Wildlife guards, with or without gates, may be used to:

Prevent livestock from entering the ROW and interfering with roadway traffic;
Maintain range control; and
Reduce animal-vehicle conflicts for wildlife.

To prevent livestock and wildlife from entering the ROW, construction of wildlife guards, often accompanied by fencing at side roads and private entrances, can be a cost-effective way to improve safety on a roadway. When placed near traffic interchanges on a crossroad, wildlife guards without gates should be placed at or near the access control line to prevent livestock and wildlife from entering a main roadway. The number of units will be determined by the width of the roadway, the number of private drives that need to access State ROW, and the types of wildlife or livestock that may enter the ROW. Some Districts have developed new types of wildlife guards with different types of bars and checked grates to reduce wildlife egress from private driveways. Designers can work with their District Environmental Coordinators and the ENV Division to determine the appropriate types of wildlife guards and fencing. See for an example of a grated wildlife guard and for an example of a round bar wildlife guard.