US Bridges

18.5 Road over Little Salt Wash

Good

Mesa County, Colorado · 0.1 South of RD L · Structure no. FRT-18.5-K.99B

Built
2021
4 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
531
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

18.5 Road over Little Salt Wash is a concrete culvert carrying 18.5 Road over Little Salt Wash in Mesa County, Colorado. It was built in 2021, so it is 4 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 531 vehicles a day, projected to reach 802 by 2038. The structure is 40 ft (12.2 m) long and 89 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries18.5 Road
CrossesLittle Salt Wash
Location0.1 South of RD L
RouteCity Street 0
Coordinates39.17786, -108.7105
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
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 rating74.6 US tons
Inventory rating57.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length40 ft (12.2 m)
Longest span12 ft (3.6 m)
Deck width89 ft (27.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic531 (2018)
Projected traffic802 by 2038
Trucks0%
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

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 18.5 Road over Little Salt Wash built?

It was built in 2021, making it 4 years old in 2025.

What condition is 18.5 Road over Little Salt Wash 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 18.5 Road over Little Salt Wash carry?

About 531 vehicles per day (2018 count).

How long is 18.5 Road over Little Salt Wash?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.6 m) and a deck 89 ft wide.

Who owns 18.5 Road over Little Salt Wash?

It is owned by the City or Municipal Highway Agency.