US Bridges

LA Cnty RD 123-2 over North Fork Bear Creek

Good

Laramie County, Wyoming · 45 Miles N. of Cheyenne · Structure no. FKS

Built
1986
39 years old
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
284
2024 count
Owner
County
County Highway Agency

About this bridge

LA Cnty RD 123-2 over North Fork Bear Creek is a prestressed concrete box beam or girders - multiple carrying LA Cnty RD 123-2 over North Fork Bear Creek in Laramie County, Wyoming. It was built in 1986, so it is 39 years old, younger than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 284 vehicles a day, roughly 20% of them trucks, projected to reach 398 by 2043. The structure is 80 ft (24.4 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLA Cnty RD 123-2
CrossesNorth Fork Bear Creek
Location45 Miles N. of Cheyenne
RouteCounty Highway 123-2
StateWyoming
Coordinates41.60788, -104.8457
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating70.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadOther
Structure length80 ft (24.4 m)
Longest span77 ft (23.5 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic284 (2024)
Projected traffic398 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$18,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA Cnty RD 123-2 over North Fork Bear Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is LA Cnty RD 123-2 over North Fork Bear Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does LA Cnty RD 123-2 over North Fork Bear Creek carry?

About 284 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is LA Cnty RD 123-2 over North Fork Bear Creek?

The structure is 80 ft (24.4 m) long with a longest span of 77 ft (23.5 m) and a deck 28 ft wide.

Who owns LA Cnty RD 123-2 over North Fork Bear Creek?

It is owned by the County Highway Agency.