Maricopa County, AZ

2,203 public highway bridges

Maricopa County Bridge Snapshot

Maricopa County, Arizona contains 2,203 public highway bridges in the FHWA National Bridge Inventory. Roughly 53.9% are rated “Good,” 24% “Fair,” 0.1% “Poor,” and 0.1% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in AZ are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

2,203
Total Bridges
53.9%
Good
0.1%
Poor
0.1%
Structurally Deficient

Condition Distribution

Good
53.9% (1,187)
Fair
24% (529)
Poor
0.1% (3)
SD
0.1% (3)

All Bridges (2,203)

83rd Avenue

Fair

Over: Skunk Creek

0.8 mi N T-bird Rd, Maricopa, AZ

Built 1990 Load: 32.7 t ADT: 20,313

59th Avenue

Fair

Over: Az Cnl Diversion Channel

0.2 mi S Jct Thndrbird Rd, Maricopa, AZ

Built 1984 Load: 32.7 t ADT: 19,136

Thunderbird Road

Fair

Over: AZ Cnl Diversion Channel

0.1 mi W Jct 59th Ave, Maricopa, AZ

Built 1984 Load: 32.7 t ADT: 28,315

McDowell Road

Fair

Over: Agua Fria River

0.75 mi E of Dysart Rd, Maricopa, AZ

Built 1985 Load: 32.7 t ADT: 38,700

Circle Mtn Road

Fair

Over: Wash

0.6 mi E/ New River Rd, Maricopa, AZ

Built 1996 Load: 32.7 t ADT: 4,130

Indian School Rd

Fair

Over: Indian Bend Wash

0.2 mi W Jct Hayden Rd, Maricopa, AZ

Built 1978 Load: 32.7 t ADT: 18,010

75th Avenue

Fair

Over: Skunk Creek

0.1 mi S Bell Road, Maricopa, AZ

Built 2000 Load: 32.7 t ADT: 22,043

Scottsdale Road

Fair

Over: Indian Bend Wash

at Jct w/McCormick Pkwy, Maricopa, AZ

Built 2004 Load: 32.7 t ADT: 39,600

Mountain View Road

Fair

Over: Wash & Golf Path

0.3 mi W Jct Hayden Rd, Maricopa, AZ

Built 1983 Load: 32.7 t ADT: 10,100

Copperhead Trl

Fair

Over: Dry Wash

Copperhead Trl E/O Gambit, Maricopa, AZ

Built 2010 Load: 32.7 t ADT: 1,190

36th Street

Fair

Over: Tempe Drain

0.02 mi S of Elwood St, Maricopa, AZ

Built 1978 Load: 32.7 t ADT: 1,500

ACCESS ROAD

Fair

Over: DYSART DRAINAGE DITCH

0.5 MI NW OF NORTH GATE, Maricopa, AZ

Built 1994 Load: 32.7 t ADT: 10

Thunderbird Road

Fair

Over: Sweetwater Wash

0.7 mi E of 19th Avenue, Maricopa, AZ

Built 1974 Load: 32.8 t ADT: 33,403

Dysart Rd-FAS 547

Fair

Over: Colter Channel

0.25 mi N/ Camelback Rd, Maricopa, AZ

Built 1994 Load: 32.9 t ADT: 18,985

43rd Avenue

Fair

Over: Grand Canal

0.05 mi N of Osborn Road, Maricopa, AZ

Built 1965 Load: 33.2 t ADT: 37,334

Perryville Rd

Fair

Over: RID Canal

0.25 mi S/ Van Buren, Maricopa, AZ

Built 1972 Load: 33.3 t ADT: 3,932

S 10th Street

Fair

Over: Western Canal

0.1 mi N of Baseline Rd, Maricopa, AZ

Built 1974 Load: 33.3 t ADT: 1,603

Dunlap Avenue

Fair

Over: Arizona Canal

0.13 mi E of 7th Street, Maricopa, AZ

Built 1965 Load: 33.3 t ADT: 29,095

I-8 WB

Fair

Over: Sand Tanks Wash

1.8 mi E Jct SR 85, Maricopa, AZ

Built 1965 Load: 33.6 t ADT: 4,588

US 60

Fair

Over: RWCD Canal

15.4 mi E Jct I-10, Maricopa, AZ

Built 1984 Load: 33.6 t ADT: 179,483

51st Avenue

Fair

Over: CAP Canal

1.80 mi N of Happy Valley, Maricopa, AZ

Built 1979 Load: 33.6 t ADT: 5

Crozier Rd

Fair

Over: CAP Canal

0.96 mi S of Patton Road, Maricopa, AZ

Built 1981 Load: 33.6 t ADT: 25

Pebble Creek Pkwy

Fair

Over: RID Canal

0.4 mi N of McDowell, Maricopa, AZ

