US Bridges

North Bridge RD over Vallecito Creek

Fair

La Plata County, Colorado · 1.8 MI N Vallecito Lake · Structure no. 067NV2700.0009A

Built
1971
54 years old, rebuilt 1994
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
56 ft
1 main span
Daily traffic
40
2022 count
Owner
County
County Highway Agency

About this bridge

North Bridge RD over Vallecito Creek is a steel stringer/multi-beam or girder carrying North Bridge RD over Vallecito Creek in La Plata County, Colorado. It was built in 1971 and reconstructed in 1994, so it is 54 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 40 vehicles a day, projected to reach 48 by 2042. The structure is 56 ft (17.2 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesNorth Bridge RD
CrossesVallecito Creek
Location1.8 MI N Vallecito Lake
RouteCounty Highway 0
Coordinates37.46778, -107.54945
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
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 rating87.1 US tons
Inventory rating52.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length56 ft (17.2 m)
Longest span52 ft (15.8 m)
Deck width24 ft (7.3 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2022)
Projected traffic48 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 North Bridge RD over Vallecito Creek built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1994.

What condition is North Bridge RD over Vallecito Creek 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 October 2024.

How much traffic does North Bridge RD over Vallecito Creek carry?

About 40 vehicles per day (2022 count).

How long is North Bridge RD over Vallecito Creek?

The structure is 56 ft (17.2 m) long with a longest span of 52 ft (15.8 m) and a deck 24 ft wide.

Who owns North Bridge RD over Vallecito Creek?

It is owned by the County Highway Agency.