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:

East - N/S Gore

Over: 27th Avenue

SW Corner of TI, Maricopa, AZ

Built 1997 ADT: 18,013

E/W 101 to N I 17

Over: Rose Garden Ramp B

Rose Garden & I-17 NB, Maricopa, AZ

Built 1999 ADT: 9,883

N/S-West Gore

Over: 27 Ave

NW Corner of 101/I 17 TI, Maricopa, AZ

Built 2000 ADT: 19,567

N/S - 101 E Gore

Over: 23rd Avenue

SE Quadrant I17/101L JCT, Maricopa, AZ

Built 2000 ADT: 5,005

WB 101L to I 17

Over: 23rd Ave

N/E Corner of 101/I 17 TI, Maricopa, AZ

Built 1999 ADT: 5,445

I 17 SB

Over: 101L, S Frontage Rd

Center of TI 2nd Level, Maricopa, AZ

Built 1997 ADT: 33,751

I 17 North Bound

Over: 101L & South Front Rd

2nd Level Center of TI, Maricopa, AZ

Built 1997 ADT: 33,085

I 17 SB

Over: N Frontage Rd

N/W Side of 101/I 17 TI, Maricopa, AZ

Built 1997 ADT: 16,159

I 17 NB

Over: North Frontage Rd

2nd Ll N Ct 101/I 17 TI, Maricopa, AZ

Built 1997 ADT: 16,159

SR 143

Over: Sky Harbor Blvd

1.73 mi W of Jct I 10, Maricopa, AZ

Built 1990 ADT: 6,143

US 60; FAP 022

Over: Agua Fria River & Svc Rd

14.75 mi W Jct I 17, Maricopa, AZ

Built 1993 ADT: 200

79th Avenue

Over: 7 10 EB-WB & Drain Chnl

7 mi W of Jct I 17, Maricopa, AZ

Built 1990 ADT: 213,062

SR 51

Over: Northern Avenue

7.0 mi N Jct I-10, Maricopa, AZ

Built 1993 ADT: 20,213

SR 202 EB

Over: 48th Street

3.45 mi E Jct I 10 &, Maricopa, AZ

Built 1990 ADT: 6,112

Ramp S - E

Over: Rmp 99D/ I-10 /N Con Rd/

Jct SR L101, Maricopa, AZ

Built 1998 ADT: 239,423

Ramp E - N

Over: I 10, McDowell & Rp 99C

South of I 10 / E of 99, Maricopa, AZ

Built 1998 ADT: 248,042

Ramp W - N

Over: N Connector Rd/I 10 Drng

2nd Level NE Corner TI, Maricopa, AZ

Built 1998 ADT: 1,184

Ramp 91B

Over: Ramp 99D

Jct SR L101, Maricopa, AZ

Built 1998 ADT: 2,620

Loop 101 SB Ramp

Over: RID Canal & McDowell Rd

1.0 mi North of I 10, Maricopa, AZ

Built 2000 ADT: 31,300

101L Ramp W-N

Over: McDowell Rd & Rid Canal

East of 99 Av North of 10, Maricopa, AZ

Built 2000 ADT: 134,044

L 202 EB

Over: Ramp B(52nd St Off Rmp)

3.89 mi E Jct I 10 &, Maricopa, AZ

Built 1992 ADT: 15,736

SR 202L EB

Over: 52nd Street

4.04 mi E Jct I10 & S, Maricopa, AZ

Built 1992 ADT: 17,971

SR 202L WB

Over: 52nd Street

4.04 mi E Jct I10 & S, Maricopa, AZ

Built 1992 ADT: 17,971

EB L 202(E Papago)

Over: Van Buren Street

4.20 mi E Jct I 10 &, Maricopa, AZ

Built 1992 ADT: 15,161

WB L202 (E Papago)

Over: Van Buren Street

4.2 mi E Jct I 10 & S, Maricopa, AZ

Built 1992 ADT: 17,971

WB L 202

Over: Washington St(FAU 5041)

