US Bridges

Clarkson Street over Little Dry Creek

Fair

Arapahoe County, Colorado · .3 MI S of Hampden Ave · Structure no. ENGLWD-CLLD

Built
1972
53 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
3,616
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Clarkson Street over Little Dry Creek is a prestressed concrete tee beam carrying Clarkson Street over Little Dry Creek in Arapahoe County, Colorado. It was built in 1972, so it is 53 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 3,616 vehicles a day, roughly 4% of them trucks, projected to reach 4,411 by 2041. The structure is 43 ft (13.1 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesClarkson Street
CrossesLittle Dry Creek
Location.3 MI S of Hampden Ave
RouteCity Street 0
Coordinates39.64878, -104.97833
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than 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 typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span40 ft (12.2 m)
Deck width54 ft (16.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,616 (2021)
Projected traffic4,411 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 Clarkson Street over Little Dry Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Clarkson Street over Little Dry Creek 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 September 2023.

How much traffic does Clarkson Street over Little Dry Creek carry?

About 3,616 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Clarkson Street over Little Dry Creek?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 54 ft wide.

Who owns Clarkson Street over Little Dry Creek?

It is owned by the City or Municipal Highway Agency.