Structure 58029050 · Spink County, SD

153rd Street over Snake Creek

Carries 153rd Street over Snake Creek, 1.0n 4.1w Northville.

Overall conditionGood

Set by its lowest-rated component: Culvert at 8 of 9.

How ratings work
Culvertsets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT42 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 42 ft across with 4 openings. 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, so those are drawn as typical for a culvert.

Built20242 years old
Length42.0 ft12.8 m
Daily traffic55counted 2022
Last inspectedJanuary 2025every 24 months

Location

StateSouth Dakota
CountySpink
Location1.0n 4.1w Northville
Carries153rd Street
CrossesSnake Creek
Coordinates45.17288, -98.65765

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length42.0 ft (12.8 m)
Max Span9.8 ft (3 m)
Deck Width20.0 ft (6.1 m)
Deck Area78.1 sq m
Main Spans4
Year Built2024

Traffic

Avg Daily Traffic55 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000058029050

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.

Nearby Bridges