Structure C005216705 · Keya Paha County, NE

447th AVE over Keya Paha River

Carries 447th AVE over Keya Paha River, 2e 4.2n Burton.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT270 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

270 ft end to end, longest span 89 ft: about 4 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.

Built2009rebuilt 2020
Length270.0 ft82.3 m
Daily traffic20counted 1998
Last inspectedAugust 2023every 24 months

Location

StateNebraska
CountyKeya Paha
Location2e 4.2n Burton
Carries447th AVE
CrossesKeya Paha River
Coordinates42.97830, -99.55130

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length270.0 ft (82.3 m)
Max Span88.6 ft (27 m)
Deck Width28.5 ft (8.7 m)
Deck Area716.0 sq m
Main Spans4
Year Built2009 (reconstructed 2020)

Traffic

Avg Daily Traffic20 (1998)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberC005216705

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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