US Bridges

County Road 65 over Soda Creek

Good

Jefferson County, Colorado · 1.3 MI So of I 70 · Structure no. A-20-32

Built
1978
47 years old
Condition
Good
inspected March 2025
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
4,517
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 65 over Soda Creek is a concrete culvert carrying County Road 65 over Soda Creek in Jefferson County, Colorado. It was built in 1978, so it is 47 years old, older 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 4,517 vehicles a day, roughly 9% of them trucks, projected to reach 5,194 by 2041. The structure is 26 ft (7.9 m) long and 82 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCounty Road 65
CrossesSoda Creek
Location1.3 MI So of I 70
RouteCounty Highway 0
Coordinates39.70269, -105.37871
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 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 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 rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span12 ft (3.8 m)
Deck width82 ft (24.9 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,517 (2021)
Projected traffic5,194 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 65 over Soda Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is County Road 65 over Soda 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 March 2025.

How much traffic does County Road 65 over Soda Creek carry?

About 4,517 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is County Road 65 over Soda Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.8 m) and a deck 82 ft wide.

Who owns County Road 65 over Soda Creek?

It is owned by the County Highway Agency.