US Bridges

CO RD 45S over Cow Creek

FairPosted for load

Converse County, Wyoming · 46 Miles N.E. of Douglas · Structure no. DTQ

Built
1977
48 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
67 ft
2 main spans
Daily traffic
260
2024 count
Owner
County
County Highway Agency

About this bridge

CO RD 45S over Cow Creek is a steel continuous stringer/multi-beam or girder carrying CO RD 45S over Cow Creek in Converse 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 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 260 vehicles a day, roughly 43% of them trucks, projected to reach 364 by 2043. The structure is 67 ft (20.4 m) long and 17 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesCO RD 45S
CrossesCow Creek
Location46 Miles N.E. of Douglas
RouteCounty Highway 61
CountyConverse County
StateWyoming
Coordinates43.30788, -104.9158
Functional classRural Minor Collector

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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36.4 US tons
Inventory rating21.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length67 ft (20.4 m)
Longest span34 ft (10.4 m)
Deck width17 ft (5.2 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2024)
Projected traffic364 by 2043
Trucks43%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$48,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 45S over Cow Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is CO RD 45S over Cow 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 RD 45S over Cow Creek carry?

About 260 vehicles per day (2024 count), of which roughly 43% are trucks.

How long is CO RD 45S over Cow Creek?

The structure is 67 ft (20.4 m) long with a longest span of 34 ft (10.4 m) and a deck 17 ft wide.

Who owns CO RD 45S over Cow Creek?

It is owned by the County Highway Agency.