US Bridges

County RD 10.5 over Ft. Lyon Canal

Fair

Prowers County, Colorado · .1 MI S of CR Tt · Structure no. PR105-95-39-34A

Built
1987
38 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
29
2022 count
Owner
County
County Highway Agency

About this bridge

County RD 10.5 over Ft. Lyon Canal is a steel stringer/multi-beam or girder carrying County RD 10.5 over Ft. Lyon Canal in Prowers County, Colorado. It was built in 1987, so it is 38 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 5 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 29 vehicles a day, projected to reach 35 by 2042. The structure is 24 ft (7.4 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCounty RD 10.5
CrossesFt. Lyon Canal
Location.1 MI S of CR Tt
RouteCounty Highway 0
CountyProwers County
StateColorado
Coordinates38.21339, -102.56783
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating29.7 US tons
Inventory rating17.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length24 ft (7.4 m)
Longest span20 ft (6.2 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2022)
Projected traffic35 by 2042
Trucks0%
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 RD 10.5 over Ft. Lyon Canal built?

It was built in 1987, making it 38 years old in 2025.

What condition is County RD 10.5 over Ft. Lyon Canal 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 April 2023.

How much traffic does County RD 10.5 over Ft. Lyon Canal carry?

About 29 vehicles per day (2022 count).

How long is County RD 10.5 over Ft. Lyon Canal?

The structure is 24 ft (7.4 m) long with a longest span of 20 ft (6.2 m) and a deck 26 ft wide.

Who owns County RD 10.5 over Ft. Lyon Canal?

It is owned by the County Highway Agency.