Structure 999907000980171 · Trego County, KS

I70 HWY WB over K147 HWY

Carries I70 HWY WB over K147 HWY, Jt K147/i70 WB.

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 FT123 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

123 ft end to end, longest span 48 ft. 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.

Built195967 years old
Length122.7 ft37.4 m
Daily traffic6,850counted 2023
Last inspectedApril 2023every 24 months

Location

StateKansas
CountyTrego
LocationJt K147/i70 WB
CarriesI70 HWY WB
CrossesK147 HWY
Coordinates38.98472, -99.74194

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length122.7 ft (37.4 m)
Max Span47.9 ft (14.6 m)
Deck Width41.7 ft (12.7 m)
Deck Area475.0 sq m
Main Spans3
Year Built1959

Traffic

Avg Daily Traffic6,850 (2023)
Truck Traffic23%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number999907000980171

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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