US Bridges

Anderson RD over Unnamed Wash

Good

Pinal County, Arizona · 200 Ft S JCT Maricopa HWY · Structure no. 09056

Built
1963
62 years old
Condition
Good
inspected October 2021
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
925
2021 count
Owner
County
County Highway Agency

About this bridge

Anderson RD over Unnamed Wash is a concrete continuous culvert carrying Anderson RD over Unnamed Wash in Pinal County, Arizona. It was built in 1963, so it is 62 years old, older 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 925 vehicles a day, roughly 5% of them trucks, projected to reach 935 by 2041. The structure is 21 ft (6.4 m) long and 38 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesAnderson RD
CrossesUnnamed Wash
Location200 Ft S JCT Maricopa HWY
RouteCity Street 0
CountyPinal County
StateArizona
Coordinates32.9824, -111.9291
Functional classRural Minor Collector

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 inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span8 ft (2.4 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic925 (2021)
Projected traffic935 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 Anderson RD over Unnamed Wash built?

It was built in 1963, making it 62 years old in 2025.

What condition is Anderson RD over Unnamed 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 October 2021.

How much traffic does Anderson RD over Unnamed Wash carry?

About 925 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Anderson RD over Unnamed Wash?

The structure is 21 ft (6.4 m) long with a longest span of 8 ft (2.4 m) and a deck 38 ft wide.

Who owns Anderson RD over Unnamed Wash?

It is owned by the County Highway Agency.