Maricopa County, AZ

2,203 public highway bridges

Maricopa County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Maricopa County, Arizona contains 2,203 public highway bridges. Roughly 53.9% are rated “Good,” 24% “Fair,” and 0.1% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

2,203

Total Bridges

53.9%

Good

24%

Fair

0.1%

Poor Condition

Condition Distribution

Good

53.9% (1,187)

Fair

24% (529)

Poor

0.1% (3)

All Bridges (2,203)

Sort:

27th Avenue

Over: Grand Canal

0.16 mi N of Osborn Road, Maricopa, AZ

Built 1975 Load: 29.4 t ADT: 31,022

Cashman Dr

Over: West Wash

Cashman Dr E/O 41 St, Maricopa, AZ

Built 1997 Load: 29.4 t ADT: 3,000

Pathfinder Dr

Over: East Wash

Pathfinder Dr W/O 46 Pl, Maricopa, AZ

Built 1997 Load: 29.5 t ADT: 2,943

Trailblazer Dr

Over: East Wash

Trailblazer Dr W/O 46 Pl, Maricopa, AZ

Built 1997 Load: 29.5 t ADT: 1,733

Bethany Home Rd

Over: Wash

200' E of 125th Ave, Maricopa, AZ

Built 2004 Load: 29.5 t ADT: 3,036

32nd Street

Over: Grand Canal

0.15 mi S of McDowell, Maricopa, AZ

Built 1965 Load: 29.7 t ADT: 42,438

Thunderbird Road

Over: Cave Creek

0.19 mi E of 23rd Ave, Maricopa, AZ

Built 1965 Load: 29.7 t ADT: 40,125

Brown Rd

Over: RWCD Canal

0.2 mi E of Greenfield, Maricopa, AZ

Built 1976 Load: 29.9 t ADT: 19,152

Bell Road

Over: Skunk Creek

0.1 mi E Jct 75th Ave, Maricopa, AZ

Built 1964 Load: 29.9 t ADT: 38,132

Val Vista Drive

Over: Eastern Canal

0.2 mi N of Main Street, Maricopa, AZ

Built 1959 Load: 29.9 t ADT: 22,875

Hayden Road

Over: Arizona Canal

0.2 mi S Indian Bend Rd, Maricopa, AZ

Built 1975 Load: 29.9 t ADT: 27,206

McDonald Drive

Over: Indian Bend Wash

0.03 mi W of Hayden Rd, Maricopa, AZ

Built 1975 Load: 29.9 t ADT: 10,050

McDowell Road EB

Over: Indian Bend Wash

0.1 mi E of Jct Miller Rd, Maricopa, AZ

Built 1974 Load: 29.9 t ADT: 36,841

Chaparral Road

Over: Arizona Canal

0.1 mi West Jct Miller Rd, Maricopa, AZ

Built 1974 Load: 29.9 t ADT: 32,028

Hardy Drive

Over: Western Canal

0.6 mi S Southern Ave, Maricopa, AZ

Built 1975 Load: 29.9 t ADT: 12,669

Stapley Drive

Over: Consolidated Canal

0.1 mi S Jct Brown Rd, Maricopa, AZ

Built 1964 Load: 29.9 t ADT: 19,661

Gilbert Road

Over: Consolidated Canal

0.2 mi S Jct University, Maricopa, AZ

Built 1965 Load: 29.9 t ADT: 30,481

12TH STREET

Over: Grand Canal

.4 MI N IND.SCH.RD, Maricopa, AZ

Built 1965 Load: 30.2 t ADT: 9,842

Indian School Rd

Over: Indian Bend Wash

0.12 mi E of 78th Street, Maricopa, AZ

Built 1978 Load: 30.8 t ADT: 20,849

Mayo Employee Entr

Over: Drainage Channel

0.01 mi E of 56th Street, Maricopa, AZ

Built 2010 Load: 31.1 t ADT: 2,500

MC-85 Hwy

Over: Agua Fria River

0.5 mi W/ El Mirage, Maricopa, AZ

Built 1973 Load: 31.2 t ADT: 17,466

29th Avenue

Over: AZ Canal Div Channel

South of Metro Center, Maricopa, AZ

Built 1985 Load: 31.6 t ADT: 5,000

35th Avenue

Over: Grand Canal

0.07 mi N of Osborn Rd, Maricopa, AZ

Built 1971 Load: 31.6 t ADT: 31,602

56 Street

Over: Reach 11

