US Bridges

County Road 10 over Monte Vista Canal

Fair

Conejos County, Colorado · Just W of SH 368 · Structure no. CON03.0W-21.0NA

Built
1991
34 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
96
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 10 over Monte Vista Canal is a steel stringer/multi-beam or girder carrying County Road 10 over Monte Vista Canal in Conejos County, Colorado. It was built in 1991, so it is 34 years old, younger 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 96 vehicles a day, projected to reach 111 by 2042. The structure is 48 ft (14.6 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 10
CrossesMonte Vista Canal
LocationJust W of SH 368
RouteCounty Highway 0
CountyConejos County
StateColorado
Coordinates37.3863, -106.07564
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.
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 evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating70.5 US tons
Inventory rating42.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span45 ft (13.7 m)
Deck width34 ft (10.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2022)
Projected traffic111 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 10 over Monte Vista Canal built?

It was built in 1991, making it 34 years old in 2025.

What condition is County Road 10 over Monte Vista 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 March 2025.

How much traffic does County Road 10 over Monte Vista Canal carry?

About 96 vehicles per day (2022 count).

How long is County Road 10 over Monte Vista Canal?

The structure is 48 ft (14.6 m) long with a longest span of 45 ft (13.7 m) and a deck 34 ft wide.

Who owns County Road 10 over Monte Vista Canal?

It is owned by the County Highway Agency.