Section 01 30 00_10 Table B.pdf

Charleroi Upper and Lower Guard Walls

TABLE B

UPPER POOL - MONONGAHELA RIVER LOCKS AND DAM 4

EXCEEDENCE DURATIONS FOR VELOCITIES UP TO 5 FEET PER SECOND AT TWO LOCATIONS

UPSTREAM OF THE DAM

TABULATED VALUES ARE AVG % OF THE TIME THAT THE VELOCITY (COL 1) &

CORRESPONDING DISCHARGE (COL 2) ARE EXCEEDED

V fps Q cfs Pool El. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Computed mean velocities at sta 3+75.5A w/ new river wall (u.s. river chamber pintle)

1.0 8000 * 57 68 80 63 44 21 13 13 7 10 28 55

2.0 16000 * 30 38 46 30 19 9 5 5 2 3 10 24

3.0 23500 * 15 20 26 14 10 5 2 2 1 1 4 12

4.0 31500 * 8 11 14 6 6 3 1 1 1 1 2 6

5.0 39000 * 4 5 6 3 3 2 0.3 0.4 0.2 0.4 1 3

Computed mean velocities at sta 12+30.98A (us end exist guard wall)

1.0 13000 * 38 46 57 40 25 12 7 7 3 4 14 33

2.0 26000 * 12 16 21 11 9 5 2 2 1 1 3 9

3.0 39000 * 4 5 6 3 3 2 0.3 0.4 0.2 0.4 1 3

4.0 52000 * 2 2 2 1 1 1 0.1 0.2 <0.1 0.2 0.3 1.5

5.0 65000 * 1 1 1 0.5 0.4 0.4 <0.1 0.2 <0.1 0.1 0.2 1

Surface velocities from WES model at sta 12+30.98A (us end exist guard wall)

1.0 9500 * 51 61 72 55 37 17 10 11 5 8 23 47

2.0 19000 * 23 29 36 22 14 7 4 3 1 2 6 18

3.0 28000 * 11 14 18 9 8 4 1 1 1 1 3 8

4.0 38000 * 4 5 7 3 3 2 0.4 0.4 0.2 0.4 1 3

5.0 47000 * 2 3 3 1 1 1 0.1 0.2 0.1 0.2 0.4 2

* The pool is maintained between 743.5 and 744.5 for flows up to ±75,000 cfs by opening the dam gates as required.

SECTION 01 30 00.10 TABLE B