PUBLIC MEETING #3 APRIL 3, 2019
WELCOME
UNDERSTANDING OUR FLOOD CONDITIONS
STUDY PURPOSE Identify practical solutions to alleviate flooding, improve water quality and create multiple benefits for the community
NEW APPROACH
COMMUNITY LED PROCESS Stakeholder Vision Implementation Team Three Community Meetings held nine meetings over the past year
STUDY GOALS PRIMARY GOALS 1. Alleviate Local Stormwater Flooding 2. Reduce the Risk of River Flooding and avoid Floodplain Designation 3. Improve Water Quality SUPPORTING COMMUNITY GOALS 1. Create Innovative Solutions that provide Community Benefit and Reconnect the Community 2. Encourage Natural and Sustainable Solutions 3. Provide Individual Support against Flooding ; Communicate Flood Risk, Strengthen Community Partnerships and Improve Safety during rain events 4. Coordinate with and Leverage Concurrent Projects in the area 5. Be Consistent with the Globeville Neighborhood Plan
SCHEDULE WE ARE HERE TODAY!
GLOBEVILLE BASIN STUDY AREA CONTEXT | TOPOGRAPHY | TYPES OF CHALLENGES
STUDY AREA CONTEXT
STUDY AREA
TYPES OF FLOODING CHALLENGES IN THE BASIN Local Flooding Denver 06/2015 Regional River Flooding Boulder 09/2013 Stormwater River (Localized) (Regional) Flooding Flooding
DENVER’S NATURAL TOPOGRAPHY Elevation Low High 5118 5480
RIVER IN THE DENVER METRO AREA Globeville-Utah Junction Topographic Drainage Basin
1874 - DENVER’S TOPOGRAPHY & DEVELOPMENT BELLVIEW & CEMETERY DEVELOPMENT STARTS TO FILL FIRST DEVELOPMENT ON NORTH-SOUTH SUBDIVISIONS EASTERN HILLS TOPOGRAPHIC CHANGE & DENVER PACIFIC RAILROAD
HISTORIC RELATIONSHIP WITH THE RIVER 1920s – Flood Control 1965 – Floods 2008 – Levee
SOUTH PLATTE RIVER CHARACTER 2017 South Platte River through Denver 2017 South Platte River south of Evans
SPILL LOCATION
RIVER RELATED PROJECTS PLAN | LEVEE • Avoid FEMA floodplain designation • Raise and extend the Levee to address flooding, coupled with ongoing Public Works efforts to address bridges along the river.
STORMWATER Local Flooding Denver 06/2015 Stormwater (Localized) Flooding
NATURAL ENVIRONMENT - TOPOGRAPHY
NATURAL ENVIRONMENT - HISTORIC Old River • Bed (1862) Old River • location vs South Platte River Today
BUILT ENVIRONMENT – RAILROADS (SILVER BOOM) Railroads to • Denver (1870) Smelter • begin to locate in area (1878) Silver Boom • (1879) PARCELS Before 1889
BUILT ENVIRONMENT – HIGHWAYS I-25 (1958) • I-70 (1964) • Rennick • Yards (1977) PARCELS Before 1889 1890 - 1899 1900 - 1933 1934 - 1947 1948 - 1995
BUILT ENVIRONMENT/TOPOGRAPHY 1. Elevation and Topography 2. Built Environment
LOCALIZED FLOODING 1. Elevation and Topography 2. Built Environment 3. Resulting Water Flow RESULTS Potential • Inundation Areas in Globeville Neighborhood
DEVELOPING SOLUTIONS: CHOOSING A NEW DIRECTION All Pipe Approach (Gray) - “Controlling/Managing” Nature (Water) - Historical Pattern - No above –grade benefits Hybrid Approach (Gray + Green) - “Restoring / Reconnecting / Reconnecting” with Nature (Water) - Undoing of historical patterns - Multiple Benefits
RECOMMENDATIONS BY SECTION OF THE BASIN
RANGE OF RECOMMENDATIONS
STRENGTHENING PARTNERSHIPS • PLATTE FARM OPEN SPACE • Rain Barrel Demonstration • Denver Green Teams Program • Youth groups with stormwater & water quality focus • Individual Strategies support HERON POND, HELLER & CARPIO-SANGUINETTE PARK
THANK YOU
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