US Bridges

County Road 13 over Arkansas River

Fair

Prowers County, Colorado · 5.4 MI E of Lamar · Structure no. PR13-12-308-41A

Built
1995
30 years old, rebuilt 2023
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
369 ft
5 main spans
Daily traffic
169
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 13 over Arkansas River is a steel continuous stringer/multi-beam or girder carrying County Road 13 over Arkansas River in Prowers County, Colorado. It was built in 1995 and reconstructed in 2023, so it is 30 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 169 vehicles a day, roughly 2% of them trucks, projected to reach 202 by 2042. The structure is 369 ft (112.4 m) long and 32 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCounty Road 13
CrossesArkansas River
Location5.4 MI E of Lamar
RouteCounty Highway 0
CountyProwers County
StateColorado
Coordinates38.09653, -102.51951
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.8 US tons
Inventory rating29.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans5
Design loadHS 20
Structure length369 ft (112.4 m)
Longest span79 ft (24.1 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic169 (2022)
Projected traffic202 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$240,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 13 over Arkansas River built?

It was built in 1995, making it 30 years old in 2025. It was reconstructed in 2023.

What condition is County Road 13 over Arkansas River 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 June 2023.

How much traffic does County Road 13 over Arkansas River carry?

About 169 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 13 over Arkansas River?

The structure is 369 ft (112.4 m) long with a longest span of 79 ft (24.1 m) and a deck 32 ft wide.

Who owns County Road 13 over Arkansas River?

It is owned by the County Highway Agency.