US Bridges

County Road 18 over Otero Canal

Poor

Otero County, Colorado · .3 MI N of CR Ee · Structure no. OT18-17-27-068

Built
1966
59 years old
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
784
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 18 over Otero Canal is a steel stringer/multi-beam or girder carrying County Road 18 over Otero Canal in Otero County, Colorado. It was built in 1966, so it is 59 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 784 vehicles a day, roughly 2% of them trucks, projected to reach 886 by 2042. The structure is 25 ft (7.6 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCounty Road 18
CrossesOtero Canal
Location.3 MI N of CR Ee
RouteCounty Highway 0
Coordinates38.04516, -103.74783
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 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 rating48.8 US tons
Inventory rating29.2 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span22 ft (6.8 m)
Deck width25 ft (7.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic784 (2022)
Projected traffic886 by 2042
Trucks2%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 18 over Otero Canal built?

It was built in 1966, making it 59 years old in 2025.

What condition is County Road 18 over Otero Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does County Road 18 over Otero Canal carry?

About 784 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 18 over Otero Canal?

The structure is 25 ft (7.6 m) long with a longest span of 22 ft (6.8 m) and a deck 25 ft wide.

Who owns County Road 18 over Otero Canal?

It is owned by the County Highway Agency.