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)

Sort:

I 10; EB & WB

Over: Wash

3.7 mi S of Jct US 60, Maricopa, AZ

Built 1965 Load: 38.1 t ADT: 206,711

I 10; WB

Over: Wash

27.5 mi W Jct SR 85, Maricopa, AZ

Built 1968 Load: 38.1 t ADT: 12,062

I 10; EB & WB

Over: Wash

18.3 mi West of Jct SR 85, Maricopa, AZ

Built 1970 Load: 38.1 t ADT: 24,509

Sun Valley Pkwy-38

Over: Wash

8.1 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 38.1 t ADT: 933

Hartford Drive

Over: Wash

0.2 mi S of Princess Dr, Maricopa, AZ

Built 1990 Load: 38.1 t ADT: 72

Pima Road

Over: Okie Laura Wash

0.5 mi N of Jomax Rd, Maricopa, AZ

Built 1983 Load: 38.1 t ADT: 18,600

Cooper Road

Over: Consolidated Canal

0.1 mi S of Chandler Blvd, Maricopa, AZ

Built 1986 Load: 38.1 t ADT: 9,547

Van Buren St

Over: Dickey Wash

1 mi W/ 339th Ave, Maricopa, AZ

Built 1986 Load: 38.1 t ADT: 895

Carefree Drive

Over: Waddell Canal

0.8 mi W Lake Pleasant Rd, Maricopa, AZ

Built 1987 Load: 38.1 t ADT: 39

Thomas Road

Over: Indian Bend Wash

0.3 mi E of Jct Miller Rd, Maricopa, AZ

Built 1978 Load: 38.1 t ADT: 10,537

Bell Rd

Over: Drainage Ditch

at 115th Ave, Maricopa, AZ

Built 1981 Load: 38.1 t ADT: 52,747

90th. Place

Over: Wash

200' N Jct Desert Camp Dr, Maricopa, AZ

Built 1997 Load: 38.1 t ADT: 180

Thomas Rd.

Over: Indian Bend Wash Br WB

0.3 mi E Jct Miller Rd, Maricopa, AZ

Built 1978 Load: 38.1 t ADT: 13,148

Power Road

Over: Town of Gilbert

0.17 mi S/ Queen Creek Rd, Maricopa, AZ

Built 2002 Load: 38.1 t ADT: 19,775

95th Ave

Over: Wash

@ Jct w/ Beardsley Rd, Maricopa, AZ

Built 1994 Load: 38.1 t ADT: 1,437

56th St

Over: Wash

400' S of Dynamite, Maricopa, AZ

Built 1997 Load: 38.1 t ADT: 150

Sun Valley Pkwy-59

Over: Wash

13.9 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 38.2 t ADT: 1,134

Sun Valley Pkwy-60

Over: Wash

14.2 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 38.2 t ADT: 1,134

Sonoran Desert Dr.

