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Planned maintenance period

Start: Thursday, November 18th, at 09:00am CST
Duration: <6 hours
Impact: USGS Real-Time web pages for stations in MI, MN and WI. There should be no disruption in real-time data services for planned maintenance period.

If there are concerns please contact via these emails:

Michigan: gs-w-mi_NWISWeb_Maintainer@usgs.gov
Minnesota: gs-w-mn_NWISWeb_Maintainer@usgs.gov
Wisconsin: gs-w-wi_NWISWeb_Maintainer@usgs.gov

NOTE: During winter months, stage and discharge may be significantly affected by backwater from ice, resulting in incorrect discharge data. Consequently, discharge data may not be displayed during periods of ice effect. Click here for more information.

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LOCATION .--Lat 42°43'52", long 90°38'25", in SW 1/4 sec.17, T.3 N., R.2W., Grant County, Hydrologic Unit 07060003, on right bank just downstream from bridge on County Trunk Highway B, 0.8 mi upstream from Blakely Branch, 2.2 mi east of Rockville, 4.5 mi northeast of Potosi, and 15.2 mi upstream from mouth.

DRAINAGE AREA .--142 square miles.

PERIOD OF RECORD .--October 1934 to present. Monthly discharge for October and November 1934 published in WSP 1308.

REVISED RECORDS .--WSP 1438: 1935-36, 1937(M), 1939(M), 1941-43(M), 1946(M). WDR WI-76-1: Drainage area.

GAGE .--Water-stage recorder and crest-stage gage. Datum of gage is 642.29 ft above sea level NAVD88. Prior to Oct. 1, 1941, nonrecording gage at site 1.3 mi upstream at datum 12.55 ft higher. Oct. 1, 1941, to June 29, 1949, nonrecording gage at present site and datum.

REMARKS .--Gage-height telemeter at station.


Corps of Engineers Logo U.S. Army Corps of Engineers - Rock Island District

Additional Information:

USACE Site Data

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Boating safety tips
This station managed by the USGS Wisconsin Water Science Center - Middleton WI.

Available Parameters Available Period
1986-10-01  2021-11-30
2017-10-01  2021-11-30


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Summary of all available data for this site
Instantaneous-data availability statement

Discharge, cubic feet per second

Most recent instantaneous value: 72.5 11-30-2021   22:00 CST
Graph of  Discharge, cubic feet per second

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Gage height, feet, [Primary Stage]

Most recent instantaneous value: 3.75 11-30-2021   22:00 CST
Graph of  Gage height, feet, [Primary Stage]

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