| Construction project: ARGE Post / Bohlen & Doyen, basic repair of the revetment at the west dike on Norderney 2021 | |
| Client: NLWKN operating station Norden/Norderney | |
| Construction period: 03/2021 – 12/2021 | |
| Construction project: ARGE Post / Bohlen & Doyen, basic repair of the revetment at the west dike on Norderney 2021 | |
| Client: NLWKN operating station Norden/Norderney | |
| Construction period: 03/2021 – 12/2021 | |