NEW ORLEANS LAKEVIEW FLOATING STREETS

Transcription

1 INTERCEPTOR STREETS INTERCEPTOR STREETS: EXISTING UPTOWN TO BUCKTOWN COORDINATING INVESTMENTS LAKEVIEW FLOATING STREETS Katrina Memorial Lake Avenue mixed-use waterfront Networks of bike and pedestrian West End storage basin and park Slow, Store, Drain vacant lots Emergency water reduce subsidence Canal Street Canal Redesign canal to store water in rain event; in dry periods 17th Street Canal Upper lower water level; widen canal; lower walls; bike and pedestrian access Lower capacity 17th Street Canal Lower Cascade to slow stormwater and storage capacity and riverfront development adjacent to new development Emergency inlet to reduce subsidence for river water Bike Trail New inlet for drinking water outlet for Claiborne Emergency stormwater Drain Hollygrove NORA lots and parks Split of water basins Xavier University waterfront development Raise water levels; provide pedestrian

2 LAKEVIEW FLOATING STREETS MONTICELLO CANAL West End 3 outlet street 3 To pump 12 2 normal street 1 normal street Fleur de Lis 2 3 A) Subsurface ow 1 To Pump Sta on # 12 Schema c situa on B) Surface of ow project area MONTICELLO CANAL MONTICELLO ENGINEERED PROPOSAL

3 HOEY S BASIN / MONTICELLO CANAL HOEY S BASIN / MONTICELLO CANAL image: Bosch Slabbers, Waggonner & Ball HOEY S BASIN / MONTICELLO CANAL HOLLYGROVE/MONTICELLO CANAL image: Bosch Slabbers, Waggonner & Ball

4 LAKEVIEW AND BUCKTOWN LONDON AVENUE CANAL LONDON AVENUE CANAL OUTFALL CANALS Eleva on ( NAV VD) Eleva on ( NAV VD) Distance from DPS7 ( ) Orleans Canal Distance from DPS03 ( ) London Avenue Canal

5 OUTFALL CANAL PROPOSED STORMWATER FLOWS System scale water storage Small scale strategies to slow water Split at the ridge waterworks 5 miles S PROPOSED DRY SYSTEM FLOWS DUTCH DIALOGUES III CIRCULATING SYSTEMS Brackish water Fresh water Urban wetland filtration 5 miles

6 DUTCH DIALOGUES CIRCULATING SYSTEM LAFITTE BLUEWAY - DRAINAGE IMPACT image: Pieter Schengenga & Lodewijk van Nieuwenhuijze LAFITTE GREENWAY SUSTAINABLE WATER DESIGN HISTORIC CONNECTIONS LAFITTE CORRIDOR

7 BRIDGEPORT RAIN GARDEN LAFITTE BLUEWAY image: Bosch Slabbers LAFITTE GREATER GREENWAY SUSTAINABLE URBAN WATER PLAN DESIGN LAFITTE BLUEWAY - WET LAFITTE GREENWAY SUSTAINABLE WATER DESIGN HISTORIC IDENTITY image: Bosch Slabbers

8 HISTORIC WATERWAYS ROTTERDAM OLD HARBOR LAFITTE BLUEWAY FROM BASIN REGIONAL PLAN NDRC DELTA ADAPTATION Lake Borgne Gulf of Mexico New Orleans East St. Bernard New Orleans Jefferson Parish Lake Pontchartrain West Bank PAST CURRENT FUTURE image: Palmbout Urban Landscapes

9 Living Shoreline NDRC PROJECTS NDRC: OUTFALL CANALS PERM. PUMP STATION/CLOSURE STRUCTURE Orleans Ave Canal City Park Microgrids TEMP. PUMP STATION/CLOSURE STRUCTURE Blue-Green Corridors St. Anthony Green Streets LMI Homeowner Resilience Retrofit Program PROPOSED PUMP STATION 600 CFS Milne Campus Pontilly Neighborhood Green Infrastructure London Ave Canal Art/Intervention Mirabeau Water Garden Dillard Wetland St. Bernard Neighborhood Campus Water Monitoring Network PROPOSED +8 USACE PROPOSED SAFE WATER LEVEL AFTER PENDING BUTTRESSING +5 CURRENT SAFE WATER LEVEL -1 ~+1 TYP. TIDAL FLUCTUATION EXISTING GROUND GABION 2 MIN FREEBOARD SIDEWALK 10'-0" COMPACTED FILL TO ELEVATE LEVEE TO +10 MIN SECTION AREA 77sf EXISTING TOE OF LEVEE NEW TOE OF LEVEE Bayou St. John Neighborhood Green Infrastructure St. Roch Green Streets CONCRETE REVETMENT EXISTING SHEET PILE DEEP AVG. PROPOSED TO REMAIN REMOVE WALL (KEEP THE SHEET PILE) ADD GABIONS AND CONCRETE REVETMENT TO STABILIZE THE BANK ADD EXTRA FILL TO COVER THE SHEET PILE AND ELEVATE LEVEE TO MAINTAIN SAFE FREEBOARD PLACE A NEW SIDEWALK WHERE THE ORIGINAL WALL WAS MAINTAIN EXISTING WATER LEVELS SEA LEVEL EXISTING PUMP STATION 2,900 CFS CITY PARK NDRC CITY PARK RUNOFF INTO CITY PARK FROM LAKE VISTA NEIGHBORHOOD SIPHON UNDER ORLEANS CANAL CONSTRUCTED WETLANDS FILTER AND INFILTRATE POTENTIAL OVERTOPPING FROM ORLEANS CANAL 1 foot of storage: Acre Feet 2 feet of storage: 263 Acre Feet 3 feet of storage: 540 Acre Feet 4 feet of storage: 982 Acre Feet NEW CONNECTIONS BETWEEN LAKES LAKE BED DREDGED TO INCREASE FLOW AND STORAGE CAPACITY NEW GOLF COURSE REDIRECTED FLOW INTO CITY PARK ORLEANS CANAL COUTURIE FOREST LAKEVIEW SIPHON UNDER ORLEANS CANAL LAKE VISTA NEW OPERABLE WEIR SCOUT ISLAND FILTRATION WETLAND -4.5 BELOW SEA LEVEL TYPICAL WATER LEVEL ALTERNATE WEIR LOCATION NEW OPERABLE WEIRS NEW WATER CONNECTION