05438500 DATA: Discharge Tables, 2001

Station list Available data
ROCK RIVER BASIN

05438500 KISHWAUKEE RIVER AT BELVIDERE, IL

LOCATION.-- Lat 42°15'22", long 88°51'47", in SE1/4SE1/4 sec.27, T.44 N., R.3 E., Boone County, Hydrologic Unit 07090006, on left bank at Belvidere sewage-treatment plant, 1.3 mi downstream from bridge on State Street in Belvidere, 3.0 mi downstream from Piscasaw Creek, and at mile 21.9.

DRAINAGE AREA.-- 538 mi².

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

DISCHARGE: October 1939 to current year.

STAGE: Water years 1994-2001.

REVISED RECORDS.-- WSP 1175: 1946. WSP 1508: 1940, 1942-43, 1947(M). WSP 1728: 1940(M). WDR IL-75-1: Drainage area. WDR IL-00: 1999.

GAGE.-- Water-stage recorder, phone telemeter and crest-stage gage. Datum of gage is 738.34 ft above sea level (U.S. Army Corps of Engineers bench mark). Sept. 29, 1939, to Sept. 30, 1942, nonrecording gage at site 1.3 mi upstream at datum 3.99 ft higher, and Oct. 1, 1942, to Sept. 30, 1973, nonrecording gage at present site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 11,900 ft³/s, Feb. 20, 1994; gage height 14.19 ft; minimum discharge, 14 ft³/s, Sept. 19, 1988, observed.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood of Jan. 24, 1938, reached a stage of 16.9 ft, backwater from ice, from information by sewage-treatment plant employees.

REMARKS FOR CURRENT YEAR.-- Records good 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	386	235	305	e225	552	1710	488	352	419	181	100	83
2	357	237	298	e220	419	1400	462	341	606	174	155	81
3	337	236	292	e210	392	1320	441	327	640	170	141	92
4	379	231	287	e220	465	1310	427	318	546	169	117	107
5	442	229	282	e225	423	1150	438	311	592	163	107	105

6	421	237	e240	e225	374	972	495	305	826	156	101	98
7	388	306	e220	e220	342	866	519	314	813	157	94	204
8	362	411	e210	e215	355	829	499	341	677	162	88	581
9	345	441	e210	e200	1180	761	482	324	563	156	84	622
10	334	626	e210	e205	1800	717	477	322	485	142	87	551

11	321	743	e210	e210	2210	778	520	461	429	136	85	376
12	306	644	e210	228	2720	841	832	729	454	131	81	266
13	297	536	e210	233	2050	967	1030	711	633	121	82	213
14	289	472	e215	245	1510	902	929	571	497	118	79	187
15	281	426	e220	271	1190	959	755	500	428	113	77	170

16	278	400	e220	287	1020	1200	648	443	406	113	134	159
17	274	375	e230	291	815	1210	573	385	365	111	140	154
18	265	349	e230	272	627	1100	517	347	361	116	118	156
19	261	336	237	e240	705	1020	486	314	364	116	118	402
20	258	328	239	e200	600	920	488	297	323	112	109	640

21	256	305	230	e200	540	847	502	325	303	106	100	881
22	252	282	224	e205	509	789	600	356	293	133	97	938
23	255	298	227	e200	470	739	692	348	276	261	99	810
24	255	283	232	e190	677	690	623	349	256	181	103	773
25	255	279	232	e170	3160	634	529	358	241	140	107	611

26	256	296	233	e180	3740	583	476	375	226	127	127	481
27	256	302	239	e170	3220	549	438	423	213	118	119	399
28	251	297	243	188	2120	523	400	483	202	113	105	343
29	239	301	245	250	---	513	375	425	194	114	95	309
30	237	304	242	366	---	498	364	366	189	111	89	285

31	236	---	e240	529	---	490	---	348	---	103	88	---

TOTAL	9329	10745	7362	7290	34185	27787	16505	12169	12820	4324	3226	11077
MEAN	301	358	237	235	1221	896	550	393	427	139	104	369
MAX	442	743	305	529	3740	1710	1030	729	826	261	155	938
MIN	236	229	210	170	342	490	364	297	189	103	77	81
CFSM	.56	.67	.44	.44	2.27	1.67	1.02	.73	.79	.26	.19	.69
IN.	.65	.74	.51	.50	2.36	1.92	1.14	.84	.89	.30	.22	.77

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2001, BY WATER YEAR (WY)
MEAN	235	285	300	297	420	681	635	493	448	290	213	245
MAX	1242	1328	1613	1053	1221	2337	2461	1610	1835	1815	1287	2215
(WY)	1973	1986	1983	1974	2001	1979	1993	1974	1999	1993	1987	1972
MIN	40.3	50.1	42.8	30.5	49.6	120	141	108	101	56.6	39.2	44.0
(WY)	1957	1957	1964	1940	1940	1956	1963	1949	1977	1941	1964	1964

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1940 - 2001
ANNUAL TOTAL	178247		156819
ANNUAL MEAN	487		430		378
HIGHEST ANNUAL MEAN					992	1993
LOWEST ANNUAL MEAN					112	1963
HIGHEST DAILY MEAN	4850	Jun 13	3740	Feb 26	8860	Jun 14 1999
LOWEST DAILY MEAN	104	Sep 7-9	77	Aug 15	15	A
ANNUAL SEVEN-DAY MINIMUM	107	Sep 4	82	Aug 9	23	Jan 2 1940
MAXIMUM PEAK FLOW			4040	Feb 26	11900	Feb 20 1994
MAXIMUM PEAK STAGE			8.70	Feb 26	14.19	Feb 20 1994
INSTANTANEOUS LOW FLOW			67	Jul 13	14 B	Sep 19 1988
ANNUAL RUNOFF (CFSM)	.91		.80		.70
ANNUAL RUNOFF (INCHES)	12.32		10.84		9.54
10 PERCENT EXCEEDS	1120		819		810
50 PERCENT EXCEEDS	269		305		214
90 PERCENT EXCEEDS	153		114		69

	A - Dec. 30, 1939; Jan. 7, 1940.
	B - Observed.