2004-018B - Laserfiche WebLink

Home Browse Search

Permittee : Indian River County Beach Restoration Permit No : 01669294014C Page 15 of 17 0 accordance with the latest update of the BBWR Statewide Coastal Monitoring Program, Regional Data Collection and Processing Plan, Monitoring Plan Technical Specifications for Topographic and Bathymetric Surveying. b. Bathymetric surveys of the borrow area(s) shall be conducted within 90 days prior to commencement of construction, and within 60 days following completion of construction of the project concurrently with the beach and offshore surveys required above . Thereafter, monitoring surveys of the borrow areas shall be dependent on their location. Borrow sites located in tidal inlet shoals or in nearshore waters above the depth of closure for littoral transport processes shall be at two (2) year intervals concurrently with the beach and offshore surveys required above . These biennially monitoring surveys are not required for borrow sites located below the depth of closure for littoral transport processes . A prior design survey of the borrow area may be submitted for the pre-construction survey if consistent with the other requirements of this condition. Survey grid lines across the borrow area(s) shall be spaced to provide sufficient detail for accurate volumetric calculations but spaced not more than a maximum of 500 feet apart, and shall extend a minimum of 500 feet beyond the boundaries of the borrow site . For borrow sites located in tidal inlet shoals, bathymetric surveys of the entire shoal complex, including any attachment bars, shall be conducted unless otherwise specified by the Department based upon the size of the shoal and the potential effects of the dredging on inlet processes . In all other aspects, work activities and deliverables shall be consistent with the BBWR Statewide Coastal Monitoring Program, Regional Data Collection and Processing Plan, Monitoring Plan Technical Specifications for Bathymetric Surveying. c . Aerial photography of the beach shall be taken concurrently with the post-construction survey and each annual and biennial monitoring survey required above, as close to the date of the beach profile surveys as possible, and during approximate low water tide on that date. The limits of the photography shall include the surveyed monitoring area as described above. The photography shall be color vertical photos with a 30% forward overlap, taken from an elevation of 3 , 000 feet ( 1 : 6,000 negative scale) and centered on the local shoreline . A digital scan of the color photos at a rate of 21 microns with a pixel size of 0 .4 feet shall be made and submitted in TIF format (uncompressed) on CD or DVD . d. The permittee shall submit an engineering report and the monitoring data to the Office of Beaches and Coastal Systems within 90 days following completion of the post-construction survey and each annual or biennial monitoring survey. The survey data and control information should be submitted on electronic media such as floppy disk, or CD-ROM, in an ASCII format stored as specified in the Statewide Coastal Monitoring Program, Regional Data Collection and Processing Plan, Monitoring Plan Technical Specifications. The report shall summarize and discuss the data, the performance of the beach fill project, and identify erosion and accretion patterns within the monitored area. In addition, the report shall I nclude a comparative review of project performance to performance expectations and identification of adverse impacts attributable to the project.