US Bridges

SH 90 Ml over Montrose & Delta Canal

Good

Montrose County, Colorado · 4.9 MI West of Montrose · Structure no. K-05-AU

Built
1999
26 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
41 ft
1 main span
Daily traffic
300
2020 count
Owner
State
State Highway Agency

About this bridge

SH 90 Ml over Montrose & Delta Canal is a concrete slab carrying SH 90 Ml over Montrose & Delta Canal in Montrose County, Colorado. It was built in 1999, so it is 26 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 300 vehicles a day, roughly 7% of them trucks, projected to reach 393 by 2040. The structure is 41 ft (12.6 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 90 Ml
CrossesMontrose & Delta Canal
Location4.9 MI West of Montrose
RouteState Highway 90B
Coordinates38.44352, -107.92851
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating48.8 US tons
Inventory rating29.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length41 ft (12.6 m)
Longest span35 ft (10.7 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2020)
Projected traffic393 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Montrose & Delta Canal built?

It was built in 1999, making it 26 years old in 2025.

What condition is SH 90 Ml over Montrose & Delta Canal 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 March 2024.

How much traffic does SH 90 Ml over Montrose & Delta Canal carry?

About 300 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is SH 90 Ml over Montrose & Delta Canal?

The structure is 41 ft (12.6 m) long with a longest span of 35 ft (10.7 m) and a deck 42 ft wide.

Who owns SH 90 Ml over Montrose & Delta Canal?

It is owned by the State Highway Agency.