Project: S-F2-198 Scale: 1:2400,.5:12, vert. scale 1:120 horz. scale 1:600 Image is from a copy of the original on Mylar. "completed under W.P.A. 1937" All elevations referred to mean low water: mean low water elev = 0.000 M.L.W. M L W Datum = -2000 U S C & G.S. mean sea level datum