Structure 671217126200380 · Washington County, OR

Roy Rogers RD over Tualatin River

Carries Roy Rogers RD over Tualatin River, 006 Mi N Scholls-sherwood.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT314 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

314 ft end to end, longest span 105 ft: about 4 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 multi-beam bridge.

Built197155 years old
Length314.0 ft95.7 m
Daily traffic6,446counted 2020
Last inspectedJuly 2024every 24 months

Location

StateOregon
CountyWashington
Location006 Mi N Scholls-sherwood
CarriesRoy Rogers RD
CrossesTualatin River
Coordinates45.38838, -122.85188

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length314.0 ft (95.7 m)
Max Span105.0 ft (32 m)
Deck Width43.6 ft (13.3 m)
Deck Area1272.8 sq m
Main Spans3
Year Built1971

Traffic

Avg Daily Traffic6,446 (2020)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number671217126200380

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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