US Bridges

I 17; NB over Moores Gulch

Fair

Maricopa County, Arizona · 14.2 MI N JCT SR 74 · Structure no. 00967

Built
1967
58 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
195 ft
3 main spans
Daily traffic
22,616
2023 count
Owner
State
State Highway Agency

About this bridge

I 17; NB over Moores Gulch is a steel continuous stringer/multi-beam or girder carrying I 17; NB over Moores Gulch in Maricopa County, Arizona. It was built in 1967, so it is 58 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 22,616 vehicles a day, roughly 14% of them trucks, projected to reach 22,626 by 2042. The structure is 195 ft (59.4 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 17; NB
CrossesMoores Gulch
Location14.2 MI N JCT SR 74
RouteInterstate 17
CountyMaricopa County
StateArizona
Coordinates33.9995, -112.134
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length195 ft (59.4 m)
Longest span73 ft (22.3 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,616 (2023)
Projected traffic22,626 by 2042
Trucks14%
Lanes on structure2
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; NB over Moores Gulch built?

It was built in 1967, making it 58 years old in 2025.

What condition is I 17; NB over Moores Gulch 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 August 2023.

How much traffic does I 17; NB over Moores Gulch carry?

About 22,616 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I 17; NB over Moores Gulch?

The structure is 195 ft (59.4 m) long with a longest span of 73 ft (22.3 m) and a deck 40 ft wide.

Who owns I 17; NB over Moores Gulch?

It is owned by the State Highway Agency.