Station list     Available data
LOWER MISSISSIPPI RIVER BASIN


07010000       MISSISSIPPI RIVER AT ST. LOUIS, MO



LOCATION.-- Lat 38°37'44", long 90°10'47", Hydrologic Unit 07140101, on downstream side of west pier of Eads Bridge at St. Louis, 15.0 mi downstream from Missouri River, 19.2 mi upstream from Meramec River, and at mile 180.0 above the Ohio River.

DRAINAGE AREA.-- 697,000 mi2, approximately.

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: January 1861 to current year. Monthly discharge only for some periods, published in WSP 1311.
 

STAGE: March 1933 to current year in reports of the U.S. Geological Survey. Since January 1861 in reports of Mississippi River Commission. Since January 1890 in reports of the National Weather Service.
SURFACE-WATER QUALITY
 

SEDIMENT: April 1948 to current year.
 

WATER TEMPERATURE: October 1951 to current year.

REVISED RECORDS.-- WDR MO-76-1: Drainage area, WDR MO-98-1: Extreme outside period of record.

GAGE.-- Water-stage recorder, National Weather Service gage-height and U.S. Army Corps of Engineers satellite telemeters at station. Datum of gage is 379.94 ft above sea level. Prior to May 5, 1934, nonrecording gage 0.4 mi downstream; May 5, 1934, to Dec. 9, 1952, water-stage recorder at site 20 ft downstream at present datum.

REMARKS.-- Natural flow of stream affected by many reservoirs and navigation dams in upper Mississippi River Basin and by many reservoirs and diversions for irrigation in Missouri River Basin. Sediment discharge computed from turbidity readings.

EXTREMES FOR PERIOD OF RECORD.--
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 6,720 mg/L, Feb. 24, 1985; minimum daily mean, 19 mg/L, Jan. 21 and 22, 1967.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 9,830,000 tons, Feb. 24, 1985; minimum daily, 2,800 tons, Jan. 21, 1967.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood of June 27, 1844, reached a stage of 41.32 ft, from floodmarks, discharge, 1,000,000 ft3/s, computed by U.S. Army Corps of Engineers. Flood in April 1785 may have reached a stage of 42.0 ft. Minimum flow, 18,000 ft3/s, Dec. 23, 1863.

REMARKS FOR CURRENT YEAR.--Records good.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 160000  107000  111000  83400  77300  169000  136000  160000  172000  364000  136000  103000 
2 152000  112000  112000  92400  74400  157000  129000  145000  174000  345000  127000  106000 
3 138000  99800  105000  98500  81200  158000  123000  144000  194000  331000  132000  101000 
4 134000  105000  109000  100000  86200  171000  120000  138000  193000  316000  133000  99400 
5 127000  105000  112000  89800  79800  170000  109000  129000  198000  305000  130000  88800 
 
6 126000  109000  119000  87800  80700  169000  116000  121000  211000  293000  122000  78600 
7 119000  108000  122000  89400  85500  158000  114000  137000  213000  285000  113000  83800 
8 124000  105000  131000  79700  78000  154000  117000  183000  212000  287000  129000  76800 
9 119000  102000  119000  88900  75900  151000  109000  143000  215000  286000  145000  80000 
10 115000  104000  124000  94400  72400  144000  105000  123000  218000  276000  160000  86400 
 
11 116000  104000  119000  93700  75400  142000  102000  111000  221000  248000  149000  92700 
12 118000  108000  122000  86400  72600  144000  105000  121000  229000  238000  133000  92700 
13 118000  110000  129000  94100  77800  140000  105000  127000  232000  243000  126000  88200 
14 116000  106000  121000  92600  77600  130000  106000  119000  230000  240000  109000  101000 
15 116000  102000  113000  91300  74600  121000  97800  122000  232000  240000  92500  105000 
 
16 109000  104000  111000  83200  77800  119000  93500  118000  241000  242000  97600  110000 
17 111000  103000  112000  77400  75900  125000  99300  122000  258000  243000  106000  105000 
18 103000  101000  112000  80600  100000  126000  100000  121000  272000  241000  116000  115000 
19 107000  106000  98200  79100  110000  128000  92500  122000  280000  256000  117000  115000 
20 104000  99200  96800  87000  120000  137000  109000  118000  283000  260000  117000  109000 
 
21 105000  90700  82400  82700  109000  138000  115000  128000  295000  259000  114000  102000 
22 105000  93000  71100  78200  98400  128000  140000  142000  304000  251000  114000  101000 
23 105000  97400  69000  76700  88500  133000  171000  157000  310000  240000  115000  99400 
24 104000  106000  69000  76000  88900  135000  175000  160000  342000  226000  125000  90400 
25 106000  114000  75400  73900  88400  129000  159000  165000  354000  204000  145000  96200 
 
26 108000  110000  78800  67900  109000  127000  163000  164000  344000  182000  164000  113000 
27 109000  110000  72200  77500  138000  128000  151000  183000  350000  162000  148000  115000 
28 110000  114000  72800  87400  162000  116000  155000  226000  376000  151000  121000  106000 
29 105000  121000  73400  87300  169000  114000  155000  230000  385000  153000  109000  101000 
30 104000  115000  72000  84700  ---  124000  159000  206000  381000  135000  102000  99000 
 
31 111000  ---  77100  83000  ---  134000  ---  193000  ---  134000  95200  --- 

MEAN 116300 105700 100400 85320 93250 139300 124400 147700 264000 246300 123900 98680
MAX 160000 121000 131000 100000 169000 171000 175000 230000 385000 364000 164000 115000
MIN 103000 90700 69000 67900 72400 114000 92500 111000 172000 134000 92500 76800
IN. .19 .17 .17 .14 .14 .23 .20 .24 .42 .41 .21 .16


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1933 - 2000, BY WATER YEAR (WY)
MEAN 140000 144700 124600 116200 144500 230200 306500 290900 269400 223300 145900 137600
MAX 575300 359200 452400 307800 301400 521800 692500 588700 600600 808800 700200 531800
(WY) 1987 1986 1983 1973 1974 1973 1973 1995 1947 1993 1993 1993
MIN 44170 47920 42130 31340 41900 74550 110100 79500 70260 67130 43510 54640
(WY) 1940 1940 1938 1940 1940 1964 1934 1934 1934 1936 1936 1939

SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1933 - 2000
ANNUAL MEAN 233100      137200      189600     
HIGHEST ANNUAL MEAN 429700      1993
LOWEST ANNUAL MEAN 67700      1934
HIGHEST DAILY MEAN 548000          May 8 385000          Jun 29 1050000      Aug 1 1993
LOWEST DAILY MEAN 69000          Dec 23,24 67900          Jan 26 27800      Dec 12 1937
ANNUAL SEVEN-DAY MINIMUM 72600          Dec 22 72600          Dec 22 28200      Jan 18 1940
INSTANTANEOUS PEAK FLOW ---      386000          Jun 29 1080000      Aug 1 1993
INSTANTANEOUS PEAK STAGE ---      25.43     Jun 29 49.58 Aug 1 1993
INSTANTANEOUS LOW FLOW ---      65800          Jan 26 27800      Dec 12 1937
ANNUAL RUNOFF (INCHES) 4.54 2.68 3.70
10 PERCENT EXCEEDS 456000      240000      369000     
50 PERCENT EXCEEDS 201000      116000      153000     
90 PERCENT EXCEEDS 105000      80700      69000     


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data