Structure 514301050000243 · Wyandotte County, KS

55th Street over Bnsf Railroad Yard

Carries 55th Street over Bnsf Railroad Yard, 55th ST Over Santa Fe Rr.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT478 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

478 ft end to end, longest span 87 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.

Built199333 years old
Length478.0 ft145.7 m
Daily traffic12,460counted 2013
Last inspectedMarch 2023every 24 months

Location

StateKansas
CountyWyandotte
Location55th ST Over Santa Fe Rr
Carries55th Street
CrossesBnsf Railroad Yard
Coordinates39.08719, -94.70521

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length478.0 ft (145.7 m)
Max Span86.9 ft (26.5 m)
Deck Width40.7 ft (12.4 m)
Deck Area1806.7 sq m
Main Spans7
Year Built1993

Traffic

Avg Daily Traffic12,460 (2013)
Truck Traffic75%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number514301050000243

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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