Four Mile Run Restoration Project Update Aurora Highlands Civic - - PowerPoint PPT Presentation

Four Mile Run Restoration Project Update

Aurora Highlands Civic Association July 13, 2016

Significant Milestones: § 2000: City, Arlington & NRVC began to explore the stream’s water quality and recreation potentials; USACE partnered with team to conduct a feasibility study on a restoration plan. § 2001: US Congressman Moran sought allocation through EPA of $1M for development of the Four Mile Run Master Plan. § 2006: The City and County adopt the Master Plan. § 2008: STAG grants appropriated for demonstration project & design begins. § 2009: The City and County adopt the Design Guidelines.

10th Anniversary of the adoption

• f the Four Mile Run Master Plan

§ 2009: The City and County hold a competition for design of a pedestrian/cyclist bridge. § 2011: Conservatory Building opens and adjacent area renovated; Four Mile Run Park Farmer’s and Artisans Market opens. § 2012: Buro Happold begins bridge design. § 2012: Design scope for the demonstration project changes based on new USACE requirements. § 2015: Construction begins to restore Alexandria’s wetlands. § 2016: Alexandria wetlands project complete & Arlington shoreline restoration begins.

Four Mile Run Restoration Project Overview

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• Naturalize the banks along the corridor and improve access to the stream

through overlooks and terracing

• Replace rip-rap with vegetation and create Living Shorelines on Arlington

side

• Establish historical tidal wetland condition in Four Mile Run Park in

Alexandria

* Wetland restoration * Soil grading * Invasive plant removal * Native plantings * New pervious surface trail

Alexandria Wetland Project

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Alexandria wetlands project completed and trail installed in Spring, 2016

Arlington Living Shorelines Project

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* Remove rip rap stone * Create living shorelines * Remove invasive plants * Replant with natives * Add viewing platform * Re-build bike trail

Site 2 Design Section

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* Living shoreline: Arrow Arum, pickerelweed, broadleaf arrowhead, river bulrush, common three-square

Pickerelweed Arrow Arum Three-square

* Upland meadow: Eastern smooth beardtongue, common milkweed, bee balm, grass leaved goldenrod, black eyed susan

Site 2 Plantings

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Bee balm Beardtongue Black eyed susan

* Initial bid June, 2015 (only one bid received) * Project plans had to be revised for improved site access and were re-bid in May, 2016 * Responsible bid was received, and construction contract approved June 18 * Construction start estimated August/September, 2016 * Bike trail on Arlington side will be closed for construction (approximately 1 year) * Detour on Alexandria trail

Schedule Site 2

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Watermarks

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§The symbolism of water and the application of the color blue is essential to the Watermark design. §All Watermarks will be cast-in-place concrete integrated with a blue pigment. §23 Watermarks are proposed, 17 in Arlington and 6 in Alexandria §1 Watermark will be installed with the construction of Plan B.

WPCP Fence Enhancement

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Add image of award

Pedestrian Bridge

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Doug Stephens 703-228-3959 dstephens@arlingtonva.us

Questions?