Did you know that Chestnut Hill Reservoir Dam helps hold back 500 million gallons of water? Welcome to a place of history and engineering. We are standing at the Chestnut Hill Reservoir Dam. It is more than just a water source. It is a designated Boston Landmark.
Let’s step back in time. The Chestnut Hill Reservoir was created in 1870. It was built on existing marshes and meadowland. The reservoir supplemented Boston’s growing water needs. Imagine this area teeming with activity during its construction.
For many years, the reservoir reliably supplied Boston with water. It was taken offline in 1978. This happened when it was no longer needed for regular water distribution. But it is still kept in emergency backup status.
The Chestnut Hill Reservoir played a vital role in 2010. A pipe failure occurred in the MetroWest Water Supply Tunnel. The reservoir was temporarily brought back online. It kept the water supply going during this crisis.
The Sudbury aqueduct was also activated. It fed Chestnut Hill from the Foss and Sudbury reservoirs. Another emergency source, Spot Pond reservoir, was also tapped. A boil-water order was issued as a precaution. Tests later confirmed the water was safe to drink.
Around the Chestnut Hill Reservoir, a 1.56-mile jogging loop provides recreation. People come here to walk and enjoy nature. The Chestnut Hill Reservation surrounds the reservoir. It offers shoreline fishing. Birdwatchers can spot many species here. At least 195 species have been observed.
The area once featured a popular drive. This 80-foot-wide winding path gave beautiful views. It was known as the most popular drive in the city. Today, part of it survives as Chestnut Hill Driveway.
The Lawrence Basin was part of the original reservoir system. It was named after Amos Adams Lawrence. This basin was phased out after the Quabbin Reservoir was built. The Lawrence Basin is now the site of the Boston College football stadium.
The Metropolitan Waterworks Museum is nearby. It is in a converted pumping station. It shows the history of Boston’s water system.
MWRA sometimes lowers the reservoir’s water level. This is done to control aquatic invasive plants. This drawdown helps curb the growth of Eurasian milfoil. The public is advised not to enter the drawn-down areas.
The Chestnut Hill Reservoir Dam continues to be inspected regularly. It remains in satisfactory condition. It is an important part of Boston’s water infrastructure. This landmark stands as a testament to the city’s history. It shows Boston’s commitment to providing essential resources. As we conclude our tour here, remember the vital role of the Chestnut Hill Reservoir and its dam.