Structure C004013705P · Hall County, NE

Nine Bridge Road over S Ch Platte River

Carries Nine Bridge Road over S Ch Platte River, 1.8n Doniphan.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT603 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

603 ft end to end, longest span 100 ft: about 1.7 football fields. 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 through truss.

Built1924rebuilt 1971
Length603.0 ft183.8 m
Daily traffic35counted 2003
Last inspectedAugust 2023every 24 months

Location

StateNebraska
CountyHall
Location1.8n Doniphan
CarriesNine Bridge Road
CrossesS Ch Platte River
Coordinates40.80460, -98.36830

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length603.0 ft (183.8 m)
Max Span100.1 ft (30.5 m)
Deck Width16.1 ft (4.9 m)
Deck Area900.6 sq m
Main Spans6
Year Built1924 (reconstructed 1971)

Traffic

Avg Daily Traffic35 (2003)
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberC004013705P

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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