Structure S480 00310R · Douglas County, NE

Eb-i480 over 20th Thru 16th

Carries Eb-i480 over 20th Thru 16th, In Omaha.

Overall conditionGood

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

How ratings work
Deck8/9 · Very 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 FT1,581 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 7/9 · sets the rating

1,581 ft end to end, longest span 130 ft: about 4.4 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 box-beam bridge.

Built1970rebuilt 2021
Length1581.0 ft481.9 m
Daily traffic42,920counted 2018
Last inspectedMarch 2023every 24 months

Location

StateNebraska
CountyDouglas
LocationIn Omaha
CarriesEb-i480
Crosses20th Thru 16th
Coordinates41.26300, -95.93980

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Multiple
Total Length1581.0 ft (481.9 m)
Max Span129.9 ft (39.6 m)
Deck Width58.1 ft (17.7 m)
Deck Area8529.6 sq m
Main Spans13
Year Built1970 (reconstructed 2021)

Traffic

Avg Daily Traffic42,920 (2018)
Truck Traffic4%
Lanes On Bridge4
Lanes Under Bridge16

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberS480 00310R

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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