US Bridges

County Road D.5 over Conejos River

Good

Conejos County, Colorado · 4.3 MI SW of Las Mesitas · Structure no. CON09.1W-01.9SA

Built
1995
30 years old
Condition
Good
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
107 ft
2 main spans
Daily traffic
176
2022 count
Owner
County
County Highway Agency

About this bridge

County Road D.5 over Conejos River is a steel continuous stringer/multi-beam or girder carrying County Road D.5 over Conejos River in Conejos County, Colorado. It was built in 1995, so it is 30 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 176 vehicles a day, projected to reach 202 by 2042. The structure is 107 ft (32.6 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Road D.5
CrossesConejos River
Location4.3 MI SW of Las Mesitas
RouteCounty Highway 0
CountyConejos County
StateColorado
Coordinates37.05398, -106.18751
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating110.1 US tons
Inventory rating79.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length107 ft (32.6 m)
Longest span50 ft (15.1 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic176 (2022)
Projected traffic202 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 D.5 over Conejos River built?

It was built in 1995, making it 30 years old in 2025.

What condition is County Road D.5 over Conejos River 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 D.5 over Conejos River carry?

About 176 vehicles per day (2022 count).

How long is County Road D.5 over Conejos River?

The structure is 107 ft (32.6 m) long with a longest span of 50 ft (15.1 m) and a deck 32 ft wide.

Who owns County Road D.5 over Conejos River?

It is owned by the County Highway Agency.