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DIMENSIONS.
Lock J.en qth betwcen qates __________700 fret, .
—„—Width, 80 „
—«— Depth. on. sill belave T. H.K ______^„
Daryc Gravihg Docks. length - ________RIZ „
—„ --------------Width- ai buttom 10 „
—„ -------„------Depth on Sill below T.H.W. 35 .
Small Gra ving Docks, Lenqtk . 815 „
—« -------» -----Wulth, ai battant GO .
— --------, -----Depth on sM beluw T.H.W. 30 .
N^TE
Hoth Grabing-Docks are (håndled, by central,
caissons, tormùtg Docks oP 4-50'.0~k 400'.O*,
500'.0" So 35o:o: or 550:0" & 300! 0".
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