Excavated Backfill Materials
Backfilling and Compacting
Drain Tile Repairs
Contractor shall use good engineering and construction practices to minimize damage to existing drainage tiles and waterways in order to minimize damage to existing drainage. Contractor shall consult with landowners to determine locations of existing tiles, if known, prior to construction.
In the event that Contractor damages drainage tiles or waterways during construction, Contractor shall repair or replace the damaged tiles and restore the damaged waterways, either at their original location or at such other location as will accomplish their original purpose.
Suitable fill material shall be placed under the repaired or replaced tile to minimize settling.
Contractor shall coordinate drainage tile repair such that Landowner’s representative may observe such work by Contractor, provided such representative must be available in accordance with Grantee’s construction schedule.
All underground power lines (including ground cables) shall be installed at least 4 feet below finished ground elevation. During construction, if Contractor encounters underground drainage tiles while trenching for underground lines, Contractor shall install underground lines below the drainage tiles unless the drainage tiles are 6 feet or more below the surface, in which case the underground lines shall be installed above the drainage tiles.
Upon Completion of the work, Contractor shall provide a site map showing the "as built" location of the underground transmission lines on the Property.
Backfill Compaction Test
Compaction tests shall be performed at a depth of one and 1.5 feet above the cables and 3 feet above the cables.
Compaction tests shall be performed every 500 feet for the first mile and every mile thereafter.
Care is to be taken when compacting under, alongside, and immediately above the cable to avoid crushing the insulation and to preserve the trefoil configuration of the cable.
Compaction Test Failure
If the required state of compaction is not obtained, it shall be the responsibility of the Contractor to re-compact or rework the material to the required state of compaction. In cases where there is a failure to achieve the required state of compaction it may be required that the backfill be removed and re-compacted or replaced at the discretion of Engineer and/or Owner.