US Bridges

CO Cnty RD 11 over Canal

Fair

Converse County, Wyoming · 8 Mi. W. of Douglas · Structure no. KUN

Built
1997
28 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
37
2024 count
Owner
County
County Highway Agency

About this bridge

CO Cnty RD 11 over Canal is a prestressed concrete tee beam carrying CO Cnty RD 11 over Canal in Converse County, Wyoming. It was built in 1997, so it is 28 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 5 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 37 vehicles a day, roughly 8% of them trucks, projected to reach 52 by 2043. The structure is 35 ft (10.7 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCO Cnty RD 11
CrossesCanal
Location8 Mi. W. of Douglas
RouteCounty Highway 11
CountyConverse County
StateWyoming
Coordinates42.76545, -105.51862
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.4 US tons
Inventory rating33.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length35 ft (10.7 m)
Longest span34 ft (10.4 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2024)
Projected traffic52 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$38,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CO Cnty RD 11 over Canal built?

It was built in 1997, making it 28 years old in 2025.

What condition is CO Cnty RD 11 over Canal 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 11 over Canal carry?

About 37 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is CO Cnty RD 11 over Canal?

The structure is 35 ft (10.7 m) long with a longest span of 34 ft (10.4 m) and a deck 27 ft wide.

Who owns CO Cnty RD 11 over Canal?

It is owned by the County Highway Agency.