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Track: Oceanography, Coastal Zone, Marine Resources
Anura Karunamuni
State of Florida
3900 Commonwealth Boulevard
MS 320
Tallahasse, FL 32399-3000
Telephone: 904-487-4469
Fax: 904-413-9688
E-mail: KARUNAMUNI A"@ngw.dep.state.fl.us
Mark Leadon
An ArcView Application on Coastal Construction Permitting
Defining Issue: When issuing coastal construction permits for development on beachfront properties, the Florida Statutes set limitations on the seaward encroachment of these developments in order to protect beach and dune areas, as well as to protect the developments from storm damage and impacts of long-term shoreline erosion. Determination of the existing line of construction could be a difficult and cumbersome task for permitting engineers. GIS Solution: An ArcView application was developed that allows permitting engineers to delineate the line of construction and a 30-year (long-term) erosion projection and compare the location of the proposed development with these lines. Methodology: An existing building footprint theme of beachfront properties was developed using successive pairs of aerial photographs and stereoscope. The site plan of the proposed development was digitized, registered, and added as a theme to the existing building footprint theme. Historical erosion rates for the project area
are stored under a range monument theme as a table. The permitting engineers can draw the existing line of construction using the ArcView drawing tool, and they can use the ArcView measuring tool to measure the 30-year erosion projection, having known the historical erosion rate from the range monument theme table. Other related themes, including location of near shore reefs, survey control information, and land parcel boundaries, may be accessed by the permitting engineer, if needed, to evaluate environmental impacts to the beach and dune system. Software: ArcView and AutoCAD. Most of the coverages used in this application were developed as part of the "Coast of Florida Study," an ongoing multimillion dollar project cosponsored by the Florida Department of Environmental Protection, Bureau of Beaches and Coastal Systems, and the U.S. Army Corps of Engineers, Jacksonville District.
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