US Bridges

Knox Court over Lakewood Gulch

Fair

Denver County, Colorado · Just N of 12th Ave · Structure no. D-16-LG-080A

Built
2014
11 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
62 ft
3 main spans
Daily traffic
3,320
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Knox Court over Lakewood Gulch is a concrete culvert carrying Knox Court over Lakewood Gulch in Denver County, Colorado. It was built in 2014, so it is 11 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 3,320 vehicles a day, roughly 2% of them trucks, projected to reach 3,685 by 2041. The structure is 62 ft (18.8 m) long and 85 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesKnox Court
CrossesLakewood Gulch
LocationJust N of 12th Ave
RouteCity Street 0
CountyDenver County
StateColorado
Coordinates39.73486, -105.03224
Functional classUrban Collector

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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 spans3
Design loadHS 20
Structure length62 ft (18.8 m)
Longest span20 ft (6.1 m)
Deck width85 ft (25.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,320 (2021)
Projected traffic3,685 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 Knox Court over Lakewood Gulch built?

It was built in 2014, making it 11 years old in 2025.

What condition is Knox Court over Lakewood Gulch 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 October 2024.

How much traffic does Knox Court over Lakewood Gulch carry?

About 3,320 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Knox Court over Lakewood Gulch?

The structure is 62 ft (18.8 m) long with a longest span of 20 ft (6.1 m) and a deck 85 ft wide.

Who owns Knox Court over Lakewood Gulch?

It is owned by the City or Municipal Highway Agency.