US Bridges

Wyo 59 over Unnamed Draw

Fair

Campbell County, Wyoming · Reno JCT - Gillette · Structure no. DCI

Built
1977
48 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
76 ft
3 main spans
Daily traffic
4,826
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 59 over Unnamed Draw is a steel continuous stringer/multi-beam or girder carrying Wyo 59 over Unnamed Draw in Campbell County, Wyoming. It was built in 1977, so it is 48 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 4,826 vehicles a day, roughly 24% of them trucks, projected to reach 6,756 by 2043. The structure is 76 ft (23.2 m) long and 39 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesWyo 59
CrossesUnnamed Draw
LocationReno JCT - Gillette
RouteState Highway 59
CountyCampbell County
StateWyoming
Coordinates43.86199, -105.45858
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span30 ft (9.1 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,826 (2024)
Projected traffic6,756 by 2043
Trucks24%
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 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 Wyo 59 over Unnamed Draw built?

It was built in 1977, making it 48 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 July 2024.

How much traffic does Wyo 59 over Unnamed Draw carry?

About 4,826 vehicles per day (2024 count), of which roughly 24% are trucks.

How long is Wyo 59 over Unnamed Draw?

The structure is 76 ft (23.2 m) long with a longest span of 30 ft (9.1 m) and a deck 39 ft wide.

Who owns Wyo 59 over Unnamed Draw?

It is owned by the State Highway Agency.