US Bridges

US 285 Ml over Kipling Parkway

Good

Jefferson County, Colorado · 1.5 MI W of JCT SH 121 · Structure no. F-16-RP

Built
1991
34 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
212 ft
2 main spans
Daily traffic
35,000
2020 count
Owner
State
State Highway Agency

About this bridge

US 285 Ml over Kipling Parkway is a prestressed concrete continuous box beam or girders - single or spread carrying US 285 Ml over Kipling Parkway in Jefferson County, Colorado. It was built in 1991, so it is 34 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 35,000 vehicles a day, roughly 2% of them trucks, projected to reach 44,100 by 2040. The structure is 212 ft (64.5 m) long and 118 ft wide.

CarriesUS 285 Ml
CrossesKipling Parkway
Location1.5 MI W of JCT SH 121
RouteU.S. Route 285D
Coordinates39.654, -105.10914
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.5 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length212 ft (64.5 m)
Longest span110 ft (33.6 m)
Deck width118 ft (36 m)
Roadway width112 ft (34.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,000 (2020)
Projected traffic44,100 by 2040
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Kipling Parkway built?

It was built in 1991, making it 34 years old in 2025.

What condition is US 285 Ml over Kipling Parkway 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 May 2023.

How much traffic does US 285 Ml over Kipling Parkway carry?

About 35,000 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is US 285 Ml over Kipling Parkway?

The structure is 212 ft (64.5 m) long with a longest span of 110 ft (33.6 m) and a deck 118 ft wide.

Who owns US 285 Ml over Kipling Parkway?

It is owned by the State Highway Agency.