CURRENT MHHW
ELEVATION 6 (NAVD 88)
MHHW = MEAN HIGHER HIGH WATER = The average of the higher high water height of each tidal day observed over the standard 19 year observation period. MHHW FREQUENCY = 50 times per year MHHW DURATION = 2.2 hours per event
INTERTIDAL ZONE IS TEMPORARILY COMPROMISED ON THE PROMENADE SIDE OF THE MARSH.
CURRENT KING TIDE
ELEVATION 7 (NAVD 88)
KING TIDE = A colloquial term for an especially high tide above a certain elevation. It refers to a combined effect of lunar and solar alignment on the same side of earth, including other effects such as storms. In the context of Crissy Field, once a tide surpasses Elevation 7, it is considered a King Tide. KING TIDE FREQUENCY = 6-8 times per year KING TIDE DURATION = 1.5 hours per event
WAVES BREAK HIGH ON THE SEAWALL.
MARSH TIDES ARE CLOSE TO OVERFLOWING AT THE MASON STREET.
CURRENT 100YR TIDE
EXPOSED AND HIGH TIDES REACH SEATWALL.
PINCH POINT AT EAST BEACH BECOMES MORE NARROW.
ELEVATION 9 (NAVD 88)
100YR TIDE EVENT = A flood height that statistically has a 1-percent chance of occurring in any given year. 100YR TIDE EVENT FREQUENCY = statistically, once every 100 years 100YR TIDE EVENT DURATION = 2 hours per event
K-RAIL
CURRENT
CRISSY FIELD SEA LEVEL RISE CALIFORNIA STATE COASTAL CONSERVANCY CLIMATE READY GRANT COMMUNITY STAKEHOLDER MEETING JANUARY 30, 2016
BEACH PINCH POINT BECOMES MORE NARROW AND BEACH RETREATS TOWARDS DUNES.
MARSH INTERTIDAL ZONE BEGINS TO NARROW. SUBTIDAL ZONE INCREASES.
EAST BEACH PINCH POINT BECOMES MORE NARROW. BEACH WILL RETREAT TOWARDS PROMENADE.
1 FT SLR ABOVE CURRENT MHHW
ELEVATION 7 (NAVD 88)
MHHW = MEAN HIGHER HIGH WATER = The average of the higher high water height of each tidal day observed over the standard 19 year observation period.
INTERTIDAL ZONE
BEACH RETREAT TOWARDS DUNES
MHHW FREQUENCY = 50 times per year MHHW DURATION = 2.2 hours per event
BEACH RETREATS TOWARD DUNES.
HIGH TIDES COMPROMISE THE SEATWALL FOUNDATION.
TEMPORARY INUNDATION OF INTERTIDAL ZONE.
1 FT SLR ABOVE CURRENT KING TIDE
ELEVATION 8 (NAVD 88)
KING TIDE = A colloquial term for an especially high tide above a certain elevation. It refers to a combined effect of lunar and solar alignment on the same side of earth, including other effects such as storms. In the context of Crissy Field, once a tide surpasses Elevation 7, it is considered a King Tide.
east beach flood
KING TIDE FREQUENCY = 6-8 times per year KING TIDE DURATION = 1.5 hours per event
WAVES BREAK HIGH ON THE SEAWALL AND SPILL OVER WALL.
WAVES BREACH SEAWALL. DUNES UNDER WATER FROM HIGH TIDE. POSSIBLE SAND DEPOSITION ON THE PROMENADE.
WILDLIFE PROTECTION AREA TEMPORARILY INUNDATED. PARKING AT THE GREATER FARALLONES NATIONAL MARINE SANCTUARY CAMPUS UNDER WATER. PROMENADE UNDER WATER. MASON STREET STORM DRAINS BEGIN TO BUBBLE UP FROM HIGH TIDE.
1 FT SLR ABOVE CURRENT 100 YR TIDE
OVERLOOK UNDER WATER. TEMPORARY LOSS OF INTERTIDAL ZONE.
BEACH ACCESS TEMPORARILY LOST.
ELEVATION 10 (NAVD 88)
100YR TIDE EVENT = A flood height that statistically has a 1-percent chance of occurring in any given year. 100YR TIDE EVENT FREQUENCY = statistically, once every 100 years 100YR TIDE EVENT DURATION = 2 hours per event
#3
1 FT SLR
CRISSY FIELD SEA LEVEL RISE CALIFORNIA STATE COASTAL CONSERVANCY CLIMATE READY GRANT COMMUNITY STAKEHOLDER MEETING JANUARY 30, 2016
MAJORITY OF INTERTIDAL ZONE LOST ON A DAILY BASIS.
BEACH RETREATS TOWARDS DUNES. DUNES BECOME MORE NARROW AND SHORTER.
BEACH WILL RETREAT TOWARDS PROMENADE. ANGLE OF BEACH WILL BECOME MORE SHALLOW. SEATWALL FOUNDATION POSSIBLY EXPOSED.
