US Bridges

US 85ML over Little Dry Creek

Fair

Arapahoe County, Colorado · S. Side of Dartmouth Ave · Structure no. F-16-JI

Built
1977
48 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
48 ft
3 main spans
Daily traffic
78,000
2020 count
Owner
State
State Highway Agency

About this bridge

US 85ML over Little Dry Creek is a concrete culvert carrying US 85ML over Little Dry Creek in Arapahoe County, Colorado. It was built in 1977, so it is 48 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 78,000 vehicles a day, roughly 8% of them trucks, projected to reach 97,500 by 2040. The structure is 48 ft (14.6 m) long and 167 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 85ML
CrossesLittle Dry Creek
LocationS. Side of Dartmouth Ave
RouteU.S. Route 85B
Coordinates39.65984, -104.99863
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
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 rating87.4 US tons
Inventory rating48.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span16 ft (5 m)
Deck width167 ft (51 m)
Roadway width154 ft (46.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78,000 (2020)
Projected traffic97,500 by 2040
Trucks8%
Lanes on structure11
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 85ML over Little Dry Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is US 85ML 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 2024.

How much traffic does US 85ML over Little Dry Creek carry?

About 78,000 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is US 85ML over Little Dry Creek?

The structure is 48 ft (14.6 m) long with a longest span of 16 ft (5 m) and a deck 167 ft wide.

Who owns US 85ML over Little Dry Creek?

It is owned by the State Highway Agency.