Waterways Management Monthly Report Council Briefing May 22

Waterways Management Monthly Report Council Briefing May 22, 2013

Agenda Salt Ponds Dredging Update Watershed Study Explanation Back River - Riverdale Study Coliseum Lake Retrofit Grant/Partnership Update Questions Council Briefing Slide 2

Salt Ponds Dredging Update Salt Ponds Inlet Dredging NTP March 22, 2013 At current dredging rate will be completed wellahead of Memorial Day Contractor is assisting boaters, as needed Beach posted closed for grading subcontractor Council Briefing Slide 3

Salt Ponds Dredging Update Council Briefing Slide 4

Watershed Study Explanation • City is broken up into 20 subwatershed areas within four main watersheds: - BR – Back River - CB – Chesapeake Bay - HR – Hampton Roads - JR – James River • So far two sub-watershed studies have been completed, looking at both addressing both water quality (pollution) and quantity (flooding) issues. • Currently funding 3 studies per fiscal year. Within 5 years all studies will be complete. Council Briefing Slide 5

Back River – Riverdale Study The Back River – Riverdale Watershed Study was completed March of last year. Key points include: • Using both staff knowledge and 311 complaint data, identified areas of significant flooding from both tidal surge and rainfall runoff. • Completion of extensive field work and hydraulic modeling of existing and proposed conditions. • Identified both quality and quantity projects, giving estimated construction costs, estimated pollutant removal, and broke the projects down into cost per pound of pollutant removed. • Ultimately provided a list of projects eligible to be placed on the capital improvement project list. When future studies are completed the list of potential projects will grow. All potential projects will be compared and rated, allowing the most efficient projects to take priority. Council Briefing Slide 6

Coliseum Lake Retrofit Project The Coliseum Lake Retrofit project is the most cost effective option for improving water quality within the Riverdale watershed study. While not directly providing flood reduction benefits, this project will help the city meet the TMDL regulations as highly cost effective water quality enhancement. Design is approximately 75% complete. Construction is expected to begin in FY 14. Council Briefing Slide 7

Grant/Partnership Updates On-Going Partnerships Other City Departments As part of Hampton 101 CDD and PW will be hosting a workshop June 13, 2013, 6 – 8 p. m. , Hampton Main Library: Are You Prepared for Flooding? City of Hampton participating in a multi-state roundtable on Sea Level Rise, NYC, April 16 & 17 (100% sponsored by the Union for Concerned Scientists) Grants Awards Pending Virginia Trees for Clean Water – Parks & Recreation EPA Brownfields Assessment Grant Chesapeake Bay Advisory Committee – Blue Bird Gap Farm Applications Pending DCR Floodplain Management – Flooding Educational Outreach Alternatives Green Enhancement Virginia Sea Grant –Stormwater Partnering with Old through Dominion University (education/outreach) Chesapeake Bay Stewardship Fund – TMDL project Council Briefing Slide 8

QUESTIONS? Council Briefing Slide 9