Platte to Park Hill: Stormwater Systems March 2016 Topics Project - - PowerPoint PPT Presentation

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Platte to Park Hill: Stormwater Systems March 2016 Topics Project - - PowerPoint PPT Presentation

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Platte to Park Hill: Stormwater Systems March 2016 Topics Project Need Open Channel Detention Options (Cole, City Park Golf Course) Park Hill Detention Globeville Landing Outfall Funding, Timing & Next Steps

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Platte to Park Hill: Stormwater Systems

March 2016

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  • Project Need
  • Open Channel
  • Detention Options (Cole, City Park Golf Course)
  • Park Hill Detention
  • Globeville Landing Outfall
  • Funding, Timing & Next Steps

Topics

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PROJECT NEED

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36th & High, 2011

Project Need

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Natural Drainage Patterns

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Existing Pipes

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Priority Areas

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Priority Areas

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Open Drainage Channel

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Example: Harvard Gulch

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Basin Low Areas

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Detention Option 1: Cole

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Example: Crestmoor Park

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Detention Option 2: City Park Golf Course

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Example: Lakewood Golf Course

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Hole 1 2 3 4 5 6 7 8 9 Total 10 11 12 13 14 15 16 17 18 Total Par 4 4 5 3 4 4 3 4 4 35 5 5 3 4 4 4 3 5 4 37

PAR 72

City Park Golf Course: Feasibility Study Option 1

DRAFT

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City Park Golf Course: Feasibility Study Option 1

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5-year storm (DRAFT)

City Park Golf Course: Feasibility Study Option 1

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City Park Golf Course: Feasibility Study Option 1

10-year storm (DRAFT)

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City Park Golf Course: Feasibility Study Option 1

100-year storm (DRAFT)

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Hole 1 2 3 4 5 6 7 8 9 Total 10 11 12 13 14 15 16 17 18 Total Par 4 4 3 4 4 3 5 3 5 35 4 3 4 4 4 5 4 3 4 35

PAR 70

City Park Golf Course: Feasibility Study Option 2

DRAFT

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City Park Golf Course: Feasibility Study Option 2

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City Park Golf Course: Feasibility Study Option 2

5-year storm (DRAFT)

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City Park Golf Course: Feasibility Study Option 2

10-year storm (DRAFT)

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City Park Golf Course: Feasibility Study Option 2

100-year storm (DRAFT)

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Hole 1 2 3 4 5 6 7 8 9 Total 10 11 12 13 14 15 16 17 18 Total Par 4 4 4 4 3 5 3 4 4 35 4 4 3 4 5 4 4 3 4 35

PAR 70

City Park Golf Course: Feasibility Study Option 3

DRAFT

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City Park Golf Course: Feasibility Study Option 3

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City Park Golf Course: Feasibility Study Option 3

5-year storm (DRAFT)

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City Park Golf Course: Feasibility Study Option 3

10-year storm (DRAFT)

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City Park Golf Course: Feasibility Study Option 3

100-year storm (DRAFT)

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153 trees impacted out of 872 Of the trees impacted, 47% of them are under 12” diameter and 5% of them are 36”+ diameter

Tree Impacts: Option 1

DRAFT

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Tree Impacts: Option 2

280 trees impacted out of 872 Of the trees impacted, 49% of them are under 12” diameter and 4% of them are 36”+ diameter DRAFT

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Tree Impacts: Option 3

246 trees impacted out of 872 Of the trees impacted, 49% of them are under 12” diameter and 5% of them are 36”+ diameter DRAFT

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Cole Detention City Park Golf Course Detention

Two Detention Location Options

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Areas of Reduced Flooding

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PARK HILL BASIN

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Park Hill Detention

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Park Hill Detention

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Alternative Pipe Alignments

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GLOBEVILLE LANDING OUTFALL

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Globeville Landing Outfall

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Globeville Landing Outfall

  • New outfall

(with existing)

  • Natural open

channel

  • Incorporating

water quality

  • Opportunity to

re-envision park and uses Existing Outfall New Outfall

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FUNDING, TIMING & NEXT STEPS

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Funding for Citywide Stormwater Projects

  • Denver pays for stormwater and drainage projects

through wastewater fees and through partnerships when feasible

  • Four types of stormwater projects:

– Citywide storm improvements – Major basin projects – Urban waterways (gulches) – Water quality

  • Over the last 20 years, Denver has only had 2

stormwater rate increases

  • City Council is scheduled to hear full proposal for rate

increase in spring 2016

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Funding for Platte to Park Hill

  • Platte to Park Hill: Stormwater Systems will be
  • ne of many projects paid for through

wastewater fees

  • Other funding partners may include:

– Urban Drainage and Flood Control District – CDOT – RTD

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Overall Timeline

Fall/ Winter 2015 Spring 2016 Summer/Fall 2016 Late 2016 2017 2018 2019

Montclair/Park Hill Basin Conceptual Planning Montclair/Park Hill Preliminary Design

Montclair/Park Hill Basin

  • perational

Globeville Landing Outfall Construction Montclair/Park Hill Basin Construction

Globeville Landing Outfall

  • perational

Globeville Landing Outfall Conceptual Planning and Preliminary Design

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Preliminary Construction Timeline

  • Globeville Landing Outfall construction

– Begin 2016, complete by 2017

  • Open Channel

– Begin 2017, complete by 2018

  • Cole or City Park Golf Course Detention

construction

– Begin 2017, complete by 2018

  • Park Hill Detention & Pipe construction

– Begin 2018, complete 2019

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Next Steps

  • Extending the public comment window
  • Ramping up community outreach between now and

the selection of the preferred option

  • Project updates, website, small community

meetings

  • Further refinement of the draft options based on

additional input

  • Announcement of preferred option in early April
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ADDITIONAL INFORMATION

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2014 Storm Drainage Master Plan

  • Citywide planning tool that identifies basic

stormwater needs

  • Master Plan identifies and prioritizes projects, which

consist of pipes that meet 5-year storm criteria

  • Platte to Park Hill was not included in the master

plan because it solves the 100-year event

  • Modeling for Platte to Park Hill area indicated a

need to consider higher level of criteria (100-year) due to high flood risk

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Thank You

Visit the project website at: http://denvergov.org/PlattetoParkHill