Ferry County Bridge Report Card

Ferry County scores 43 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F43 / 100

Local infrastructure snapshot

Ferry County, Washington

Ferry County has 55 bridges in the National Bridge Inventory, with 6 rated poor and 6 rated scour-critical. Its poor-condition share of 10.9% is above the 5.6% statewide average. Poor-condition bridges carry about 3,664 daily vehicle crossings.

55Total Bridges

6Poor (10.9%)

26Fair (47.3%)

6Scour-Critical

Quote-Ready Local Facts

10.9%of county bridges are in poor condition, compared with 5.6% statewide and 6.7% nationally.

3,664daily vehicle crossings are on poor-condition bridges in the county.

6bridges are rated scour-critical, or 10.9% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Ferry County a Bridge Condition Exposure Score of 43/100 (F). The county has 55 bridges in the National Bridge Inventory, including 6 in poor condition and 6 rated scour-critical. Poor-condition bridges carry about 3,664 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	10.9%	21.8
Poor-condition traffic exposure	25	18.0% of measured traffic	13.5
Scour-critical bridge share	20	10.9%	20.0
Average age vs national baseline	10	51 years vs 48 nationally	1.4
Traffic-data completeness	5	20,342 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	10.9%
State Poor-Condition Share	5.6%
National Poor-Condition Share	6.7%
County Scour-Critical Share	10.9%
Average Bridge Age	51 years
Poor-Condition Traffic Exposure	3,664 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSR 20 over Abandoned Railroad — 2,660 vehicles/day Oldest Listed BridgeUS 395 over East Deer CR — built in 1900 All County BridgesBrowse every bridge record in Ferry County.

Top Bridges to Watch in Ferry County

Bridge	Reason	Condition	Daily Traffic	Year Built
SR 21 over San Poil R	Poor condition + traffic exposure	Poor	705	1931
SR 21 over San Poil River	Poor condition + traffic exposure	Poor	193	1931
SR 20 over Abandoned Railroad	Poor condition + traffic exposure	Poor	2,660	1960
IRR BIA RTE 1123 over Sitdown Creek	Poor condition + traffic exposure	Poor	50	1993
Silver Ck RD 00670 over Nine Mile Creek	Poor condition + traffic exposure	Poor	47	1958
Mcmann Creek Road over San Poil River	Poor condition + traffic exposure	Poor	9	1953
US 395 over East Deer CR	Scour-critical foundation rating	Fair	645	1900
US 395 over Little Boulder CR	Scour-critical foundation rating	Fair	358	1900
W Kettle Riv Road over Kettle River	Scour-critical foundation rating	Fair	235	1950
Old US 395 Align over Boulder Creek	Scour-critical foundation rating	Fair	1	1920

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.