Layer Estimates:

Layer: Lock (sluis) (ID:0)
Count: 3
Extent:

XMin: 201944.093600001
YMin: 550193.477600001
XMax: 213496.3959
YMax: 556862.067499999
Spatial Reference: 28992 (28992)

Layer: Pumping station (gemaal) (ID:1)
Count: 6
Extent:

XMin: 201986.2546
YMin: 550246.6963
XMax: 213494.481699999
YMax: 556860.7348
Spatial Reference: 28992 (28992)

Layer: Fish passage (vispassage) (ID:2)
Count: 13
Extent:

XMin: 202551.801600002
YMin: 550916.874299999
XMax: 215370.775400002
YMax: 559615.0869
Spatial Reference: 28992 (28992)

Layer: Weir (stuw) (ID:3)
Count: 38
Extent:

XMin: 201997.460200001
YMin: 550260.840799998
XMax: 217871.7848
YMax: 560208.937199999
Spatial Reference: 28992 (28992)

Layer: Tjonger upper stream (ID:4)
Count: 6
Extent:

XMin: 213090.952100001
YMin: 553932.943599999
XMax: 218604.074000001
YMax: 561039.648899999
Spatial Reference: 28992 (28992)

Layer: Tjonger middle stream (ID:5)
Count: 1
Extent:

XMin: 201897.868099999
YMin: 550135.128400002
XMax: 213403.225200001
YMax: 556863.348999999
Spatial Reference: 28992 (28992)

Layer: Research area (ID:6)
Count: 1
Extent:

XMin: 199552.4474
YMin: 547015.490899999
XMax: 224936.226300001
YMax: 565007.193500001
Spatial Reference: 28992 (28992)