Solano County Bridge Report Card

Solano County scores 72 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C72 / 100

Local infrastructure snapshot

Solano County, California

Solano County has 374 bridges in the National Bridge Inventory, with 24 rated poor and 5 rated scour-critical. Its poor-condition share of 6.4% is above the 4.9% statewide average. Poor-condition bridges carry about 1,075,345 daily vehicle crossings.

374Total Bridges

24Poor (6.4%)

156Fair (41.7%)

5Scour-Critical

Quote-Ready Local Facts

6.4%of county bridges are in poor condition, compared with 4.9% statewide and 6.7% nationally.

1,075,345daily vehicle crossings are on poor-condition bridges in the county.

5bridges are rated scour-critical, or 1.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Solano County a Bridge Condition Exposure Score of 72/100 (C). The county has 374 bridges in the National Bridge Inventory, including 24 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 1,075,345 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	6.4%	12.8
Poor-condition traffic exposure	25	16.0% of measured traffic	12.0
Scour-critical bridge share	20	1.3%	2.7
Average age vs national baseline	10	50 years vs 48 nationally	0.9
Traffic-data completeness	5	6,713,059 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	6.4%
State Poor-Condition Share	4.9%
National Poor-Condition Share	6.7%
County Scour-Critical Share	1.3%
Average Bridge Age	50 years
Poor-Condition Traffic Exposure	1,075,345 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeInterstate 80 over Suisun Creek — 202,000 vehicles/day Oldest Listed BridgePutah CR RD over Pleasants Creek — built in 1907 All County BridgesBrowse every bridge record in Solano County.

Top Bridges to Watch in Solano County

Bridge	Reason	Condition	Daily Traffic	Year Built
Interstate 80 over Suisun Creek	Poor condition + traffic exposure	Poor	202,000	1932
Bunker Station RD over Hass Slough	Poor condition + traffic exposure	Poor	25	1959
Interstate 80 over Green Valley Creek	Poor condition + traffic exposure	Poor	189,000	1928
Interstate 80 over Alamo Creek	Poor condition + traffic exposure	Poor	147,000	1936
Interstate 80 WB over West Texas Street	Poor condition + traffic exposure	Poor	87,500	1961
Interstate 80 EB over West Texas Street	Poor condition + traffic exposure	Poor	87,500	1961
Interstate 80 WB over Gibson Canyon Creek	Poor condition + traffic exposure	Poor	60,750	1965
State Route 12 over Alonzo Drain	Poor condition + traffic exposure	Poor	40,500	1980
W80-s680&n680-w80 over Green Valley Creek	Poor condition + traffic exposure	Poor	33,700	1961
State Route 37 over Napa River And Wilson Av	Poor condition + traffic exposure	Poor	33,000	1963

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.