05430500 DATA: Discharge Tables, 2004

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 and 24, 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, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	517	1100	2140	2260	e840	1910	4460	2860	9860	7910	2930	1750
2	599	1290	2100	2150	e840	2320	4420	2740	9820	7660	2830	1730
3	527	1540	2250	1860	e700	2400	4360	2650	9880	7530	2760	1690
4	467	2050	2260	1810	e650	2540	4330	2450	9910	7710	2950	1580
5	528	2230	2240	1670	e800	3140	4190	2360	9860	7680	2960	1520

6	505	2120	2270	1470	e790	3330	4060	2270	9790	7200	2870	1440
7	595	2090	2160	e1400	e780	3360	4080	2260	9630	7060	2800	1440
8	549	2410	2030	e1400	e750	3640	3980	1980	9380	6760	2660	1440
9	545	2320	2040	e1300	e650	4010	3890	1940	9310	6590	2600	1010
10	593	2150	2450	e1300	e660	4160	3800	2020	9300	6440	2510	1070

11	597	2090	2430	e1300	e960	4190	3710	2310	9410	6190	2620	1080
12	556	2040	2170	e1300	e1100	4240	3630	2570	9460	5960	2580	1020
13	597	1930	2170	e1300	e1000	4320	3510	2620	9340	5780	2520	1130
14	758	2260	2210	e1300	e900	4230	3400	2800	9400	5580	2200	1330
15	794	2140	2270	e1300	e900	4270	3290	2930	9470	5430	1650	1220

16	844	2110	2630	e1300	e900	4380	3140	2980	9470	5280	1680	1200
17	934	2000	2610	e1300	e900	4340	3200	3010	9730	5260	1620	1300
18	934	2130	2590	e1300	e880	4270	3050	3270	9700	5100	1750	1250
19	896	2310	2540	e1200	e890	4100	2660	3480	9550	4860	1670	1220
20	949	2100	2470	e1100	e910	4210	2910	3510	9420	4670	1570	1160

21	761	2330	2430	e1100	e980	4190	3030	3760	9350	4560	1370	914
22	899	2290	2260	e1100	e1100	4090	3010	5310	9360	4390	1350	868
23	837	2130	1960	e1100	1280	3960	3070	6340	9140	4410	1320	856
24	930	1870	1980	e1100	1490	3950	3080	7010	9060	4170	1140	758
25	972	1940	1950	e1100	1420	3930	3100	7080	8970	4000	1160	775

26	825	2050	1970	e1000	1610	4120	2970	7480	8810	3820	1330	1010
27	789	2310	1960	e900	1610	4300	2950	7930	8660	3600	1430	1000
28	1310	2270	1980	e790	1700	4240	2850	8320	8590	3430	1620	1050
29	1270	2200	2040	e800	1720	4210	2650	8550	8320	3280	1610	1040
30	1290	2180	2280	e830	---	4350	2790	8910	8090	3170	1540	957

31	1150	---	2290	e830	---	4500	---	9500	---	3080	1770	---

TOTAL	24317	61980	69130	39970	29710	119200	103570	133200	280040	168560	63370	35808
MEAN	784	2066	2230	1289	1024	3845	3452	4297	9335	5437	2044	1194
MAX	1310	2410	2630	2260	1720	4500	4460	9500	9910	7910	2960	1750
MIN	467	1100	1950	790	650	1910	2650	1940	8090	3080	1140	758
CFSM	0.23	0.62	0.67	0.39	0.31	1.15	1.03	1.29	2.79	1.63	0.61	0.36
IN.	0.27	0.69	0.77	0.45	0.33	1.33	1.15	1.48	3.12	1.88	0.71	0.40

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1914 - 2004, BY WATER YEAR (WY)
MEAN	1393	1585	1481	1311	1554	3321	4069	2624	1930	1478	1145	1194
MAX	8219	5884	4395	3558	5647	8958	10010	7911	9335	5443	5376	5088
(WY)	1987	1986	1986	1960	1938	1918	1979	1973	2004	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 2003 CALENDAR YEAR		FOR 2004 WATER YEAR		WATER YEARS 1914 - 2004
ANNUAL TOTAL	466271		1128855
ANNUAL MEAN	1277		3084		1927
HIGHEST ANNUAL MEAN					3925	1993
LOWEST ANNUAL MEAN					557	1964
HIGHEST DAILY MEAN	3630	May 15	9910	Jun 4	13000	Mar 23 1929
LOWEST DAILY MEAN	335	Aug 27	467	Oct 4	42	Aug 25 1934
ANNUAL SEVEN-DAY MINIMUM	391	Sep 1	531	Oct 3	115	Aug 24 1934
MAXIMUM PEAK FLOW			9930	Jun 1	13000 A	Mar 23 1929
MAXIMUM PEAK STAGE			10.96	Jun 1	13.05 B	Feb 5 1916
ANNUAL RUNOFF (CFSM)	0.382		0.923		0.577
ANNUAL RUNOFF (INCHES)	5.19		12.57		7.84
10 PERCENT EXCEEDS	2410		7770		4070
50 PERCENT EXCEEDS	960		2260		1360
90 PERCENT EXCEEDS	528		852		486

	A - Gage height, 11.81 ft, present datum.
	B - Present datum, backwater from ice.