Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Discover
Places to see
France
Manche
Avranches
Le Mont-Saint-Michel

The dam on the Couesnon

Highlight • Other

The dam on the Couesnon

Recommended by 120 road cyclists out of 122

This Highlight is in a protected area

Please check local regulations for: Baie du Mont Saint Michel

Save

Share

  • More

  • Save

    Share

  • More

  • Take Me There

    Routes here

    Best Road Cycling Rides to The dam on the Couesnon

    4.5

    (26)

    571

    riders

    1. Le barrage sur le Couesnon – The Bay of Mont-Saint-Michel loop from La Gouesnière - Cancale - Saint-Méloir-des-Ondes

    78.7km

    03:17

    150m

    150m

    Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

    Navigate

    Send to Phone

    Moderate

    Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

    Moderate

    Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

    Moderate

    Tips

    July 23, 2020

    This dam, built as part of the work to restore the island character of Mont Saint Michel, aims to flush out the sediment accumulated around the mountain and thus lower the level of the shores.
    At high tide, the floodgates are opened to allow water to rise into the Couesnon River. This water is then released at low tide to create a "flushing" effect that pushes the sediment away.
    projetmontsaintmichel.com/organisez_votre_visite/lachers_d_eau_du_barrage.html

    Translated by Google •

      July 8, 2021

      Recent dam to solve the problem of silting up the mountain.

      Translated by Google •

        May 12, 2025

        Spectacular technology and architecture fusion, worth spending 20-30 min to admire

          In the know? Log-in to add a tip for other adventurers!

          Sign up for free

          Details

          Informations

          Elevation 0 m

          Weather

          Powered by AerisWeather

          Today

          Tuesday 11 November

          17°C

          12°C

          10 %

          If you start your activity now...

          Max wind speed: 20.0 km/h

          Most visited during

          January

          February

          March

          April

          May

          June

          July

          August

          September

          October

          November

          December

          Loading

          Location: Le Mont-Saint-Michel, Avranches, Manche, France

          Other Popular Places to Check Out

          Footbridge to Mont Saint-Michel

          Explore
          RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepacking
          Download the app
          Follow Us on Socials

          © komoot GmbH

          Privacy Policy