US Bridges

I-10 over Bronx Wash

Good

Pima County, Arizona · 3.2 MI N JCT I-19 · Structure no. 07152

Built
2008
17 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete Continuous
Length
62 ft
5 main spans
Daily traffic
173,000
2020 count
Owner
State
State Highway Agency

About this bridge

I-10 over Bronx Wash is a concrete continuous culvert carrying I-10 over Bronx Wash in Pima County, Arizona. It was built in 2008, so it is 17 years old, younger 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 173,000 vehicles a day, roughly 9% of them trucks, projected to reach 173,010 by 2040. The structure is 62 ft (18.9 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesI-10
CrossesBronx Wash
Location3.2 MI N JCT I-19
RouteInterstate 10
CountyPima County
StateArizona
Coordinates32.2382, -110.9846
Functional classUrban 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 spans5
Design loadHS 20
Structure length62 ft (18.9 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 traffic173,000 (2020)
Projected traffic173,010 by 2040
Trucks9%
Lanes on structure14
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$3,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-10 over Bronx Wash built?

It was built in 2008, making it 17 years old in 2025.

What condition is I-10 over Bronx 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 November 2021.

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

About 173,000 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is I-10 over Bronx Wash?

The structure is 62 ft (18.9 m) long with a longest span of 10 ft (3 m).

Who owns I-10 over Bronx Wash?

It is owned by the State Highway Agency.