Structure S075 18205L · Dakota County, NE

Us75/us77 over Bnsf Rr/co RD 073-092-r

Carries Us75/us77 over Bnsf Rr/co RD 073-092-r, 0s Dakota City.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT317 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

317 ft end to end, longest span 95 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.

Built197848 years old
Length316.9 ft96.6 m
Daily traffic6,630counted 2018
Last inspectedSeptember 2024every 24 months

Location

StateNebraska
CountyDakota
Location0s Dakota City
CarriesUs75/us77
CrossesBnsf Rr/co RD 073-092-r
Coordinates42.40790, -96.43150

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length316.9 ft (96.6 m)
Max Span95.1 ft (29 m)
Deck Width42.0 ft (12.8 m)
Deck Area1236.5 sq m
Main Spans4
Year Built1978

Traffic

Avg Daily Traffic6,630 (2018)
Truck Traffic13%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberS075 18205L

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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