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

• • 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. ” 01 INTRODUCTION HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 2

• • • • • • • • • • • • SYNTHETIC TURF ATHLETIC FIELDS IN MARIN COUNTY Dominican University of California San Marin High School Hall Middle School Sir Francis Drake High School Marin Academy High School Tamalpais High School Marin Catholic High School Terra Linda High School Miller Creek Middle School Novato High School Red Hill Field Redwood High School 01 INTRODUCTION HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 3

• • ONGOING DEVELOPMENT Monofilament fiber New infill options 02 HISTORY & TYPES OF SYNTHETIC TURF HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 4 4

OTHER OPTIONS ORGANIC (FIBER) ORGANIC (CORK BASED) ZEOFILL GREEN COATED SBR COOLFILL TPE ECOMAX US GREENTECH ENVIROFILL COOLPLAY V2 NIKE GRIND CRUMB RUBBER W/ SAND ALTERNATIVE INFILL COMPARISON TPE/EPDM Virgin Infjlls Organic Infjll • Virgin materials • Eliminates the crumb rubber PR issue • • Same benefjts of crumb rubber • Removes the “recycled” stigma • FIFA certifjcation for Soccer fjelds • 12,000 fjelds installed in the U.S. • Green coating encapsulates rubber • Material is more uniform in size versus crumb • Durable/low maintenance system • Provides enhanced aesthetics • Environmentaly friendly • Independent studies confjrm safety of crumb rubber • Helps to reduce fjeld temperature (23-25 degrees) • Recycling tires help reduce waste material • Infjll can be recycled for future use • Increased cost • Limited “in fjeld” experience • Limited “in ground” history • Negative PR driven by media and environmentalists • Unproven long term performance • Limited history with American Football fjelds • Cost can be mitigated with cool cap system • Bulk density requires more infjll • Required fjeld watering to avoid hardening Potentially same PR issues as crumb rubber • Signifjcantly higher per sqft cost • Requires additional infjll over life of the fjeld • (Encapsulation of rubber helps mitigate PR issue) • Increased per sqft cost Color: Green Color: Color: Green Color: Black/infjll tracking Cost: Add $.35 per sqft for Infjll Cost: Add $4.00-$4.25 per sqf Cost: Add $1.50-$1.75 per sqf Cost: Base Case 46 oz system, 2.25” 46 oz system, 2.25” 4.5 lbs of TPE/EPDM, 1.7lbs of sand 3.5 lbs sand, 2lbs organic CoolCap: 2lbs of Crumb rubber and 1.5 lbs of CoolFill 46 oz system, 2.25" Cost: Add $.15 per sqft 3.5 lbs of rubber 1.7 lbs of rounded sanded Cost: Add $3.00 - $3.25 per sqft for Infjll Cost: Add $3.00 - $3.25 per sqft for Infjll 52 oz system, 1.75” with thatch 52 oz system, 1.75” with thatch 1.25 lbs of organic, 4 lbs of sand 02 HISTORY & TYPES OF SYNTHETIC TURF 1 lb of TPE/EPDM, 4.5lbs of sand HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 5 5

• • • ENGINEERED STONE BASE 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 of time 02 HISTORY & TYPES OF SYNTHETIC TURF HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 6 6

• • • • G-MAX TESTING 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. 02 HISTORY & TYPES OF SYNTHETIC TURF HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 7 7

• • • • G-MAX TESTING 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. 02 HISTORY & TYPES OF SYNTHETIC TURF HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 8 8

• • • BENEFITS OF SYNTHETIC TURF 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. 03 BENEFITS & CONSTRAINTS HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 9

• • BENEFITS OF SYNTHETIC TURF 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 of 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. 03 BENEFITS & CONSTRAINTS HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 10

ANNUAL MAINTENANCE COST FOR 80,000 SF SYNTHETIC TURF FIELD TOTAL COST TASK COST COMPARISON-MAINTENANCE Annual Inspection and testing with the ASTM F1936 device to record the surface hardness (Gmax) of the fjeld and verify that the $1,000 fjeld is safe and meets the warranty requirements. 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 $9,500 04 COST ANAL YSIS HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 11

USE • • COST • SUMMARY 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. Installation of synthetic turf has significantly increased in the last decade. 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. 05 SUMMARY AND RECOMMENDATIONS HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 12

QUESTIONS? Q & A HALL MIDDLE SCHOOL FIELD REPLACEMENT LARKSPUR-CORTE MADERA SCHOOL DISTRICT NOVEMBER 23, 2015 13 13