HALL MIDDLE SCHOOL FIELD REPLACEMENT FOR LARKSPUR- CORTE MADERA - - PowerPoint PPT Presentation

HALL MIDDLE SCHOOL FIELD REPLACEMENT

FOR LARKSPUR- CORTE MADERA SCHOOL DISTRICT

NOVEMBER 23, 2015

LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 2

01 INTRODUCTION

• “There are more than 12,000 synthetic

turf fields in the USA. ”

• “It has been estimated nationally, two

million children play on synthetic turf fields each day. ”

INTRODUCTION

LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 3

01 INTRODUCTION

• Dominican University of California
• Hall Middle School
• Marin Academy High School
• Marin Catholic High School
• Miller Creek Middle School
• Novato High School
• Red Hill Field
• Redwood High School
• San Marin High School
• Sir Francis Drake High School
• Tamalpais High School
• Terra Linda High School

SYNTHETIC TURF ATHLETIC FIELDS IN MARIN COUNTY

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LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 4

02 HISTORY & TYPES OF SYNTHETIC TURF

• Monofilament fiber
• New infill options

ONGOING DEVELOPMENT

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LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 5

• 12,000 fjelds installed in the U.S.
• Durable/low maintenance system
• Environmentaly friendly
• Independent studies confjrm safety of crumb rubber
• Recycling tires help reduce waste material
• Infjll can be recycled for future use
• Negative PR driven by media and environmentalists

Color: Black/infjll tracking Cost: Base Case 46 oz system, 2.25" 3.5 lbs of rubber 1.7 lbs of rounded sanded

• Same benefjts of crumb rubber
• Green coating encapsulates rubber
• Provides enhanced aesthetics
• Helps to reduce fjeld temperature (23-25 degrees)
• Increased cost
• Cost can be mitigated with cool cap system

Potentially same PR issues as crumb rubber

• (Encapsulation of rubber helps mitigate PR issue)

Color: Green Cost: Add $.35 per sqft for Infjll CoolCap: 2lbs of Crumb rubber and 1.5 lbs of CoolFill Cost: Add $.15 per sqft

• Virgin materials
• Removes the “recycled” stigma
• Material is more uniform in size versus crumb
• Limited “in fjeld” experience
• Unproven long term performance
• Bulk density requires more infjll
• Signifjcantly higher per sqft cost

Color: Green Cost: Add $4.00-$4.25 per sqf 46 oz system, 2.25” 4.5 lbs of TPE/EPDM, 1.7lbs of sand Cost: Add $3.00 - $3.25 per sqft for Infjll 52 oz system, 1.75” with thatch 1 lb of TPE/EPDM, 4.5lbs of sand

• Eliminates the crumb rubber PR issue
• FIFA certifjcation for Soccer fjelds
• Limited “in ground” history
• Limited history with American Football fjelds
• Required fjeld watering to avoid hardening
• Requires additional infjll over life of the fjeld
• Increased per sqft cost

Color: Cost: Add $1.50-$1.75 per sqf 46 oz system, 2.25” 3.5 lbs sand, 2lbs organic Cost: Add $3.00 - $3.25 per sqft for Infjll 52 oz system, 1.75” with thatch 1.25 lbs of organic, 4 lbs of sand

TPE/EPDM Virgin Infjlls Organic Infjll CRUMB RUBBER W/ SAND NIKE GRIND COOLPLAY V2 US GREENTECH ENVIROFILL ECOMAX TPE GREEN COATED SBR COOLFILL ZEOFILL ORGANIC (CORK BASED) ORGANIC (FIBER)

02 HISTORY & TYPES OF SYNTHETIC TURF

ALTERNATIVE INFILL COMPARISON

OTHER OPTIONS

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LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 6

02 HISTORY & TYPES OF SYNTHETIC TURF

• Importance of Engineered Stone

Base

• A geotechnical investigation and

recommendations are critical for a successful synthetic turf field

• Safety pads are now available to

maintain safety over a longer period

• f time

ENGINEERED STONE BASE

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LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 7

02 HISTORY & TYPES OF SYNTHETIC TURF

• A field’s level of shock absorbency is

tested by using a unit of measurement called the g-max, where one “g” represents a single unit of gravity.

