US Bridges

I 17; SB over Wash

Good

Yavapai County, Arizona · 17.8 MI N JCT SR 74 · Structure no. 05747

Built
1950
75 years old, rebuilt 1967
Condition
Good
inspected September 2022
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
17,400
2022 count
Owner
State
State Highway Agency

About this bridge

I 17; SB over Wash is a concrete continuous culvert carrying I 17; SB over Wash in Yavapai County, Arizona. It was built in 1950 and reconstructed in 1967, so it is 75 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 17,400 vehicles a day, roughly 26% of them trucks, projected to reach 17,410 by 2042. The structure is 24 ft (7.3 m) long and 143 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 17; SB
CrossesWash
Location17.8 MI N JCT SR 74
RouteInterstate 17
CountyYavapai County
StateArizona
Coordinates34.0495, -112.1483
Functional classRural 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2022
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 spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width143 ft (43.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,400 (2022)
Projected traffic17,410 by 2042
Trucks26%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 17; SB over Wash built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1967.

What condition is I 17; SB 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 September 2022.

How much traffic does I 17; SB over Wash carry?

About 17,400 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is I 17; SB over Wash?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 143 ft wide.

Who owns I 17; SB over Wash?

It is owned by the State Highway Agency.