US Bridges

I-10; Nfr over Wash

Fair

Pima County, Arizona · 3.8 MI W JCT SR 83 · Structure no. 01020

Built
1929
96 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
66 ft
3 main spans
Daily traffic
260
2023 count
Owner
State
State Highway Agency

About this bridge

I-10; Nfr over Wash is a concrete slab carrying I-10; Nfr over Wash in Pima County, Arizona. It was built in 1929, so it is 96 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 260 vehicles a day, roughly 1% of them trucks, projected to reach 270 by 2042. The structure is 66 ft (20.1 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-10; Nfr
CrossesWash
Location3.8 MI W JCT SR 83
RouteState Highway 10
CountyPima County
StateArizona
Coordinates32.04241, -110.73944
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span22 ft (6.7 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2023)
Projected traffic270 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 1929, making it 96 years old in 2025.

What condition is I-10; Nfr 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 2024.

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

About 260 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is I-10; Nfr over Wash?

The structure is 66 ft (20.1 m) long with a longest span of 22 ft (6.7 m) and a deck 27 ft wide.

Who owns I-10; Nfr over Wash?

It is owned by the State Highway Agency.