Structure 7839 001 11344 · Douglas County, OR

I-5 (hwy 001) SB over Clarks Branch RD

Carries I-5 (hwy 001) SB over Clarks Branch RD, 10.5 Mi S Of Roseburg Scl.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT145 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

145 ft end to end, longest span 54 ft: about 2 semi-trucks nose to tail. 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 tee-beam bridge.

Built1956rebuilt 1995
Length145.0 ft44.2 m
Daily traffic12,949counted 2022
Last inspectedJanuary 2025every 24 months

Location

StateOregon
CountyDouglas
Location10.5 Mi S Of Roseburg Scl
CarriesI-5 (hwy 001) SB
CrossesClarks Branch RD
Coordinates43.07403, -123.35833

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length145.0 ft (44.2 m)
Max Span54.1 ft (16.5 m)
Deck Width44.6 ft (13.6 m)
Deck Area601.1 sq m
Main Spans3
Year Built1956 (reconstructed 1995)

Traffic

Avg Daily Traffic12,949 (2022)
Truck Traffic27%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number07839 001 11344

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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