Pinal County, AZ

390 public highway bridges

Pinal County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Pinal County, Arizona contains 390 public highway bridges. Roughly 64.4% are rated “Good,” 28.5% “Fair,” and 1.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

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

390
Total Bridges
64.4%
Good
28.5%
Fair
1.5%
Poor Condition

Condition Distribution

Good
64.4% (251)
Fair
28.5% (111)
Poor
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.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.