US Bridges

County Road 25 over Pawnee Ditch

FairPosted for load

Logan County, Colorado · 0.7 MI N of US HWY 6 · Structure no. LOG25-8.8-41

Built
1950
75 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
777
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 25 over Pawnee Ditch is a steel stringer/multi-beam or girder carrying County Road 25 over Pawnee Ditch in Logan County, Colorado. It was built in 1950, so it is 75 years old, older 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. Its operating status is: posted for load restriction.

It carries about 777 vehicles a day, roughly 30% of them trucks, projected to reach 956 by 2042. The structure is 32 ft (9.8 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCounty Road 25
CrossesPawnee Ditch
Location0.7 MI N of US HWY 6
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.4938, -103.3513
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.3 US tons
Inventory rating16.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic777 (2023)
Projected traffic956 by 2042
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 25 over Pawnee Ditch built?

It was built in 1950, making it 75 years old in 2025.

What condition is County Road 25 over Pawnee Ditch 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 25 over Pawnee Ditch carry?

About 777 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is County Road 25 over Pawnee Ditch?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 24 ft wide.

Who owns County Road 25 over Pawnee Ditch?

It is owned by the County Highway Agency.