Client:
Marshall Municipal Utilities

Marshall, MN

Key Features:

  • Gasket jointed PVC pipe was procured under a separate contract from the pipe installation.
  • Over 5500-feet of directionally drilled pipe installation from 12” to 24” in diameter.
  • Two directionally drilled crossings in excess of 500-feet in length.
  • Use of both restrained joint PVC and fusible PVC pipe.

Key Experience:

  • Procurement of materials
  • Directional drilling pipe installation

Sandness Raw Water Main Project

The City of Marshall Minnesota (population 13,664) is a thriving community in Southwest Minnesota, who relies on ground water to supply safe drinking water. Their growing water demands were exceeding the long-term capacity of their aquifers, which had the MN Department of Natural Resources placing further restrictions on their limited capacity.  They had already gone 8 miles outside of town to find water years before… this time they would have to expand their search.

Marshall Municipal Utilities found a new water source which was 27 miles away from their water treatment plant. DGR Engineering designed a combination of 20” & 24” pipeline to deliver this water to the City.  We used our knowledge of cost effective rural construction to save Marshall Municipal Utilities millions of dollars in construction costs.  In the end, Marshall Municipal Utilities added over 4 million gallons per day of water to fuel their growth for years to come.  And with the economical design and bid prices, they had money left in their project budget to tackle other much needed improvements.

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Floodplain Analysis

DGR employed a Geographic Information System (GIS) in conjunction with the U.S. Army Corps of Engineers to first determine the 100-year flood elevations and delineate the floodway boundaries.

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Distribution Conversion

Due to concerns with the age and condition of the structures, along with safety clearances to energized equipment and conductors, a project was undertaken to replace the old infrastructure with new underground lines and associated padmount equipment.

Distribution Conversion
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Street & Utility Improvements

Morningside Avenue was reconstructed totaling approximately 1,300 linear feet. The project included new sanitary sewer, water main, storm sewer, fiber conduits, decorative street lighting, and 9-inch concrete paving with colored concrete sidewalks.

Street & Utility Improvements
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Wastewater Treatment Facility (SBR)

The City ultimately determined a flow-through style SBR system to be the preferred choice based on the selection criteria and the ability to meet anticipated permit limits.

Wastewater Treatment Facility (SBR)
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Site Development

Planning started with site plan design for the new facility to offer maximum exposure to traffic on Highway 75.

Site Development
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Wastewater Treatment Facility (SBR)

The new plant, rated for 5.3 million gallons per day (MGD) peak day, doubles the capacity of its predecessor.

Wastewater Treatment Facility (SBR)
Sheldon, IA