HomeMy WebLinkAboutPresentation_Workshop_1/29/2024LIVING SHORELINES 1
2
WHAT IS SHORELINE ARMORING Florida and Palm Beach Countybeen armored, with a much higher rate in Approximately 14% of the US Coastline has erosion. land and water interface for protection
against bulkheads, retaining walls placed to separate Also known as hard infrastructure: seawalls, 3
PROBLEMS WITH SHORELINE ARMORING 4 from its location, furthering more shoreline armoring. downdriftwith erosion occurring behind and at the base. Hardened structures may also hasten
erosion All seawalls will eventually fail, high cost to repair or replace –Seawalls will eventually fail •of habitat formation. . The intertidal zone is effectively the wall itself,
with a much narrower band bulkheadeda shoreline is Loss of ecotone when Loss of habitat due to an abrupt transition from shoreline to water •armored shorelines are increasingly under
greater threat. sea levels rise and frequency of coastal flooding increases, the integrity of As big one is resiliency. The Armoring creates a fixed point in relation to rising sea
levels and coastal flooding •
5
6
7
8
9
10
11
TEQUESTA COMPREHENSIVE PLAN 12 and resources in its Code of Ordinances. Coastal Management Objective: 1.2.0 The Village shall continue to provide for the protection of estuarine water
quality •development of estuarine policies that are consistent with present management.the resources of the Loxahatchee River and Indian River Lagoon Aquatic Preserve by actively participating
in the Coastal Management Element: Policy1.1.1 The Village shall cooperate with agencies and municipalities serving to protect •stabilization, wetland preservation and wildlife and
habitat protection. resources by maintaining specific ordinances or revising existing code provisions related to water quality, shoreline Coastal Management Objective: 1.1.0 Protect
and enhance coastal and estuarine environmental quality and other natural •and the Atlantic Ocean. attention should be given to the environmentally sensitive areas abutting the Loxahatchee
River, Intracoastal Waterway development. Utilize those management practices which will alleviate residential water pollution problems. Special Policy: 1.3.2 Continue to institute policies
which minimize adverse environmental effects of residential Housing Element: •seawalls. replace deteriorated existing bulkheads and seawalls. Riprap shall be placed at the toe of all
replaced bulkheads and Bulkheads and seawalls shall be permitted only to stabilize disturbed shorelines or to Conservation Element: Policy 2.11.8 •
TEQUESTA CODE 13 elements of living shorelines when shoreline stabilization projects occur. The Town of Jupiter recently revised their shoreline stabilization code to require some •The
Village simply defers to any required state or federal permits.•construction. The Village does not currently have ANY regulations regarding bulkhead/seawall •
14 TequestaJupiterJupiterTequesta
TOWN OF JUPITER CODE 15 living shorelines requirements in canals, due to their narrowness. The Jupiter Code created a Shoreline Stabilization Exception Map, which exempts •installed
during new projects. revetments, or natural shorelines. It simply requires mangroves or riprap to be The Jupiter Code does not require anything to be done to existing bulkheads, •of
living shorelines to be installed when bulkheads or revetments were replaced. In 2015, the Town of Jupiter adopted new regulations that required some elements •
JUPITER SHORELINE STABILIZATION 16 EXCEPTION MAP
17
Existing Permitted Bulkheads (Jupiter 18 of the replacement shoreline stabilization structure. degradable materials shall be removed prior to completion Existing bulkheads constructed
of wood or other not required to install riprap or mangroves. Properties designated on the shoreline exemption map are be exempt from installing riprap or mangroves. Properties designated
on the shoreline exemption map shall high water line)and riprap are not required (if bulkhead is <3’ above mean aerial that the bulkhead existed prior to 2005, mangroves However, if
the property owner can show on a survey or the bulkhead must be faced with riprap or mangroves. of 50 percent three feet above mean high water line, then mangroves. If the top of the
new bulkhead is lower than of the bulkhead shall be faced with riprap or 100 percent feet above the elevation of the mean high water line, then If the top of the new bulkhead extends
higher than three mangroves of the bulkhead shall be faced with riprap or 100 percent feet above the elevation of the mean high water line, then If the top of the new bulkhead extends
higher than three existing bulkhead or landward. of an waterwardwithin 18 inches the new bulkhead is bulkheads may be replaced provided unpermittedExisting of an existing permitted
bulkhead or landward. waterwardwithin 18 inches the location of the new bulkhead is bulkheads may be replaced provided permitted ExistingCode)(JupiterBulkheads Existing UnpermittedCode)
BULKHEADS WITH RIPRAP AND 19 MANGROVES
JUPITER CODE: REVETMENT’S shall be removed prior to replacementAn existing revetment with unclean materials •may remain and be reinforced with riprapAn existing revetment with clean
materials •are exempt from riprap or mangroves. Properties on the shoreline exemption map •bulkheadof the new waterwardriprap or mangroves 100% of the bulkhead shall be faced with •revetment
according to the following regulations:may be replaced with a new bulkhead or Existing revetments (permitted or unpermitted), 20
JUPITER CODE: A riprap revetment may be constructed•mangroves. map are exempt from riprap or Properties on the shoreline exemption •riprap or mangroves.100% of the bulkhead shall be
faced with •following regulations:revetment, provided they meet the armored with a new bulkhead or Existing unarmored shoreline may be 21 SHORELINESUNARMORED
TEQUESTA CODE RECOMMENDATIONS 22 Like Jupiter, exclude canals from the living shorelines regulations•provide a bulkhead.of living shorelines techniques that can stabilize the shoreline
without having to Consider requiring existing natural shorelines to remain natural. There are a variety •mangroves/riprap property owners intentionally build lower bulkheads to avoid
having to install bulkhead is three feet above the mean high water line. Jupiter has found that some Consider eliminating the requirement to only provide riprap/mangroves when •Generally
mirror Town of Jupiter Code •
TEQUESTA’S SHORELINE STABILIZATION 23 EXCEPTION MAP DRAFT
24