US Bridges

SH 145 Ml over West Dolores River

Good

Montezuma County, Colorado · 13 Miles NE of Dolores · Structure no. N-03-F

Built
1994
31 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
133 ft
2 main spans
Daily traffic
1,800
2020 count
Owner
State
State Highway Agency

About this bridge

SH 145 Ml over West Dolores River is a prestressed concrete continuous stringer/multi-beam or girder carrying SH 145 Ml over West Dolores River in Montezuma County, Colorado. It was built in 1994, so it is 31 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 1,800 vehicles a day, roughly 9% of them trucks, projected to reach 2,232 by 2040. The structure is 133 ft (40.6 m) long and 69 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSH 145 Ml
CrossesWest Dolores River
Location13 Miles NE of Dolores
RouteState Highway 145A
Coordinates37.58876, -108.35685
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.4 US tons
Inventory rating30.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length133 ft (40.6 m)
Longest span64 ft (19.5 m)
Deck width69 ft (20.9 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2020)
Projected traffic2,232 by 2040
Trucks9%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 SH 145 Ml over West Dolores River built?

It was built in 1994, making it 31 years old in 2025.

What condition is SH 145 Ml over West Dolores River 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 2023.

How much traffic does SH 145 Ml over West Dolores River carry?

About 1,800 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is SH 145 Ml over West Dolores River?

The structure is 133 ft (40.6 m) long with a longest span of 64 ft (19.5 m) and a deck 69 ft wide.

Who owns SH 145 Ml over West Dolores River?

It is owned by the State Highway Agency.