US Bridges

Cty RD 8.5/PARK Av over Pawnee Ditch

Fair

Logan County, Colorado · 0.5 Mi. E. of Co. Rd. 23 · Structure no. LOG8.5-23.5-12A

Built
1996
29 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
302
2023 count
Owner
County
County Highway Agency

About this bridge

Cty RD 8.5/PARK Av over Pawnee Ditch is a prestressed concrete tee beam carrying Cty RD 8.5/PARK Av over Pawnee Ditch in Logan County, Colorado. It was built in 1996, so it is 29 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 302 vehicles a day, roughly 38% of them trucks, projected to reach 372 by 2042. The structure is 40 ft (12.2 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCty RD 8.5/PARK Av
CrossesPawnee Ditch
Location0.5 Mi. E. of Co. Rd. 23
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.48628, -103.35861
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span37 ft (11.2 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic302 (2023)
Projected traffic372 by 2042
Trucks38%
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 Cty RD 8.5/PARK Av over Pawnee Ditch built?

It was built in 1996, making it 29 years old in 2025.

What condition is Cty RD 8.5/PARK Av 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 Cty RD 8.5/PARK Av over Pawnee Ditch carry?

About 302 vehicles per day (2023 count), of which roughly 38% are trucks.

How long is Cty RD 8.5/PARK Av over Pawnee Ditch?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.2 m) and a deck 26 ft wide.

Who owns Cty RD 8.5/PARK Av over Pawnee Ditch?

It is owned by the County Highway Agency.