US Bridges

Coon Creek over Bowles Ave

Fair

Jefferson County, Colorado · Bowles & Jay Ct · Structure no. J-17-12

Built
1989
36 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
57 ft
3 main spans
Daily traffic
26,322
2021 count
Owner
County
County Highway Agency

About this bridge

Coon Creek over Bowles Ave is a concrete culvert carrying Coon Creek over Bowles Ave in Jefferson County, Colorado. It was built in 1989, so it is 36 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 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 26,322 vehicles a day, roughly 5% of them trucks, projected to reach 30,270 by 2041. The structure is 57 ft (17.3 m) long and 142 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCoon Creek
CrossesBowles Ave
LocationBowles & Jay Ct
RouteCounty Highway 0
Coordinates39.60979, -105.06597
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 spans3
Design loadUnknown
Structure length57 ft (17.3 m)
Longest span21 ft (6.3 m)
Deck width142 ft (43.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,322 (2021)
Projected traffic30,270 by 2041
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Coon Creek over Bowles Ave built?

It was built in 1989, making it 36 years old in 2025.

What condition is Coon Creek over Bowles Ave 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 February 2023.

How much traffic does Coon Creek over Bowles Ave carry?

About 26,322 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Coon Creek over Bowles Ave?

The structure is 57 ft (17.3 m) long with a longest span of 21 ft (6.3 m) and a deck 142 ft wide.

Who owns Coon Creek over Bowles Ave?

It is owned by the County Highway Agency.