Structure S045 00360 · Madison County, NE

N45 over Shell Creek

Carries N45 over Shell Creek, 1n Newman Grove.

Overall conditionGood

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

How ratings work
Deck9/9 · Excellent
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT142 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 8/9Substructure 7/9 · sets the rating

142 ft end to end, longest span 52 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 tee-beam bridge.

Built1960rebuilt 2011
Length142.1 ft43.3 m
Daily traffic945counted 2018
Last inspectedMay 2023every 24 months

Location

StateNebraska
CountyMadison
Location1n Newman Grove
CarriesN45
CrossesShell Creek
Coordinates41.75110, -97.77460

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignTee Beam
Total Length142.1 ft (43.3 m)
Max Span51.8 ft (15.8 m)
Deck Width48.6 ft (14.8 m)
Deck Area640.8 sq m
Main Spans3
Year Built1960 (reconstructed 2011)

Traffic

Avg Daily Traffic945 (2018)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberS045 00360

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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