Structure L1439290 · Douglas County, OR

25 S 07 W 05.01: over Umpqua River

Carries 25 S 07 W 05.01: over Umpqua River, 0.01 Miles W Of County Ro.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT617 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

617 ft end to end, longest span 135 ft: about 1.7 football fields. Lengths and the semi-truck 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 box-beam bridge.

Built196264 years old
Length617.1 ft188.1 m
Daily traffic50counted 2023
Last inspectedApril 2023every 24 months

Location

StateOregon
CountyDouglas
Location0.01 Miles W Of County Ro
Carries25 S 07 W 05.01:
CrossesUmpqua River
Coordinates43.43083, -123.56472

Physical Characteristics

MaterialConcrete
DesignBox Beam - Single/Spread
Total Length617.1 ft (188.1 m)
Max Span134.8 ft (41.1 m)
Deck Width18.7 ft (5.7 m)
Deck Area1072.2 sq m
Main Spans7
Year Built1962

Traffic

Avg Daily Traffic50 (2023)
Truck Traffic10%
Lanes On Bridge1

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerBureau of Land Management
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number0000000L1439290

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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