US Bridges

SB 10 over Wash

Fair

Cochise County, Arizona · 1.0 MI NW JCT I-10 · Structure no. 05226

Built
1940
85 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
43 ft
4 main spans
Daily traffic
538
2020 count
Owner
State
State Highway Agency

About this bridge

SB 10 over Wash is a concrete continuous culvert carrying SB 10 over Wash in Cochise County, Arizona. It was built in 1940, so it is 85 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 538 vehicles a day, roughly 6% of them trucks, projected to reach 548 by 2040. The structure is 43 ft (13.1 m) long and 38 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSB 10
CrossesWash
Location1.0 MI NW JCT I-10
RouteState Highway 10
CountyCochise County
StateArizona
Coordinates32.32321, -109.46522
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span10 ft (3 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic538 (2020)
Projected traffic548 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SB 10 over Wash built?

It was built in 1940, making it 85 years old in 2025.

What condition is SB 10 over Wash in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.

How much traffic does SB 10 over Wash carry?

About 538 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is SB 10 over Wash?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m) and a deck 38 ft wide.

Who owns SB 10 over Wash?

It is owned by the State Highway Agency.