05550000 DATA: Discharge Tables, 2001

Station list Available data
ILLINOIS RIVER BASIN

05550000 FOX RIVER AT ALGONQUIN, IL

LOCATION.-- Lat 42°09'59", long 88°17'25", in NE1/4NW1/4 sec.34, T.43 N., R.8 E., McHenry County, Hydrologic Unit 07120006, on right bank 20 ft upstream from bridge on State Highway 62 (Algonquin Road) in Algonquin, 140 ft upstream from Algonquin Dam, and at mile 81.6.

DRAINAGE AREA.-- 1,403 mi².

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

DISCHARGE: October 1915 to current year. Monthly discharge only for some periods, published in WSP 1308.

STAGE: Water years 1994-2001.

REVISED RECORDS.-- WSP 1175: 1916. WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and concrete dam. Datum of gage is 729.48 ft above sea level. Prior to Oct. 20, 1933, nonrecording gage at site 20 ft downstream at same datum.

REMARKS.-- Flow regulated by Stratton Lock and Dam (previously known as McHenry Dam), 16 mi upstream from station, and occasionally affected by wind action.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 6,610 ft³/s, April 6, 1960 and April 2, 1979; maximum gage height, 4.50 ft, April 1, 1916; from graph based on gage readings; no flow, Nov. 26, 1952, Nov. 20, 1953, Oct. 25, 1956 and Sept. 9, 14, 1958, result of windstorm.

REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	1760	653	1010	605	1520	2960	1250	2260	1640	749	255	315
2	1670	729	1040	618	1650	3000	1260	1900	1630	716	296	288
3	1580	754	1010	619	1550	3000	1290	1650	1650	624	347	271
4	1620	840	935	e620	1480	3010	1270	1900	1660	534	418	340
5	1520	826	782	e620	1530	2950	1270	1840	1720	525	404	323

6	1360	844	742	634	1550	2860	1330	962	1770	449	398	306
7	1270	982	754	636	1560	2750	1210	878	1800	442	377	490
8	1250	1220	761	e640	1620	2680	1340	1040	1860	456	308	802
9	1160	1480	740	e650	2060	2600	1450	1080	1880	474	291	1190
10	954	1780	738	e660	2540	2470	1600	1120	1840	469	373	1340

11	915	1860	736	e680	2720	2440	1780	1630	1880	455	348	1620
12	892	1960	673	721	2820	2340	1860	1880	1990	424	315	1660
13	843	1950	644	720	2890	2270	2070	1850	2280	406	354	1610
14	767	1930	571	759	3090	2250	2090	1810	2820	376	310	1240
15	827	1890	523	819	3230	2310	2090	1770	3280	348	272	931

16	834	1790	469	870	3380	2390	2090	1790	3430	327	328	832
17	827	1760	622	917	3360	2410	2160	1780	3450	296	519	813
18	772	1550	629	944	3250	2460	2120	1790	3340	345	583	821
19	685	1450	634	1070	3110	2540	2080	1750	3030	472	638	993
20	628	1390	662	1170	3180	2570	2060	1670	2900	447	636	1270

21	685	1160	695	1160	3090	2550	2030	1630	2750	428	671	1460
22	685	1160	695	1140	3050	2500	2170	1560	2340	447	709	1460
23	672	1160	687	1100	2940	2450	2070	1560	1890	493	794	1510
24	684	1160	701	e1080	2910	e2400	2240	1590	1700	612	788	1530
25	677	1170	695	e1050	3270	e2310	2280	1580	1480	698	729	1500

26	650	1100	677	e1020	e2900	2180	2270	1600	1200	669	737	1460
27	696	1030	676	e1020	3000	2100	2430	1670	942	504	687	1450
28	750	1030	666	e1020	2910	1850	2460	1680	887	417	605	1410
29	694	996	624	1050	---	1750	2350	1710	850	404	509	1360
30	667	990	593	1200	---	1510	2310	1670	736	389	336	1310

31	660	---	578	1320	---	1280	---	1660	---	291	342	---

TOTAL	29654	38594	21962	27132	72160	75140	56280	50260	60625	14686	14677	31905
MEAN	957	1286	708	875	2577	2424	1876	1621	2021	474	473	1064
MAX	1760	1960	1040	1320	3380	3010	2460	2260	3450	749	794	1660
MIN	628	653	469	605	1480	1280	1210	878	736	291	255	271
CFSM	.68	.92	.50	.62	1.84	1.73	1.34	1.16	1.44	.34	.34	.76
IN.	.79	1.02	.58	.72	1.91	1.99	1.49	1.33	1.61	.39	.39	.85

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1916 - 2001, BY WATER YEAR (WY)
MEAN	617	816	784	722	889	1659	1720	1165	854	612	469	512
MAX	3650	2492	3105	2675	3613	4162	4961	3786	3610	2902	2964	2926
(WY)	1987	1986	1983	1960	1938	1918	1993	1973	2000	1938	1924	1972
MIN	31.8	147	185	142	168	274	237	150	110	57.7	31.4	52.9
(WY)	1957	1954	1940	1940	1940	1934	1934	1934	1934	1934	1934	1934

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1916 - 2001
ANNUAL TOTAL	482608		493075
ANNUAL MEAN	1319		1351		901
HIGHEST ANNUAL MEAN					1936	1993
LOWEST ANNUAL MEAN					202	1934
HIGHEST DAILY MEAN	5060	Jun 17	3450	Jun 17	6610	Apr 2 1979
LOWEST DAILY MEAN	385	Sep 10	255	Aug 1	12	A
ANNUAL SEVEN-DAY MINIMUM	418	Mar 12	312	Aug 31	19	Oct 16 1956
MAXIMUM PEAK FLOW			3520 B	Feb 16	6610	C
MAXIMUM PEAK STAGE			3.18 D	Jun 16	4.50 E	Apr 1 1916
INSTANTANEOUS LOW FLOW			188	Sep 3	.00	F
ANNUAL RUNOFF (CFSM)	.94		.96		.64
ANNUAL RUNOFF (INCHES)	12.80		13.07		8.73
10 PERCENT EXCEEDS	3030		2560		2040
50 PERCENT EXCEEDS	830		1170		604
90 PERCENT EXCEEDS	474		436		190

	A - Aug. 30, 31, 1934; July 28, 1942.
	B - Gage height, 2.88 ft.
	C - Apr. 6, 1960; Apr. 2, 1979.
	D - Discharge, 3,470 ft³/s.
	E - From graph based on gage readings.
	F - Nov. 26, 1952; Nov. 20, 1953; Oct. 25, 1956; and Sept. 9, 14, 1958, result of windstorm.