Douglas County Bridge Report Card

Douglas County scores 77 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C77 / 100

Local infrastructure snapshot

Douglas County, Oregon

Douglas County has 701 bridges in the National Bridge Inventory, with 16 rated poor and 58 rated scour-critical. Its poor-condition share of 2.3% is at or below the 5.1% statewide average. Poor-condition bridges carry about 13,836 daily vehicle crossings.

701Total Bridges

16Poor (2.3%)

440Fair (62.8%)

58Scour-Critical

Quote-Ready Local Facts

2.3%of county bridges are in poor condition, compared with 5.1% statewide and 6.7% nationally.

13,836daily vehicle crossings are on poor-condition bridges in the county.

58bridges are rated scour-critical, or 8.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Douglas County a Bridge Condition Exposure Score of 77/100 (C). The county has 701 bridges in the National Bridge Inventory, including 16 in poor condition and 58 rated scour-critical. Poor-condition bridges carry about 13,836 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	2.3%	4.6
Poor-condition traffic exposure	25	0.6% of measured traffic	0.4
Scour-critical bridge share	20	8.3%	16.5
Average age vs national baseline	10	52 years vs 48 nationally	1.8
Traffic-data completeness	5	2,496,296 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	2.3%
State Poor-Condition Share	5.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	8.3%
Average Bridge Age	52 years
Poor-Condition Traffic Exposure	13,836 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeStewart Park Road over South Umpqua River — 4,541 vehicles/day Oldest Listed BridgeCurtin Road #212 over Pass Creek — built in 1919 All County BridgesBrowse every bridge record in Douglas County.

Top Bridges to Watch in Douglas County

Bridge	Reason	Condition	Daily Traffic	Year Built
Stewart Park Road over South Umpqua River	Poor condition + traffic exposure	Poor	4,541	1946
County RD 12 over Cow Creek At Glendale	Poor condition + traffic exposure	Poor	2,574	1974
County RD 47 over Lookingglass Creek	Poor condition + traffic exposure	Poor	2,002	1958
County RD 20a over Cow Creek	Poor condition + traffic exposure	Poor	857	1956
County RD 31 over Sutherlin Creek	Poor condition + traffic exposure	Poor	857	1962
County RD 5 over Archambeau Creek	Poor condition + traffic exposure	Poor	724	1974
Elkhead Road #50 over Oldham Creek	Poor condition + traffic exposure	Poor	551	1965
County RD 16 over South Deer Creek	Poor condition + traffic exposure	Poor	486	1967
County RD 23 over Williams Creek	Poor condition + traffic exposure	Poor	272	1957
County RD 18 over South Myrtle Creek	Poor condition + traffic exposure	Poor	272	1961

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.