{ "type" : "Feature", "links" : [ { "href" : "https://geoportaal.fryslan.nl/arcgis/rest/services/CHK2/OGCFeatureServer/collections/23/items?f=application%2fjson", "rel" : "collection", "type" : "application/geo+json", "title" : "The collection document" }, { "href" : "https://geoportaal.fryslan.nl/arcgis/rest/services/CHK2/OGCFeatureServer/collections/23/items/1374?f=json", "rel" : "self", "type" : "application/geo+json", "title" : "This document as JSON" }, { "href" : "https://geoportaal.fryslan.nl/arcgis/rest/services/CHK2/OGCFeatureServer/collections/23/items/1374?f=text/html", "rel" : "alternate", "type" : "text/html", "title" : "This document as text/html" }, { "href" : "https://geoportaal.fryslan.nl/arcgis/rest/services/CHK2/OGCFeatureServer/collections/23/items/1374?f=application/geo+json", "rel" : "alternate", "type" : "application/geo+json", "title" : "This document as application/geo+json" } ], "LayerId" : 23, "LayerName" : "Dijken - oorspronkelijke functie", "id" : "1374", "properties" : { "OBJECTID" : 1374, "TOELICHTING" : "https://geoportaal.fryslan.nl/arcgis/rest/services/CHK2/MapServer/50/11/attachments/10", "ONTSTAAN" : "1200-1500", "SYSTEEM" : "Eilanden", "VERSCHIJNING" : "aangelegd", "OORSPRFUNCTIE" : "Zeedijk", "SHAPE_Length" : 979.86702001321157, "OORSPRONGOMSCHRIJVING" : "De zeedijken liggen vooral langs de huidige en voormalige kustlijnen van de Waddenzee, de Zuiderzee en de zeeboezems (Middelzee, Lauwers en Marne). Veel dijken hadden dan ook oorspronkelijk een zeewerende functie.", "OMSCHRIJVING_RIENKS_EN_WALTHER" : "Bij en oostelijk van de Anjerwei of ook wel ‘’t Zuien uit’ geheten (thans Jelmeraweg) werd de Miededijk de ‘Schottepadswalle’ genoemd; het is een ruim 250 meter lang dijkvak met afhellende vallingen zowel buiten als binnen. Waarschijnlijk heeft de dijk daar een moderner profiel gekregen na de stormen van 20 op 21 december 1862 en van 20 op 21 januari 1863, toen de aangerichte schade met rijks- en provinciale subsidie werd hersteld. Ten oosten van dat dijkvak lag voorheen een uitwateringsduiker, de Syl geheten. De dorpsdijk heeft daar het bekende profiel van een zodendijk met een steile buitenvalling, die dienst moest doen om het vee, dat in de Grie graasde, uit de Mieden te houden. De dijk is in verval, plaatselijk is hij geheel vergraven. Ongeveer 450 meter oostelijk van de Syl, dichtbij de noord-zuid lopende Miedwei, begint een grote uitbocht zuidwaarts van het dijktracé. De dijk heeft daar waarschijnlijk vroeger rechtdoor gelopen. In die richting is ongeveer 75 meter achter de bestaande dorpsdijk nog een wiel te vinden, een aanduiding van een doorbraak van de verdwenen zeewering. Midden in de bocht ligt een duiker in de dijk, Drûge Syl (Droge Zijl) geheten, omdat hij niet veel betekenis voor de afwatering had. De westelijke dijk van de westelijke Ballumer Miede zal wel als waterkering dienst hebben gedaan; hij sluit met een haakse hoek op de Oude Dijk aan, is dus jonger dan die. Op de plek, waar de Looweg de dijk van het Heershiem kruist, lag voorheen de Ballumerterp. ", "BRONNEN" : "CHK2 (Provincie Fryslân), Noordpeil, Binnendiken en Slieperdiken yn Fryslân (Ir K. A. Rienks en Ir G. L. 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