US Bridges

County Road Bb over Rocky Ford Canal

Fair

Otero County, Colorado · .5 MI E of CR 21 · Structure no. OT-BB-20-24-117

Built
1967
58 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
58
2022 count
Owner
County
County Highway Agency

About this bridge

County Road Bb over Rocky Ford Canal is a steel stringer/multi-beam or girder carrying County Road Bb over Rocky Ford Canal in Otero County, Colorado. It was built in 1967, so it is 58 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 58 vehicles a day, projected to reach 65 by 2042. The structure is 24 ft (7.4 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road Bb
CrossesRocky Ford Canal
Location.5 MI E of CR 21
RouteCounty Highway 0
CountyOtero County
StateColorado
Coordinates37.99697, -103.68344
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 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 rating46.8 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.4 m)
Longest span21 ft (6.4 m)
Deck width24 ft (7.2 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2022)
Projected traffic65 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 Bb over Rocky Ford Canal built?

It was built in 1967, making it 58 years old in 2025.

What condition is County Road Bb over Rocky Ford 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 Bb over Rocky Ford Canal carry?

About 58 vehicles per day (2022 count).

How long is County Road Bb over Rocky Ford Canal?

The structure is 24 ft (7.4 m) long with a longest span of 21 ft (6.4 m) and a deck 24 ft wide.

Who owns County Road Bb over Rocky Ford Canal?

It is owned by the County Highway Agency.