US Bridges

County Road 11.1 over Pawnee Creek

Fair

Logan County, Colorado · 1.9 MI N of ST HWY 14 · Structure no. LOG11.1-30.611A

Built
1998
27 years old
Condition
Fair
inspected January 2024
Type
Culvert
Steel
Length
44 ft
4 main spans
Daily traffic
17
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 11.1 over Pawnee Creek is a steel culvert carrying County Road 11.1 over Pawnee Creek in Logan County, Colorado. It was built in 1998, so it is 27 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 17 vehicles a day, roughly 35% of them trucks, projected to reach 21 by 2042. The structure is 44 ft (13.4 m) long and 52 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesCounty Road 11.1
CrossesPawnee Creek
Location1.9 MI N of ST HWY 14
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.64891, -103.48166
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span8 ft (2.4 m)
Deck width52 ft (16 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17 (2023)
Projected traffic21 by 2042
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Road 11.1 over Pawnee Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is County Road 11.1 over Pawnee 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 2024.

How much traffic does County Road 11.1 over Pawnee Creek carry?

About 17 vehicles per day (2023 count), of which roughly 35% are trucks.

How long is County Road 11.1 over Pawnee Creek?

The structure is 44 ft (13.4 m) long with a longest span of 8 ft (2.4 m) and a deck 52 ft wide.

Who owns County Road 11.1 over Pawnee Creek?

It is owned by the County Highway Agency.