US Bridges

Old B 10; FAP 031 over Julian Wash

Good

Pima County, Arizona · 0.4 MI S JCT Ajo Way · Structure no. 10358

Built
1965
60 years old
Condition
Good
inspected April 2023
Type
Channel Beam
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
9,783
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old B 10; FAP 031 over Julian Wash is a prestressed concrete channel beam carrying Old B 10; FAP 031 over Julian Wash in Pima County, Arizona. It was built in 1965, so it is 60 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 9,783 vehicles a day, roughly 5% of them trucks, projected to reach 9,793 by 2042. The structure is 60 ft (18.3 m) long and 95 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesOld B 10; FAP 031
CrossesJulian Wash
Location0.4 MI S JCT Ajo Way
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.1737, -110.9482
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating24 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span59 ft (18 m)
Deck width95 ft (29 m)
Roadway width72 ft (22 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,783 (2023)
Projected traffic9,793 by 2042
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Old B 10; FAP 031 over Julian Wash built?

It was built in 1965, making it 60 years old in 2025.

What condition is Old B 10; FAP 031 over Julian 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 April 2023.

How much traffic does Old B 10; FAP 031 over Julian Wash carry?

About 9,783 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Old B 10; FAP 031 over Julian Wash?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 95 ft wide.

Who owns Old B 10; FAP 031 over Julian Wash?

It is owned by the City or Municipal Highway Agency.