Location: Jacksonville, Florida
|The Jacksonville Port Authority has utilized Arc Surveying & Mapping, Inc. for its pre and post dredge surveys for over fifteen (15) years. Arc is responsible for providing the port with accurate and timely survey results that are transmitted to the port Project Manager then on to the harbor pilots for navigation purposes. Pilots have a high confidence level in Arc’s surveys.
The port has many berths that are subject to rapid shoaling as sediments continuously flow down the St Johns River and its tributaries towards the port. During rainy seasons sediments can encroach at some of the berths at rapid rates and require monthly dredging to assure depths are adequate for berthing of barges and ships. Arc is on call and responds to survey requests within 24 hours. Emergencies within hours. Arc provides pre dredge survey and quantity calculations to the Port Project Manager and the port dredging contractor. At the completion of dredging, Arc performs a post dredge survey assuring project grade is achieved and computes the quantity of material excavated.
The above pre dredge survey map is typical of the survey results provided to port clients. The hydrographic survey covers the berth area and sufficient area outside the berth limits to assure there are no navigation issues. The red elevations are above project grade and must be excavated. At the conclusion of dredging Arc performs a post dredge survey. If the area is not properly excavated to grade, those elevations above grade will once again be illustrated in red. With each survey a report is furnished identifying the survey date, the type of survey (pre or post) the quantity of material above project grade to be excavated and the quantity available in the over depth. These surveys are overseen by an Arc Professional Surveyor and Mapper and Certified Hydrographer.
Relevance to this contract: