To future mappers:
RFK Stadium will be demolished by 2021, this eNB will then either move to new location or permanently disappear. If it moves to new location, consider deleting all existing cells and remap everything. -- 05/27/2020
UPDATE: Delayed to 2022 per https://www.bizjournals.com/washington/news/2020/08/25/dc-delays-rfk-demolition.html