Polk County Bridge Report Card

Polk County scores 62 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D62 / 100

Local infrastructure snapshot

Polk County, Oregon

Polk County has 162 bridges in the National Bridge Inventory, with 12 rated poor and 35 rated scour-critical. Its poor-condition share of 7.4% is above the 5.1% statewide average. Poor-condition bridges carry about 26,216 daily vehicle crossings.

162Total Bridges

12Poor (7.4%)

113Fair (69.8%)

35Scour-Critical

Quote-Ready Local Facts

7.4%of county bridges are in poor condition, compared with 5.1% statewide and 6.7% nationally.

26,216daily vehicle crossings are on poor-condition bridges in the county.

35bridges are rated scour-critical, or 21.6% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Polk County a Bridge Condition Exposure Score of 62/100 (D). The county has 162 bridges in the National Bridge Inventory, including 12 in poor condition and 35 rated scour-critical. Poor-condition bridges carry about 26,216 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	7.4%	14.8
Poor-condition traffic exposure	25	3.8% of measured traffic	2.8
Scour-critical bridge share	20	21.6%	20.0
Average age vs national baseline	10	48 years vs 48 nationally	0.3
Traffic-data completeness	5	698,189 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	7.4%
State Poor-Condition Share	5.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	21.6%
Average Bridge Age	48 years
Poor-Condition Traffic Exposure	26,216 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeOr 99w (hwy 91) over North Fork Ash Creek — 14,149 vehicles/day Oldest Listed BridgeOr 223 (hwy 191)sb over Rickreall Creek — built in 1918 All County BridgesBrowse every bridge record in Polk County.

Top Bridges to Watch in Polk County

Bridge	Reason	Condition	Daily Traffic	Year Built
Or 99w (hwy 91) over North Fork Ash Creek	Poor condition + traffic exposure	Poor	14,149	1954
Or 223 (hwy 191) over Fern Creek	Poor condition + traffic exposure	Poor	3,545	1953
Or 223 (hwy 191) over Mctimmonds Creek	Poor condition + traffic exposure	Poor	879	1967
Monmouth Cut Off over N Fk Ash Creek	Poor condition + traffic exposure	Poor	4,473	1979
Godsey Road over N Fk Ash Creek	Poor condition + traffic exposure	Poor	1,112	1960
Winslow Way NW over Salemtowne Golf Cart Pat	Poor condition + traffic exposure	Poor	857	1967
De Jong Road over Trib Of S Yamhill River	Poor condition + traffic exposure	Poor	469	1964
Gage Road over Ritner Creek	Poor condition + traffic exposure	Poor	219	1993
Gage Road over Sheythe Creek	Poor condition + traffic exposure	Poor	219	1993
Gage Road over Clayton Creek	Poor condition + traffic exposure	Poor	219	1993

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.