US Bridges

I 10; WB over Gonzales Wash

Good

La Paz County, Arizona · 10.7 MI W JCT SR 95 · Structure no. 05367

Built
1950
75 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete Continuous
Length
74 ft
5 main spans
Daily traffic
12,020
2022 count
Owner
State
State Highway Agency

About this bridge

I 10; WB over Gonzales Wash is a concrete continuous culvert carrying I 10; WB over Gonzales Wash in La Paz County, Arizona. It was built in 1950, so it is 75 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 12,020 vehicles a day, roughly 49% of them trucks, projected to reach 12,030 by 2042. The structure is 74 ft (22.6 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 10; WB
CrossesGonzales Wash
Location10.7 MI W JCT SR 95
RouteInterstate 10
StateArizona
Coordinates33.6355, -114.3964
Functional classRural Principal Arterial - Interstate

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 inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span12 ft (3.7 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,020 (2022)
Projected traffic12,030 by 2042
Trucks49%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I 10; WB over Gonzales Wash built?

It was built in 1950, making it 75 years old in 2025.

What condition is I 10; WB over Gonzales 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 January 2024.

How much traffic does I 10; WB over Gonzales Wash carry?

About 12,020 vehicles per day (2022 count), of which roughly 49% are trucks.

How long is I 10; WB over Gonzales Wash?

The structure is 74 ft (22.6 m) long with a longest span of 12 ft (3.7 m) and a deck 42 ft wide.

Who owns I 10; WB over Gonzales Wash?

It is owned by the State Highway Agency.