05430500 DATA: Discharge Tables, 2002

Station list Available data
ROCK RIVER BASIN

05430500 ROCK RIVER AT AFTON, WI


LOCATION.-- Lat 42°36'33", long 89°04'14" (NAD of 1927), in NE 1/4 sec.28, T.2 N., R.12 E., Rock County, Hydrologic Unit 07090001, on right bank in Afton, 0.3 mi downstream from highway bridge and 1.1 mi upstream from Bass Creek.

DRAINAGE AREA.-- 3,340 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: January 1914 to current year. Monthly discharge for January 1914 published in WSP 1308.

REVISED RECORDS.-- WSP 1238: 1916(M), 1919(M), 1933, 1937-38, 1943. WDR WI-79-1: Drainage area.

GAGE.-- Water-stage recorder and satellite telemeter. Datum of gage is 742.36 ft above NGVD of 1929. Prior to Aug. 23, 1932, a nonrecording gage 20 ft upstream, and Aug. 23, 1932, to Sept. 30, 1933, water-stage recorder, at same site at datum 1 ft higher.

REMARKS.-- Diurnal fluctuation caused by powerplants above station.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 13,000 ft³/s, March 23, 1929, gage height, 11.81 ft, present datum; maximum gage height, 13.05 ft, February 5, 1916, present datum, backwater from ice; minimum daily discharge, 42 ft³/s, August 25 and 26, 1934.

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are fair, and periods of discharge below 800 ft³/s, which are poor.

DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	3000	3330	2440	e2100	e1700	e3000	3160	3580	2120	1930	764	725
2	2910	3390	2450	e2000	e1700	e2900	3240	3540	2020	1640	766	747
3	2720	3350	2440	e2000	e1700	e2800	3120	3420	2140	1580	792	678
4	2640	3320	2450	e1900	e1700	e2800	3040	3430	2700	1310	806	813
5	2540	3230	2390	e1900	e1700	e2800	2960	3350	2870	1240	832	821

6	2420	3090	2290	e1800	e1700	e2800	2870	3320	3050	1190	884	816
7	2310	2900	2440	e1700	1720	e2800	2790	3340	3090	1150	793	784
8	2220	2810	2470	e1700	1680	e2900	3080	3360	3210	1060	742	769
9	2050	2750	2410	e1700	1710	3310	3570	3210	3360	754	647	772
10	2110	2640	2320	1630	1830	2870	3640	3060	3400	1070	603	800

11	2100	2600	2350	1520	1740	3500	3720	3280	3480	969	662	812
12	2130	2500	2310	1650	1740	3780	4100	3380	3610	914	741	779
13	2140	2440	2380	1520	1740	4020	4250	3350	3690	681	878	715
14	2080	2430	2360	1650	1830	4220	4240	3200	3700	720	916	694
15	1980	2430	2350	1670	1940	4140	4200	3110	3690	769	1210	748

16	2140	2600	2380	1700	1960	4190	4150	3050	3650	794	1110	749
17	2110	2620	2420	1670	1950	4140	4130	3220	3580	707	633	676
18	2120	2530	2420	e1600	1940	4270	4110	3180	3570	731	622	682
19	2160	2460	2440	e1600	2040	4100	4120	3110	3550	849	786	802
20	2090	2400	2420	e1600	2230	3930	4160	3090	3400	752	754	989

21	2140	2280	2600	e1600	2330	3930	4130	2950	3360	737	783	837
22	2260	2340	2600	e1600	2430	3740	3960	2770	3270	809	1040	854
23	2610	2300	2500	e1600	2560	3660	3830	2620	3070	888	1430	814
24	3180	2470	2410	e1600	2740	3750	3780	2580	2910	937	1380	805
25	2660	2400	2310	1620	2940	3900	3600	2640	2740	923	1320	884

26	2790	2420	e2300	1630	3090	3630	3650	2440	2630	833	1200	879
27	3250	2500	e2200	1630	e3100	3440	3740	2380	2450	784	930	907
28	3300	2460	e2200	1650	e3000	3350	3770	2450	2380	715	969	889
29	3380	2520	e2100	1650	---	3340	3580	2360	2260	862	731	1040
30	3550	2540	e2100	1640	---	3230	3430	2270	2120	821	784	1040

31	3470	---	e2100	e1700	---	3150	---	2200	---	794	757	---

TOTAL	78560	80050	73350	52530	58440	108390	110120	93240	91070	29913	27265	24320
MEAN	2534	2668	2366	1695	2087	3496	3671	3008	3036	964.9	879.5	810.7
MAX	3550	3390	2600	2100	3100	4270	4250	3580	3700	1930	1430	1040
MIN	1980	2280	2100	1520	1680	2800	2790	2200	2020	681	603	676
CFSM	0.76	0.80	0.71	0.51	0.62	1.05	1.10	0.90	0.91	0.29	0.26	0.24
IN.	0.87	0.89	0.82	0.59	0.65	1.21	1.23	1.04	1.01	0.33	0.30	0.27

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1914 - 2002, BY WATER YEAR (WY)
MEAN	1399	1582	1478	1315	1570	3341	4107	2602	1854	1439	1142	1201
MAX	8219	5884	4395	3558	5647	8958	10010	7911	7452	5443	5376	5088
(WY)	1987	1986	1986	1960	1938	1918	1979	1973	2000	1993	1924	1938
MIN	254	397	383	275	327	610	1002	389	314	247	183	212
(WY)	1940	1964	1940	1959	1959	1940	1931	1958	1934	1934	1934	1939

SUMMARY STATISTICS	FOR 2001 CALENDAR YEAR		FOR 2002 WATER YEAR		WATER YEARS 1914 - 2002
ANNUAL TOTAL	1003818		827248
ANNUAL MEAN	2750		2266		1923
HIGHEST ANNUAL MEAN					3925	1993
LOWEST ANNUAL MEAN					557	1964
HIGHEST DAILY MEAN	5370	Apr 18	4270	Mar 18	13000	Mar 23 1929
LOWEST DAILY MEAN	555	Jul 31	603	Aug 10	42	Aug 25 1934
ANNUAL SEVEN-DAY MINIMUM	975	Aug 14	720	Sep 12	115	Aug 24 1934
MAXIMUM PEAK FLOW			4440	Mar 18	13000	Mar 23 1929
MAXIMUM PEAK STAGE			7.19	Mar 18	13.05	Feb 5 1916
ANNUAL RUNOFF (CFSM)	0.82		0.68		0.58
ANNUAL RUNOFF (INCHES)	11.18		9.21		7.82
10 PERCENT EXCEEDS	4330		3630		4060
50 PERCENT EXCEEDS	2600		2360		1360
90 PERCENT EXCEEDS	1400		784		481