Millbrook Dam Reconstruction – July 5th, 2019 Update

UPDATE – JULY 5, 2019

The construction project to rehabilitate the Millbrook dam is now substantially completed.

The project, which began in January 2018, included the replacement of the spillway and the reconstruction of the earthen berm. The site has now been rehabilitated and hydroseeded. The grass will be allowed to establish itself before the security fencing is removed sometime towards the end of July or early August.

Also during the month of July, Otonabee Conservation will complete the installation of the public safety measures on and around the Millbrook dam, which include warning signs, an in-water floating buoy line and cedar fencing along the upstream sides of the spillway. The public measures being put in place are consistent with best management practices and guidelines for public safety around dams.

Pictured above is a rendering of the new design for the Millbrook Dam.


In late June turtles were observed attempting to nest and lay their eggs in the topsoil on the earthen berm. Otonabee Conservation staff consulted with experts at the Ontario Turtle Conservation Centre and we have concluded that the hydroseeding and coco mats that were placed on the sloped sides of the earthen dam will not significantly impact the ability of baby turtle’s to leave the nest and move to the water. Turtles typically hatch in early September.


This project has taken many years to come to fruition and we would like to thank everyone who made a contribution towards the success of the project.

We would also like to thank the area residents and neighbours for your patience and understanding through the 18 month long construction phase.

Otonabee Conservation is planning to hold a ribbon cutting event in late summer or early fall; details will be posted on our website.


Otonabee Conservation will provide regular updates throughout the duration of this project, so be sure to check back from time to time.

If you have a question, or an observation to share, you may contact Otonabee Conservation by email at

The chronology of the various phases of this project may be found in the Chronology of the Millbrook Dam section.