Structure 620100 · Mitchell County, KS

Rs 236 over Waconda Lake

Carries Rs 236 over Waconda Lake, 2.0s Of Cawker City.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT506 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

506 ft end to end, longest span 136 ft: about 7 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 multi-beam bridge.

Built196957 years old
Length505.9 ft154.2 m
Daily traffic235counted 2015
Last inspectedJuly 2023every 24 months

Location

StateKansas
CountyMitchell
Location2.0s Of Cawker City
CarriesRs 236
CrossesWaconda Lake
Coordinates39.47694, -98.42722

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length505.9 ft (154.2 m)
Max Span136.2 ft (41.5 m)
Deck Width31.2 ft (9.5 m)
Deck Area1464.9 sq m
Main Spans4
Year Built1969

Traffic

Avg Daily Traffic235 (2015)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000620100

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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