4.5 mi E Jct I 10 & S, Maricopa, AZ

Built 1992 ADT: 13,785

SR 202L WB

Over: Sky Harbor Blvd WB

5.02 mi E Jct I 10, Maricopa, AZ

Built 1991 ADT: 47,900

L 202 Ramp F

Over: Sky Har. Blvd EB Ramp F

5.48 mi E Jct I 10 &, Maricopa, AZ

Built 1991 ADT: 20,000

I-17

Over: Deer Valley Road

Deer Valley Rd/I-17, Maricopa, AZ

Built 2009 ADT: 24,310

Shea Blvd

Over: SR 51

9.5 mi N Jct I-10, Maricopa, AZ

Built 1996 ADT: 147,628

32nd Street

Over: SR 51

9.0 mi N Jct I-10, Maricopa, AZ

Built 1995 ADT: 158,437

29th St Ped UP

Over: SR 51 & WFR

8.5 mi N Jct I-10, Maricopa, AZ

Built 1995 ADT: 158,437

Center Parkway

Over: SL 202 (Red Mountain)

6.45 mi E Jct I 10 &, Maricopa, AZ

Built 1993 ADT: 224,918

SR 143 (Hohokam)

Over: Washington Street

2.4 mi N of Jct I 10, Maricopa, AZ

Built 1990 ADT: 18,600

Indian School Road

Over: I 17

8.9 mi North of Jct I 10, Maricopa, AZ

Built 1992 ADT: 220,005

IRR SL 101

Over: 90th Street

8.7 mi N of Jct 101 & 202, Maricopa, AZ

Built 1996 ADT: 21,100

SR Loop 101

Over: Via De Ventura

8 mi N of Jct 101 & 202, Maricopa, AZ

Built 1991 ADT: 3,000

SR Loop 101

Over: Indian Bend Road

7 mi N of Jct 101 & 202, Maricopa, AZ

Built 1991 ADT: 19,300

SR Loop 101

Over: McDonald Drive

6 mi N of Jct 101 & 202, Maricopa, AZ

Built 1991 ADT: 23,500

IRR; SR 101L

Over: Chapparal Road

5.0 mi N of Jct 202, Maricopa, AZ

Built 1996 ADT: 53,163

Thomas Road

Over: SL 101(Pima Frwy)

6.5 mi N of Jct US 60, Maricopa, AZ

Built 1992 ADT: 155,206

SL 101 (Pima Frwy)

Over: McDowell Road

5.5 mi N of Jct US 60, Maricopa, AZ

Built 1993 ADT: 28,000

IRR - SL101

Over: McKellips Road

4.5 mi N of Jct US 60, Maricopa, AZ

Built 1992 ADT: 13,200

SR 202L

Over: Mill Ave & SPPR

6.335 mi E Jct I 10 &, Maricopa, AZ

Built 1993 ADT: 15,147

SR 202L

Over: College Ave

7.55 mi E Jct I 10 &, Maricopa, AZ

Built 1993 ADT: 6,000

SR 202L Ramp

Over: College Avenue

7.55 mi E Jct I 10 &, Maricopa, AZ

Built 1993 ADT: 6,000

SR 202L

Over: Scottsdale Road

7.71 mi E Jct I 10 &, Maricopa, AZ

Built 1994 ADT: 38,487

SL 202 (Red Mtn)

Over: Indian Bend Wash

8.06 mi E Jct I 10 &, Maricopa, AZ

Built 1994 ADT: 2,000

L 202 EB

Over: McClintock; Salt Rv; Ram

1.5 mi N US60/McClintock, Maricopa, AZ

Built 1994 ADT: 42,226

L 202 WB

Over: McClintock; Salt Rv; Ram

1.5 mi W US60/McClintock, Maricopa, AZ

Built 1994 ADT: 42,226

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