US Bridges

Prospector RD over Wash

Good

Pinal County, Arizona · 300 N JCT Roberts RD · Structure no. 11406

Built
2005
20 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
510
2020 count
Owner
County
County Highway Agency

About this bridge

Prospector RD over Wash is a concrete continuous culvert carrying Prospector RD over Wash in Pinal County, Arizona. It was built in 2005, so it is 20 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 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 510 vehicles a day, roughly 1% of them trucks, projected to reach 520 by 2040. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesProspector RD
CrossesWash
Location300 N JCT Roberts RD
RouteCounty Highway 0
StateArizona
Coordinates33.17706, -111.60425
Functional classRural 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.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic510 (2020)
Projected traffic520 by 2040
Trucks1%
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

OwnerCounty Highway Agency
Maintained byCounty 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 Prospector RD over Wash built?

It was built in 2005, making it 20 years old in 2025.

What condition is Prospector RD over 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 November 2021.

How much traffic does Prospector RD over Wash carry?

About 510 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Prospector RD over Wash?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns Prospector RD over Wash?

It is owned by the County Highway Agency.