US Bridges

US 385 Ml over Arikaree River

Fair

Yuma County, Colorado · 6 MI N of JCT 36 · Structure no. E-28-N

Built
1986
39 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
453 ft
4 main spans
Daily traffic
720
2018 count
Owner
State
State Highway Agency

About this bridge

US 385 Ml over Arikaree River is a prestressed concrete continuous stringer/multi-beam or girder carrying US 385 Ml over Arikaree River in Yuma County, Colorado. It was built in 1986, so it is 39 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 720 vehicles a day, roughly 27% of them trucks, projected to reach 886 by 2038. The structure is 453 ft (138.2 m) long and 43 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesUS 385 Ml
CrossesArikaree River
Location6 MI N of JCT 36
RouteU.S. Route 385D
Coordinates39.83347, -102.25372
Functional classRural Principal Arterial - Other

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.3 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length453 ft (138.2 m)
Longest span113 ft (34.5 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic720 (2018)
Projected traffic886 by 2038
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 385 Ml over Arikaree River built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 385 Ml over Arikaree River 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 May 2023.

How much traffic does US 385 Ml over Arikaree River carry?

About 720 vehicles per day (2018 count), of which roughly 27% are trucks.

How long is US 385 Ml over Arikaree River?

The structure is 453 ft (138.2 m) long with a longest span of 113 ft (34.5 m) and a deck 43 ft wide.

Who owns US 385 Ml over Arikaree River?

It is owned by the State Highway Agency.