Layer Estimates:

Layer: Culverts (ID:2)
Count: 113222
Extent:

XMin: -8173131.66506263
YMin: -12122859.0943402
XMax: 4956582.80312526
YMax: 5623968.29205779
Spatial Reference: 102100 (3857)

Layer: Bridges (ID:0)
Count: 2520
Extent:

XMin: -8170304.39320609
YMin: 5272431.92195136
XMax: -7964284.4681
YMax: 5622947.7044
Spatial Reference: 102100 (3857)