Malheur County Bridge Report Card

Malheur County scores 75 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C75 / 100

Local infrastructure snapshot

Malheur County, Oregon

Malheur County has 181 bridges in the National Bridge Inventory, with 3 rated poor and 46 rated scour-critical. Its poor-condition share of 1.7% is at or below the 5.1% statewide average. Poor-condition bridges carry about 4,672 daily vehicle crossings.

181Total Bridges

3Poor (1.7%)

121Fair (66.9%)

46Scour-Critical

Quote-Ready Local Facts

1.7%of county bridges are in poor condition, compared with 5.1% statewide and 6.7% nationally.

4,672daily vehicle crossings are on poor-condition bridges in the county.

46bridges are rated scour-critical, or 25.4% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Malheur County a Bridge Condition Exposure Score of 75/100 (C). The county has 181 bridges in the National Bridge Inventory, including 3 in poor condition and 46 rated scour-critical. Poor-condition bridges carry about 4,672 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	1.7%	3.3
Poor-condition traffic exposure	25	1.2% of measured traffic	0.9
Scour-critical bridge share	20	25.4%	20.0
Average age vs national baseline	10	49 years vs 48 nationally	0.5
Traffic-data completeness	5	388,270 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	1.7%
State Poor-Condition Share	5.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	25.4%
Average Bridge Age	49 years
Poor-Condition Traffic Exposure	4,672 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeOr 52 (hwy 492) over Snake River — 4,512 vehicles/day Oldest Listed BridgeOwyhee River C1025 over Owyhee River (rome) — built in 1906 All County BridgesBrowse every bridge record in Malheur County.

Top Bridges to Watch in Malheur County

Bridge	Reason	Condition	Daily Traffic	Year Built
Or 52 (hwy 492) over Snake River	Poor condition + traffic exposure	Poor	4,512	1953
Little Vly RD C6 over Vale Main Canal	Poor condition + traffic exposure	Poor	140	1978
Owyhee River C1025 over Owyhee River (rome)	Poor condition + traffic exposure	Poor	20	1906
US 30 (hwy 493) over Snake R. (hwy 493)	Scour-critical foundation rating	Good	26,880	1967
Or 201 (hwy 455) over Malheur River	Scour-critical foundation rating	Fair	13,346	1976
I-84 (hwy 006) EB over Malheur River	Scour-critical foundation rating	Fair	9,549	1973
I-84 (hwy 006) WB over Malheur River	Scour-critical foundation rating	Good	9,549	1973
US 20 (hwy 007) over Snake River(nyssa)	Scour-critical foundation rating	Fair	5,100	1957
US 20 (hwy 007) over Malheur River (hope)	Scour-critical foundation rating	Fair	2,470	1966
US 20 (hwy 007) over Buckaroo Cabin Creek	Scour-critical foundation rating	Good	2,054	1962

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.