US Bridges

SH 90 Ml over Dolores River

Good

Montrose County, Colorado · 0.4 MI E of Bedrock · Structure no. K-01-L

Built
2017
8 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
131 ft
1 main span
Daily traffic
340
2020 count
Owner
State
State Highway Agency

About this bridge

SH 90 Ml over Dolores River is a prestressed concrete tee beam carrying SH 90 Ml over Dolores River in Montrose County, Colorado. It was built in 2017, so it is 8 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 340 vehicles a day, roughly 13% of them trucks, projected to reach 483 by 2040. The structure is 131 ft (39.9 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 90 Ml
CrossesDolores River
Location0.4 MI E of Bedrock
RouteState Highway 90A
Coordinates38.31065, -108.88578
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating67.9 US tons
Inventory rating42.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length131 ft (39.9 m)
Longest span118 ft (36 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2020)
Projected traffic483 by 2040
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 90 Ml over Dolores River built?

It was built in 2017, making it 8 years old in 2025.

What condition is SH 90 Ml over 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 90 Ml over Dolores River carry?

About 340 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is SH 90 Ml over Dolores River?

The structure is 131 ft (39.9 m) long with a longest span of 118 ft (36 m) and a deck 39 ft wide.

Who owns SH 90 Ml over Dolores River?

It is owned by the State Highway Agency.