US Bridges

County Road 23 over Pawnee Creek

Fair

Logan County, Colorado · 0.9 MI N of CO RD 20.5 · Structure no. LOG23-22.4-23-A

Built
2005
20 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 23 over Pawnee Creek is a prestressed concrete tee beam carrying County Road 23 over Pawnee Creek in Logan County, Colorado. It was built in 2005, so it is 20 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 20 vehicles a day, roughly 43% of them trucks, projected to reach 24 by 2042. The structure is 50 ft (15.2 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Road 23
CrossesPawnee Creek
Location0.9 MI N of CO RD 20.5
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.58672, -103.37339
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating53.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length50 ft (15.2 m)
Longest span47 ft (14.4 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic24 by 2042
Trucks43%
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 Road 23 over Pawnee Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is County Road 23 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 23 over Pawnee Creek carry?

About 20 vehicles per day (2023 count), of which roughly 43% are trucks.

How long is County Road 23 over Pawnee Creek?

The structure is 50 ft (15.2 m) long with a longest span of 47 ft (14.4 m) and a deck 34 ft wide.

Who owns County Road 23 over Pawnee Creek?

It is owned by the County Highway Agency.