Sa longueur est de 43,091 km.
La ligne est déclarée d'utilité publique comme « ligne d'intérêt local » par la loi du 10 février 1874. Elle est classée ligne d'intérêt général le 22 juillet 1881 et concédée « à titre définitif » le 20 novembre 1883 à la Compagnie des chemins de fer de l'Ouest.
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layers":[],"overlays":[],"resizable":false,"fullscreen":true,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_de_Carentan\" title=\"Gare de Carentan\"\u003EGare de Carentan\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare de Carentan\n","link":"","lat":49.3023722,"lon":-1.2448944,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_d%27Auvers\" title=\"Gare d\u0026#39;Auvers\"\u003EGare d'Auvers\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare d'Auvers\n","link":"","lat":49.302200291181144,"lon":-1.3099040733662832,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_de_Baupte\" title=\"Gare de Baupte\"\u003EGare de Baupte\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare de Baupte\n","link":"","lat":49.304999,"lon":-1.357205,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_de_Saint-Jores\" title=\"Gare de Saint-Jores\"\u003EGare de Saint-Jores\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare de Saint-Jores\n","link":"","lat":49.300731,"lon":-1.421494,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_de_Lithaire\" title=\"Gare de Lithaire\"\u003EGare de Lithaire\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare de Lithaire\n","link":"","lat":49.296911605748534,"lon":-1.476127512091125,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_de_La_Haye-du-Puits\" title=\"Gare de La Haye-du-Puits\"\u003EGare de La Haye-du-Puits\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare de La Haye-du-Puits\n","link":"","lat":49.2952526294626,"lon":-1.547656720561804,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_de_Denneville\" title=\"Gare de Denneville\"\u003EGare de Denneville\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare de Denneville\n","link":"","lat":49.330990194877295,"lon":-1.639508217605794,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_de_Saint-L%C3%B4-d%27Ourville\" title=\"Gare de Saint-L\u00f4-d\u0026#39;Ourville\"\u003EGare de Saint-L\u00f4-d'Ourville\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare de Saint-L\u00f4-d'Ourville\n","link":"","lat":49.33560545490622,"lon":-1.6705064010392334,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_de_Portbail\" title=\"Gare de Portbail\"\u003EGare de Portbail\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare de Portbail\n","link":"","lat":49.33735090484176,"lon":-1.6924901383343922,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_de_Saint-Georges-de-la-Rivi%C3%A8re\" title=\"Gare de Saint-Georges-de-la-Rivi\u00e8re\"\u003EGare de Saint-Georges-de-la-Rivi\u00e8re\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare de Saint-Georges-de-la-Rivi\u00e8re\n","link":"","lat":49.36235171390409,"lon":-1.7326797916822443,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_de_Barneville\" title=\"Gare de Barneville\"\u003EGare de Barneville\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare de Barneville\n","link":"","lat":49.37633601748995,"lon":-1.7567072343930477,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Gare_de_Carteret\" title=\"Gare de Carteret\"\u003EGare de Carteret\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare de Carteret\n","link":"","lat":49.3796633857797,"lon":-1.7851828538948666,"icon":""}],"imageoverlays":null}