US Bridges

S Frontier Road over Crow Creek

Poor

Laramie County, Wyoming · 0.10 Miles North of Missi · Structure no. AFWYGHLN00670

Built
1985
40 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
137 ft
1 main span
Daily traffic
410
2013 count
Owner
Federal
Air Force

About this bridge

S Frontier Road over Crow Creek is a prestressed concrete stringer/multi-beam or girder carrying S Frontier Road over Crow Creek in Laramie County, Wyoming. It was built in 1985, so it is 40 years old, younger than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 410 vehicles a day, projected to reach 492 by 2033. The structure is 137 ft (41.8 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesS Frontier Road
CrossesCrow Creek
Location0.10 Miles North of Missi
CountyLaramie County
StateWyoming
Coordinates41.14877, -104.86594
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length137 ft (41.8 m)
Longest span134 ft (40.8 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2013)
Projected traffic492 by 2033
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerAir Force
Maintained byAir Force
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$510,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S Frontier Road over Crow Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is S Frontier Road over Crow Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does S Frontier Road over Crow Creek carry?

About 410 vehicles per day (2013 count).

How long is S Frontier Road over Crow Creek?

The structure is 137 ft (41.8 m) long with a longest span of 134 ft (40.8 m) and a deck 41 ft wide.

Who owns S Frontier Road over Crow Creek?

It is owned by the Air Force.