Map It
Site Name Aqueduct Lock 20 - River
CountyMontgomery
Water BodyPotomac River
Physical AddressMacArthur Boulevard (east of Olmstead Island)
DirectionsFrom 495 take exit 41 toward Carderock/Great Fall Street. Merge onto Clara Barton Parkway. Left at MacArthur Boulevard NW, drive to the end
Owner/Manager NameNational Park Service
Owner/Manager Phone301-739-4200
Owner/Manager Websitewww.nps.gov/choh/index.htm
Owner/Manager Email 
CommentsPlease note that this access point requires a portage from the parking lot and across the Lock 20 bridge. It is about 350 feet upstream of water intake dam. The fee is $5 per car.
# of Ramps0
# of Ramps ADA0
Ramp Width (Feet)0
Ramp SurfaceDIRT
Large BoatsNo
Vessel Size NotePlease note that "large boats" is intended as a general reference to ramp capacity. Generally, vessels less than 16 feet in length are considered small and those greater than 16 feet as large.
Soft LaunchYes
Soft Launch ADANo
# of Piers0
Transient UseNo
HoursOfOperation 
Fee Or Permit RequiredYes
Parking Lot TypePAVED
Parking Lot SizeLARGE >20
# of Car Spaces100
# of Car Spaces ADA8
# ofTrailerSpaces0
# of Trailer Spaces ADA0
Turnaround AreaYes
GateNo
RestroomPERMANENT
Trash ServiceNo
PumpoutNo
Fuel on siteNo
Questions And UpdatesIf you have a question about this site, contact the management agency using the phone number or contact information provided above. Permit/launch fees can change without notice so this site does not list them. Any corrections or updates to the information above can be sent via e-mail to Lisa.Gutierrez@Maryland.gov
Tide Information http://dnr.maryland.gov/Fisheries/Pages/Tide-Finder.aspx
 Map It