Marston Lake North Drainageway Public Outreach Marston North - PowerPoint PPT Presentation

Marston Lake North Drainageway Public Outreach

Marston North Drainageway at Marston Lake Basin Jefferson County Project Area City and County of Denver 2

Present Day Condition W Quincy Ave S Garrison St Jefferson County Quincy Lake Marston North Drainageway East W Stanford Ave Lake’s Lake City and County Of Denver 3 Overspill risk areas

Reduce overspill risk; Remove crossing at W. Swarthmore Dr.; Reduce overspill risk; Reduce overspill risk; New trail crossing After Improvements Improve recreation; Improve recreation; Make Marston North New trail crossing and Improve landscape Drainageway larger, natural inlet at Lake’s Lake at Quincy Lake more efficient W Quincy Ave S Garrison St Jefferson County Quincy Lake Marston North Drainageway East W Stanford Ave Lake’s Lake Glenbrook City and County Outfall Of Denver (S Garrison St) Glenbrook Detention Basin Areas of Improvement 4

Schedule of Improvements Quincy Lake East Jefferson County City and County Of Denver W Stanford Ave Lake’s Lake S Garrison St Areas of Improvement Construction to begin: Early 2019 • Construction duration: 6 to 7 months • Work will begin Downstream and work Upstream • City of Denver and UDFCD will reach out to homeowners adjacent to the work to discuss the improvements • 5

Quincy Lake Improvements – Befor e & After W Radcliffe Pl S Garrison St EXISTING Quincy Lake East Jeff Co Lake’s CCD Lake PROPOSED Landforms promote greater variety in • landscape KEYMAP Additional recreational features • 6

Quincy Lake Improvements ‐ Proposed New Loop Path • Additional stormwater capacity reduces overspill risk for 100 ‐ year • design storm Landforms promote greater variety • “Maintenance Eligible” design per UDFCD standards • in landscape 7

W Swarthmore Drive Improvements EXISTING 42” x 66” Elip. RCP CCD JEFF CO PROPOSED Quincy Reduce overspill risk • Lake Make Marston North Drainageway larger, East • Jeff Co Lake’s CCD Lake more efficient Maintain accessibility for pedestrians crossing • the channel at the low ‐ water crossing KEYMAP 8

Stanford to Balsam Park Improvements EXISTING Landforms promote greater variety in • landscape New, low profile bridge crossing • PROPOSED DESIGN APPROACH Quincy Lake East Jeff Co CCD Lake’s Lake 9 KEYMAP

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