Water Data Report 1997
04177000 OTTAWA RIVER AT UNIVERSITY OF TOLEDO, TOLEDO, OHIO
LOCATION.--Lat 41039'29", long 83037'19", in NE 1/4 sec. 32, T.9 S., R.7 E., Lucas County, Hydrologic Unit 04100001,
on left bank at auto bridge at University of Toledo, Toledo, Ohio, 0.4 mi downstream from Deline Ditch,5.6 mi
upstream from Sibley Creek, and 10.9 mi upstream from mouth.
DRAINAGE AREA.--150 mi2. Area at site used prior to Sept 30, 1948, 150 mi2, revised.
PERIOD OF RECORD.--March 1945 to September 1948 (published as "Tenmile Creek at Toledo"), August 1976 to current year.
REVISED RECORDS.--WSP 1307: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 576.28 ft above sea level. (From Aug. 1976 to July, 1979, at site
500 ft downstream. Prior to Sept. 30, 1948, water-stage recorder at site 2,500 ft upstream at datum 3.72 ft higher.
REMARKS.--Records fair except for periods of estimated record, which are poor. Water-quality data collected at this
site.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of June 1, 1943, reached a stage of 15.1 ft present datum, from floodmark,
Lucas County Sanitary Engineers; discharge, 3,400 ft3/s. Flood of Apr. 25, 1950, reached a stage of 15.0 ft present
datum, from floodmark; discharge, 3,300 ft3/s.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 3.6 4.7 20 86 e62 1260 99 54 912 597 9.2 13
2 3.7 3.8 23 81 e56 823 81 37 1920 437 9.1 12
3 2.4 3.5 23 87 e54 527 74 225 2330 190 11 12
4 2.2 3.5 20 83 262 366 80 636 1930 95 46 9.4
5 2.7 4.2 15 313 665 291 151 473 1130 56 17 8.7
6 3.0 4.4 20 438 857 282 186 385 541 40 15 9.4
7 3.5 141 15 e120 450 243 173 292 352 38 10 8.5
8 3.2 84 13 e80 260 208 111 198 240 32 9.3 8.3
9 8.5 37 12 e60 e150 187 79 160 172 35 9.1 11
10 7.6 23 12 e47 e110 224 64 121 122 24 7.7 39
11 6.3 16 44 e36 e80 230 58 90 91 22 13 14
12 9.9 11 53 e33 e60 162 98 99 78 19 23 16
13 12 7.9 102 30 e52 128 85 78 69 18 40 14
14 16 6.1 97 29 e45 1010 78 70 53 40 22 12
15 18 5.0 50 30 e41 1760 64 82 42 65 29 11
16 22 5.5 37 35 e38 1540 62 64 67 17 125 10
17 27 8.4 152 29 e37 646 59 58 50 15 306 99
18 64 9.5 e100 e26 e48 433 57 56 40 14 285 26
19 14 5.6 e50 e24 e100 330 52 137 36 12 124 76
20 4.7 5.0 e35 e23 495 262 48 135 32 12 65 820
21 6.5 4.5 e30 e22 1150 206 46 110 100 83 43 864
22 6.6 4.3 e23 324 1800 175 43 77 169 33 30 399
23 52 4.1 67 566 1560 127 40 63 106 25 21 153
24 20 5.7 394 494 766 103 41 57 64 22 80 78
25 6.0 17 677 e200 409 123 39 268 107 18 56 47
26 4.8 15 255 e150 324 125 36 480 389 16 64 35
27 5.7 9.2 134 e110 1270 108 33 302 443 15 39 27
28 4.9 7.2 89 e90 1670 100 41 162 187 14 26 21
29 15 6.9 97 e80 --- 116 38 304 91 12 20 19
30 71 27 122 e70 --- 122 38 597 142 11 16 19
31 8.1 --- 104 e66 --- 118 --- 607 --- 9.6 19 ---
TOTAL 434.9 490.0 2885 3862 12871 12335 2154 6477 12005 2036.6 1589.4 2891.3
MEAN 14.0 16.3 93.1 125 460 398 71.8 209 400 65.7 51.3 96.4
MAX 71 141 677 566 1800 1760 186 636 2330 597 306 864
MIN 2.2 3.5 12 22 37 100 33 37 32 9.6 7.7 8.3
CFSM .09 .11 .62 .83 3.06 2.65 .48 1.39 2.67 .44 .34 .64
IN. .11 .12 .72 .96 3.19 3.06 .53 1.61 2.98 .51 .39 .72
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1945 - 1997, BY WATER YEAR (WY)
MEAN 63.7 103 136 114 165 294 242 137 136 53.0 29.3 43.3
MAX 407 449 380 561 467 729 438 358 437 264 143 406
(WY) 1987 1993 1978 1993 1990 1978 1977 1945 1989 1992 1980 1981
MIN .85 3.04 6.14 4.92 30.4 56.0 20.4 21.4 7.36 8.46 .82 .13
(WY) 1947 1947 1947 1977 1978 1989 1946 1988 1988 1984 1946 1946
SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1945 - 1997
ANNUAL TOTAL 36243.0 60031.2
ANNUAL MEAN 99.0 164 126
HIGHEST ANNUAL MEAN 215 1993
LOWEST ANNUAL MEAN 65.5 1995
HIGHEST DAILY MEAN 1520 Jun 20 2330 Jun 3 3500 Mar 14 1982
LOWEST DAILY MEAN 1.6 Sep 20 2.2 Oct 4 .00 Aug 24 1945
ANNUAL SEVEN-DAY MINIMUM 2.8 Aug 24 3.0 Oct 2 .00 Aug 24 1945
INSTANTANEOUS PEAK FLOW 2710 Jun 2 a 3950 Mar 14 1982
INSTANTANEOUS PEAK STAGE 12.75 Jun 2 14.54 Mar 14 1982
INSTANTANEOUS LOW FLOW 2.2 Oct 4 .00 Sep 19 1945
ANNUAL RUNOFF (CFSM) .66 1.10 .84
ANNUAL RUNOFF (INCHES) 8.99 14.89 11.43
10 PERCENT EXCEEDS 264 437 315
50 PERCENT EXCEEDS 25 54 40
90 PERCENT EXCEEDS 3.8 8.0 7.0
a Peaks above base shown in table of peak discharges and stages at continuous-record surface-water-discharge stations.
e Estimated.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://pubsdata.usgs.gov/pubs/wdr/1997/oh-97-2/sw97/04177000.html
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