6/12/2015 HAPPY TRAIL CULVERT REPLACEMENT: A Successful - PDF document

6/12/2015 HAPPY TRAIL CULVERT REPLACEMENT: A Successful Collaboration Between Local and Federal Governments Presented By: KECK & WOOD, INC. Keith Costley, PE John Gast,PE Existing Conditions  Road Flooding  Multiple Small Culverts  Debris Buildup  Perched Inlets  Significant Storm Events Existing Conditions Carolina Heelsplitter 1

6/12/2015 Carolina Heelsplitter  Federally Listed Endangered Species  Known to or believe to occur in 15 SC counties  Identified by Aquatic Survey  Critical Habitat by USFWS US FISH & WILDLIFE NATIONAL FISH PASSAGE PROGRAM The National Fish Passage Program is a voluntary, non-regulatory initiative that provides funding and technical assistance in all 50 States to reconnect aquatic habitat by eliminating or bypassing barriers. US FISH & WILDLIFE NATIONAL FISH PASSAGE PROGRAM Examples of Barriers:  Water Diversions  Dams  Traditional Round Culverts 2

6/12/2015 US FISH & WILDLIFE NATIONAL FISH PASSAGE PROGRAM Fish Passage Program – Region 4 Before  Program Initiated in 1999 to Address Structures Built on Rivers and Streams that Impaired Aquatic Life Movement  To Date Restored/Enhanced over 400 Miles of Stream and 75,000 Acres of Wetlands  Annual Budget of $500K to $1.3M  Individual Projects Range from $5K to $200K After Fish Passage Program History 3

6/12/2015 Goals of the Project  Install a Culvert to Pass the 50-Year Storm Event  Minimize Cost Associated with Proposed Improvements  Minimize Impacts to Environmentally Sensitive Areas  Minimize Impacts to Adjacent Properties  Allow for Passage of Fish and other Aquatic Species (Carolina Heelsplitter) Project Stakeholders  Property Owners  County Staff  County Council  USFWS  ACOE  SCDHEC  Water, Gas & Telecom Utilities Project Challenges  Funding  Proximity to Critical Habitat  Jurisdictional Waters  Property Owner Access  Storm Intensity  Existing Road Profile 4

6/12/2015 Happy Trail Map Existing Conditions Access Issues 5

6/12/2015 Plan & Profile Project Steps  Fish Passage Program Eligibility  Data Collection  Hydrologic Analysis  Hydraulic Analysis  Coordination/Permitting USFWS  Coordination/Permitting ACOE  Coordination USFWS Cost Share/Installation  Installation and Closeout Sharing Costs – Happy Trail  Lancaster County • Engineering • Culvert Materials • Stone, Concrete, Erosion Control Materials  USFWS – Fish Passage Program • Labor • Installation of Materials 6

6/12/2015 Sharing Costs – After Happy Trail  Lancaster County • Engineering  USFWS – Fish Passage Program • Materials • Labor • Installation of Materials Happy Trail Basin SCDOT Regression Equations Hydrologic Analysis 7

6/12/2015 Culvert Shape / Type 24 Feet Wide by 4.75 Feet Tall Hydraulic Analysis 2-Year Storm Hydraulic Analysis 10-Year Storm 8

6/12/2015 Hydraulic Analysis 25-Year Storm Hydraulic Analysis 50-Year Storm Hydraulic Analysis 100-Year Storm 9

6/12/2015 Construction Photos Construction Photos (looking upstream) Construction Photos 10

6/12/2015 Project Takeaways  All Project Goals Were Achieved  Local & Federal Governments Pooled Resources  Better Solution by Working Together  Built Relationships for Future Projects WIN / WIN THANK YOU 215 Hampton Street, Suite 100 Rock Hill, SC 29730 803-620-1300 www.keckwood.com 11