ELEVATION 8 (NAVD 88)
2 FT SLR ABOVE CURRENT MHHW MHHW = MEAN HIGHER HIGH WATER = The average of the higher high water height of each tidal day observed over the standard 19 year observation period. MHHW FREQUENCY = 50 times per year MHHW DURATION = 2.2 hours per event
MARSH TEMPORARILY FILLS AND BECOMES SUBTIDAL.
WATER LEVEL COMES CLOSE TO THE OVERLOOK ELEVATION
SEATWALL FOUNDATION POSSIBLY EXPOSED RIP RAP WALL BREACHED
ELEVATION 9 (NAVD 88)
2 FT SLR ABOVE CURRENT KING TIDE KING TIDE = A colloquial term for an especially high tide above a certain elevation. It refers to a combined effect of lunar and solar alignment on the same side of earth, including other effects such as storms. In the context of Crissy Field, once a tide surpasses Elevation 7, it is considered a King Tide. KING TIDE FREQUENCY = 6-8 times per year KING TIDE DURATION = 1.5 hours per event
HIGHER PROBABILITY OF WAVES CRASHING OVER THE SEAWALL
HALLECK STREET TEMPORARILY BLOCKED. WAVES BREACH SEAWALL, PROMENADE AND WEST BLUFF TRIANGLE SUBMERGED.
QUARTERMASTER REACH SUBMERGED.
WILDLIFE PROTECTION ZONE HABITAT TEMPORARILY SUBMERGED. GREATER FARALLONES NATIONAL MARINE SANCTUARY CAMPUS INUNDATED. AIRFIELD AND PROMENADE UNDER WATER. MASON STREET STORM DRAINS BUBBLE UP
2 FT SLR ABOVE CURRENT 100 YR TIDE
DUNES UNDER WATER. SAND DEPOSITS ON THE PROMENADE.
NEW LEARNING LANDSCAPE AND PRESIDIO PARKLANDS INUNDATED.
EAST BEACH TEMPORARILY UNDERWATER. EAST BEACH DRAINS BUBBLE UP. PARKING LOT TEMPORARILY INUNDATED. MASON STREET AND MARINA BOULEVARD UNDER WATER.
CYPRESS GROVE COMPROMISED
SPORTS BASEMENT PARKING UNDER WATER.
ELEVATION 11 (NAVD 88)
100YR TIDE EVENT = A flood height that statistically has a 1-percent chance of occurring in any given year. 100YR TIDE EVENT FREQUENCY = statistically, once every 100 years 100YR TIDE EVENT DURATION = 2 hours per event
2 FT SLR
CRISSY FIELD SEA LEVEL RISE CALIFORNIA STATE COASTAL CONSERVANCY CLIMATE READY GRANT COMMUNITY STAKEHOLDER MEETING JANUARY 30, 2016
BEACH RETREATS TOWARDS DUNES. DUNES BECOME SHORTER AND NARROWER AND ARE BLOCKED BY THE PROMENADE. SAND DEPOSITS ON THE PROMENADE FROM LACK OF DUNE PROTECTION.
INTERTIDAL ZONE LOST. MARSH IS SUBTIDAL.
BEACH WILL RETREAT TOWARDS PROMENADE. BEACH ANGLE OF REPOSE WILL BECOME MORE SHALLOW. SEATWALL FOUNDATION WILL BE UNDERMINED. DUNE WILL BECOME NARROWER AND SHORTER.
ENTRY TO EAST BEACH INUNDATED.
3 FT SLR ABOVE CURRENT MHHW
ELEVATION 9 (NAVD 88)
MHHW = MEAN HIGHER HIGH WATER = The average of the higher high water height of each tidal day observed over the standard 19 year observation period. MHHW FREQUENCY = 50 times per year MHHW DURATION = 2.2 hours per event
king tide folder - marsh
WILDLIFE PROTECTION AREA COMPROMISED MORE FREQUENTLY. WILL BE MORE DIFFICULT TO MAINTAIN ROCKY BREEDING SHORES.
BEACH AND DUNES INUNDATED. DUNES WILL HAVE MORE DIFFICULTY REGENERATING. MORE SAND WILL BE DEPOSITED ON THE PROMENADE.
GREATER FARALLONES NATIONAL MARINE SANCTUARY CAMPUS AND PROMENADE ENTRANCE COMPROMISED. MASON DRIVE STORM DRAINS BUBBLE UP FROM HIGH TIDES.
3 FT SLR ABOVE CURRENT KING TIDE
OVERLOOK COMPROMISED.
EAST BEACH SUBMERGED MORE FREQUENTLY. LONGER PERIODS WHEN BEACH WILL BE CLOSED TO ACTIVE RECREATION AND FAMILIES.
ELEVATION 10 (NAVD 88)
KING TIDE = A colloquial term for an especially high tide above a certain elevation. It refers to a combined effect of lunar and solar alignment on the same side of earth, including other effects such as storms. In the context of Crissy Field, once a tide surpasses Elevation 7, it is considered a King Tide. KING TIDE FREQUENCY = 6-8 times per year KING TIDE DURATION = 1.5 hours per event
WAVES WILL CRASH OVER THE SEAWALL. 11 FT OF WAVE RUNUP EXPECTED.
