Owner
National Park Service
Property
Smithsonian–National Mall Metrorail station
Description
Modifications to vent shafts for flood protection
Review Type
Final
Recommendation
No objection to final design for modifications to four vent shafts west of the north entrance to the Smithsonian–National Mall Metrorail station, per materials received 4 September 2025. Final design is consistent with the previously approved concept design and associated provisions. (Previous: CFA 18/JAN/18-3)