US Bridges

Joliet ST over Cottonwood Creek Trib.

Fair

Arapahoe County, Colorado · .4 MI S of E Easter Ave · Structure no. ARA 41.5-1.2

Built
1989
36 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
212
2021 count
Owner
County
County Highway Agency

About this bridge

Joliet ST over Cottonwood Creek Trib. is a concrete culvert carrying Joliet ST over Cottonwood Creek Trib. in Arapahoe 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 212 vehicles a day, projected to reach 258 by 2041. The structure is 25 ft (7.5 m) long and 171 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesJoliet ST
CrossesCottonwood Creek Trib.
Location.4 MI S of E Easter Ave
RouteCounty Highway 0
CountyArapahoe County
StateColorado
Coordinates39.58279, -104.86056
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length25 ft (7.5 m)
Longest span6 ft (1.9 m)
Deck width171 ft (52.1 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic212 (2021)
Projected traffic258 by 2041
Trucks0%
Lanes on structure3
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

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 Joliet ST over Cottonwood Creek Trib. built?

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

What condition is Joliet ST over Cottonwood Creek Trib. 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 November 2023.

How much traffic does Joliet ST over Cottonwood Creek Trib. carry?

About 212 vehicles per day (2021 count).

How long is Joliet ST over Cottonwood Creek Trib.?

The structure is 25 ft (7.5 m) long with a longest span of 6 ft (1.9 m) and a deck 171 ft wide.

Who owns Joliet ST over Cottonwood Creek Trib.?

It is owned by the County Highway Agency.