1981
44 years old
Condition
Fair
inspected January 2025
Type
Culvert
Steel
Length
50 ft
4 main spans
Daily traffic
2,823
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 59 over Unnamed Draw is a steel culvert carrying Wyo 59 over Unnamed Draw in Converse County, Wyoming. It was built in 1981, so it is 44 years old, younger 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 2,823 vehicles a day, roughly 32% of them trucks, projected to reach 3,952 by 2043. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesWyo 59
CrossesUnnamed Draw
LocationDouglas-Bill
RouteState Highway 59
StateWyoming
Coordinates43.19615, -105.25973
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span10 ft (2.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,823 (2024)
Projected traffic3,952 by 2043
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyo 59 over Unnamed Draw built?

It was built in 1981, making it 44 years old in 2025.

What condition is Wyo 59 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 January 2025.

How much traffic does Wyo 59 over Unnamed Draw carry?

About 2,823 vehicles per day (2024 count), of which roughly 32% are trucks.

How long is Wyo 59 over Unnamed Draw?

The structure is 50 ft (15.2 m) long with a longest span of 10 ft (2.9 m).

Who owns Wyo 59 over Unnamed Draw?

It is owned by the State Highway Agency.