Repair by replacing Silver Ramp, approximately 30,000 SY of concrete pavements, with new concrete at full depth. Include new drainage course under new concrete , and base course beneath drainage course. Demolish existing pavement. Include new mooring points for mission aircraft and other associated aircraft which could utilize Silver Ramp. Stripe and make pavements according to aircraft parking layout. Excavation which uncovers contaminated soil beneath the Silver Ramp will be disposed of properly or replaced according to environmental laws and regulations.