Stanislaus County Bridge Report Card

Stanislaus County scores 44 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F44 / 100

Local infrastructure snapshot

Stanislaus County, California

Stanislaus County has 386 bridges in the National Bridge Inventory, with 52 rated poor and 16 rated scour-critical. Its poor-condition share of 13.5% is above the 4.9% statewide average. Poor-condition bridges carry about 640,852 daily vehicle crossings.

386Total Bridges

52Poor (13.5%)

214Fair (55.4%)

16Scour-Critical

Quote-Ready Local Facts

13.5%of county bridges are in poor condition, compared with 4.9% statewide and 6.7% nationally.

640,852daily vehicle crossings are on poor-condition bridges in the county.

16bridges are rated scour-critical, or 4.1% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Stanislaus County a Bridge Condition Exposure Score of 44/100 (F). The county has 386 bridges in the National Bridge Inventory, including 52 in poor condition and 16 rated scour-critical. Poor-condition bridges carry about 640,852 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	13.5%	26.9
Poor-condition traffic exposure	25	16.9% of measured traffic	12.7
Scour-critical bridge share	20	4.1%	8.3
Average age vs national baseline	10	69 years vs 48 nationally	8.5
Traffic-data completeness	5	3,795,143 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	13.5%
State Poor-Condition Share	4.9%
National Poor-Condition Share	6.7%
County Scour-Critical Share	4.1%
Average Bridge Age	69 years
Poor-Condition Traffic Exposure	640,852 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeBriggsmore Road over Up Rr & Brink Avenue — 71,797 vehicles/day Oldest Listed BridgeRoeding Road over T.i.d. Ceres Main Canal — built in 1900 All County BridgesBrowse every bridge record in Stanislaus County.

Top Bridges to Watch in Stanislaus County

Bridge	Reason	Condition	Daily Traffic	Year Built
Oakdale-waterford over Claribel Lateral	Poor condition + traffic exposure	Poor	4,100	1920
Milton Road over Rock Creek Tributary	Poor condition + traffic exposure	Poor	716	1918
Sonora Road over Martells Creek	Poor condition + traffic exposure	Poor	182	1920
Cooperstown Road over Rydberg Creek	Poor condition + traffic exposure	Poor	37	1922
Briggsmore Road over Up Rr & Brink Avenue	Poor condition + traffic exposure	Poor	71,797	1976
State Route 99 SB over 7th Street & Up Rr	Poor condition + traffic exposure	Poor	52,500	1963
State Route 99 NB over Tuolumne BLVD	Poor condition + traffic exposure	Poor	52,500	1963
Mitchell Road over Tuolumne River	Poor condition + traffic exposure	Poor	37,377	1958
Interstate 5 SB over Hanson Road (private)	Poor condition + traffic exposure	Poor	20,500	1967
Interstate 5 NB over Hanson Road (private)	Poor condition + traffic exposure	Poor	20,500	1967

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.