US Bridges

US 40 Ml over Troublesome Creek

Good

Grand County, Colorado · 4.62 MI E of JCT SH9 · Structure no. D-11-Q

Built
1996
29 years old
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
109 ft
1 main span
Daily traffic
2,400
2020 count
Owner
State
State Highway Agency

About this bridge

US 40 Ml over Troublesome Creek is a prestressed concrete box beam or girders - multiple carrying US 40 Ml over Troublesome Creek in Grand County, Colorado. It was built in 1996, so it is 29 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 2,400 vehicles a day, roughly 8% of them trucks, projected to reach 2,976 by 2040. The structure is 109 ft (33.3 m) long and 42 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesUS 40 Ml
CrossesTroublesome Creek
Location4.62 MI E of JCT SH9
RouteU.S. Route 40A
Coordinates40.05877, -106.30531
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating32.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length109 ft (33.3 m)
Longest span107 ft (32.5 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2020)
Projected traffic2,976 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Troublesome Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is US 40 Ml over Troublesome 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 December 2024.

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

About 2,400 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is US 40 Ml over Troublesome Creek?

The structure is 109 ft (33.3 m) long with a longest span of 107 ft (32.5 m) and a deck 42 ft wide.

Who owns US 40 Ml over Troublesome Creek?

It is owned by the State Highway Agency.