Bas1953
Dordrecht - Polder de Biesbosch - group shelters (type 1 of part II from the VIS) - (7)
Urbex Benelux -
Ensemble of concrete structures belonging to the defense line Zuidfront Vesting Holland, built between 1936 and March 1940. Now still consisting of 58 group shelters (also incorrectly called casemates or bunkers) and three casemates. The description concerns the 58 surviving group shelters and three casemates that still remain . Of the three casemates, two were converted and reused by the Germans.
Dordrecht - Polder de Biesbosch - group shelters (type 1 of part II from the VIS) - (7)
Urbex Benelux -
Ensemble of concrete structures belonging to the defense line Zuidfront Vesting Holland, built between 1936 and March 1940. Now still consisting of 58 group shelters (also incorrectly called casemates or bunkers) and three casemates. The description concerns the 58 surviving group shelters and three casemates that still remain . Of the three casemates, two were converted and reused by the Germans.