US Bridges

Palo Verde Road over Small Wash

Good

Pima County, Arizona · 0.3 MI N of Valencia · Structure no. 09255

Built
1983
42 years old
Condition
Good
inspected May 2021
Type
Culvert
Concrete Continuous
Length
65 ft
6 main spans
Daily traffic
12,162
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Palo Verde Road over Small Wash is a concrete continuous culvert carrying Palo Verde Road over Small Wash in Pima County, Arizona. It was built in 1983, so it is 42 years old, younger than the Arizona average of 47.8 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 12,162 vehicles a day, roughly 5% of them trucks, projected to reach 12,172 by 2040. The structure is 65 ft (19.8 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPalo Verde Road
CrossesSmall Wash
Location0.3 MI N of Valencia
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.1384, -110.9178
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length65 ft (19.8 m)
Longest span10 ft (3 m)
Deck width77 ft (23.5 m)
Roadway width75 ft (22.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,162 (2020)
Projected traffic12,172 by 2040
Trucks5%
Lanes on structure4
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 Palo Verde Road over Small Wash built?

It was built in 1983, making it 42 years old in 2025.

What condition is Palo Verde Road over Small 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 May 2021.

How much traffic does Palo Verde Road over Small Wash carry?

About 12,162 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Palo Verde Road over Small Wash?

The structure is 65 ft (19.8 m) long with a longest span of 10 ft (3 m) and a deck 77 ft wide.

Who owns Palo Verde Road over Small Wash?

It is owned by the City or Municipal Highway Agency.