US Bridges

US 40 Ml over Dry Creek

Fair

Routt County, Colorado · In Hayden · Structure no. C-07-S

Built
1992
33 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
46 ft
4 main spans
Daily traffic
4,200
2020 count
Owner
State
State Highway Agency

About this bridge

US 40 Ml over Dry Creek is a concrete culvert carrying US 40 Ml over Dry Creek in Routt County, Colorado. It was built in 1992, so it is 33 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 4,200 vehicles a day, roughly 8% of them trucks, projected to reach 4,704 by 2040. The structure is 46 ft (13.9 m) long and 62 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 40 Ml
CrossesDry Creek
LocationIn Hayden
RouteU.S. Route 40A
Coordinates40.494, -107.2676
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.7 US tons
Inventory rating44.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length46 ft (13.9 m)
Longest span10 ft (3 m)
Deck width62 ft (18.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2020)
Projected traffic4,704 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 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 40 Ml over Dry Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is US 40 Ml over 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 April 2024.

How much traffic does US 40 Ml over Dry Creek carry?

About 4,200 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is US 40 Ml over Dry Creek?

The structure is 46 ft (13.9 m) long with a longest span of 10 ft (3 m) and a deck 62 ft wide.

Who owns US 40 Ml over Dry Creek?

It is owned by the State Highway Agency.