Site Development Guide - National Capital Planning Commission

INTELLIGENCE COMMUNITY CAMPUS - BETHESDASite Development Guidecan be appropriately addressed as needed. This will be documented during the ongoing NEPA analysisfor the proposed action.Site grading requirements have been minimized with the concept design approach and soil disturbancewill be managed in accordance with local requirements.Stormwater runoff will be significantly reduced from the site through the use of permeable pavements,vegetative infiltration areas and other best management practices. These features will be designed inaccordance with Maryland Environmental Site Design principals and the proposed facility will result insignificant improvements to water quality emanating from the existing site due to the reduction in theamount of impervious cover on the site. The redevelopment of this site will take the site from a 67%impervious cover condition to approximately 38% impervious cover condition, a 49% reduction.Stormwater design will be developed following federal requirements for Low-Impact Developmentoutlined in the Energy and Infrastructure Security Act (EISA, Section 438) and governing body policies.Consolidating the parking into a tiered garage enables the proposed development to restore significantgreen space to the front of the building consistent with regional planning objectives. Approximately 6acres of existing site pavements will be reclaimed for landscaping under the proposed plan.A comprehensive landscaping plan will be developed in conjunction with the proposed facilities to providean enhanced viewshed from Sangamore Road and break up building masses. This will incorporate nativespecies endemic to the region to accentuate connectivity to the adjacent parkland. The new CentrumBuilding will be very effective in shielding the parking garage from view and the elimination of 1,800 atgrade parking spots will greatly improve the site persona from the core business corridor.Overall the proposed facilities enable targeted reuse of this site in environmentally sustainable mannerand the architectural concepts result in a demeanor consistent with regional planning objectives.Achievement of these objectives will be documented through the LEED process. The proposeddevelopment is focused on achieving a minimum of a LEED Silver certification. These targets will betracked throughout design to be sure they can be met cost-effectively.Key Issue:LEED TM Certification will enable us to ensure that design team recommendations are followed and wedeliver an efficient, environmentally sustainable design.Section 3: Page 9 of 9