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Connection to L-P Rural Water

October 5, 2018

For over 20 years Edgerton has been discussing a connection to Lincoln Pipestone Rural Water (LPRW).  The current Council wanted an outside opinion to evaluate all alternatives and to provide a recommendation.  These alternatives included expanding their existing well field, connecting to LPRW for 100% of their demand or blending with LPRW.  DGR completed a preliminary engineering report that met all the requirements for Rural Development.  In fact, this report is being used as an example for other communities to use.  This report evaluated the most cost-effective long-term solution for their water system. This included determining the cost of production to compare between the sources.  Ultimately, the City decided to connect to LPRW.  This was not the most cost-effective solution.  However, the non-monetary factors such as the long-term viability of the aquifer and water quality steered the decision to blend the City’s water with LPRW.

 

Water Main Replacement

October 5, 2018

This project consisted of water main replacement on St. Paul Avenue from Benson Road to 39th Street North in Sioux Falls, South Dakota.  Work included water main replacement, sanitary manhole repair, replacement of surfacing over trenches, and boulevard restoration.  The water main replacement successfully utilized both open trenching and directional drilling methods.  Sanitary manhole repair included reconstructing manhole benches and inverts along with installing manhole external frame seals.

Water Main Extension

October 5, 2018

This project consisted of installing 8” water main beginning approximately 1,700 feet southwest of the Great Bear entrance road and continuing 3,700 feet to the northeast.  This project included water main installation, asphalt removal and replacement, and site restoration and grading.  Also included in this project was the grading and paving for a turn lane approximately 600 feet long on Rice Street for the proposed TJN site.

River Crossing/Street Improvements

October 5, 2018

This project consisted of 4,200 L.F. of street improvements on 15th Street (Clark Avenue to Garfield Avenue), Garfield Avenue (15th Street to 12th Street), and State Avenue (Thresher Drive to 12th Street).  Also included in this project were 4,400 feet of water main, 2,000 feet of sanitary sewer, and two directionally drilled river crossings approximately 350 feet each.  Street paving on 15th Street and Garfield Avenue was with 9″ concrete, with asphalt concrete paving used on State Avenue and at intersecting street tie-ins. ADA accessible sidewalks were also installed on this project for safe access to the middle school and high school.

Sandness Raw Water Main Project

June 21, 2018

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.