US Bridges

I-10; Nfr over Wash

Good

Pima County, Arizona · 2.5 MI W JCT SR 83 · Structure no. 06515

Built
1928
97 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
40
2021 count
Owner
State
State Highway Agency

About this bridge

I-10; Nfr over Wash is a concrete continuous culvert carrying I-10; Nfr over Wash in Pima County, Arizona. It was built in 1928, so it is 97 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 40 vehicles a day, projected to reach 50 by 2041. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI-10; Nfr
CrossesWash
Location2.5 MI W JCT SR 83
RouteState Highway 10
CountyPima County
StateArizona
Coordinates32.0313, -110.7233
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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 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 traffic40 (2021)
Projected traffic50 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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; Nfr over Wash built?

It was built in 1928, making it 97 years old in 2025.

What condition is I-10; Nfr over 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 December 2023.

How much traffic does I-10; Nfr over Wash carry?

About 40 vehicles per day (2021 count).

How long is I-10; Nfr over Wash?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns I-10; Nfr over Wash?

It is owned by the State Highway Agency.