Umatilla County Bridge Report Card

Umatilla County scores 67 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D67 / 100

Local infrastructure snapshot

Umatilla County, Oregon

Umatilla County has 321 bridges in the National Bridge Inventory, with 14 rated poor and 35 rated scour-critical. Its poor-condition share of 4.4% is at or below the 5.1% statewide average. Poor-condition bridges carry about 24,118 daily vehicle crossings.

321Total Bridges

14Poor (4.4%)

213Fair (66.4%)

35Scour-Critical

Quote-Ready Local Facts

4.4%of county bridges are in poor condition, compared with 5.1% statewide and 6.7% nationally.

24,118daily vehicle crossings are on poor-condition bridges in the county.

35bridges are rated scour-critical, or 10.9% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Umatilla County a Bridge Condition Exposure Score of 67/100 (D). The county has 321 bridges in the National Bridge Inventory, including 14 in poor condition and 35 rated scour-critical. Poor-condition bridges carry about 24,118 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	4.4%	8.7
Poor-condition traffic exposure	25	3.3% of measured traffic	2.4
Scour-critical bridge share	20	10.9%	20.0
Average age vs national baseline	10	52 years vs 48 nationally	1.7
Traffic-data completeness	5	741,206 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	4.4%
State Poor-Condition Share	5.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	10.9%
Average Bridge Age	52 years
Poor-Condition Traffic Exposure	24,118 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeStateline Road over Pine Creek — 17,928 vehicles/day Oldest Listed BridgeHWY 339 over W F Little Walla Walla — built in 1919 All County BridgesBrowse every bridge record in Umatilla County.

Top Bridges to Watch in Umatilla County

Bridge	Reason	Condition	Daily Traffic	Year Built
I-84 Frontage RD over Uprr And Meacham Crk	Poor condition + traffic exposure	Poor	115	1925
Stateline Road over Pine Creek	Poor condition + traffic exposure	Poor	17,928	1964
Or 207 (hwy 333) over A-line Canal	Poor condition + traffic exposure	Poor	4,248	1974
S. Edwards Road over US Feed Canal	Poor condition + traffic exposure	Poor	1,125	1960
Milton Cemetery RD over Walla Walla River	Poor condition + traffic exposure	Poor	281	1961
Emert Road over Hunt Ditch	Poor condition + traffic exposure	Poor	85	2006
Cottonwood Road over S Fork Cottonwood Creek	Poor condition + traffic exposure	Poor	82	1963
Whitehouse Road over Hunt Ditch	Poor condition + traffic exposure	Poor	63	1950
Blue Mtn. Sta. RD over Couse Creek	Poor condition + traffic exposure	Poor	63	1951
Gurdane Road over Butter Creek	Poor condition + traffic exposure	Poor	47	1966

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.