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    Categories>History & Society>The Merritt Parkway’s Hidden Reservoirs: Putnam and Rockwood

    The Merritt Parkway’s Hidden Reservoirs: Putnam and Rockwood

    14 min
    |
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    Jun 6, 2026
    HistoryEnvironmentSociety

    Discover the history of the Merritt Parkway’s Putnam and Rockwood reservoirs. Learn how 1930s engineering shaped this Greenwich watershed and its water supply.

    The Merritt Parkway’s Hidden Reservoirs: Putnam and Rockwood

    Best quote from The Merritt Parkway’s Hidden Reservoirs: Putnam and Rockwood

    “

    The Merritt Parkway is a highly designed environment specifically engineered to look like it wasn't engineered at all, representing a moment in time where we tried to balance massive infrastructure with a 'City Beautiful' philosophy.

    ”

    This audio lesson was created by a BeFreed community member

    Input question

    Give me the history of the two reservoirs in Greenwich, Connecticut that straddle the Merritt Parkway and why they decided to put the Merritt Parkway between those two reservoirs in Greenwich Connecticut

    Host voices
    Lenaplay
    Milesplay
    Learning style
    Quick
    Knowledge sources
    Why do Stamford and Greenwich send 5 million gallons of water to New York each day?
    link
    https://www.greenwichtime.com/local/article/Why-do-Stamford-and-Greenwich-send-5-million-16244805.php
    National Register of Historic Places Registration Form
    link
    https://npgallery.nps.gov/GetAsset/96eb4fba-acde-4e35-be75-4016e832b170
    Merritt Parkway, Glenville Water Company & Brook Bridge, Spanning Glenville Water Company & brook, Greenwich, Fairfield County, CT
    link
    https://loc.gov/pictures/item/ct0487/
    link
    https://tile.loc.gov/storage-services/master/pnp/habshaer/ct/ct0400/ct0484/data/ct0484data.pdf
    Babcock Preserve Greenwich
    link
    https://losthistory.net/nynjctbotany/lgtofc/babcock.html
    It’s Raining, It’s Pouring… Who is to Blame for the Drought Restrictions? | Greenwich Free Press
    link
    https://greenwichfreepress.com/around-town/its-raining-its-pouring-who-is-to-blame-for-the-drought-restrictions-74787/

    Frequently Asked Questions

    The shimmering bodies of water visible through the trees near the New York-Connecticut border are the Putnam and Rockwood reservoirs. Located in Greenwich, these reservoirs are part of a massive, hidden network designed to keep the entire region hydrated. While many drivers view them as part of the scenic landscape, they serve as a vital water supply that shares millions of gallons of water with New York every day.

    During the construction of the Merritt Parkway in the 1930s, engineers had to navigate the complex natural landscape of the Connecticut watershed. Instead of a straight line, the road takes a specific, winding path because engineers were essentially threading a needle between major water bodies. This careful planning was necessary to balance the requirements of modern transportation with the preservation of the essential Putnam and Rockwood reservoirs.

    The Merritt Parkway is often described as a cathedral of trees that provides a unique waterfront experience for drivers. While the views of the Putnam and Rockwood reservoirs feel intentional and aesthetic, the road's design was actually born from the tension of placing pavement within a sensitive watershed. Today, that stretch of road represents a specific moment in time where engineering clashing with nature resulted in a scenic commute.

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    Key Takeaways

    1

    The Secret Waters of the Greenwich Border

    2

    Threading the Needle Through a Watershed

    2:12
    2:47
    3

    The 1954 Handshake and the Shared Resource

    4

    A Vision of a Green Tunnel

    6:02
    6:31
    7:16
    5

    The Architecture of the Underpasses

    7:54
    6

    The Tension Between Speed and Scenery

    9:53
    7

    Lessons from the Merritt for Your Next Drive

    11:37
    8

    A Legacy in the Rearview Mirror

    13:23
    13:43
    14:15
    14:30

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