US Bridges

I 17; SB over Deadman Wash

Fair

Maricopa County, Arizona · 3.0 MI North JCT SR 74 · Structure no. 00304

Built
1948
77 years old, rebuilt 2010
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
130 ft
4 main spans
Daily traffic
33,470
2020 count
Owner
State
State Highway Agency

About this bridge

I 17; SB over Deadman Wash is a concrete continuous slab carrying I 17; SB over Deadman Wash in Maricopa County, Arizona. It was built in 1948 and reconstructed in 2010, so it is 77 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 33,470 vehicles a day, roughly 10% of them trucks, projected to reach 33,480 by 2040. The structure is 130 ft (39.6 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 17; SB
CrossesDeadman Wash
Location3.0 MI North JCT SR 74
RouteInterstate 17
CountyMaricopa County
StateArizona
Coordinates33.8402, -112.1443
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span35 ft (10.7 m)
Deck width63 ft (19.3 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,470 (2020)
Projected traffic33,480 by 2040
Trucks10%
Lanes on structure3
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 Deadman Wash built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 2010.

What condition is I 17; SB over Deadman 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 June 2024.

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

About 33,470 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is I 17; SB over Deadman Wash?

The structure is 130 ft (39.6 m) long with a longest span of 35 ft (10.7 m) and a deck 63 ft wide.

Who owns I 17; SB over Deadman Wash?

It is owned by the State Highway Agency.