Is new rail siding needed on existing rail lines if rail is used, or will DCA build a spur to the launch sites?
June 15, 2020Has DCA determined if these trestle bridges would be a hazard for either the trains or the workers in the dig areas? Will the TBM be tunneling under the bridges?
June 15, 2020The data in the presentation was shown for one launch, maintenance or reception shaft site. The launch shafts would be located approximately 15 miles from the reception shaft with maintenance shafts located approximately every 5 miles between the launch and reception shafts. Several tunnel boring machines could be operating at launch shafts simultaneously; however, the schedules have not been completed at this time.