Benton County Bridge Report Card

Benton County scores 53 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F53 / 100

Local infrastructure snapshot

Benton County, Oregon

Benton County has 190 bridges in the National Bridge Inventory, with 20 rated poor and 38 rated scour-critical. Its poor-condition share of 10.5% is above the 5.1% statewide average. Poor-condition bridges carry about 35,588 daily vehicle crossings.

190Total Bridges

20Poor (10.5%)

120Fair (63.2%)

38Scour-Critical

Quote-Ready Local Facts

10.5%of county bridges are in poor condition, compared with 5.1% statewide and 6.7% nationally.

35,588daily vehicle crossings are on poor-condition bridges in the county.

38bridges are rated scour-critical, or 20.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Benton County a Bridge Condition Exposure Score of 53/100 (F). The county has 190 bridges in the National Bridge Inventory, including 20 in poor condition and 38 rated scour-critical. Poor-condition bridges carry about 35,588 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	10.5%	21.1
Poor-condition traffic exposure	25	5.9% of measured traffic	4.4
Scour-critical bridge share	20	20.0%	20.0
Average age vs national baseline	10	52 years vs 48 nationally	1.5
Traffic-data completeness	5	602,082 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	10.5%
State Poor-Condition Share	5.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	20.0%
Average Bridge Age	52 years
Poor-Condition Traffic Exposure	35,588 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeHWY 210 EB over Willamette River — 12,687 vehicles/day Oldest Listed BridgeHWY 210 EB over Willamette River — built in 1913 All County BridgesBrowse every bridge record in Benton County.

Top Bridges to Watch in Benton County

Bridge	Reason	Condition	Daily Traffic	Year Built
HWY 210 EB over Willamette River	Poor condition + traffic exposure	Poor	12,687	1913
Or 34 (hwy 210) WB over Willamette River	Poor condition + traffic exposure	Poor	12,687	1964
Hayden Road over Alsea River	Poor condition + traffic exposure	Poor	102	1945
NW Grant ST over Dixon CR	Poor condition + traffic exposure	Poor	4,100	1967
NW Garfield AVE over Dixon CR	Poor condition + traffic exposure	Poor	3,374	1958
E Ingram Island RD over Ingram Slough	Poor condition + traffic exposure	Poor	469	1963
Llewellyn RD over Muddy Creek Overflow	Poor condition + traffic exposure	Poor	437	1959
Beaver Creek RD over Beaver Creek	Poor condition + traffic exposure	Poor	269	1962
Smith Loop over Slough	Poor condition + traffic exposure	Poor	182	1956
Mc Farland RD over Muddy Creek	Poor condition + traffic exposure	Poor	182	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.