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October, 1914 THE MARINE REVIEW | 371 GT Ry. BLACK FRoCK HARBOR UPPER WING WALL Mm wee ee ee en a ee ee eee ee rr ary Ahora el te faa jam pa oa ea ' ea ne a ee et : SCALE OF FEET 0 200 400 600 800 FT. LOCATION PLAN i Tr '<----- ------ - SAT | ae wl {Li fetet4atstet7)4 12 pol" 2] 13114115 }1e 1 17 | 18 | t9 | 20 24|2s| 26] 27]28| 29 | 30/31 |e] 7 "Rock 39.2° S37 398° Qo | : 40.5 39.7" 39-5} 33 - VT ' t : <-- - ------ oe oe 817 a ros, [34 N bk 35 0 400 250' 36 | "> : oO : 73 37, & 36 | | [72 IS25' 'me | 152) +- 100° -- 163.5 + 122 6 Sec. 5 SEC. 4 SEC.3 Seq. 2. SEC | 39} VL7 70 |e 39. 5 7 3718 | a 66 165 | 64 | 63 [62 | 61 | 60] 59 | 58 [57 [56 54 |52 |52|51 | 50/49 |48 [47 | 46 | 45 | 44 a bed => 187 = ec Channel 50 ft. wide /0ft deep Pesca beac get i } 1 100~--s«sSO ° 100 200 300 SCALE OF FEET GENERAL PLAN OF LOCK AND COFFERDAM £1.580.8 : ee s \ a) Mean Lake Level £1.573:8 , rr" - Ch arire JS de Oe SS eames = eae BN Sor em a el wy RL. Channel Side Tike Nee a J. a) 10 oO 1O 20 SCALE OF FEET 26" 23 2/' | Grade ly. | i CIO IOC Os --- 1 -- --_---- ane rao se ee |! | ' | | | 4 Cosy Grade for 300 i SS Grade ___|. ee __ = "eee === a ------------ ---- i Oe A pararmne: ol Sameer ' a Gg" = 4 ---- Gross SECTION oF Upper Wine WALL. Gross Section oF Lower WING WALL. CROSS SECTION OF WING WALLS . £ ~8 £15808 : : j ey tS72 8° 0 3 hau es (are Gig fuses Mean Rwer Level Yi A tee oe eee ar a eae ene Ge AL ei Eiiling | IK ey EL NEN Cup ces : ue ed, : i & ] Tee . Woah ': min Ys eee LO eee ': S40); Fine Sand &Graveh} i <# sy .|Fine Sand & Gravel " Sct Pes we tyes fay et : oe L Concrete. tS eles ( bok 2 AES Zs Bic ' se 2704 7 oe Shes Se el ase ee | | Ryans E o k Wall) pak WO PWS Vie Ai, Zips | MWY Sou VAM Dey se Gravel & /clay 7 (ZY GA, L, avel & Cla YEE C7172 ey 6078. Kh kofdepybe Zz Vit je ar fl} % a L he UW =~ a & El Salo ao Te oe TTT seve sie 22) 42 pale 30° ee -- 3 a8 aa gee re < ce : = 2 1 1 $e 1 1 1 1 40. 60 80 100 FT. geo #0 SCALE of FEET | CROSS SECTION