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-8 EB

Over: Painted Rock Rd

13.4 mi W Jct SR 85, Maricopa, AZ

Built 1958 ADT: 609

Jefferson Street

Over: I 17

5.6 mi N of Jct I 10, Maricopa, AZ

Built 1959 ADT: 112,314

Grant Street

Over: I 17

5.2 mi N of Jct I 10, Maricopa, AZ

Built 1959 ADT: 126,081

I-8 EB

Over: Paloma Road

9.1 mi W Jct SR 85, Maricopa, AZ

Built 1960 ADT: 494

I-8 WB

Over: Paloma Road

9.1 mi W Jct SR 85, Maricopa, AZ

Built 1960 ADT: 494

I-8 WB

Over: Citrus Valley Rd

4.2 mi W Jct SR 85, Maricopa, AZ

Built 1960 ADT: 352

SPRR

Over: I 17

5.4 mi N Jct I 10, Maricopa, AZ

Built 1960 ADT: 112,314

I 17

Over: Peoria Ave

7.3 mi N Jct US 60, Maricopa, AZ

Built 1965 ADT: 47,186

I 17

Over: Cactus Rd

8.3 mi N Jct US 60, Maricopa, AZ

Built 1965 ADT: 33,099

I 17

Over: Thunderbird Rd

9.3 mi N Jct US 60, Maricopa, AZ

Built 1965 ADT: 41,772

I 10; EB

Over: Southern Avenue

0.3 mi W Jct US 60, Maricopa, AZ

Built 1966 ADT: 28,700

I 10; NB Off Ramp

Over: I 10; WB on Ramp

01.8 mi W Jct US 60, Maricopa, AZ

Built 1965 ADT: 3,020

I 17; SB

Over: New River Road

8.0 mi N Jct SR 74, Maricopa, AZ

Built 1968 ADT: 3,690

Table Mesa Road

Over: I 17 SB

11.9 mi N Jct SR 74, Maricopa, AZ

Built 1968 ADT: 23,616

I-8 EB

Over: County Road

1.1 mi E Jct SR 85, Maricopa, AZ

Built 1965 ADT: 100

Hardy Dr

Over: US 60

0.9 mi E Jct I 10, Maricopa, AZ

Built 1969 ADT: 195,288

Pima Freeway 101L

Over: Hayden Road

5.5 mi E Jct SR 51, Maricopa, AZ

Built 2002 ADT: 28,400

SR 51 Ramp N-W

Over: L101 Ramp W-S

0.2 mi S Jct L101, Maricopa, AZ

Built 2003 ADT: 27,624

McDowell Rd.

Over: SR 202

3.75 mi N. US 60, Maricopa, AZ

Built 2001 ADT: 78,972

McDowell Rd.

Over: SR 202

3.75 mi N. US 60, Maricopa, AZ

Built 2001 ADT: 78,972

Grovers Ave

Over: SR 51

6 mi E I-17 & 1 mi S L101, Maricopa, AZ

Built 2003 ADT: 104,371

SR 51

Over: Loop 101

Jct L101, Maricopa, AZ

Built 2003 ADT: 183,852

IRR I-8 WB

Over: SR 85

Jct SR 85, Maricopa, AZ

Built 1971 ADT: 2,516

IRR I-8 EB

Over: SR 85

Jct SR 85, Maricopa, AZ

Built 1971 ADT: 2,516

339th Avenue

Over: I 10

9.31 mi West of Jct SR 85, Maricopa, AZ

Built 1974 ADT: 27,321

I 10

Over: 99th Avenue

0.2 mi W Jct SR 101L, Maricopa, AZ

Built 1981 ADT: 26,070

Mesa Drive

Over: US 60

8.40 mi E Jct I 10, Maricopa, AZ

Built 1980 ADT: 242,887

Harris Street

Over: US 60

9.90 mi E Jct I 10, Maricopa, AZ

Built 1981 ADT: 218,402

Gilbert Road

Over: US 60

10.40 mi E Jct I 10, Maricopa, AZ

Built 1981 ADT: 218,402

Longmore St

Over: US 60

6.0 mi E Jct I 10, Maricopa, AZ

Built 1978 ADT: 234,822

Alma School Road

Over: US 60

6.4mi E Jct I 10, Maricopa, AZ

Built 1978 ADT: 234,822

Extension Road

Over: US 60

6.90 mi E Jct I 10, Maricopa, AZ

Built 1978 ADT: 234,822

SR 87; Country Clu

Over: US 60

7.4 mi E Jct I 10, Maricopa, AZ

Built 1978 ADT: 241,816

24th Street

Over: US 60

0.5 mi N Jct Baseline Rd, Maricopa, AZ

Built 1983 ADT: 218,402

US 60

Over: Lindsay Road

11.37 mi E of Jct of I 10, Maricopa, AZ

Built 1983 ADT: 20,714

32nd Street

Over: US 60

11.9 mi E of Jct of I 10, Maricopa, AZ

Built 1983 ADT: 218,402

Val Vista Drive

Over: US 60

0.5 mi N Jct Baseline Rd, Maricopa, AZ

Built 1983 ADT: 218,402

39th Street

Over: US 60

12.77 mi E Jct I 10, Maricopa, AZ

Built 1984 ADT: 207,938

Power Road

Over: US 60

16.4 mi E Jct I-10, Maricopa, AZ

Built 1984 ADT: 170,442

Clearview Avenue

Over: US 60

16.75 mi E of Jct I 10, Maricopa, AZ

Built 1988 ADT: 163,560

Sossaman Road

Over: US 60

17.39 mi E of Jct I 10, Maricopa, AZ

Built 1990 ADT: 163,560

51st Avenue

Over: I 10

3.5 mi West Jct I 17, Maricopa, AZ

Built 1985 ADT: 218,948

43rd Avenue

Over: I 10

2.5 mi West Jct I 17, Maricopa, AZ

Built 1985 ADT: 242,225

39th Avenue

Over: I 10

2.0 mi West Jct I 17, Maricopa, AZ

Built 1985 ADT: 240,118

31st Avenue

Over: I 10

1.0 mi West of Jct I 17, Maricopa, AZ

Built 1985 ADT: 254,947

I 10 EB

Over: I17, Ramps, City Streets

at Jct of I 17 and I 10, Maricopa, AZ

Built 1988 ADT: 57,612

NB & SB 17-WB 10 R

Over: 25th Avenue

0.18 mi West of Jct I 17, Maricopa, AZ

Built 1986 ADT: 1,000

EB 10-SB 17 Ramp

Over: SB 17 Frontage Road

at I 17 jct, Maricopa, AZ

Built 1988 ADT: 3,011

I 17 NB Ramp

Over: I10, I17, Ramps, City St

at East Jct with I 17, Maricopa, AZ

Built 1988 ADT: 222,656

SB 17-EB 10 Rmp Lv

Over: I 17 - NB FR- M3 Ramp

Jct I 10 and I 17, Maricopa, AZ

Built 1990 ADT: 111,013

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