US Bridges

CO Cnty RD 7 over Labonte Creek

FairPosted for load

Converse County, Wyoming · 15 Miles South of Douglas · Structure no. DTM

Built
1970
55 years old
Condition
Fair
inspected September 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
95 ft
3 main spans
Daily traffic
43
2024 count
Owner
County
County Highway Agency

About this bridge

CO Cnty RD 7 over Labonte Creek is a steel continuous girder and floorbeam system carrying CO Cnty RD 7 over Labonte Creek in Converse County, Wyoming. It was built in 1970, so it is 55 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 43 vehicles a day, roughly 2% of them trucks, projected to reach 60 by 2043. The structure is 95 ft (29 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCO Cnty RD 7
CrossesLabonte Creek
Location15 Miles South of Douglas
RouteCounty Highway 7
StateWyoming
Coordinates42.50428, -105.44065
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating42.5 US tons
Inventory rating25.6 US tons

Structure

MaterialSteel Continuous
DeckWood or timber
Main spans3
Design loadHS 20
Structure length95 ft (29 m)
Longest span42 ft (12.8 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43 (2024)
Projected traffic60 by 2043
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$525,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CO Cnty RD 7 over Labonte Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is CO Cnty RD 7 over Labonte 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 September 2024.

How much traffic does CO Cnty RD 7 over Labonte Creek carry?

About 43 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is CO Cnty RD 7 over Labonte Creek?

The structure is 95 ft (29 m) long with a longest span of 42 ft (12.8 m) and a deck 16 ft wide.

Who owns CO Cnty RD 7 over Labonte Creek?

It is owned by the County Highway Agency.