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407.7 408.7 408.4 402.1 404.0 404.1 405.0 403.1 400.5 402.8 404.6 405.5

405.2 404.0 404.8 406.3

410.1

407.5

405.6

404.9

405.9

404.0

406.3

408.6

409.5

409.0

406.2

407.3

409.0

408.2

407.9

406.1

404.1

401.8

400.8

401.4

403.6

404.5

400.0

400.4

404.4

405.3

404.7

403.3

401.3

401.3

401.4

403.2

406.2

406.6

408.8

412.2

414.1

414.6

416.3

415.9

416.1

415.5

415.3

423.8

423.8 416.1

414.6 414.6

416.0 418.3 419.4 415.7

410.3 409.5 407.5

402.4 402.2

402.7 402.0 401.8 403.3

403.4 402.1

402.5 401.5

400.5 400.4 400.7 401.4

401.8 403.6

405.2 405.1

402.9 402.2

403.4 404.6 404.3 407.5 408.9 409.1

407.1 407.5 409.1

404.4 402.5

404.0 402.9

414.6

413.2

411.8

410.0

407.8

406.3

407.2

404.9

406.6

404.9

404.8

403.3

403.2

402.4

403.1

402.3

401.9

401.3

404.9

404.3

403.4

402.5

399.6

404.3

405.8

406.5

406.1

404.7

402.5

404.2

402.1

401.0

403.5

404.6

402.6

402.9

404.0

405.1

403.8

403.1

406.4

406.0

414.9

418.6

416.5

412.6 408.8 410.2

405.5 401.7 401.2 402.1

401.8 401.9

399.9

400.2 401.0

402.2 399.5

400.0 401.5

399.7 399.6 401.2

406.2 406.3

407.4 408.5

405.3 404.5

402.7

404.6 404.9

405.8

407.5 406.8

404.3

403.3

404.0

403.7

403.0

400.8

398.4

399.9

402.8

398.2

397.7

402.0

407.0

407.9

407.2

405.8

410.2

411.1

412.1

408.3

405.5

409.8

416.4

423.9

417.3

411.3

410.6

409.5

408.5

409.1

407.8

407.1

405.1

402.2

400.2

404.1

404.5

405.1

405.8

402.0

402.5

403.4

401.8

401.9

404.2

404.9

404.1

403.9

405.6

406.6

410.2

419.1

413.7

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NUMBER

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umr2

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of Engineers

US Army Corps

DIK

E 2

26.1(R)

DIK

E 227.6(L)

DIK

E 2

26.0(L)

DIK

E 2

25.4(L)

DIK

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25.2(L)

CH

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RO

N 2

25.7(R)

CH

EV

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25.5(R)

DIK

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25.8(L)

DIK

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25.6(L)

226.3(R)

DIK

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JOHNSO

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BOLT

MO

UND

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226.1(L)

227.0(R)

K227.0(R

)

K227.3(R

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226.5(L)

226.1(R)

226.1(R)

225.4(R)

227.8(L)

227.0(L)

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37

N

MIL

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BR

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K

LA

NDI

NG

MI

LA

N

LA

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JO

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1956-57

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WA

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NC

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PL

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1956-57

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410.6

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418.1

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418.0

218.0

DIX

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DARDENNE ISLAND

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1,112,000 N 486,00

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496,00

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1,106,000 N

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DIK

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L)

DIK

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MA

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18,

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15.9 GEODETIC VERTICAL DATUM OF 1929 (NGVD 29).

3. VERTICAL DATUM IS BASED ON THE NATIONAL

ZONE STATE PLANE.

COORDINATES SHOWN ARE MISSOURI EAST

NORTH AMERICAN DATUM OF 1927 (NAD 27),

2 HORIZONTAL DATUM IS BASED ON THE

CHANNEL SOUNDED AS SHOWN.

