US Bridges

LA Cnty RD 207-A over Allison Draw

Fair

Laramie County, Wyoming · Cheyenne · Structure no. LEK

Built
2004
21 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
52 ft
4 main spans
Daily traffic
1,342
2024 count
Owner
County
County Highway Agency

About this bridge

LA Cnty RD 207-A over Allison Draw is a concrete culvert carrying LA Cnty RD 207-A over Allison Draw in Laramie County, Wyoming. It was built in 2004, so it is 21 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 1,342 vehicles a day, roughly 6% of them trucks, projected to reach 1,879 by 2043. The structure is 52 ft (15.7 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA Cnty RD 207-A
CrossesAllison Draw
LocationCheyenne
RouteCounty Highway 207A
StateWyoming
Coordinates41.10597, -104.8031
Functional classUrban 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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 25 or greater
Structure length52 ft (15.7 m)
Longest span12 ft (3.7 m)
Deck width50 ft (15.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,342 (2024)
Projected traffic1,879 by 2043
Trucks6%
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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$42,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA Cnty RD 207-A over Allison Draw built?

It was built in 2004, making it 21 years old in 2025.

What condition is LA Cnty RD 207-A over Allison 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 December 2024.

How much traffic does LA Cnty RD 207-A over Allison Draw carry?

About 1,342 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is LA Cnty RD 207-A over Allison Draw?

The structure is 52 ft (15.7 m) long with a longest span of 12 ft (3.7 m) and a deck 50 ft wide.

Who owns LA Cnty RD 207-A over Allison Draw?

It is owned by the County Highway Agency.