Structure S283 05820 · Dawson County, NE

Us283 over Us30/uprr 816-899-f

Carries Us283 over Us30/uprr 816-899-f, Us30/us283 Intrchg.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT736 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

736 ft end to end, longest span 93 ft: about 2.0 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 multi-beam bridge.

Built1971rebuilt 1991
Length735.9 ft224.3 m
Daily traffic11,875counted 2018
Last inspectedNovember 2023every 24 months

Location

StateNebraska
CountyDawson
LocationUs30/us283 Intrchg
CarriesUs283
CrossesUs30/uprr 816-899-f
Coordinates40.77540, -99.73910

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length735.9 ft (224.3 m)
Max Span92.8 ft (28.3 m)
Deck Width38.4 ft (11.7 m)
Deck Area2624.3 sq m
Main Spans9
Year Built1971 (reconstructed 1991)

Traffic

Avg Daily Traffic11,875 (2018)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberS283 05820

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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