HomeMy WebLinkAboutKing construction ess (2)TERRAGONE ENGINEERING, LLC
Marine, Civil and Coastal
Engineering & Project Management
361 NW Dewburry Terrace
Jensen Beach, FL 34957
772 291 8177
antonpe@comcast.net
March 23, 2021
St. Lucie County Building Department
2300 Virginia Ave
Ft. Pierce, FL 34982
Permit Number: 2012-0356 King Seawall, 1880 W. Midway Road
To Whom it may Concern:
We have had a discussion with BDI marine contractors regarding the seawall construction.
Our plans called for backfill compaction over the anchors to assure holding power. The
contractor utilized manta ray driven anchors tested to 12,000 lbs. This is an accepted practice
on all our walls currently and their test capacities meet our satisfaction for support of this wall.
We approve the use of the manta rays in lieu of concrete plate anchors.
Since the anchors were driven and tested, there was no backfill, so there is no need for
compaction testing. We approve waiving the compaction test requirement as there was not
substantial backfilling other than the 57 stone behind the wall for groundwater drainage.
The contractor also indicated they excavated a test pit to assess the soils for the presence of
deleterious soils. They indicate they found no muck or deleterious soils that would affect the
wall. This is further supported in that the manta rays are exhibiting substantial holding power
on load testing.
On March 23, we inspected the reinforcing steel and the concrete cap form. The steel and cap
pass inspection and are constructed as designed.
Sincerely,
Jeffrey P. Anton, PE 46527