US Bridges

I-10 over Julian Wash

Fair

Pima County, Arizona · 1.3 MI E JCT SR B10 · Structure no. 05555

Built
1967
58 years old
Condition
Fair
inspected December 2021
Type
Culvert
Concrete Continuous
Length
74 ft
6 main spans
Daily traffic
70,636
2020 count
Owner
State
State Highway Agency

About this bridge

I-10 over Julian Wash is a concrete continuous culvert carrying I-10 over Julian Wash in Pima County, Arizona. It was built in 1967, so it is 58 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 70,636 vehicles a day, roughly 31% of them trucks, projected to reach 70,646 by 2040. The structure is 74 ft (22.6 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI-10
CrossesJulian Wash
Location1.3 MI E JCT SR B10
RouteInterstate 10
CountyPima County
StateArizona
Coordinates32.1515, -110.899
Functional classUrban Principal Arterial - Interstate

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 inspectionDecember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans6
Design loadHS 20
Structure length74 ft (22.6 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 traffic70,636 (2020)
Projected traffic70,646 by 2040
Trucks31%
Lanes on structure4
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-10 over Julian Wash built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-10 over Julian 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 December 2021.

How much traffic does I-10 over Julian Wash carry?

About 70,636 vehicles per day (2020 count), of which roughly 31% are trucks.

How long is I-10 over Julian Wash?

The structure is 74 ft (22.6 m) long with a longest span of 10 ft (3 m).

Who owns I-10 over Julian Wash?

It is owned by the State Highway Agency.