US Bridges

CO Cnty RD 4 over Red Draw

Fair

Converse County, Wyoming · 17 Mi. S.W. of Douglas · Structure no. KUA

Built
1996
29 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
92
2024 count
Owner
County
County Highway Agency

About this bridge

CO Cnty RD 4 over Red Draw is a steel stringer/multi-beam or girder carrying CO Cnty RD 4 over Red Draw in Converse County, Wyoming. It was built in 1996, so it is 29 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 92 vehicles a day, roughly 16% of them trucks, projected to reach 129 by 2043. The structure is 32 ft (9.8 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCO Cnty RD 4
CrossesRed Draw
Location17 Mi. S.W. of Douglas
RouteCounty Highway 4
CountyConverse County
StateWyoming
Coordinates42.60766, -105.50937
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 alignment6: Equal to present minimum criteria
Operating rating103 US tons
Inventory rating61 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92 (2024)
Projected traffic129 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$41,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CO Cnty RD 4 over Red Draw built?

It was built in 1996, making it 29 years old in 2025.

What condition is CO Cnty RD 4 over Red 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 September 2023.

How much traffic does CO Cnty RD 4 over Red Draw carry?

About 92 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is CO Cnty RD 4 over Red Draw?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 20 ft wide.

Who owns CO Cnty RD 4 over Red Draw?

It is owned by the County Highway Agency.