US Bridges

15th Street over Grand Valley Canal

Good

Mesa County, Colorado · .1 MI S of Wellington Ave · Structure no. GRJ-27.3-E.7

Built
1984
41 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
7,210
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

15th Street over Grand Valley Canal is a steel stringer/multi-beam or girder carrying 15th Street over Grand Valley Canal in Mesa County, Colorado. It was built in 1984, so it is 41 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,210 vehicles a day, roughly 5% of them trucks, projected to reach 8,436 by 2042. The structure is 51 ft (15.4 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries15th Street
CrossesGrand Valley Canal
Location.1 MI S of Wellington Ave
RouteCity Street 0
Coordinates39.08841, -108.54775
Functional classUrban Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating32.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length51 ft (15.4 m)
Longest span47 ft (14.3 m)
Deck width45 ft (13.8 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,210 (2022)
Projected traffic8,436 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 15th Street over Grand Valley Canal built?

It was built in 1984, making it 41 years old in 2025.

What condition is 15th Street over Grand Valley 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 February 2024.

How much traffic does 15th Street over Grand Valley Canal carry?

About 7,210 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is 15th Street over Grand Valley Canal?

The structure is 51 ft (15.4 m) long with a longest span of 47 ft (14.3 m) and a deck 45 ft wide.

Who owns 15th Street over Grand Valley Canal?

It is owned by the City or Municipal Highway Agency.