Structure 6742 050Y00499 · Klamath County, OR

Esplanade Street over Usrs Canal

Carries Esplanade Street over Usrs Canal, 019 Mi S HWY 4 Jct.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT80 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

80 ft end to end, longest span 20 ft. Lengths and the car 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.

Built1949rebuilt 1998
Length80.1 ft24.4 m
Daily traffic6,228counted 2020
Last inspectedFebruary 2023every 24 months

Location

StateOregon
CountyKlamath
Location019 Mi S HWY 4 Jct
CarriesEsplanade Street
CrossesUsrs Canal
Coordinates42.23202, -121.77451

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length80.1 ft (24.4 m)
Max Span20.0 ft (6.1 m)
Deck Width59.7 ft (18.2 m)
Deck Area444.1 sq m
Main Spans4
Year Built1949 (reconstructed 1998)

Traffic

Avg Daily Traffic6,228 (2020)
Truck Traffic3%
Lanes On Bridge3

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number06742 050Y00499

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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