395 - GSA Development of St. Elizabeths Campus
395 - GSA Development of St. Elizabeths Campus
395 - GSA Development of St. Elizabeths Campus
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sidewalks, buffer area, parking on both sides, five travel lanes and a raised median withleft turn bays. In addition, a new signal is installed at the Martin Luther King Jr.Avenue/DHS Gate 2 intersection.• The estimated construction cost for Alternative 2 is approximately $105 million,including $92.2 million for the I-295/SCS/Malcolm corridors and $12.8 million for theMLK Jr. Avenue corridor.Traffic operation analysis for Alternative 2 is provided in Section 5.5 <strong>of</strong> this document.2.4.3 Build Transportation Alternative 2 ModifiedAlternative 2 Modified describes the second <strong>of</strong> two recommended transportation improvementplans that are chosen for further analysis for the Build scenario, which assumes that DHSconsolidation and relocation to <strong>St</strong>. <strong>Elizabeths</strong> does occur. Transportation improvementssuggested under this alternative for the West and East <strong>Campus</strong>es and surrounding network arelisted below:• Similar to Alternative 2, the West Access Road will be extended to the south to MalcolmAvenue and to a new elevated signalized intersection to tie to I-295 and SCS. Howeverthe fly-over ramp is modified to minimize construction footprint.• At the I-295/Malcolm X Avenue interchange, similar improvements to Alternative 2 areproposed except:- Change configuration <strong>of</strong> the two new fly-over ramps from/to I-295 so that only onenew bridge is needed to be constructed over I-295- The new I-295 NB on-ramps from both EB and WB Malcolm X Avenue merge firstinto one single collector-distributor road before further merging onto I-295 NB.Realign the new connection from the new elevated signalized intersection to theMalcolm X Avenue to minimize impact to the adjacent NPS land• Martin Luther King Jr. Avenue will be modified. Between Golden Raintree Drive andLebaum <strong>St</strong>reet it will have sidewalks, buffer and five travel lanes including a centerTWLT lane; from Lebaum <strong>St</strong>reet to Alabama Avenue it will have sidewalks, buffer area,parking on both sides, five travel lanes and a raised median with left turn bays. Inaddition, a new signal is installed at the Martin Luther King Jr. Avenue/DHS Gate 2intersection.• Shuttle buses will provide service from the two nearby Metrorail stations <strong>of</strong> Anacostiaand Congress Heights to the West and East <strong>Campus</strong> gates, with details still beingworked out with WMATA.• The estimated construction cost for Alternative 2 Modified is approximately $123.7million, including $114.4 million for the I-295/SCS/Malcolm corridors and $9.3 millionfor the MLK Jr. Avenue corridor.• It would require taking some 9.2 acres <strong>of</strong> NPS Parkland.• Details <strong>of</strong> the Alternative 2 Modified are provided in the following sections.2-11