State of Conservation (SOC)
Everglades National Park (2007)
Desired state of conservation for the removal of the property from the List of World Heritage in Danger
Threats for Which the property was inscribed on the List of World Heritage in Danger
- Urban encroachment;
- Agricultural fertiliser pollution;
- Mercury contamination of fish and wildlife;
- Lowered water levels due to flood control measures;
- Damage from Hurricane Andrew in 1992.
UNESCO Extra-Budgetary Funds
International Assistance granted to the property
Total Amount Ap proved:0USD
IUCN mission to identify benchmarks and corrective measures, April 2006;
Factors* affecting the property identified in previous reports
a) Quantity and quality of water entering the park;
b) Continued urban growth on the eastern boundary of the park and potential expansion of the urban development boundary.
The following corrective measures were proposed by the State Party, in consultation with IUCN in relation to the key threats to the property:
1. Alteration of the Everglades National Park hydrological regimes
1.1) All East Everglades Land Acquisition complete (approximately 44,000 hectares)
1.2) Complete Water Control Plan (CSOP Final EIS) and complete 8.5 Square Mile Area Construction
1.3) Construction projects for the L-67A and C and L-29 water conveyance structures, Tamiami Trail Bridges, and road modifications are all underway
2. Adjacent urban and agricultural growth
2.1) Complete C-111 land exchange between the South Florida Water Management District and the US Government
2.2) Complete the Water Control Plan (CSOP Final EIS)
2.3) Complete the construction of the C-111 Detention Area features from the 8.5 Square Mile Area to Frog Pond
3. Agriculture and urban runoff phosphorous limits
3.1) Meet or exceed the interim and long-term phosphorous reduction limits for water flowing into Shark River Slough and the long-term phosphorous reduction limits for water flowing into the Taylor Slough/Coastal Basin areas in Everglades National Park.
4. Protection and management of Florida Bay
4.1) Complete the construction of the C-111 Detention Area features from the 8.5 Square Mile Area to Frog Pond and implement CSOP operations
4.2) Complete the C-111N Spreader Canal and revised operations
Current conservation issues
The State Party submitted its report on 1 February 2007, on progress achieved in implementing the corrective measures cited above. The report also gives indications on planned timeframes for the different actions. The key points are:
a) Alteration of the Everglades National Park hydrological regimes
There have been significant allocations (USD 253 million) for a range of ecosystem restoration projects in the 2007 fiscal year. These will support continued construction of the Modified Water Deliveries Project (Mod/Waters) to restore water flows into the park. The funding will also support specific restoration activities within the Everglades National Park. The US Army Corps of Engineers is continuing its efforts to increase water flows into the Park’s largest drainage basin, Shark Slough. Cost estimates to complete the remaining Mod/Waters project features have increased by USD 196 million since the 1996 status report. The State Party considers current project appropriations to be adequate to complete all three of planned corrective measures (1.1, 1.2; 1.3) by 2011.
b) Adjacent urban and agricultural growth
A series of hydrological restoration actions have been undertaken in the Taylor Slough and Eastern Panhandle watersheds to restore a more natural water flow regime through Taylor Slough and into North Eastern Florida Bay. The Corps revised C-111 plan and recommended a series of actions to maintain the currently authorised levels of flood protection for adjacent agricultural areas, while limiting groundwater losses from the property’s wetlands. By 2006, the majority of the C-111 project features were completed, while construction of the central detention area was delayed by a required land exchange between the National Parks Services (NPS) and the South Florida Water Management District. This land exchange was completed in 2006, and all remaining corrective measures (2.1; 2.2; 2.3) are scheduled for completion by November 2011.
The majority of the park is within the Miami-Dade County. Population growth rates have been estimated at more than 3% within Southern Miami-Dade, with an anticipated 600,000 additional people by 2025 and 1.2million by 2050. To date intensive residential development has largely been confined within an Urban Development Boundary (UDB). The current plan is to place all of the projected new dwelling units inside the UDB and 60% of the new dwelling units within the UDB after 2026, in order to preserve the County’s remaining wetlands, farmlands and open space. These proposals are included within a South Miami-Dade Watershed Study, which is scheduled for completion in 2007.
It is noted that the development of the Watershed Study is an important initiative. IUCN recommends that the UDB not be expanded, and that recommendations be adopted which protect the UDB in Miami-Dade County and which minimise the impact of urban growth pressures in Southwest Florida on the Everglades National Park. Maximising open space and farmland adjacent to the Everglades National Park is important, as this will reduce the pressure to further lower canal water levels, thus better protecting the wetlands and natural habitats within the park.
c) Agriculture and urban runoff phosphorous limits
Interim and long term phosphorous limits have been established for water flowing into Shark River Slough and the Taylor Slough/Coastal Basins of Everglades National Park, with long term compliance required by 31 December 2006. Regular monitoring activities and reporting continue to document a general trend of reductions in phosphorous levels for waters discharged into the Everglades. Water quality presently entering Taylor Slough and the coastal basins (corrective measure 3.1) is well below the long term limit. However, recent data indicate that inflows to Everglades National Park in Shark River Slough are extremely close to or exceed the long term phosphorous limits.
Actions to improve the quality of water entering the Everglades National Park, particularly water entering the Shark River Slough, should be continued.
d) Protection and management of Florida Bay
Expanding development along the lower east coast of Florida has led to massive diversions of storm water into the Atlantic Ocean, and away from the southern Everglades. These diversions reduced fresh water inflows to Florida Bay resulting in increased salinity, especially close to the near shore embayment of central Florida Bay. Plans to increase water deliveries to Florida Bay and improving the quality, timing and distribution of flows into the Bay are focused on water management improvements to Taylor Slough. These plans are focussed around completion of on-going C-111 projects (4.1; 4.2), which is expected by 2012.
