US Bridges

LA Cnty RD 236-1 over Little Horse Creek

FairPosted for load

Laramie County, Wyoming · T18N R062W S17 · Structure no. DOZ

Built
1920
105 years old
Condition
Fair
inspected December 2024
Type
Tee Beam
Concrete
Length
26 ft
1 main span
Daily traffic
29
2024 count
Owner
County
County Highway Agency

About this bridge

LA Cnty RD 236-1 over Little Horse Creek is a concrete tee beam carrying LA Cnty RD 236-1 over Little Horse Creek in Laramie County, Wyoming. It was built in 1920, so it is 105 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 29 vehicles a day, roughly 10% of them trucks, projected to reach 41 by 2043. The structure is 26 ft (7.9 m) long and 21 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA Cnty RD 236-1
CrossesLittle Horse Creek
LocationT18N R062W S17
RouteCounty Highway 236-1
StateWyoming
Coordinates41.52478, -104.32486
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating33.7 US tons
Inventory rating20.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width21 ft (6.4 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2024)
Projected traffic41 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$37,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA Cnty RD 236-1 over Little Horse Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is LA Cnty RD 236-1 over Little Horse 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 December 2024.

How much traffic does LA Cnty RD 236-1 over Little Horse Creek carry?

About 29 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is LA Cnty RD 236-1 over Little Horse Creek?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 21 ft wide.

Who owns LA Cnty RD 236-1 over Little Horse Creek?

It is owned by the County Highway Agency.