US Bridges

US 40 Ml over Sage Creek

Good

Routt County, Colorado · 5 Mi. E of Hayden · Structure no. C-08-F

Built
2015
10 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
5,100
2020 count
Owner
State
State Highway Agency

About this bridge

US 40 Ml over Sage Creek is a concrete culvert carrying US 40 Ml over Sage Creek in Routt County, Colorado. It was built in 2015, so it is 10 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 5,100 vehicles a day, roughly 12% of them trucks, projected to reach 6,018 by 2040. The structure is 20 ft (6.1 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 40 Ml
CrossesSage Creek
Location5 Mi. E of Hayden
RouteU.S. Route 40A
Coordinates40.48802, -107.16276
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating52.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,100 (2020)
Projected traffic6,018 by 2040
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Sage Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is US 40 Ml over Sage Creek 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 April 2024.

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

About 5,100 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is US 40 Ml over Sage Creek?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 52 ft wide.

Who owns US 40 Ml over Sage Creek?

It is owned by the State Highway Agency.