USGS CD-ROM: Current Year Discharge

05438500 KISHWAUKEE RIVER AT BELVIDERE, IL

LOCATION.--Lat 42°15'22", long 88°51'50", in SE¼SE¼ 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.--October 1939 to current year.

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

GAGE.--Water-stage recorder 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.

REMARKS.--Records poor. Gage-height telemeter at station.

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

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	80	112	145	98	233	302	1080	655	418	937	156	117
2	79	109	140	127	345	290	1190	666	393	720	151	110
3	78	111	139	172	476	284	1100	720	369	615	151	106
4	78	109	138	279	466	281	879	698	354	654	180	103
5	74	112	136	410	417	274	715	660	350	645	188	100

6	71	123	129	531	368	271	610	642	344	557	357	96
7	73	130	125	648	339	268	555	1080	334	725	274	160
8	73	127	122	686	324	338	634	2260	318	613	251	149
9	77	123	121	606	313	512	970	2970	341	559	212	128
10	78	118	128	416	301	452	1150	2520	350	496	191	115

11	77	112	127	301	354	445	1080	1890	398	446	170	106
12	76	111	122	386	597	410	870	1410	543	410	158	101
13	94	110	117	282	673	396	760	1260	607	381	149	96
14	96	109	106	272	573	354	753	1170	568	356	143	127
15	93	112	115	320	483	320	714	1050	502	330	139	201

16	91	107	120	299	436	306	1130	930	442	312	131	207
17	89	101	114	282	428	316	1760	771	400	294	126	171
18	92	106	114	237	435	454	2180	671	415	280	123	151
19	91	107	115	247	413	723	1820	603	580	308	116	138
20	90	108	115	242	384	844	1420	563	640	289	111	128

21	90	109	117	234	359	752	1260	531	549	273	112	124
22	89	109	119	231	339	618	1350	496	455	270	113	119
23	90	106	119	228	325	537	1280	475	402	256	117	113
24	94	97	121	222	318	475	1080	543	367	233	117	114
25	98	111	122	215	307	427	916	517	346	218	139	117

26	107	109	119	212	298	404	868	469	2390	206	150	115
27	121	108	103	208	319	383	835	437	3190	197	128	110
28	130	113	101	208	317	376	769	461	2400	189	160	105
29	125	121	130	212	---	362	710	538	2340	181	169	109
30	119	139	108	215	---	347	678	511	1540	171	146	112

31	115	---	99	218	---	542	---	464	---	164	126	---

TOTAL	2828	3379	3746	9244	10940	13063	31116	28631	22645	12285	4954	3748
MEAN	91.2	113	121	298	391	421	1037	924	755	396	160	125
MAX	130	139	145	686	673	844	2180	2970	3190	937	357	207
MIN	71	97	99	98	233	268	555	437	318	164	111	96
CFSM	.17	.21	.22	.55	.73	.78	1.93	1.72	1.40	.74	.30	.23
IN.	.20	.23	.26	.64	.76	.90	2.15	1.98	1.57	.85	.34	.26

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1998, BY WATER YEAR (WY)
MEAN	232	284	303	293	402	688	632	480	408	285	216	239
MAX	1242	1328	1613	1053	1208	2337	2461	1610	1638	1815	1287	2215
(WY)	1973	1986	1983	1974	1997	1979	1993	1974	1993	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 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1940 - 1998
ANNUAL TOTAL	137562		146579
ANNUAL MEAN	377		402		371
HIGHEST ANNUAL MEAN					992	1993
LOWEST ANNUAL MEAN					112	1963
HIGHEST DAILY MEAN	7110	Feb 22	3190	Jun 27	8380	Mar 15 1944
LOWEST DAILY MEAN	71	Oct 6	71	Oct 6	15	A
ANNUAL SEVEN-DAY MINIMUM	75	Oct 5	75	Oct 5	23	Jan 2 1940
INSTANTANEOUS PEAK FLOW			3570	Jun 26	11900	Feb 20 1994
INSTANTANEOUS PEAK STAGE			8.04	Jun 26	14.19	Feb 20 1994
INSTANTANEOUS LOW FLOW			63 B	Nov 24, Dec. 28	14 C	Sep 19 1988
ANNUAL RUNOFF (CFSM)	.70		.75		.69
ANNUAL RUNOFF (INCHES)	9.51		10.14		9.38
10 PERCENT EXCEEDS	639		839		795
50 PERCENT EXCEEDS	200		273		210
90 PERCENT EXCEEDS	89		104		67

A - Dec. 30, 1939, Jan 7, 1940.
B - Result of freezeup.
C - Observed.