IUCN recommends that the impacts of these activities on the water quality and salinity in Florida Bay continue to be carefully monitored. IUCN also notes the need for continuing attention to managing and reducing the number and impact of boaters in Florida Bay, within the park’s current general management planning process.
It is noted that progress is being achieved in relation to the Comprehensive Everglades Restoration Plan (CERP) adopted in 2000 and in implementing the corrective measures adopted as benchmarks at the 2006 World Heritage Committee. CERP is the world’s largest environmental restoration project and aims to re-establish natural water flows to the greater Everglades ecosystem. It will take the next 30-40 years to fully implement and has a currently estimated cost of USD 10.5 billion. This figure does not include a separate USD 1.1 billion budget for the clean-up of pollution in the Everglades.
It will be important to continue to monitor the impact of the restoration activities on the status of OUV of the property, including key species in the Everglades National Park, such as populations of the Cape Sable seaside sparrow, the wood stork and the manatee. Development of benchmarks related to the OUV should be used to assess the effectiveness of achievement of the corrective measures for this property.
Analysis and Conclusion
Link to the decision
The World Heritage Committee,
- Having examined Document WHC-07/31.COM/7A,
- Recalling Decision 30 COM 7A.14 adopted at its 30th session (Vilnius, 2006),
- Commends the State Party for the considerable efforts and investments made in the restoration and conservation of the Everglades National Park;
- Notes the progress made in implementing the corrective measures adopted by the Committee at its 30th session (Vilnius, 2006);
- Encourages the State Party to continue its commitment to the restoration and conservation of the property and to provide the required financial resources for the full implementation of activities associated with the Comprehensive Everglades Restoration Plan (CERP);
- Requests the State Party, in consultation with the World Heritage Centre and IUCN, to develop a draft statement of the desired state of conservation for the property based on its Outstanding Universal Value;
- Also requests the State Party to provide the World Heritage Centre with an updated report by 1 February 2008 on the progress made in the restoration and conservation of the property, including the progress towards the implementation of the corrective measures, for examination by the Committee at its 32nd session in 2008;
- Decides to remove Everglades National Park (United States of America) from the List of World Heritage in Danger.
Link to the decision
The World Heritage Committee,
1.Following the examination of the state of conservation reports of properties inscribed on the List of World Heritage in Danger (WHC-07/31.COM/7A and WHC-07/31.COM/7A.Add, WHC-07/31.COM/7A.Add.2, WHC-07/31.COM/7A.Add.3),
2.Decides to remove the following properties from the List of World Heritage in Danger:
- Benin, Royal Palaces of Abomey (Decision 31 COM 7A.14)
- Honduras, Río Plátano Biosphere Reserve (Decision 31 COM 7A.13)
- Nepal, Kathmandu Valley (Decision 31 COM 7A.23)
- United States of America, Everglades National Park (Decision 31 COM 7A.12)
Draft Decision: 31 COM 7A.12
The World Heritage Committee,
1. Having examined Document WHC-07/31.COM/7A,
2. Recalling Decision 30 COM 7A.14 adopted at its 30th session (Vilnius, 2006),
3. Commends the State Party for the considerable efforts and investments made in the restoration and conservation of the Everglades National Park;
4. Notes the progress made in implementing the corrective measures adopted by the Committee at its 30th session (Vilnius, 2006) which will guide decisions on a possible removal of the property from the List of World Heritage in Danger, as well as the timeframes proposed by the State Party;
5. Encourages the State Party to continue its commitment to the restoration and conservation of the property and to provide the required financial resources for the full implementation of activities associated with the Comprehensive Everglades Restoration Plan (CERP);
6. Requests the State Party, in consultation with the World Heritage Centre and IUCN, to develop benchmarks for the property based on its outstanding universal value;
7. Also requests the State Party to provide the World Heritage Centre with an updated report by 1 February 2008 on the progress made in the restoration and conservation of the property, including the progress towards the implementation of the corrective measures, for examination by the Committee at its 32nd session in 2008;
8. Decides to retain Everglades National Park (United States of America) on the List of World Heritage in Danger.
United States of America
View inscribed site documents, nomination file, reports, decisions, ...
SOC Reports2014 2013 2012 2011 2010 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1989
Detailed List of SOC reports
Inscription on the Danger ListYear: 2010
Threats to the Site:
The property was re-inscribed on the List of World Heritage in Danger, on the request of the State Party, due to concerns that the property's aquatic ecosystem continues to deteriorate, in particular as a result of:
- Alterations of the hydrological regime (quantity, timing, and distribution of Shark Slough inflows);
- Adjacent urban and agricultural growth (flood protection and water supply requirements that affect the property's resources by lowering water levels);
- Increased nutrient pollution from upstream agricultural activities;
- Protection and management of FloridaBay resulting in significant reduction of both marine and estuarine biodiverstiy.
Year: 1993 -2007
Threats to the Site:
The site was inscribed on the List of the World Heritage in Danger in 1993 after the park's Superintendent informed the Committee of extensive damage to Everglades' ecology due to a number of causes including:
- nearby urban growth,
- pollution from fertilisers,
- mercury poisoning of fish and wildlife,
- a fall in water levels caused by flood protection measures.
In addition, on 24 August 1992, Hurricane Andrew altered much of Florida Bay and its ecological systems and destroyed the park's visitor centre.
The threats indicated are listed in alphabetical order; their order does not constitute a classification according to the importance of their impact on the property.
Furthermore, they are presented irrespective of the type of threat faced by the property, i.e. with specific and proven imminent danger (“ascertained danger”) or with threats which could have deleterious effects on the property’s Outstanding Universal Value (“potential danger”).