Structure 8202 001 29634 · Multnomah County, OR

Spring Garden RD over I-5 (hwy 001)

Carries Spring Garden RD over I-5 (hwy 001), 1.3 Mi N Of Barbur BLVD.

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 FT189 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

189 ft end to end, longest span 101 ft: about 3 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.

Built195967 years old
Length188.6 ft57.5 m
Daily traffic96,559counted 2020
Last inspectedJanuary 2024every 24 months

Location

StateOregon
CountyMultnomah
Location1.3 Mi N Of Barbur BLVD
CarriesSpring Garden RD
CrossesI-5 (hwy 001)
Coordinates45.46353, -122.69908

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length188.6 ft (57.5 m)
Max Span101.0 ft (30.8 m)
Deck Width42.0 ft (12.8 m)
Deck Area736 sq m
Main Spans2
Year Built1959

Traffic

Avg Daily Traffic96,559 (2020)
Truck Traffic11%
Lanes On Bridge2
Lanes Under Bridge7

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number08202 001 29634

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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