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Nearby Bridges in NBI 2021: 1


474TH AVENUE over BIG SIOUX RIVER (Route: 0)
Num:50200035x
Open: no restriction [A]
Built: 1997, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 47.5 m = 155.8 ft
Main Spans: 3 at 16.3 m = 53.5 ft
Approach Spans: 0
Skew: 25
Width, Roadway: 9.8 m = 32.2 ft (2 Lanes) and Out-To-Out: 10.5 m = 34.5 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Dell Rapids [16020]: Minnehaha County [099], South Dakota [46]
Owned by County Highway Agency [02], DOT District: 2
1.8S & 0.4W DELL RAPIDS
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 32.7 metric ton = 36.0 tons ()
Inventory: 24.5 metric ton = 27.0 tons ()
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Equal to present desirable criteria [8]
Road Alignment: Superior to present desirable criteria [9]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 1999 [799] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 27 (2020) and Trucks: 2%
Future ADT: 50 (In 2035 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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