Pinal County, AZ

390 public highway bridges

Pinal County Bridge Snapshot

Pinal County, Arizona contains 390 public highway bridges in the FHWA National Bridge Inventory. Roughly 64.4% are rated “Good,” 28.5% “Fair,” 1.5% “Poor,” and 1.5% 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.

390
Total Bridges
64.4%
Good
1.5%
Poor
1.5%
Structurally Deficient

Condition Distribution

Good
64.4% (251)
Fair
28.5% (111)
Poor
1.5% (6)
SD
1.5% (6)

All Bridges (390)

San Man-Tiger Hwy

Good

Over: Smelter Wash

2.0 mi S Jct SR 77, Pinal, AZ

Built 1956 Load: 84.4 t ADT: 2,965

SR79

Good

Over: Coronado Wash

10.8 mi North Jct SR 77, Pinal, AZ

Built 2015 Load: 87.1 t ADT: 34

SR 77

Good

Over: Wash

2.4 mi S Jct SR 79, Pinal, AZ

Built 1955 Load: 89.8 t ADT: 11,643

SR 77

Good

Over: Wash

0.7 mi S Jct SR 79, Pinal, AZ

Built 1955 Load: 89.8 t ADT: 11,643

I 8

Good

Over: Wash

0.2 mi W of Jct I 10, Pinal, AZ

Built 1966 Load: 89.8 t ADT: 9,312

SR 177

Good

Over: Wash

3.0 mi S Jct US 60, Pinal, AZ

Built 1971 Load: 89.8 t ADT: 1,918

SR 77

Good

Over: Big Wash

8.9 mi NE Jct SR 79, Pinal, AZ

Built 1974 Load: 89.8 t ADT: 4,362

IRR I 10

Good

Over: Wash

5.4 mi SE Jct SR 187, Pinal, AZ

Built 1975 Load: 89.8 t ADT: 300

IRR McCartney Rd

Good

Over: Wash

5.5 mi SE Jct SR 187, Pinal, AZ

Built 1975 Load: 89.8 t ADT: 1,000

I 10 Ramp B

Good

Over: Wash

5.6 mi SE Jct SR 187, Pinal, AZ

Built 1975 Load: 89.8 t ADT: 550

IRR; SR 347

Good

Over: Wash

2.7 mi S of Jct I 10, Pinal, AZ

Built 1992 Load: 89.8 t ADT: 43,497

IRR; SR 347

Good

Over: Wash

18.34 mi N of Jct SR 84, Pinal, AZ

Built 1992 Load: 89.8 t ADT: 48,896

US 60

Good

Over: Wash

0.1 mi W Jct SR 79, Pinal, AZ

Built 2004 Load: 89.8 t ADT: 14,767

US 60

Good

Over: Wash

8.8 mi E Jct SR 79, Pinal, AZ

Built 2008 Load: 89.8 t ADT: 10,693

US 60

Good

Over: Wash

1 Mile W of Jct 177, Pinal, AZ

Built 2018 Load: 89.8 t ADT: 10,112

San Man-Tiger Hwy

Good

Over: Big Wash

4.8 mi S Jct SR 77, Pinal, AZ

Built 1956 Load: 89.8 t ADT: 3,072

San Man-Tiger Hwy

Good

Over: Cottonwood Wash

0.6 mi S Jct SR 77, Pinal, AZ

Built 1956 Load: 89.8 t ADT: 2,965

Oro Viejo Drive

Good

Over: Wash

0.1 mi E of Pomeroy Road, Pinal, AZ

Built 1990 Load: 89.8 t ADT: 200

Mountainbrook Dr

Good

Over: Wash

0.3 mi N of US 60, Pinal, AZ

Built 1993 Load: 89.8 t ADT: 5,097

Missile Base Road

Good

Over: CAP Canal

2.0 mi E Jct I-10, Pinal, AZ

Built 1987 Load: 89.8 t ADT: 1,380

Park Link Dr

Good

Over: CAP Canal

0.2 mi NE Jct I-10, Pinal, AZ

Built 1987 Load: 89.8 t ADT: 847

Grand Valley Road

Good

Over: CAP Canal

1.7 mi SE Missile Base Rd, Pinal, AZ

Built 1987 Load: 89.8 t ADT: 10

Porter Road

Good

Over: Drainage Channel

0.1 mi N Jct MCG Hwy, Pinal, AZ

Built 2008 Load: 89.8 t ADT: 1,400

Ironwood Drive

Good

Over: Wash

8.8 miles S of U.S. 60, Pinal, AZ

Built 2009 Load: 89.8 t ADT: 26,288

Ironwood Drive

Good

Over: Wash

Ironwood Drive, Pinal, AZ

Built 2009 Load: 89.8 t ADT: 27,074

Ironwood Drive

Good

Over: Wash

Ironwood Drive, Pinal, AZ

Built 2009 Load: 89.8 t ADT: 18,871

Ironwood Drive

Good

Over: Wash

4.8 mi S Jct US60, Pinal, AZ

Built 2009 Load: 89.8 t ADT: 27,074

Schnepf Road

Good

Over: Queen Creek

1.0 mi N Jct Combs Rd, Pinal, AZ

Built 2009 Load: 89.8 t ADT: 4,786

S Pinnacle Dr

Good

Over: Wash

0.3 mi S Jct Mtn Vista Dr, Pinal, AZ

Built 2000 Load: 89.8 t ADT: 350

W San Tan Heights

Good

Over: Wash

130 ft W Jct Gary Rd, Pinal, AZ

Built 2001 Load: 89.8 t ADT: 4,402

Hunt Hwy

Good

Over: Channel

1.0 mi W Jct Thompson Rd, Pinal, AZ

Built 2014 Load: 89.8 t ADT: 22,584

Hunt Hwy

Good

Over: Channel

150 ft W Jct Thompson Rd, Pinal, AZ

Built 2014 Load: 89.8 t ADT: 22,584

Hunt Hwy

Good

Over: Magma Rd Drainage Chl

75' S of Magma Rd, Pinal, AZ

Built 2021 Load: 89.8 t ADT: 13,725

BIA IRR 27

Good

Over: ROADSIDE DITCH

1KM SE OF JCT W/ N MURPHY, Pinal, AZ

Built 2006 Load: 99.9 t ADT: 100

OLD STATE RTE 87A

Poor

Over: GILA RIVER

3.2 KM N - HWY 87/187 JCT, Pinal, AZ

Built 1925 Load: 5.6 t ADT: 200

BIA ROUTE 3

Poor

Over: E-SPILLWAY COOLIDGE DAM

19.2 KM SW SAN CARLOS AZ, Pinal, AZ

Built 1928 Load: 16.6 t ADT: 390

Selma Highway

Poor

Over: Casa Grande Canal Ext

0.1 mi E Jct SR 87, Pinal, AZ

Built 1900 Load: 20.0 t ADT: 450

IRR BIA RTE 119

Poor

Over: CASA BLANCA CANAL

1.6 KM S HWY 10/587 JCT, Pinal, AZ

Built 1925 Load: 30.6 t ADT: 90

US 60

Poor

Over: Waterfall Canyon

2.6 mi E Jct SR 177, Pinal, AZ

Built 1929 Load: 30.8 t ADT: 7,553

IRR BIA RTE 15

Poor

Over: WASH

55.8 KM N OF AZ HWY 86, Pinal, AZ

Built 1965 Load: 32.4 t ADT: 1,100

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