US Bridges

US 285 Ml over Wildlife Crossing

Good

Jefferson County, Colorado · Near Conifer · Structure no. F-15-DL

Built
2009
16 years old
Condition
Good
inspected August 2023
Type
Culvert
Steel
Length
25 ft
1 main span
Daily traffic
19,000
2020 count
Owner
State
State Highway Agency

About this bridge

US 285 Ml over Wildlife Crossing is a steel culvert carrying US 285 Ml over Wildlife Crossing in Jefferson County, Colorado. It was built in 2009, so it is 16 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 19,000 vehicles a day, roughly 4% of them trucks, projected to reach 22,420 by 2040. The structure is 25 ft (7.7 m) long and 108 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 285 Ml
CrossesWildlife Crossing
LocationNear Conifer
RouteU.S. Route 285D
Coordinates39.50088, -105.33129
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating61.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHL 93
Structure length25 ft (7.7 m)
Longest span25 ft (7.7 m)
Deck width108 ft (32.9 m)
Roadway width100 ft (30.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,000 (2020)
Projected traffic22,420 by 2040
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 285 Ml over Wildlife Crossing built?

It was built in 2009, making it 16 years old in 2025.

What condition is US 285 Ml over Wildlife Crossing in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does US 285 Ml over Wildlife Crossing carry?

About 19,000 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is US 285 Ml over Wildlife Crossing?

The structure is 25 ft (7.7 m) long with a longest span of 25 ft (7.7 m) and a deck 108 ft wide.

Who owns US 285 Ml over Wildlife Crossing?

It is owned by the State Highway Agency.