Pinal County Bridge Report Card

Pinal County scores 91 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A91 / 100

Local infrastructure snapshot

Pinal County, Arizona

Pinal County has 717 bridges in the National Bridge Inventory, with 7 rated poor and 16 rated scour-critical. Its poor-condition share of 1.0% is at or below the 1.1% statewide average. Poor-condition bridges carry about 18,388 daily vehicle crossings.

717Total Bridges

7Poor (1.0%)

256Fair (35.7%)

16Scour-Critical

Quote-Ready Local Facts

1.0%of county bridges are in poor condition, compared with 1.1% statewide and 6.7% nationally.

18,388daily vehicle crossings are on poor-condition bridges in the county.

16bridges are rated scour-critical, or 2.2% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Pinal County a Bridge Condition Exposure Score of 91/100 (A). The county has 717 bridges in the National Bridge Inventory, including 7 in poor condition and 16 rated scour-critical. Poor-condition bridges carry about 18,388 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.

Download all county report-card scores as CSV.

How the Score Breaks Down

Factor	Weight	County Value	Penalty
Poor-condition bridge share	40	1.0%	2.0
Poor-condition traffic exposure	25	0.3% of measured traffic	0.2
Scour-critical bridge share	20	2.2%	4.5
Average age vs national baseline	10	53 years vs 48 nationally	2.0
Traffic-data completeness	5	6,057,658 measured daily crossings	0.0

Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.

County Comparisons

County Poor-Condition Share	1.0%
State Poor-Condition Share	1.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	2.2%
Average Bridge Age	53 years
Poor-Condition Traffic Exposure	18,388 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUS 60 over Waterfall Canyon — 8,079 vehicles/day Oldest Listed BridgeSelma Highway over Casa Grande Canal Ext — built in 1900 All County BridgesBrowse every bridge record in Pinal County.

Top Bridges to Watch in Pinal County

Bridge	Reason	Condition	Daily Traffic	Year Built
US 60 over Waterfall Canyon	Poor condition + traffic exposure	Poor	8,079	1929
US 60 over Queen Creek	Poor condition + traffic exposure	Poor	8,079	1949
IRR BIA RTE 15 over Wash	Poor condition + traffic exposure	Poor	1,100	1965
Selma Highway over Casa Grande Canal Ext	Poor condition + traffic exposure	Poor	450	1900
BIA Route 3 over E-spillway Coolidge Dam	Poor condition + traffic exposure	Poor	390	1928
Old State RTE 87a over Gila River	Poor condition + traffic exposure	Poor	200	1925
IRR BIA RTE 119 over Casa Blanca Canal	Poor condition + traffic exposure	Poor	90	1925
IRR SR 87 over Pima Lateral Canal	Scour-critical foundation rating	Fair	11,494	1920
IRR SR 87 over Mcclellan Wash	Scour-critical foundation rating	Fair	10,511	1960
IRR SR 87 over Santa Cruz Wash	Scour-critical foundation rating	Fair	10,511	1960

Important safety note

Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.