This presentation was given to an audience of engineers (my peers) at the Metropolitan Water Resources Authority in Chelsea, Mass. on April 16, 2026. The Authority wanted introduce the younger engineers to the systems of the Wachusett Dam.

Included are a few subtle hydraulic tricks the original engineers designed in and  the main piping from the Reservoir to the Nashua River, ending with a short video of the Maximum Flow Test. (300 million gallons per day).

I hope you like it.

Thanks,

Paul