Structure S080 23113 · Dawson County, NE

L24a Darr Cnlk over I80

Carries L24a Darr Cnlk over I80, Darr 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 FT252 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

252 ft end to end, longest span 75 ft: about 3 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.

Built1964rebuilt 2009
Length252.0 ft76.8 m
Daily traffic560counted 2018
Last inspectedOctober 2023every 24 months

Location

StateNebraska
CountyDawson
LocationDarr Intrchg
CarriesL24a Darr Cnlk
CrossesI80
Coordinates40.77990, -99.84480

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length252.0 ft (76.8 m)
Max Span75.1 ft (22.9 m)
Deck Width33.1 ft (10.1 m)
Deck Area775.7 sq m
Main Spans4
Year Built1964 (reconstructed 2009)

Traffic

Avg Daily Traffic560 (2018)
Truck Traffic12%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberS080 23113

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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