Minnehaha County Culvert Replacements

Minnehaha County Culvert Replacements


Minnehaha County, SD (Various Locations)

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Minnehaha County has made a concerted effort to evaluate and inventory drainage structures on their highway network throughout the county. County engineering staff identified 11 locations where structure replacement was necessary. Banner Associates was hired to perform a hydraulic analysis for each site and propose sizes for the culvert replacements. Banner assisted the County with preparation of structure replacement sheets to accompany 404 permit applications to the USACOE. Banner also provided easement and right-of-way services to the County in the preparation of easement exhibits and H-Lot documents. After permits, easements and right-of-way was secured, Banner completed construction documents, bid the project, and provided construction contract administration, staking, and observation for the project. Banner also assisted the County in public announcement efforts to inform the public when roadways would be closed to accommodate construction. Replacement structures included reinforced concrete pipe ranging from 24" to 84" in diameter, 12'x6' precast concrete box culvert and a double cell 8'x6' precast box culvert.

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Project Goal #1

Replace aging drainage structures at 11 different sites throughout Minnehaha County

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Project Goal #2

Complete projects at various sites to minimize disruption to agricultural traffic

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Project Goal #3

Obtain the necessary right-of-way to complete construction of the project

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Project Goal #4

Size structures appropriately to meet drainage demands and reduce impacts to landowners

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Project Goal #5

Identify and coordinate compliance with the drawings and specifications during construction

Project Features

  • 698 LF - 24" - 84" RCP Culvert Pipe
  • 26 EA - RC Flared Ends
  • 60 LF - 12' x 6' Precast Concrete Box Culvert with Culvert Ends
  • 60 LF - Double 8' x 6' Precast Concrete Box Culvert with Culvert Ends
  • 496 Ton - Class A & B Riprap
  • 4,207 SY - Erosion Control Blanket
  • Temporary Diversion Channels
  • 1,950 Ton - Aggregate Base Course
  • 720 Ton - Asphalt Concrete Composite
  • Traffic Detours for all 11 sites

Services Provided

  • Topographic Survey
  • Preliminary and Final Design
  • Hydraulic Analysis
  • Bidding
  • Construction Contract Administration
  • Construction Observation and Staking

Support Disciplines