0.25 Mi N of CAP Canal, Maricopa, AZ

Built 1999 Load: 31.6 t ADT: 18,598

ACCESS ROAD

Over: DYSART DRAINAGE DITCH

0.3 MILES NORTH OF NORTH, Maricopa, AZ

Built 1994 Load: 31.7 t ADT: 10

US 60

Over: Wash

7.2 mi W Jct SR 71, Maricopa, AZ

Built 1934 Load: 31.8 t ADT: 1,673

I 8

Over: Wash

1.9 mi E Jct SR 85, Maricopa, AZ

Built 1970 Load: 31.8 t ADT: 2,825

Sun Valley Pkwy-11

Over: Wash

3.3 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 31.8 t ADT: 724

Sun Valley Pkwy-21

Over: Wash

5.1 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 31.8 t ADT: 724

Sun Valley Pkwy-33

Over: Wash

7.3 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 31.8 t ADT: 933

Sun Valley Pkwy-34

Over: Wash

7.4 mi N/ McDowell Rd., Maricopa, AZ

Built 1989 Load: 31.8 t ADT: 933

Ellsworth Road

Over: Wash

400' S/ University, Maricopa, AZ

Built 1992 Load: 31.8 t ADT: 7,566

N Old Gilbert Road

Over: Eastern Canal

0.1 mi E Jct Gilbert Rd, Maricopa, AZ

Built 1972 Load: 31.8 t ADT: 2,482

Ft McDowell Rd

Over: Wash

2.25 mi N/ SR 87, Maricopa, AZ

Built 1958 Load: 31.8 t ADT: 863

163rd Avenue

Over: HaydenRhodes CAP Aqueduc

5 mi N/ US 60_Grand Ave, Maricopa, AZ

Built 1979 Load: 31.8 t ADT: 2,622

Cholla Street

Over: Drainage Channel

at Jct N 94th Way, Maricopa, AZ

Built 1975 Load: 31.8 t ADT: 1,450

Signal Butte Rd

Over: Drainage Ditch

N/ Broadway Rd, Maricopa, AZ

Built 1987 Load: 31.8 t ADT: 13,082

Dobson Road

Over: Western Canal

1/2 mi N Elliot, Maricopa, AZ

Built 1969 Load: 31.8 t ADT: 22,680

Gold Dust

Over: Drain Channel

Gold Dust & 64th St, Maricopa, AZ

Built 1973 Load: 31.8 t ADT: 1,250

Shea Blvd

Over: Floodway

Shea Blvd @ 64th St, Maricopa, AZ

Built 1956 Load: 31.8 t ADT: 43,700

Turquoise

Over: Floodway

Turquoise & 64th St, Maricopa, AZ

Built 1973 Load: 31.8 t ADT: 1,250

Cactus Road

Over: Drainage Ditch

100' W of 84th Street, Maricopa, AZ

Built 1979 Load: 31.8 t ADT: 36,000

Invergordon Road

Over: Indian Bend Wash

0.3 mi S Double Tree Rd, Maricopa, AZ

Built 1977 Load: 31.8 t ADT: 5,934

Carefree Hwy

Over: Wash

250' W/ 24th St, Maricopa, AZ

Built 1985 Load: 31.8 t ADT: 16,256

Mill Ave

Over: Crosscut Canal RCB

0.10 mi N of Curry Rd, Maricopa, AZ

Built 1932 Load: 31.8 t ADT: 12,870

Constellation St

Over: Drainage Ditch

S Riggs Rd 0.5 mi W/ Higl, Maricopa, AZ

Built 1997 Load: 31.8 t ADT: 550

Williams Field Rd

Over: RWCD Canal

E/ Power Road, Maricopa, AZ

Built 1997 Load: 31.8 t ADT: 13,395

Mayo Emergency Acc

Over: Drainage channel

0.01 mi E of 56th Street, Maricopa, AZ

Built 2010 Load: 31.8 t ADT: 2,500

92nd St

Over: Channel

0.2 mi S Jct Thndrbird Rd, Maricopa, AZ

Built 1987 Load: 31.8 t ADT: 3,400

Sun Valley Pkwy-70

Over: Wash

19.1 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 31.9 t ADT: 9,729

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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Compiled by PlainBridges, Independent data publisher

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.