US Bridges

Eaton ST over Sloans Lake Drainage

Fair

Jefferson County, Colorado · .1 MI S of 18th Ave · Structure no. LKWD-06-0.03-03

Built
1982
43 years old
Condition
Fair
inspected April 2021
Type
Culvert
Concrete
Length
41 ft
2 main spans
Daily traffic
753
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Eaton ST over Sloans Lake Drainage is a concrete culvert carrying Eaton ST over Sloans Lake Drainage in Jefferson County, Colorado. It was built in 1982, so it is 43 years old, older 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 753 vehicles a day, roughly 4% of them trucks, projected to reach 866 by 2041. The structure is 41 ft (12.4 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEaton ST
CrossesSloans Lake Drainage
Location.1 MI S of 18th Ave
RouteCity Street 0
Coordinates39.74524, -105.05908
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.9 US tons
Inventory rating46.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length41 ft (12.4 m)
Longest span19 ft (5.9 m)
Deck width59 ft (17.9 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic753 (2021)
Projected traffic866 by 2041
Trucks4%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Eaton ST over Sloans Lake Drainage built?

It was built in 1982, making it 43 years old in 2025.

What condition is Eaton ST over Sloans Lake Drainage 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 April 2021.

How much traffic does Eaton ST over Sloans Lake Drainage carry?

About 753 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Eaton ST over Sloans Lake Drainage?

The structure is 41 ft (12.4 m) long with a longest span of 19 ft (5.9 m) and a deck 59 ft wide.

Who owns Eaton ST over Sloans Lake Drainage?

It is owned by the City or Municipal Highway Agency.