Structure 13516G064C02119 · Multnomah County, OR

Glisan ST On Ramp over Oxing HWY 64 Conn No 1

Carries Glisan ST On Ramp over Oxing HWY 64 Conn No 1, 5.4 Mi S Ore-wash Line.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT279 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

279 ft end to end, longest span 129 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 box-beam bridge.

Built198541 years old
Length278.9 ft85 m
Daily traffic68,656counted 2022
Last inspectedJuly 2024every 24 months

Location

StateOregon
CountyMultnomah
Location5.4 Mi S Ore-wash Line
CarriesGlisan ST On Ramp
CrossesOxing HWY 64 Conn No 1
Coordinates45.52728, -122.56461

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Single/Spread
Total Length278.9 ft (85 m)
Max Span128.9 ft (39.3 m)
Deck Width37.4 ft (11.4 m)
Deck Area969 sq m
Main Spans3
Year Built1985

Traffic

Avg Daily Traffic68,656 (2022)
Truck Traffic8%
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number13516G064C02119

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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