BY HANSON ENGINEERS INC. SIDE

1. MAIN CHANNEL SOUNDED JULY 18, 2011

SURVEYED APRIL 17, 2012

BY ST LOUIS DISTRICT

AP

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419.5

5

407.2

228.3

418.1

L

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424.3

1

226

227

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404.5

404.4

406.7

401.7

403.4

405.5

406.8

409.0

409.4

405.1

403.8

403.5

405.0

406.1

407.0

408.0

409.5

410.7

410.7

411.6

403.5

402.9

403.3

403.8

404.8

406.0

406.6

406.3

405.9

405.6

403.9

402.1

402.1

410.8

408.8

408.9

409.6

408.5

405.8

405.3

404.6

407.5

407.1

407.4

407.7

409.0

409.6

410.3

411.8

405.5

405.4

406.6

407.7

407.5

408.2

409.0

410.8

412.2

412.3

413.4

412.9

412.1

411.8

405.8

406.0

406.3

406.0

406.6

407.4

406.8

407.4

409.0

409.2

410.2

410.4

411.7

412.0

412.5

412.6

412.6

411.3

412.5

412.2

410.8

403.6

405.5

407.1

406.7

407.0

406.8

406.5

406.5

408.0

408.6

409.6

409.2

410.6

410.8

411.6

411.5

411.0

411.2

410.9

411.1

410.6

410.4

409.3

407.2

406.1

406.6

406.5

406.3

406.2

406.0

407.2

408.1

408.0

408.1

408.8

410.3

409.9

410.0

409.9

410.0

410.5

409.1

408.9

407.5

407.4

407.1

411.4

404.6

405.8

406.0

406.9

407.0

406.8

406.8

407.6

406.9

407.0

406.7

406.9

408.1

409.0

409.0

409.1

409.4

408.6

407.9

406.3

407.0

407.0

408.2

406.6

405.0

404.4

404.7

404.5

403.5

403.1

402.0

401.6

403.0

404.5

405.8

408.0

409.3

411.0

410.8

409.1

408.1

412.6

398.8

402.1

406.6

403.6

396.8

389.6

382.8

378.6

377.7

380.0

380.6

385.1

394.2

401.0

405.6

408.0

410.1

411.7

410.6

414.7

412.8

403.0

396.9

391.4

393.6

393.5

380.8

362.9

352.1

348.2

347.5

348.1

349.4

354.0

367.3

383.0

391.6

396.8

401.7

404.2

399.0

398.8

406.7

399.2

399.7

398.3

394.3

391.2

389.0

383.2

380.3

380.0

378.1

384.1

392.8

394.4

388.3

385.4

380.6

389.1

398.2

413.5

405.9

402.2

402.4

401.6

400.3

397.7

395.6

395.4

394.6

395.4

397.2

400.5

403.8

405.6

404.5

403.1

410.9

401.8

400.9

400.2

400.1

400.0

400.6

400.9

401.2

401.6

401.8

402.6

403.0

404.0

404.7

405.3

408.2

400.1

400.4

400.3

399.8

400.4

401.7

402.7

403.3

404.4

404.2

403.6

402.7

401.4

404.3

404.9

407.6

397.2

397.4

397.0

398.0

398.1

398.5

399.7

401.2

402.5

401.6

403.7

403.8

403.6

400.6

396.3

394.9

396.6

398.3

399.7

401.4

402.5

404.3

403.8

403.1

404.8

405.0

399.4

394.5

395.7

396.3

398.9

400.6

402.8

404.9

406.2

406.3

406.4

406.4

406.0

402.0

395.2

390.4

393.4

395.2

396.9

399.1

400.2

402.4

405.5

407.4

407.7

409.3

402.8

392.1

389.1

392.0

395.7

396.8

399.5

403.4

405.1

405.9

409.3

400.8

396.4

395.0

397.8

399.5

402.0

403.2

403.0

403.2

404.9

406.1

403.9

402.2

402.3

402.6

402.8

401.4

399.1

401.4

400.7

400.1

403.0

413.4

412.0 411.4 409.8 408.5 407.0 405.7 403.8 401.5 399.5 398.6 398.0 399.5 401.8

414.2 414.0 413.0 411.5 411.2 410.2 408.2 406.6 405.6 404.7 403.3 402.3 400.2 396.9

415.8 415.1 414.6 414.0 412.5 411.0 409.9 408.8 408.1 406.4 403.3 403.9 401.8 398.9 396.8 399.3

416.6 416.7 416.4 415.4 414.5 412.9 411.1 409.0 408.0 406.1 404.4 402.2 400.4 396.3 395.2 401.3 404.7

416.9 416.4 416.2 415.1 413.5 411.4 409.0 406.8 405.9 404.8 402.5 399.6 395.7 395.3 395.2 403.5

417.2 416.9 416.1 415.8 414.7 414.1 413.1 406.7 403.4 401.2 397.3 393.3 389.5 394.6 399.1

413.1 412.5 409.6 409.3 406.7 405.3 403.8 402.6 400.2 398.9 395.6 390.4 393.7 400.1

403.3 400.8 401.6 404.1 405.3 405.9 405.8 405.0 402.9 397.9 395.1 395.1 397.3 402.0

405.6 400.6 400.3 400.7 402.3 399.7 405.2 405.6 404.7 403.3 404.5 405.6 406.6 407.4 407.4 407.3 407.7 406.5 404.3 403.8

407.8 407.2 407.3 409.0 409.6 410.3 407.2 406.0 406.2 405.8 406.2 407.1 408.1 408.9 409.7 410.6 411.6 411.9 412.5 412.6 411.8 410.7 411.9 413.6

409.3 404.6 402.6 401.1 401.6 401.7 403.4 404.9 406.9 409.6 411.9 413.3 414.4 415.4 415.6 415.5 415.2 414.3 413.9 412.7 416.4

401.7 398.0 397.3 397.0 398.6 409.6 414.9 417.8 417.9 417.3

416.3 415.0 413.8

413.5 413.7 413.4

413.2 411.3 410.4 410.0 410.6 413.9