Structure 61503000001370 · Douglas County, OR

Road over Lemolo #1 Spillway

Carries Road over Lemolo #1 Spillway, No Data Entered.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT121 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

121 ft end to end, longest span 35 ft. 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 multi-beam bridge.

Built195472 years old
Length121.1 ft36.9 m
Daily traffic501 lanes
Last inspectedJune 2023every 24 months

Location

StateOregon
CountyDouglas
LocationNo Data Entered
CarriesRoad
CrossesLemolo #1 Spillway
Coordinates43.32297, -122.19402

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length121.1 ft (36.9 m)
Max Span35.1 ft (10.7 m)
Deck Width16.4 ft (5 m)
Deck Area184.5 sq m
Main Spans4
Year Built1954

Traffic

Avg Daily Traffic50
Lanes On Bridge1

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical6 — Scour calculated, stable
Structure Number061503000001370

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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