US Bridges

County Road Dd over Monte Vista Canal

Good

Conejos County, Colorado · .5 MI W of CR 11 · Structure no. CON02.5W-20.0NA

Built
1993
32 years old
Condition
Good
inspected March 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
56 ft
2 main spans
Daily traffic
46
2022 count
Owner
County
County Highway Agency

About this bridge

County Road Dd over Monte Vista Canal is a prestressed concrete box beam or girders - multiple carrying County Road Dd over Monte Vista Canal in Conejos County, Colorado. It was built in 1993, so it is 32 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 46 vehicles a day, projected to reach 52 by 2042. The structure is 56 ft (17.1 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road Dd
CrossesMonte Vista Canal
Location.5 MI W of CR 11
RouteCounty Highway 0
CountyConejos County
StateColorado
Coordinates37.37171, -106.06571
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.5 US tons
Inventory rating36.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadUnknown
Structure length56 ft (17.1 m)
Longest span26 ft (7.8 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46 (2022)
Projected traffic52 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 Dd over Monte Vista Canal built?

It was built in 1993, making it 32 years old in 2025.

What condition is County Road Dd over Monte Vista 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 March 2025.

How much traffic does County Road Dd over Monte Vista Canal carry?

About 46 vehicles per day (2022 count).

How long is County Road Dd over Monte Vista Canal?

The structure is 56 ft (17.1 m) long with a longest span of 26 ft (7.8 m) and a deck 30 ft wide.

Who owns County Road Dd over Monte Vista Canal?

It is owned by the County Highway Agency.