Edgewood Circle Sinkhole

Group Members: Kaitlyn Benson, Tyler Gardner, Ryan Tillman, and Matt Tsui

Introduction

•Orchard Park at Edgewood Circle•Current Issues

• Water inputs all leading to sinkhole• Ponding for extended time

Design

Basin #170ft X 36ft

Basin #250 ft X 50 ft

Sinkhole

Upstream

Downstream

Calculations & Results

2 year-24 hour Storm Event•Saxton + Southgate Watersheds (Piped Flow): 12.95 cfs•Orchard Park Watershed: 23.43cfs•Possible 3.4 million gallons total•Reduction of ≈1 million gallons

• 25% decrease

•Upstream basins empties in 16 hours• Downstream basin- 7.25 hours

Cost & Education

Net Total Cost= $5,640.39

•Basin Excavation Cost•Riprap•Vegetation•Education Sign

Local School List:•State College Area High School•Our Lady of Victory•Our Children Center•Nittany Valley Charter School•Centre Learning Community School•State College Friends School

Thank You!