Structure 19C185008000185 · Douglas County, OR

County RD 80 over S. Umpqua River Overflow

Carries County RD 80 over S. Umpqua River Overflow, 6.0 Mi NW Of Roseburg.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT101 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

101 ft end to end, longest span 25 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built196363 years old
Length101.0 ft30.8 m
Daily traffic73counted 2020
Last inspectedApril 2023every 24 months

Location

StateOregon
CountyDouglas
Location6.0 Mi NW Of Roseburg
CarriesCounty RD 80
CrossesS. Umpqua River Overflow
Coordinates43.25785, -123.43791

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length101.0 ft (30.8 m)
Max Span24.9 ft (7.6 m)
Deck Width24.0 ft (7.3 m)
Deck Area224.8 sq m
Main Spans4
Year Built1963

Traffic

Avg Daily Traffic73 (2020)
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number19C185008000185

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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