If you have land alteration or construction activities on a property, we require you to use protective barriers around trees and natural areas that will remain on the site.
Why do I need barriers?
We require barriers for three main reasons:
- To protect all above-ground portions of trees and other significant vegetation from mechanical damage
- To protect root systems from compaction
- To provide awareness of protected areas to equipment operators
What are the requirements?
- You must keep the barriers in place until you finish the land alteration and construction activities or until you start grade finishing and/or sodding
- You can’t disturb the ground within the barricaded area
- The canopy dripline, which is the imaginary, vertical line that extends downward from the outermost tips of the tree’s branches to the ground
- Your barrier needs to restrict access within the canopy dripline
- Place a physical structure not less than 3 feet in height, comprised of wood or other suitable material around the tree at the canopy dripline, except where land alteration or construction activities are approved within the canopy dripline
- Barrier specifications – choose one of the following:
- Four corner upright stakes of no less than 2” x 2” lumber connected by horizontal members of no less than 1” x 4” lumber
- Upright stakes spaced at 5 foot intervals of no less than 2” x 2” lumber connected by silt screen fabric or material of comparable durability
- Natural area
- You may have some natural areas where the permit we issue restricts land alteration and construction activities
- You must place a physical structure no less than 3 feet in height along the perimeter of these restricted areas
- Barrier specifications:
- Upright stakes of no less than 2 ”x 2” lumber spaced no more than 25 feet apart and connected by twine flagged with plastic surveying tape at regular intervals of 5 to 10 feet
- We will consider other barrier methods depending upon the characteristics of the site
- Barricade specifications with drawing
- Barricade Inspection Affidavit of Compliance
- Approved ornamental trees
- Approved shade trees
- Approved street trees
- Approved hedge list
- Grand oak regulations
- Grand oak pruning affidavit
- Trees exempt from needing a permit for removal
- Tree removal permit
For more information call the Natural Resource Unit at (813) 276-8399.