• A force over 200 g-max is considered

life-threatening.

• A field with a higher g-max level loses

its ability to absorb the force.

• Using ASTM F1936 test method, g-max

readings shall not exceed 200 at each test point.

G-MAX TESTING

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LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 8

02 HISTORY & TYPES OF SYNTHETIC TURF

• The g-max guidelines in the Synthetic

Turf Council’s Guidelines for synthetic turf performance is “below 165” for the life of the synthetic turf field.

• A well maintained natural grass field’s g-max is between 85 and 115, typically.
• The new synthetic turf field at Miller Creek Middle School in San Rafael is between 71 and

80 g-max.

• Fields tend to get harder with age.

G-MAX TESTING

LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 9

03 BENEFITS & CONSTRAINTS

• Benefits: excellent playability, increased hours,

all-weather, excellent drainage, low maintenance, cost-effective & fewer injuries. Synthetic turf is generally safe, and eliminates the need for water, pesticides, herbicides and fertilizers.

• Improves health & wellness.
• A synthetic turf field can accommodate up to 3,000

hours of use/year (without lights). A field could benefit the community, providing 30,000 hours of exercise and societal benefits for all users.

BENEFITS OF SYNTHETIC TURF

LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 10

03 BENEFITS & CONSTRAINTS

• The City of San Francisco has demonstrated that synthetic turf athletic fields

accommodate two or three times more use than natural grass fields and that thousands

• f children and adults from community sports leagues can have a place to play soccer/

lacrosse year-round. One synthetic turf field can accommodate up to 3,000 hours of use per year, equal to about 1,500 two-hour games. If these games included 20 players per game, the synthetic turf field could benefit the community by providing an opportunity for 30,000 hours of exercise and societal benefits that can result when youth and adults participate in sports.

• Two new NUSD fields were installed in 2005 at Novato & San Marin High Schools.

Fields are currently in good condition and replacement is not yet scheduled. Carducci’s recommendations will be part of the replacement plan to replace with synthetic turf.

BENEFITS OF SYNTHETIC TURF

LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 11

04 COST ANAL YSIS

COST COMPARISON-MAINTENANCE

TASK COST Annual Inspection and testing with the ASTM F1936 device to record the surface hardness (Gmax) of the fjeld and verify that the fjeld is safe and meets the warranty requirements. $1,000 Annual contract for grooming and topdressing with “Zamboni-like” machine once per year to maintain a safe and clean fjeld. $5,000 As needed, sweeping, blowing of debris and trash removal dependent on adjacent conditions, wind and behavior of users. $1,500 As needed, infjll topdressing of wear spots. $1,000 As needed, potable water application to clean fjeld for safe use. $1,000 TOTAL $9,500 ANNUAL MAINTENANCE COST FOR 80,000 SF SYNTHETIC TURF FIELD

LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 12

05 SUMMARY AND RECOMMENDATIONS

SAFETY

• Synthetic turf fields are safe. Injuries vary between natural & synthetic turf; however,

the majority of research supports synthetic turf as a viable alternative to natural turf. Improvements to synthetic turf have resulted in increased safety and playability. USE

• Installation of synthetic turf has significantly increased in the last decade.

COST

• Synthetic turf fields reduce maintenance costs.

Year-round play provides opportunity for revenues that offset installation and replacement costs. The per-hour cost of a natural turf field is much greater than the per-hour cost of a synthetic turf field.

SUMMARY

LARKSPUR-CORTE MADERA SCHOOL DISTRICT

HALL MIDDLE SCHOOL FIELD REPLACEMENT

NOVEMBER 23, 2015 13 13

Q & A

QUESTIONS?