US Bridges

County Road 15 over Conejos River

Fair

Conejos County, Colorado · 2.0 MI N of CR G · Structure no. CON02.0E-01.9NA

Built
1996
29 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
95 ft
1 main span
Daily traffic
38
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 15 over Conejos River is a prestressed concrete stringer/multi-beam or girder carrying County Road 15 over Conejos River in Conejos County, Colorado. It was built in 1996, so it is 29 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 5 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 38 vehicles a day, projected to reach 43 by 2042. The structure is 95 ft (29 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 15
CrossesConejos River
Location2.0 MI N of CR G
RouteCounty Highway 0
CountyConejos County
StateColorado
Coordinates37.10714, -105.98285
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating100.9 US tons
Inventory rating49.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length95 ft (29 m)
Longest span90 ft (27.4 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38 (2022)
Projected traffic43 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 15 over Conejos River built?

It was built in 1996, making it 29 years old in 2025.

What condition is County Road 15 over Conejos River 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 15 over Conejos River carry?

About 38 vehicles per day (2022 count).

How long is County Road 15 over Conejos River?

The structure is 95 ft (29 m) long with a longest span of 90 ft (27.4 m) and a deck 32 ft wide.

Who owns County Road 15 over Conejos River?

It is owned by the County Highway Agency.