Over: Skunk Creek

0.25 mi E of I-17, Maricopa, AZ

Built 2012 Load: 38.2 t ADT: 4,000

7th Street

Over: CAP Canal

0.38 mi N of Pinnacle Pk, Maricopa, AZ

Built 1978 Load: 38.6 t ADT: 11,518

Sun Valley Pkwy-46

Over: Wash

10.2 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 38.9 t ADT: 933

I 17

Over: CAP Aqueduct

3.6 mi South Jct SR 74, Maricopa, AZ

Built 1977 Load: 39.0 t ADT: 98,729

I 17; E FR Rd

Over: CAP Aqueduct

3.6 mi South Jct SR 74, Maricopa, AZ

Built 1977 Load: 39.0 t ADT: 1,000

Sun Valley Pkwy-35

Over: Wash

7.4 mi N/ McDowell Rd, Maricopa, AZ

Built 1989 Load: 39.0 t ADT: 933

Mountain View Rd

Over: Drainage Ditch

20 ft N Jct Via Linda, Maricopa, AZ

Built 1983 Load: 39.0 t ADT: 6,700

Carefree Hwy

Over: Wash

at 10th St, Maricopa, AZ

Built 1985 Load: 39.0 t ADT: 17,504

Monte Vista Rd

Over: Bullard Wash

0.15 mi E PC Parkway, Maricopa, AZ

Built 2009 Load: 39.0 t ADT: 1,250

Monte Vista Rd

Over: Bullard Wash

0.15 mi E Jct PC Parkway, Maricopa, AZ

Built 2009 Load: 39.0 t ADT: 1,250

Dixileta Dr

Over: Wash

E of 67th St, Maricopa, AZ

Built 1995 Load: 39.0 t ADT: 2,000

Vulture Mine Rd

Over: Box Wash

12.5 mi N/Wickenburg Rd, Maricopa, AZ

Built 2023 Load: 39.0 t ADT: 383

7th Street

Over: Salt River

0.9 mi N of Broadway Rd, Maricopa, AZ

Built 1983 Load: 39.1 t ADT: 30,315

48th Street

Over: Dry Wash

0.24 mi S of Elliot Road, Maricopa, AZ

Built 1973 Load: 39.2 t ADT: 22,186

51st Street

Over: Dry Wash

0.02 mi N of Elliot Road, Maricopa, AZ

Built 1982 Load: 39.2 t ADT: 5,000

44TH STREET

Over: Dry Wash

N OF KNOX GOLF COURSE SE, Maricopa, AZ

Built 1978 Load: 39.2 t ADT: 8,191

S Lakewood Pkwy W

Over: Drainage Channel

0.2 mi E of 34th St, Maricopa, AZ

Built 1985 Load: 39.2 t ADT: 3,029

48th Street

Over: Grand Canal

0.37 mi S of Washington, Maricopa, AZ

Built 2004 Load: 39.7 t ADT: 200

I 8; EB

Over: Vekol Wash

29.1 mi E Jct SR 85, Maricopa, AZ

Built 1959 Load: 39.9 t ADT: 3,744

Sarival Rd

Over: RID Canal

S/ McDowell, Maricopa, AZ

Built 1977 Load: 39.9 t ADT: 10,587

107th Ave

Over: RID Canal

0.5 mi N Jct Thomas Rd, Maricopa, AZ

Built 1972 Load: 39.9 t ADT: 15,122

University Drive

Over: RWCD Floodway

0.3 mi E Jct Higley Rd, Maricopa, AZ

Built 1985 Load: 39.9 t ADT: 18,267

Greenway-Hayden Rd

Over: CAP Canal

N of Frank-Lloyd Wr, Maricopa, AZ

Built 1996 Load: 39.9 t ADT: 18,791

Thompson Peak Pkwy

Over: Wash

.35 mi S of Legacy Blvd., Maricopa, AZ

Built 2006 Load: 39.9 t ADT: 14,200

AIRPORT UPPER ROAD

Over: NONE

TERMINAL 4, Maricopa, AZ

Built 1991 Load: 40.2 t ADT: 7,150

Power Rd

Over: RWCD Canal

S/ Guadalupe Rd, Maricopa, AZ

Built 1986 Load: 40.7 t ADT: 25,655

I 17; NB

Over: Moores Gulch

14.2 mi N Jct SR 74, Maricopa, AZ

Built 1967 Load: 40.8 t ADT: 22,596

Hawes Rd

Over: Queen Creek Wash

N/ Ocotillo Rd, Maricopa, AZ

Built 1991 Load: 40.8 t ADT: 9,100

MARYLAND AVE

Over: AZ Canal Div Channel

MARYLAND AVE AT ACDC, Maricopa, AZ

Built 1991 Load: 40.8 t ADT: 2,768

90th Street

Over: Camelback Walk

0.2 mi S Mtn View Road, Maricopa, AZ

Built 1983 Load: 40.8 t ADT: 18,160

Guadalupe Road

Over: Western Canal

0.48 mi E of Kyrene Rd, Maricopa, AZ

Built 1977 Load: 40.8 t ADT: 22,188

99th Ave

Over: Drainage Ditch

250' N of Grand Ave, Maricopa, AZ

Built 1972 Load: 40.8 t ADT: 13,988

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

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026