Glenn County Bridge Report Card

Glenn County scores 59 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F59 / 100

Local infrastructure snapshot

Glenn County, California

Glenn County has 240 bridges in the National Bridge Inventory, with 17 rated poor and 19 rated scour-critical. Its poor-condition share of 7.1% is above the 4.9% statewide average. Poor-condition bridges carry about 11,713 daily vehicle crossings.

240Total Bridges

17Poor (7.1%)

132Fair (55.0%)

19Scour-Critical

Quote-Ready Local Facts

7.1%of county bridges are in poor condition, compared with 4.9% statewide and 6.7% nationally.

11,713daily vehicle crossings are on poor-condition bridges in the county.

19bridges are rated scour-critical, or 7.9% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Glenn County a Bridge Condition Exposure Score of 59/100 (F). The county has 240 bridges in the National Bridge Inventory, including 17 in poor condition and 19 rated scour-critical. Poor-condition bridges carry about 11,713 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	7.1%	14.2
Poor-condition traffic exposure	25	2.4% of measured traffic	1.8
Scour-critical bridge share	20	7.9%	15.8
Average age vs national baseline	10	71 years vs 48 nationally	9.4
Traffic-data completeness	5	491,972 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	7.1%
State Poor-Condition Share	4.9%
National Poor-Condition Share	6.7%
County Scour-Critical Share	7.9%
Average Bridge Age	71 years
Poor-Condition Traffic Exposure	11,713 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeRoad 99w over Stony Creek — 4,157 vehicles/day Oldest Listed BridgeSoeth RD (rd 410) over Stony Creek — built in 1900 All County BridgesBrowse every bridge record in Glenn County.

Top Bridges to Watch in Glenn County

Bridge	Reason	Condition	Daily Traffic	Year Built
State Route 162 over Sacramento River	Poor condition + traffic exposure	Poor	2,400	1948
Road #61 over Willow Creek	Poor condition + traffic exposure	Poor	928	1949
County RD 306 over Salt Creek	Poor condition + traffic exposure	Poor	300	1948
Road Y over Mckee Overflow	Poor condition + traffic exposure	Poor	157	1935
IRR Road 305 over Watson Creek	Poor condition + traffic exposure	Poor	120	1920
Road 200a over Stony Creek	Poor condition + traffic exposure	Poor	63	1960
County Road 303 over Clarks Valley Creek	Poor condition + traffic exposure	Poor	27	1935
Road 99w over Stony Creek	Poor condition + traffic exposure	Poor	4,157	1913
State Route 162 over Sacramento River Ovfl	Poor condition + traffic exposure	Poor	1,500	1911
Road #48 over Branch Walker Creek	Poor condition + traffic exposure	Poor	647	1940

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.