Specifications include, but are not limited to: e repair of an historic dam to include rebuilding of stacked stone walls, concrete footing and joint repairs and miscellaneous associated work ; New Wall Footings Includes all work necessary to install new wall footings per the plan. This will include installing the footing to a depth of 30” below grade, install rebar and pouring concrete per the plan. For bidding purposes, footing shall be 1 foot deep x 4 feet wide and as long as necessary. ; Build New Stone Walls Includes all work to remove existing debris, salvage useable stones, provide new stones as necessary and build new or missing sections of wall per the plan details using existing excavated material as backfill. It is assumed the new wall will be 3 feet wide x 4 feet high (above footing). ; – Rebuild Existing Walls ; nstall VDOT #1 Stone Backfill ; Mortar Repair ; Cost to Fill Undermined Areas with Concrete ;