What work near a levee or channel requires a permit?

Any type of permanent structure or construction located on the levee or channel easement requires a permit; any work within 300 feet of a levee requires a letter of no objection from the U.S. Army Corps of Engineers (USACE); any excavation within 600 feet of the levee toe will require evaluation from the USACE; the BLD and the USACE must be notified of any subsurface work with 1500 feet of a levee and of any seismic work within 5000 feet of levee.  All requests for permits or letters of no objection should first be forwarded to the BLD Office.