US Bridges

Martin Ave over Gillespie Canal

Good

Maricopa County, Arizona · 0.2 MI So JCT SR 85 · Structure no. 08695

Built
1983
42 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
1,277
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Martin Ave over Gillespie Canal is a prestressed concrete box beam or girders - multiple carrying Martin Ave over Gillespie Canal in Maricopa County, Arizona. It was built in 1983, so it is 42 years old, younger 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 1,277 vehicles a day, roughly 2% of them trucks, projected to reach 1,287 by 2042. The structure is 47 ft (14.3 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMartin Ave
CrossesGillespie Canal
Location0.2 MI So JCT SR 85
RouteCity Street 0
StateArizona
Coordinates32.9446, -112.7157
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating48 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span46 ft (14 m)
Deck width52 ft (15.8 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deck25 ft (7.6 m)

Traffic and service

Average daily traffic1,277 (2023)
Projected traffic1,287 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Martin Ave over Gillespie Canal built?

It was built in 1983, making it 42 years old in 2025.

What condition is Martin Ave over Gillespie Canal 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 February 2024.

How much traffic does Martin Ave over Gillespie Canal carry?

About 1,277 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Martin Ave over Gillespie Canal?

The structure is 47 ft (14.3 m) long with a longest span of 46 ft (14 m) and a deck 52 ft wide.

Who owns Martin Ave over Gillespie Canal?

It is owned by the Town or Township Highway Agency.