Built 1983 Load: 33.6 t ADT: 10,546

Miller Rd

Fair

Over: RID Canal

0.5 mi N/ Broadway, Maricopa, AZ

Built 1961 Load: 33.6 t ADT: 15,585

Royal Oak Rd

Fair

Over: Drainage Ditch

at 99th Avenue Median, Maricopa, AZ

Built 1972 Load: 33.6 t ADT: 3,000

Broadway Road

Fair

Over: RWCD Floodway

0.4 mi E Jct Higley Rd, Maricopa, AZ

Built 1984 Load: 33.6 t ADT: 16,459

67th Avenue

Fair

Over: Az Cnl Diversion Channel

0.2 mi S Jct Greenway Rd, Maricopa, AZ

Built 1985 Load: 33.6 t ADT: 24,723

75th Avenue

Fair

Over: AZ Canal Diversion Chnl

0.4 mi S Jct Bell Rd, Maricopa, AZ

Built 1985 Load: 33.6 t ADT: 20,792

Guadalupe Road

Fair

Over: Consolidated Canal

0.1 mi East of Lindsay Rd, Maricopa, AZ

Built 1987 Load: 33.6 t ADT: 19,587

21st Way

Fair

Over: Dry Wash

0.04 mi N of Vista Bonita, Maricopa, AZ

Built 2002 Load: 33.6 t ADT: 250

Deer Valley Rd

Fair

Over: Agua Fria River

2 mi/E of El Mirage, Maricopa, AZ

Built 2022 Load: 33.8 t ADT: 4,299

Spanish Garden Dr

Fair

Over: Drainage Ditch

170' E/ 132nd Ave, Maricopa, AZ

Built 1979 Load: 33.9 t ADT: 1,697

Olive Ave

Fair

Over: Agua Fria River

0.5 mi E/ El Mirage Rd, Maricopa, AZ

Built 1987 Load: 33.9 t ADT: 17,059

Johnson Rd

Fair

Over: RID Canal

0.17 mi N/ Broadway, Maricopa, AZ

Built 1983 Load: 34.0 t ADT: 598

Crismon Rd

Fair

Over: CAP Canal

500' N/ Apache Trail, Maricopa, AZ

Built 1983 Load: 34.4 t ADT: 9,325

Maintenance road

Fair

Over: CAP Canal

0.1 mi North of FLR Rd., Maricopa, AZ

Built 1978 Load: 34.5 t ADT: 10

SR 85

Fair

Over: Gila River

6.8 mi S Jct I-10, Maricopa, AZ

Built 1995 Load: 34.5 t ADT: 7,034

SR 87

Fair

Over: Cottonwood Basin

12.7 mi S Jct SR 188, Maricopa, AZ

Built 1998 Load: 34.5 t ADT: 15,062

I 10; EB & WB

Fair

Over: Wash

21.1 mi West of Jct SR 85, Maricopa, AZ

Built 1970 Load: 34.5 t ADT: 24,509

Sun Valley Pkwy-22

Fair

Over: Wash

5.4 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 34.5 t ADT: 724

Williams Field Rd

Fair

Over: E Maricopa Fldwy

500' E/ Power Rd, Maricopa, AZ

Built 1981 Load: 34.5 t ADT: 10,294

Central Avenue

Fair

Over: Western Canal

Central Av N Of Baseline, Maricopa, AZ

Built 1974 Load: 34.5 t ADT: 24,048

Indian School Rd

Fair

Over: Indian Bend Wash

0.02 mi W of Hayden Rd, Maricopa, AZ

Built 1929 Load: 34.5 t ADT: 39,107

Bush Hwy

Fair

Over: Spook Hill Fldwy

3.2 mi N/ McDowell Rd, Maricopa, AZ

Built 1962 Load: 34.5 t ADT: 5,036

Broadway Rd

Fair

Over: CAP Canal

0.5 mi E Jct Crismon Rd, Maricopa, AZ

Built 1985 Load: 34.5 t ADT: 10,617

40th Street

Fair

Over: Tempe Drain

0.42 mi S of University, Maricopa, AZ

Built 1978 Load: 34.5 t ADT: 13,294

Mayo Blvd

Fair

Over: Dry Wash

W/of 37th Pl, Maricopa, AZ

Built 2007 Load: 34.6 t ADT: 3,367

Sun Valley Pkwy-68

Fair

Over: Wash

18.9 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 34.7 t ADT: 9,729

Sun Valley Pkwy-06

Fair

Over: Wash

2.0 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 35.4 t ADT: 724

Sun Valley Pkwy-08

Fair

Over: Wash

2.6 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 35.4 t ADT: 724

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

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial