Yuma County Bridge Report Card

Yuma County scores 89 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B89 / 100

Local infrastructure snapshot

Yuma County, Arizona

Yuma County has 262 bridges in the National Bridge Inventory, with 6 rated poor and 5 rated scour-critical. Its poor-condition share of 2.3% is above the 1.1% statewide average. Poor-condition bridges carry about 11,985 daily vehicle crossings.

262Total Bridges

6Poor (2.3%)

123Fair (46.9%)

5Scour-Critical

Quote-Ready Local Facts

2.3%of county bridges are in poor condition, compared with 1.1% statewide and 6.7% nationally.

11,985daily vehicle crossings are on poor-condition bridges in the county.

5bridges are rated scour-critical, or 1.9% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Yuma County a Bridge Condition Exposure Score of 89/100 (B). The county has 262 bridges in the National Bridge Inventory, including 6 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 11,985 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	2.3%	4.6
Poor-condition traffic exposure	25	0.9% of measured traffic	0.7
Scour-critical bridge share	20	1.9%	3.8
Average age vs national baseline	10	52 years vs 48 nationally	1.7
Traffic-data completeness	5	1,332,468 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	2.3%
State Poor-Condition Share	1.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	1.9%
Average Bridge Age	52 years
Poor-Condition Traffic Exposure	11,985 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeI 8 EB over Colo R Pentntry Av Sptco — 8,350 vehicles/day Oldest Listed BridgePenitentiary AVE over Colorado River — built in 1914 All County BridgesBrowse every bridge record in Yuma County.

Top Bridges to Watch in Yuma County

Bridge	Reason	Condition	Daily Traffic	Year Built
I 8 EB over Colo R Pentntry Av Sptco	Poor condition + traffic exposure	Poor	8,350	1978
IRR BIA RTE 31 over Southern Pacific Rr	Poor condition + traffic exposure	Poor	3,550	1965
Local & Canal Serv over Main Outlet Drain Extens	Poor condition + traffic exposure	Poor	25	1966
County 3rd Street over North Gila Canal	Poor condition + traffic exposure	Poor	20	1936
O&m Crossover over Main Outlet Drain Extens	Poor condition + traffic exposure	Poor	20	1966
Pacific Ave./count over Main Outlet Drain Extens	Poor condition + traffic exposure	Poor	20	1966
Avenue 7e over Gila River	Scour-critical foundation rating	Good	3,688	1988
S Frontage RD over Fortuna Wash	Scour-critical foundation rating	Fair	3,375	1933
Old US 80 over Ligurta Wash	Scour-critical foundation rating	Fair	2,302	1930
Old US 80 over Dry Wash	Scour-critical foundation rating	Good	2,302	1930

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.