Structure 6195B0000000 · Yakima County, WA

I-82 over Overflow Channel

Carries I-82 over Overflow Channel, 0.6 E Jct US 12.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT160 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

160 ft end to end, longest span 44 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 slab bridge.

Built196066 years old
Length160.1 ft48.8 m
Daily traffic25,406counted 2023
Last inspectedOctober 2023every 24 months

Location

StateWashington
CountyYakima
Location0.6 E Jct US 12
CarriesI-82
CrossesOverflow Channel
Coordinates46.62117, -120.49753

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length160.1 ft (48.8 m)
Max Span44.0 ft (13.4 m)
Deck Width34.1 ft (10.4 m)
Deck Area507.5 sq m
Main Spans4
Year Built1960

Traffic

Avg Daily Traffic25,406 (2023)
Truck Traffic12%
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number0006195B0000000

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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