Structure C005501720 · Lancaster County, NE

SW 29th ST over Salt Creek (t 177)

Carries SW 29th ST over Salt Creek (t 177), .7sw Of Sprague.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT101 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

101 ft end to end. 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 through truss.

Built1935rebuilt 1977
Length101.0 ft30.8 m
Daily traffic186counted 2016
Last inspectedJune 2023every 24 months

Location

StateNebraska
CountyLancaster
Location.7sw Of Sprague
CarriesSW 29th ST
CrossesSalt Creek (t 177)
Coordinates40.61610, -96.76260

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length101.0 ft (30.8 m)
Max Span100.1 ft (30.5 m)
Deck Width29.5 ft (9 m)
Deck Area277.2 sq m
Main Spans1
Year Built1935 (reconstructed 1977)

Traffic

Avg Daily Traffic186 (2016)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberC005501720

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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