US Bridges

Cougar Road over Deer Creek

Good

Jefferson County, Colorado · 2.7 MI W of SH75 · Structure no. G-15-63

Built
1969
56 years old
Condition
Good
inspected February 2025
Type
Slab
Concrete Continuous
Length
43 ft
2 main spans
Daily traffic
889
2021 count
Owner
County
County Highway Agency

About this bridge

Cougar Road over Deer Creek is a concrete continuous slab carrying Cougar Road over Deer Creek in Jefferson County, Colorado. It was built in 1969, so it is 56 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 889 vehicles a day, roughly 4% of them trucks, projected to reach 1,022 by 2041. The structure is 43 ft (13.1 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCougar Road
CrossesDeer Creek
Location2.7 MI W of SH75
RouteCounty Highway 0
Coordinates39.54922, -105.1347
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span20 ft (6 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic889 (2021)
Projected traffic1,022 by 2041
Trucks4%
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 Cougar Road over Deer Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Cougar Road over Deer 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 February 2025.

How much traffic does Cougar Road over Deer Creek carry?

About 889 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Cougar Road over Deer Creek?

The structure is 43 ft (13.1 m) long with a longest span of 20 ft (6 m) and a deck 33 ft wide.

Who owns Cougar Road over Deer Creek?

It is owned by the County Highway Agency.