Columbia County Bridge Report Card

Columbia County scores 31 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F31 / 100

Local infrastructure snapshot

Columbia County, New York

Columbia County has 243 bridges in the National Bridge Inventory, with 47 rated poor and 19 rated scour-critical. Its poor-condition share of 19.3% is above the 9.9% statewide average. Poor-condition bridges carry about 63,519 daily vehicle crossings.

243Total Bridges

47Poor (19.3%)

156Fair (64.2%)

19Scour-Critical

Quote-Ready Local Facts

19.3%of county bridges are in poor condition, compared with 9.9% statewide and 6.7% nationally.

63,519daily vehicle crossings are on poor-condition bridges in the county.

19bridges are rated scour-critical, or 7.8% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Columbia County a Bridge Condition Exposure Score of 31/100 (F). The county has 243 bridges in the National Bridge Inventory, including 47 in poor condition and 19 rated scour-critical. Poor-condition bridges carry about 63,519 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	19.3%	38.7
Poor-condition traffic exposure	25	11.8% of measured traffic	8.8
Scour-critical bridge share	20	7.8%	15.6
Average age vs national baseline	10	62 years vs 48 nationally	5.8
Traffic-data completeness	5	538,600 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	19.3%
State Poor-Condition Share	9.9%
National Poor-Condition Share	6.7%
County Scour-Critical Share	7.8%
Average Bridge Age	62 years
Poor-Condition Traffic Exposure	63,519 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeRTE I90 over County Road 32 — 12,236 vehicles/day Oldest Listed BridgeRTE 66 over Stony Kill — built in 1886 All County BridgesBrowse every bridge record in Columbia County.

Top Bridges to Watch in Columbia County

Bridge	Reason	Condition	Daily Traffic	Year Built
County Road 3 over Punch Brook	Poor condition + traffic exposure	Poor	667	1931
Harlemville Road over Agawamuck Creek	Poor condition + traffic exposure	Poor	656	1950
Twin Bridges Road over Roeliff Jansen Overflow	Poor condition + traffic exposure	Poor	487	1939
West End Road over Taghkanic Creek	Poor condition + traffic exposure	Poor	435	1945
RTE 66 over Green Brook	Poor condition + traffic exposure	Poor	358	1913
Gallatinville RD over Roeliff Jansen Kill	Poor condition + traffic exposure	Poor	135	1933
Old Route 82 over Taghkanic Creek	Poor condition + traffic exposure	Poor	134	1922
Hickory Hill Road over Agawamuck Creek	Poor condition + traffic exposure	Poor	61	1931
Black Bridge Road over Dover Kill	Poor condition + traffic exposure	Poor	30	1936
RTE I90 over County Road 32	Poor condition + traffic exposure	Poor	12,236	1958

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.