Fencing is used for safety in some rights-of way that are shared with other vehicles. Fencing is also used in some locations to protect private property, particularly in densely developed urban areas.

How the Default Unit Cost was Determined

The per mile cost of 6-foot black vinyl chain link fence with a top rail was estimated using a suppliers on-line calculator. The estimated cost was $43,000/ mile uninstalled. The estimated cost of installation was estimated at $24,000/ mile. The installation cost assumes a five-person crew for two weeks at $2,400/ day.