WEST BLUFF PICNIC AREAS, PARKING, WARMING HUT, AND PROMENADE INUNDATED. WILDLIFE PROTECTION AREA TEMPORARILY SUBMERGED. AIRFIELD AND HANGARS COMPROMISED. GREATER FARALLONES NATIONAL MARINE SANCTUARY CAMPUS TEMPORARILY CLOSED. BEACH AND DUNES SUBMERGED. PROMENADE SUBMERGED.
3 FT SLR ABOVE CURRENT 100 YR TIDE
MARSH OVERFLOWS TO MASON STREET. MASON STREET STORM DRAINS BUBBLE UP FROM HIGH TIDES. NEW LEARNING LANDSCAPE AND PRESIDIO PARKLANDS OVERLOOKS UNDER WATER. IMPACT TO HALLECK STREET CONNECTION. QUARTERMASTER REACH INUNDATED.
EAST BEACH PARKING, PICNIC AREAS DUNE SWALE, SEATWALL, BATHROOMS, DUNES, BEACH, ENTRY DRIVES, AND ENTRY GROVE TEMPORARILY SUBMERGED. DOYLE DRIVE CONNECTION TO GOLDEN GATE BRIDGE SUBMERGED. MARINA INUNDATED.
ELEVATION 12 (NAVD 88)
100YR TIDE EVENT = A flood height that statistically has a 1-percent chance of occurring in any given year.
DOYLE DRIVE CONNECTION
100YR TIDE EVENT FREQUENCY = statistically, once every 100 years 93
100YR TIDE EVENT DURATION = 2 hours per event
PRESIDIO POINT
3 FT SLR
CRISSY FIELD SEA LEVEL RISE CALIFORNIA STATE COASTAL CONSERVANCY CLIMATE READY GRANT COMMUNITY STAKEHOLDER MEETING JANUARY 30, 2016
WAVES WILL CREST OVER SEAWALL FREQUENTLY.
WEST BLUFF PICNIC AREAS, PARKING, AMPHITHEATER, AND WARMING HUT ACCESS LOST.
MARSH IS SUBTIDAL. HABITAT LOST.
QUARTERMASTER REACH IS SUBTIDAL. HABITAT LOST.
WILDLIFE PROTECTION AREA LOST. GREATER FARALLONES NATIONAL MARINE SANCTUARY CAMPUS CLOSED.
MASON STREET AND HANGARS FREQUENTLY INUNDATED.
PRESIDIO PARKLANDS IS FREQUENTLY INUNDATED.
EAST BEACH ACTIVITY IS HEAVILY DISRUPTED DUE TO CONSTANT HIGH TIDES. EAST BEACH ACCESS IS CLOSED.
BEACH AND DUNES ARE LOST.
DOYLE DRIVE CONNECTION IS UNDER WATER.
PROMENADE IS COMPLETELY SUBMERGED.
ELEVATION 12 (NAVD 88)
6 FT SLR ABOVE CURRENT MHHW MHHW = MEAN HIGHER HIGH WATER = The average of the higher high water height of each tidal day observed over the standard 19 year observation period. MHHW FREQUENCY = 50 times per year MHHW DURATION = 2.2 hours per event
FREQUENT INUNDATION AT THE HANGARS WOULD CAUSE PERMANENT DAMAGE.
HISTORIC AIRFIELD WOULD BE FREQUENTLY SUBMERGED. ACCESS TEMPORARILY LOST. FREQUENT INUNDATION AT THE HANGARS WOULD CAUSE PERMANENT DAMAGE.
CRISSY FIELD CENTER BUILDINGS INUNDATED.
ELEVATION 13 (NAVD 88)
6 FT SLR ABOVE CURRENT KING TIDE KING TIDE = A colloquial term for an especially high tide above a certain elevation. It refers to a combined effect of lunar and solar alignment on the same side of earth, including other effects such as storms. In the context of Crissy Field, once a tide surpasses Elevation 7, it is considered a King Tide. KING TIDE FREQUENCY = 6-8 times per year KING TIDE DURATION = 1.5 hours per event
HISTORIC AIRFIELD WOULD BE TEMPORARILY SUBMERGED. ACCESS TO AIRFIELD TEMPORARILY LOST.
6 FT SLR ABOVE CURRENT 100 YR TIDE
ELEVATION 15 (NAVD 88)
100YR TIDE EVENT = A flood height that statistically has a 1-percent chance of occurring in any given year. 100YR TIDE EVENT FREQUENCY = statistically, once every 100 years 100YR TIDE EVENT DURATION = 2 hours per event
6 FT SLR
CRISSY FIELD SEA LEVEL RISE CALIFORNIA STATE COASTAL CONSERVANCY CLIMATE READY GRANT COMMUNITY STAKEHOLDER MEETING JANUARY 30, 2016