US Bridges

Yosemite Street over Willow Creek

Fair

Douglas County, Colorado · At Int of Lone Tree Pkwy · Structure no. DOU06A-01.00

Built
1985
40 years old
Condition
Fair
inspected January 2025
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
22 ft
2 main spans
Daily traffic
16,337
2022 count
Owner
County
County Highway Agency

About this bridge

Yosemite Street over Willow Creek is a aluminum, wrought iron, or cast iron culvert carrying Yosemite Street over Willow Creek in Douglas County, Colorado. It was built in 1985, so it is 40 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 16,337 vehicles a day, roughly 4% of them trucks, projected to reach 21,891 by 2042. The structure is 22 ft (6.6 m) long and 137 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesYosemite Street
CrossesWillow Creek
LocationAt Int of Lone Tree Pkwy
RouteCounty Highway 0
Coordinates39.54698, -104.88593
Functional classUrban Minor Arterial

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 inspectionJanuary 2025
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 rating110.1 US tons
Inventory rating101.6 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length22 ft (6.6 m)
Longest span9 ft (2.7 m)
Deck width137 ft (41.9 m)
Roadway width77 ft (23.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,337 (2022)
Projected traffic21,891 by 2042
Trucks4%
Lanes on structure6
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 Yosemite Street over Willow Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Yosemite Street over Willow 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 January 2025.

How much traffic does Yosemite Street over Willow Creek carry?

About 16,337 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Yosemite Street over Willow Creek?

The structure is 22 ft (6.6 m) long with a longest span of 9 ft (2.7 m) and a deck 137 ft wide.

Who owns Yosemite Street over Willow Creek?

It is owned by the County Highway Agency.