noun
Refers to a raised structure built to hold back water or support a road, similar to 堤防 (ていぼう) but less common in everyday speech.
川の氾濫を防ぐために堤塘が築かれた。
An embankment was built to prevent the river from flooding.
その古い堤塘は今も田園風景の一部として残っている。
That old embankment still remains as part of the rural landscape.
堤防 is the common word for embankment or levee; 堤塘 is a less frequent synonym, often found in written or technical contexts.
Compound of 堤 (embankment) and 塘 (bank, dike). The exact historical derivation is uncertain, but the kanji combination directly conveys the meaning of an earthen or stone embankment.