CENAB-OP-RMS Application 2011-00766 (SOUTHWEST WATERFRONT REDEVELOPMENT/THE WHARF) MEMORANDUM FOR RECORD SUBJECT: Department of the Army Environmental Assessment and Statement of Findings for Above-Numbered Permit Application This document constitutes the Environmental Assessment, 404(b) (1) Guidelines Evaluation, Public Interest Review, and Statement of Findings. a. Application as described in the public notice (PN) dated 13 June 2011: APPLICANT: Government of the District of Columbia Office of the Deputy Mayor for Planning and Economic Development ATTN: Mr. Victor Hoskins 1350 Pennsylvania A venue NW, Suite 317 Washington, DC 20004 Hoffinan Madison Waterfront (Developer) 4 725 Wisconsin A venue NW, Suite 200 Washington, DC 20016 Moffatt & Nichol (Consultant) 2700 Lighthouse Point East, Suite 501 Baltimore, MD 21224 WATERWAY & LOCATION: In the Washington Channel along Water Street and Ohio Drive, SW, Washington, District of Columbia, 20024. LATITUDE & LONGITUDE: The coordinates (Latitude: 38° 52'51. 33" N Longitude: -77° 01' 39.16" Wand Latitude: 38° 52' 27.41" N Longitude: -77° 01 '14.57" W) represent the northernmost and southernmost points respectively of the existing bulkhead at the project site. The applicant originally proposed to: construct five new public piers and two independent marinas; install "day-use" docks; construct sewage pump-out facilities; install lighting, potable water, electric, communications, sewer, fire protection infrastructure and winterization, and de-icing systems below deck for both fixed and floating piers; create a mooring field; construct a replacement bulkhead; and construct a residential building and multi-purpose buildings on the new piers, as described in detail below: Market Pier and Docks: To construct a fixed 35-foot wide by 155-foot long concrete pier ZONING COMMISSION District of Columbia Case No. 11-03J ZONING COMMISSION District of Columbia CASE NO.11-03J DeletedEXHIBIT NO.82E CENAB-OP-RMS (Application 2011-00766 (SOUTHWEST WATERFRONT REDEVELOPMENT/THE WHARF)) SUBJECT: Department of the Army Environmental Assessment and Statement of Findings for the Above-Numbered Permit Application with 24 18-inch square concrete support piles, a 35-foot wide by 40-foot long tensile pavilion structure, a 5-foot wide by 60-foot long gangway, an irregularly-shaped 43-foot wide by 130-foot long floating parallel pier connecting two floating pier extensions including Dock A- to install an 8-foot wide by 375-foot long floating pier with an 8-foot wide by 98-foot long "T" head and 17 4-foot wide by 45-foot long finger piers; and Dock B- to install an 8-foot wide by 445-foot long floating pier with an 8-foot wide by 53-foot long "L" head and install ten 4-foot wide by 45-foot long finger piers; and to install18 12-inch fender piles within a maximum of 555 feet channelward of the existing bulkhead. Transit Pier: To construct a fixed 30-wide by 220-foot long concrete pier with 70 18- inch square concrete support piles; an 11,700 square foot triangular base pier, a two-story security and terminal building with a 2,165 square feet footprint, and a perimeter floating dock system including to install an 8-foot wide by 1,040-foot long floating pier with two 4-foot wide by 40-foot long finger piers, three 5-foot wide by 30-foot long gangways and two 5-foot wide by 60-foot long gangways; to install36 12-inch diameter fender piles within a maximum of335 feet channelward ofthe existing bulkhead. City Pier: To construct a fixed 50-foot wide by 490-foot long concrete pier with a 30-foot wide by 100-long tensile pavilion structure and a two-story harbor master and security center building with a 500 square feet footprint; to install 85 18-inch square concrete support piles and 49 12-inch diameter fender piles within a maximum of 490 feet channelward of the existing bulkhead. Capital Yacht Club (CYC) and Marina: To construct an 8-foot wide by 600-foot long floating head dock with two 5-foot wide by 80-foot long gangways; and four floating dock extensions including Dock A- to install an 8-foot wide by 370-foot long floating pier with an 8-foot wide by 133-foot long "T" head and 12 6-foot 7-inch by 65-foot wide and 13 6-foot wide by 60-foot long finger piers; Dock B- to install an 8-foot 8-inch wide by 420-foot long floating pier with an 8-foot wide by 114-foot long "T" head and 15 5- foot 6-inch wide by 55-foot long and 15 5-foot