Amador County Bridge Report Card

Amador County scores 46 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F46 / 100

Local infrastructure snapshot

Amador County, California

Amador County has 61 bridges in the National Bridge Inventory, with 15 rated poor and 0 rated scour-critical. Its poor-condition share of 24.6% is above the 4.9% statewide average. Poor-condition bridges carry about 28,160 daily vehicle crossings.

61Total Bridges

15Poor (24.6%)

25Fair (41.0%)

0Scour-Critical

Quote-Ready Local Facts

24.6%of county bridges are in poor condition, compared with 4.9% statewide and 6.7% nationally.

28,160daily vehicle crossings are on poor-condition bridges in the county.

0bridges are rated scour-critical, or 0.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Amador County a Bridge Condition Exposure Score of 46/100 (F). The county has 61 bridges in the National Bridge Inventory, including 15 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 28,160 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	24.6%	40.0
Poor-condition traffic exposure	25	12.6% of measured traffic	9.5
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	59 years vs 48 nationally	4.6
Traffic-data completeness	5	222,641 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	24.6%
State Poor-Condition Share	4.9%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	59 years
Poor-Condition Traffic Exposure	28,160 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeState Route 104 over Sutter Creek — 11,000 vehicles/day Oldest Listed BridgeBroadway over Jackson Creek — built in 1913 All County BridgesBrowse every bridge record in Amador County.

Top Bridges to Watch in Amador County

Bridge	Reason	Condition	Daily Traffic	Year Built
State Route 104 over Sutter Creek	Poor condition + traffic exposure	Poor	11,000	1970
Shenandoah Road over Big Indian Creek	Poor condition + traffic exposure	Poor	3,006	1930
State Route 88 over Silver Lake Spillway	Poor condition + traffic exposure	Poor	2,750	2002
Shenandoah Road over South Fork Cosumnes Riv	Poor condition + traffic exposure	Poor	2,450	1985
State Route 104 over Dry Creek	Poor condition + traffic exposure	Poor	2,350	2005
State Route 49 over Cosumnes River	Poor condition + traffic exposure	Poor	2,175	1952
Main Street over Amador Creek	Poor condition + traffic exposure	Poor	2,000	2014
Fiddletown Road over North Fork Dry Creek	Poor condition + traffic exposure	Poor	1,237	1923
Pitt Street over Jackson Creek	Poor condition + traffic exposure	Poor	800	1925
Five Mile Drive over Mule Creek	Poor condition + traffic exposure	Poor	260	1925

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.