====== Watershed Management ======
===== Stream Crossing Structures =====
^Size Required Culvert Dia (in) ^Area(ft2)  ^Area Above Crossing Acres |
|18                             |1.76       |7 or less                 |
|21                             |2.40       |12                        |
|24                             |3.14       |16                        |
|30                             |4.90       |27                        |
|36                             |7.06       |47                        |
|42                             |9.62       |64                        |
|48                             |12.56      |90                        |
|54                             |15.90      |120                       |
|60                             |19.63      |160                       |
|66                             |23.75      |205                       |
|72                             |28.75      |250                       |
|78                             |33.18      |350                       |