GS&P’s Young and Crist Present at 2017 Water Professionals Conference

Senior Water Resources Engineers Share Expertise on Deep Pump Stations and Manhole Design

August 03, 2017   |   Nashville,  Tenn.   |   Events

Gresham, Smith and Partners announces that Senior Water Resources Engineers Tony Young, P.E., and Anthony Crist, P.E., delivered presentations at the 2017 Kentucky/Tennessee Water Professionals Conference in Lexington, Ky. Topics included design challenges of deep pump stations and innovative manhole designs to combat topographic challenges.

“The Kentucky/Tennessee Water Professionals Conference was a great opportunity to share best practices and lessons learned with our clients and peers,” commented Crist. “As the water, wastewater and stormwater industries advance, our team is working hard to be at the forefront of the technology and innovation that allows us to help our clients overcome unique challenges and reach their goals. I hope that the case studies we presented will prove useful to those who were in attendance.”

Summaries of the presentations follow.

It's a Long Way Down - Design Challenges of a Deep Pump Station
Presentation by GS&P Senior Water Resources Engineer Tony Young, P.E.
 
The Metropolitan St. Louis Sewer District, which has the fourth largest collection system in the United States, is in the midst of a nearly $5 billion, 23-year consent decree program to remove sanitary sewer overflows and abate combined sewer overflows. A major component of the consent decree program, which is referred to as “Project Clear”, is the Deer Creek Sanitary Tunnel and Pump Station project. In this presentation, Young analyzed the unique design challenges that the team faced during the engineering design process of the 180 foot deep Deer Creek Pump Station, such as physical facility characteristics, safety and environmental considerations, hydraulic conditions, and maintenance requirements.
 
Maximizing Your Minimum Slope – Innovative Manhole Design for the Reedy Creek Trunk Sewer
Presentation by GS&P Senior Water Resources Engineer Anthony Crist, P.E
 
Designing a seven million gallon wastewater storage facility and the associated 4,300 foot large diameter trunk sewer for the City of Kingsport, Tennessee presented GS&P with an unusual challenge due to the flat topography of the sewer basin. To maintain hydraulic gradient across manholes, the commonly accepted practice at the time was to include a 0.1-foot elevation drop across each manhole. However, utilizing this standard would consume 2 feet of the available elevation, leaving insufficient slope for the required flow. In this presentation, Crist highlighted GS&P’s innovative design solution, which included a unique trunk sewer installation using centrifugally cast, fiberglass reinforced, polymer mortar T-Base manholes. 

“The Kentucky/Tennessee Water Professionals Conference was a great opportunity to share best practices and lessons learned with our clients and peers. As the water, wastewater and stormwater industries advance, our team is working hard to be at the forefront of the technology and innovation that allows us to help our clients overcome unique challenges and reach their goals. ”

Anthony Crist, P.E., senior water resources engineer, GS&P
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