US Bridges

County Road 21 over Catlin Canal

Good

Otero County, Colorado · 0.2 MI S of CR Dd · Structure no. OT-21-B106-2020

Built
2020
5 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
306
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 21 over Catlin Canal is a steel stringer/multi-beam or girder carrying County Road 21 over Catlin Canal in Otero County, Colorado. It was built in 2020, so it is 5 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 306 vehicles a day, projected to reach 346 by 2042. The structure is 32 ft (9.7 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 21
CrossesCatlin Canal
Location0.2 MI S of CR Dd
RouteCounty Highway 0
CountyOtero County
StateColorado
Coordinates38.02267, -103.69261
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating59.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length32 ft (9.7 m)
Longest span25 ft (7.7 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic306 (2022)
Projected traffic346 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road 21 over Catlin Canal built?

It was built in 2020, making it 5 years old in 2025.

What condition is County Road 21 over Catlin Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does County Road 21 over Catlin Canal carry?

About 306 vehicles per day (2022 count).

How long is County Road 21 over Catlin Canal?

The structure is 32 ft (9.7 m) long with a longest span of 25 ft (7.7 m) and a deck 26 ft wide.

Who owns County Road 21 over Catlin Canal?

It is owned by the County Highway Agency.