Waterway Protection Tunnel News

Tunnel Extension Means Less Disruption

September 06, 2018
Tunnel Ext

MSD held a Public Outreach Meeting August 28th to share an update on the 1.5 mile extension of the Waterway Protection Tunnel and the elimination of the I-64 & Grinstead CSO Basin. Area residents were given the opportunity to ask questions about the extension and the project in general.

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MSD’s Waterway Protection Tunnel reaches 220-foot depth milestone

August 14, 2018
Tunnel depth

MSD contractors working to build a massive underground tunnel to prevent wastewater and stormwater from overflowing and entering the Ohio River and Beargrass Creek have reached a significant milestone. The “working” and pump station shafts — which will carry workers and equipment underground — have reached their full depth of 220 feet below the surface.  

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Rock samples from Waterway Protection Tunnel reveal Louisville history

August 13, 2018
Closeup of core sample

MSD’s project to build a tunnel 18 stories underground for wastewater and stormwater storage has also unearthed hundreds of millions of years of history.

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MSD’s Waterway Protection Tunnel to extend and capture more wastewater overflow

August 01, 2018
Tunnel Extension

MSD’s project to build a massive tunnel 18 stories underground to help keep millions of gallons of sewage out of the Ohio River and Beargrass Creek will be expanded to capture even more wastewater and stormwater overflow – and eliminate the need for a planned storage basin project.

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Meet Jacob Mathis, Project Manager for the Waterway Protection Tunnel

May 31, 2018
Jacob Mathis


Jacob L. Mathis, P.E. 


Engineer II 


Waterway Protection Tunnel 


Bachelor of Science, Civil Engineering 

Purdue University (West Lafayette, Indiana) 


Louisville MSD 

Jacobi, Toombs and Lanz Inc. 

Mindel Scott & Associates, Inc 


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