Permanent VS Temporary Crossings

Permanent Crossings
Crossings which are intended to be left in place to allow for access to the tract with as little impact to water quality as possible.

Temporary Crossings
Crossings that are installed for a short period to allow access to the tract during an operation, and are removed after the operation is complete. Often the types of materials used to construct a temporary crossing are very different from those used to construct a permanent crossing. Logging mats, logs, or brush are common materials used to construct a temporary crossing. Temporary crossings can obstruct or alter channel flow, so it is very important to remember to remove a temporary crossing after it is no longer needed.