US Bridges

County Lane 12 over Bob Creek

Fair

Crowley County, Colorado · .3 MI N of Road G · Structure no. CRCO 1.80-9A

Built
1994
31 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
90
2021 count
Owner
County
County Highway Agency

About this bridge

County Lane 12 over Bob Creek is a steel stringer/multi-beam or girder carrying County Lane 12 over Bob Creek in Crowley County, Colorado. It was built in 1994, so it is 31 years old, younger than the Colorado average of 42.2 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 90 vehicles a day, projected to reach 110 by 2041. The structure is 61 ft (18.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Lane 12
CrossesBob Creek
Location.3 MI N of Road G
RouteCounty Highway 0
CountyCrowley County
StateColorado
Coordinates38.2184, -103.85756
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.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.7 US tons
Inventory rating39.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span57 ft (17.3 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2021)
Projected traffic110 by 2041
Trucks0%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Lane 12 over Bob Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is County Lane 12 over Bob 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 January 2025.

How much traffic does County Lane 12 over Bob Creek carry?

About 90 vehicles per day (2021 count).

How long is County Lane 12 over Bob Creek?

The structure is 61 ft (18.6 m) long with a longest span of 57 ft (17.3 m) and a deck 31 ft wide.

Who owns County Lane 12 over Bob Creek?

It is owned by the County Highway Agency.