wide by 50-foot long finger piers; Dock C -to install an 8-foot wide by 425-foot long floating pier with an 8-foot wide by 108-foot long "T" head and 32 5-foot wide by 50-long finger piers; and an additional floating dock extension including to install an 8-foot wide by 151-foot long floating pier; to construct a two-story CYC clubhouse building with a 5,600 square feet footprint on a 50-foot wide by 160-foot long concrete platform; and to install25 18-inch square concrete support piles for the CYC clubhouse platform within a maximum of 450 feet channel ward of the existing bulkhead. fh Street Pier and Overlook: To construct a fixed 25-foot wide by 446-long concrete pier with a 76-foot diameter roundabout at the terminus and a 56-foot diameter two-story tensile pavilion structure with a 1,250 square feet footprint; to install a 10-foot to 20-foot wide by 500-foot long floating dock with two 5-foot wide by 80-foot long gangways; to construct a 15-foot 4-inch by 67-foot 7-inch concrete overlook platform, partially covered by a 25-foot wide wooden trellis supported on the Promenade; and to install 64 18-inch Page2 CENAB-OP-RMS (Application 2011-00766 (SOUTHWEST WATERFRONT REDEVELOPMENT/THE WHARF)) SUBJECT: Department of the Army Environmental Assessment and Statement of Findings for the Above-Numbered Permit Application square concrete support piles for the fixed pier within a maximum of 446 feet channelward of the existing bulkhead. Gangplank Marina: To construct an 8-foot wide by 1,150-foot long and a 10-foot wide by 850-foot long floating head dock with six 4-foot wide by 30-foot long and eight 4-foot wide by 42-foot long finger piers three 5-foot wide by 60-foot long gangways, three 5- foot wide by 80-foot long gangways, and four floating dock extensions including Dock A -to install an 8-foot wide by 300-foot long floating pier with 15 4-foot wide by 50-foot long finger piers, one 5.5-foot wide by 55-foot long finger pier, one 6.5-foot wide by 65- foot long finger pier, and one 7.5-foot wide by 75-foot long finger pier; Dock B- to install an 8-foot wide by 285-foot long floating pier with 13 4-foot wide by 50-foot long finger piers and 14 4-foot wide by 45-foot long finger piers; Dock C- to install an 8-foot wide by 285-foot long floating pier with 14 4-foot wide by 45-foot long finger piers and 14 4-foot wide by 40-foot long finger piers; Dock D- to install an 8-foot wide by 85-foot long floating pier with ten 4-foot wide by 30-foot long finger piers; Dock E- to install an 8-foot wide by 135-foot long floating pier with 16 4-foot wide by 30-foot long finger piers; Dock F- to install a 10-foot wide by 60-foot long floating pier with eight 4-foot wide by 30-foot long finger piers; Dock G- to install an 8-foot wide by 220-foot long floating pier with 11 4-foot wide by 40-foot long finger piers, one 5-foot wide by 50-foot long finger pier, one 5.5-foot wide by 55-foot long finger pier, and one 6.5-foot wide by 65 foot long finger pier; Dock H- to install an 8-foot wide by 240-foot long floating pier with 24 4-foot wide by 40-foot long finger piers; and Dock I- to install an 8-foot wide by 245-foot long floating pier with 12 4-foot wide by 40-foot long finger piers and 13 4-foot wide by 35-foot long finger piers; to construct fueling dock facilities with diesel and gasoline stored in landside tanks; to construct a multi-purpose two-story Gangplank Marina building with a 6,300 square feet footprint on an 80-foot wide by 110-foot long concrete platform; to rehabilitate the existing Gangplank Marina service center and platform in place; to install 28 new 18-inch square concrete piles for the new concrete platform within a maximum of 830 feet channelward of the existing bulkhead. Pier 3: To renovate the existing Odyssey Pier; to construct a fixed concrete 29,300 square feet (0.67 acre) pier platform, incorporating the renovated Odyssey building and platform with a fixed, concrete 50-foot wide by 500-foot long pier, a two-story security and terminal building with a 9,000 square feet footprint, and floating dock system including to install a 10-foot wide by 550-foot long floating pier with one 5-foot wide by 60-foot long gangway and two 5-foot wide by 80-foot long gangways; and to install175 18-inch square concrete piles for the Pier 3 concrete platform, and 73 12-inch fender piles within a maximum of715 feet channelward of the existing bulkhead.