Structure C008524005 · Thayer County, NE

County Highway over Stream

Carries County Highway over Stream, 4.7n 5.4e Byron.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
25 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

25 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built1935rebuilt 1997
Length24.9 ft7.6 m
Daily traffic35counted 2003
Last inspectedDecember 2023every 24 months

Location

StateNebraska
CountyThayer
Location4.7n 5.4e Byron
CarriesCounty Highway
CrossesStream
Coordinates40.07470, -97.66390

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length24.9 ft (7.6 m)
Max Span24.0 ft (7.3 m)
Deck Width23.6 ft (7.2 m)
Deck Area54.7 sq m
Main Spans1
Year Built1935 (reconstructed 1997)

Traffic

Avg Daily Traffic35 (2003)
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberC008524005

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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