Structure SS86B00021 · Thomas County, NE

S86b Natl Forest over Middle Loup River

Carries S86b Natl Forest over Middle Loup River, 1sw Halsey.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT74 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

74 ft end to end, longest span 30 ft. Lengths and the car 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 slab bridge.

Built195274 years old
Length74.1 ft22.6 m
Daily traffic135counted 2018
Last inspectedNovember 2023every 24 months

Location

StateNebraska
CountyThomas
Location1sw Halsey
CarriesS86b Natl Forest
CrossesMiddle Loup River
Coordinates41.90210, -100.29840

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length74.1 ft (22.6 m)
Max Span29.9 ft (9.1 m)
Deck Width28.5 ft (8.7 m)
Deck Area196.6 sq m
Main Spans3
Year Built1952

Traffic

Avg Daily Traffic135 (2018)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure NumberSS86B00021

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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