Public Information Meeting Installation of Athletic Field Lighting, Synthetic Turf and Related

Stormwater Enhancements on Rectangular Field #4 at Great Falls Nike Park

July 18, 2012

Introductions

Dranesville District Supervisor’s Office

John Foust, Supervisor

Dranesville District Park Authority Board Member

Kevin Fay

Department of Public Works and Environmental Services

Craig Carinci, Director Stormwater Planning

Fred Rose, Chief Watershed Planning and Assessment

Emma Gutzler, Ecologist, Stormwater Planning

Fairfax County Public Schools

Steve Nicholson

Fairfax County Park Authority

David Bowden, Director Planning & Development Division

John Lehman, Manager, Project Management Branch

Deb Garris, Manager, Synthetic Turf Branch

Meeting Agenda

Presentation: Park Authority

Overview of Project to Include Athletic Field Lighting Technology and

Performance Standards and Synthetic Turf Field Development

Presentation: Department of Public Works and

Environmental Services (DPWES)

Overview of Proposed Stormwater Enhancement Measures

Informal Discussions

Funding Partnerships

Great Falls Nike #4 is a partnership between Great Falls Lacrosse and Department of Neighborhood and Community Services and Park Authority.

Great Falls Nike Park

(1991 Master Plan)

Orientation Map – Field #4

Great Falls Nike Park

Increased Playability Estimated to increase playing capacity by 62% in

conjunction with the addition of lights, when compared to natural turf. Increases capacity on lighted existing field sites lessening the need for constructing additional fields.

Increased Durability Reduces field closure due to overuse, allowing fields to

remain open for the length of the season. Eliminates divots, bald spots, and uneven terrain of rigorously used natural turf fields.

Why Synthetic Turf?

Why Synthetic Turf?

Lower Maintenance Costs Requires no mowing, fertilizing, pesticides or re-seeding.

Regular maintenance includes grooming and debris removal.

(continued)

Quality Synthetic turf systems provide water quality improvement by

reducing phosphorus runoff to nearby streams and tributaries.

The synthetic turf system acts as a filter, capturing small amounts of physical and chemical contaminants.

Natural grass athletic fields often do not have healthy stands of grass due to over-use. The lack of healthy stands of grass increases the amount of sediment present in stormwater runoff.

Synthetic turf fields do not require the use of fertilizer and other chemicals that ultimately enter the natural stormwater system.

Stormwater Management Benefits of Synthetic Turf

Standard Synthetic Field

Development Profile

Synthetic turf

Inlaid field line

Finish stone

Open graded aggregate base

Geo-textile fabric

Underdrain piping system

Subgrade

Natural grass

Concrete curb

BASE AND DRAINAGE SYSTEM DETAIL

Design meets the PFM requirements for stormwater management and BMP

Reduces the post development 2 YR and 10 YR peak runoff rates to less than predevelopment conditions

Reduces phosphorous by 15% which exceeds the PFM redevelopment requirements

Enhanced Stormwater Retention - Stone Galleries

Provides water quality and volume reduction beyond the PFM requirements

Total Phosphorus Removal 1.2 lbs/year

Goal is to retain / infiltrate the 100 YR storm volume

Piney Branch at Great Falls Nike Park

Drainage area of approximately 36 acres

Current project focuses on 3.5 acres

Working with Park Authority and Forestville Elementary on other opportunities

Stormwater Enhancements

Goal: Maximize retention and infiltration of

stormwater at field #4

Reforestation

Organic Soil

Amendment

Stone Gallery

Underdrains Grassy Swale

Stone Galleries

High measured infiltration rates

Captures water from 2.68 acres

Four linear stone galleries underlying the turf field

One along the southern endline

Temporary storage allowing infiltration

Grassy Swale

Parallel along the western sideline

High measured infiltration rates

Treats stormwater from 0.40 acre

Reduces runoff, total phosphorus and total nitrogen

Organic Soil Amendments

Around the field

Deeply tilled in organic compost

Restores soil porosity and increases infiltration

Insert close up photo of

compost (in hands??)

Insert photo of soil

amendments being

incorporated

Reforestation

Native trees and shrubs on 0.44 acre

Encourages infiltration

Intercepts and filters runoff

Provides habitat

Enhanced Stormwater Accomplishments

Additional retention of stormwater runoff from field #4

Reduced runoff = reduced pollutants

Stone Base Installation

Synthetic Turf Installation

Installing Infill Materials

Proposed Synthetic Turf Infill Options

“FutrFill – TPE (Thermo Plastic Elastomer) derived from an environmentally inert material process and Silica Sand Mixture

“PureFill” – Cork which is a totally organic product, 100% recyclable with no waste by‐products harvested from cork oak

trees every nine years and Silica Sand Mixture

Completed Field With Inlays

Replacement of Synthetic Turf

A well engineered sub-surface drainage system should be sustainable for two or three synthetic turf replacements

Life Span

Synthetic

Turf

Natural

Turf

Latest Lighting Control - Rectangle

• Example Rectangle

Obtrusive Light

• Useful Light

• 3 Interrelated Elements

• Spill Light

• Glare

• Sky Glow

Field Lighting History

• Before 1990

• Light Trespass Not Considered

• No Spillover Control

• Wooden Poles

• After 1990

• PA Addresses Light Trespass

• Concrete Polls

• Lighting Control

• Early

• Latest

• Shields

Control of Obtrusive Light

• Shielded Fixtures

• Appropriate Pole Heights

• Downward Aiming Fixtures

• Optimum Aiming

• Fewer Fixtures

Control of Obtrusive Light

• Shielded Fixtures

• Efficient Reflectors

• Reduces Energy Needs

• Maximize Light on Field

• Efficient Lamp Design

• Optimizes Light Output

Light System Control

• Control Link

• Satellite

• Internet-based

• Phone

• Staffed Control Center

• Field Control Units

• System Monitoring

Field Lighting Standards

IESNA Recommended Lighting

(fc) = foot candles

Class Rectangle Diamond Infield Diamond Outfield

III – High School 30 fc 50 fc 30 fc

IV – Low Recreation 20 fc 30 fc 20 fc

Field Lighting Standards

Rectangle A Diamond & Rectangle B

Max Spill 0.3 fc 0.8 fc

Max Glare 7,000 c 12,000 c

• Max Spill – 150 feet

• Max Glare – 200 feet

• Property Line

Saved for New Slide from Deb

Example of Sports Illumination Plan

Latest Lighting Control - Rectangle

For more information contact:

Stormwater Planning

Emma Gutzler or Irene Haske

703-324-5500, TTY 711

Park Authority

Charles Mends-Cole

703-324-8640, TTY 711

www.fairfaxcounty.gov