š Stone walls by the Washington Monument, part of an 80-year-old levee system.
š Designed to protect Washington's Federal Triangle from 100-year floods.
š”ļø See a crucial flood defense structure
šļø Learn about D.C.'s infrastructure history
š¶ Located between Washington Monument and Lincoln Memorial
š Located on 17th Street.
šļø Crews practice assembly annually.
Last updated 5 days ago
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