The Klingle Valley Trail a Roads-to-trails Story Paul Hoffman - - PowerPoint PPT Presentation

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The Klingle Valley Trail a Roads-to-trails Story Paul Hoffman - - PowerPoint PPT Presentation

Jun 11, 2023 240 likes •889 views

The Klingle Valley Trail a Roads-to-trails Story Paul Hoffman August 17, 2017 District Department of Transportation Infrastructure Project Management Division Agenda About DDOT Klingle Roads demise Public controversy builds

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The Klingle Valley Trail a “Roads-to-trails” Story

Paul Hoffman August 17, 2017

District Department of Transportation Infrastructure Project Management Division

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Agenda

About DDOT Klingle Road’s demise

  • Public controversy builds
  • DPW/DDOT way forward

Environmental documentation and design

  • Draft EIS and EA
  • Designs

Construction

  • Rebuild utilities
  • Stream Restoration
  • Green Infrastructure
  • Permeable Pavement
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DDOT is Born

May 2002 – DC Council passes the District Department of Transportation Establishment Act of 2002, creating a cabinet-level agency responsible for the management of transportation infrastructure and operations. Prior to the Act, transportation was managed under the Department of Public Works.

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Project Location

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Project Location

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The public weighs in…

Source: Washington Post

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Right-of-way

National Zoo NPS Tregaron Conservancy Gov’t

  • f India

WMATA

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Timeline…

Original Klingle Road 1831 Current Klingle Road Alignment 1930s Klingle Road Closed to Public 1991 Klingle Road Feasibility Study 2001 Klingle Road Restoration Act 2003 Draft Environmental Impact Statement 2005 Klingle Road Sustainable Development Amendment Act 2008 Final Environmental Assessment 2011 Final Design Complete October 2014 Construction Start July 2015 Construction Complete June 2017

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Keys to Design

  • Stream Restoration

– Restore 4 heavily damaged segments of Klingle Creek

  • Utilities

– Washington Gas: Full replacement of existing transmission line – DC Water: Rehab/replacement of sanitary sewer along trail

  • 2000+ LF of Cured-In-Place Pipe
  • Trail

– Permeable pavement (DDOT Green Infrastructure compliant) – Connections to Porter Street and Rock Creek Trail – Install lighting along trail

  • Retaining Walls

– Construct new retaining wall using salvaged stone – Repoint existing retaining walls

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Keys to Design (cont.)

  • Stormwater

– Install new drainage structures along trail – Install bioretention facility and bioswale – Install flood control structure

  • Urban Forestry/Landscaping

– Remove/replace hazardous trees – Re-establish Klingle Creek floodplain

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Gas Line Replacement

Phase 1 Phase 2 Phase 4 Phase 3

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Sanitary Sewer Rehab

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Stream Restoration

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STREAM RESTORATION

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November 2014

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February 2016

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February 2016

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April 2016

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May 2017

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July 2015

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September 2016

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March 2016

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November 2014

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January 2016

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April 2016

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May 2017

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November 2014

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April 2016

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May 2017

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RETAINING WALLS

Existing Conditions

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Retaining Walls

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East Wall

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Construction Progress – Retaining Walls

Existing Wall September 2016

February 2017

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Construction Progress – Retaining Walls

Existing Wall September 2016

May 2017

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INTERCHANGE CONNECTIONS

National Park Service & DDOT

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Porter Street Interchange

Stage 3 Stage 2 Stage 2A

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TRAIL CONSTRUCTION

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Permeable Pavement

  • 0.7 miles
  • Permeable pavement

– Creates a reservoir to store stormwater on site – Green Infrastructure

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Trail Construction

Excavation to Subgrade Porous Stone Reservoir

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Construction Progress

  • Trail

Excavation Porous Base

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Lighting

  • 52 new LED light poles
  • Phillips Metroscape Fixture
  • Coordinated with NPS
  • Approved by the

International Dark-Sky Association

  • No ‘up-lighting’
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Future Challenges

  • Operations & Maintenance

– Regular vacuuming to maintain pavement – Winter safety – can’t use sand/salt – Bioretention/stormwater facility maintenance

  • Public safety

– Metropolitan Police / National Park Police jurisdictions – Vandalism – Falling trees – Neighborhood opposition to lighting

  • Access

– No access from Connecticut Avenue – Very limited street parking

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Trail Opening

  • June 24, 2017 Ribbon

Cutting Ceremony

– Attended by D.C. Mayor Muriel Bowser – Covered by multiple news outlets

  • Washington Post
  • WTOP
  • WAMU
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DDOT thanks

De sig n T e a m Co nstruc tio n T e a m

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Que stio ns

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