US Bridges

County Road 18.75 over Otero Canal

Fair

Otero County, Colorado · .5 MI N of CR Dd · Structure no. OT18.7-18-27-84

Built
1970
55 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
1 main span
Daily traffic
74
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 18.75 over Otero Canal is a steel stringer/multi-beam or girder carrying County Road 18.75 over Otero Canal in Otero County, Colorado. It was built in 1970, so it is 55 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.

It carries about 74 vehicles a day, projected to reach 84 by 2042. The structure is 27 ft (8.3 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Road 18.75
CrossesOtero Canal
Location.5 MI N of CR Dd
RouteCounty Highway 0
CountyOtero County
StateColorado
Coordinates38.0343, -103.73411
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating49.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length27 ft (8.3 m)
Longest span22 ft (6.6 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74 (2022)
Projected traffic84 by 2042
Trucks0%
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 18.75 over Otero Canal built?

It was built in 1970, making it 55 years old in 2025.

What condition is County Road 18.75 over Otero 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 November 2023.

How much traffic does County Road 18.75 over Otero Canal carry?

About 74 vehicles per day (2022 count).

How long is County Road 18.75 over Otero Canal?

The structure is 27 ft (8.3 m) long with a longest span of 22 ft (6.6 m) and a deck 20 ft wide.

Who owns County Road 18.75 over Otero Canal?

It is owned by the County Highway Agency.