Structure 9179 210 00013 · Benton County, OR

Or 34 (hwy 210) WB over Willamette River

Carries Or 34 (hwy 210) WB over Willamette River, On Linn Benton Co LN.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT889 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 4/9 · sets the rating

889 ft end to end, longest span 190 ft: about 2.5 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 multi-beam bridge.

Built196462 years old
Length889.1 ft271 m
Daily traffic12,687counted 2022
Last inspectedSeptember 2024every 24 months

Location

StateOregon
CountyBenton
LocationOn Linn Benton Co LN
CarriesOr 34 (hwy 210) WB
CrossesWillamette River
Coordinates44.56609, -123.25612

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length889.1 ft (271 m)
Max Span190.0 ft (57.9 m)
Deck Width38.4 ft (11.7 m)
Deck Area3170.7 sq m
Main Spans3
Year Built1964

Traffic

Avg Daily Traffic12,687 (2022)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number09179 210 00013

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.

Nearby Bridges