US Bridges

City St.-Columbia over Cornet Creek

Good

San Miguel County, Colorado · 200 Ft E of N Comet ST · Structure no. TELLRD-COLUMB-A

Built
1988
37 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
596
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

City St.-Columbia over Cornet Creek is a concrete slab carrying City St.-Columbia over Cornet Creek in San Miguel County, Colorado. It was built in 1988, so it is 37 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 596 vehicles a day, roughly 2% of them trucks, projected to reach 679 by 2042. The structure is 27 ft (8.2 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCity St.-Columbia
CrossesCornet Creek
Location200 Ft E of N Comet ST
RouteCity Street 0
Coordinates37.93969, -107.81697
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66.4 US tons
Inventory rating39.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width37 ft (11.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic596 (2022)
Projected traffic679 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 City St.-Columbia over Cornet Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is City St.-Columbia over Cornet Creek 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 June 2024.

How much traffic does City St.-Columbia over Cornet Creek carry?

About 596 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is City St.-Columbia over Cornet Creek?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 37 ft wide.

Who owns City St.-Columbia over Cornet Creek?

It is owned by the Town or Township Highway Agency.