{ "lid": "GTTI4", "usgsId": "", "reachId": "13624991", "name": "Mississippi River below Lock and Dam 10 - Guttenberg", "description": "", "rfc": { "abbreviation": "NCRFC", "name": "North Central River Forecast Center" }, "wfo": { "abbreviation": "ARX", "name": "La Crosse" }, "state": { "abbreviation": "IA", "name": "Iowa" }, "county": "Clayton", "timeZone": "CST6CDT", "latitude": 42.784, "longitude": -91.0948, "pedts": { "observed": "HTIRG", "forecast": "HTIFF" }, "status": { "observed": { "primary": 3.89, "primaryUnit": "ft", "secondary": 19.9, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-30T21:00:00Z" }, "forecast": { "primary": 3.9, "primaryUnit": "ft", "secondary": 20.1, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-31T00:00:00Z" } }, "flood": { "stageUnits": "ft", "flowUnits": "cfs", "categories": { "major": { "stage": 21, "flow": -9999 }, "moderate": { "stage": 18, "flow": -9999 }, "minor": { "stage": 15, "flow": -9999 }, "action": { "stage": 12, "flow": -9999 } }, "lro": { "minorCS": "< 0.05", "moderateCS": "< 0.05", "majorCS": "< 0.05", "producedTime": "2026-08-28T22:02:21Z", "interval": "SON" }, "crests": { "historic": [ { "occurredTime": "1965-04-24T00:00:00Z", "stage": 23.65, "flow": 318000, "preliminary": "R", "olddatum": false }, { "occurredTime": "2001-04-21T00:00:00Z", "stage": 21.68, "flow": 270500, "preliminary": "O", "olddatum": false }, { "occurredTime": "2023-04-28T16:00:00Z", "stage": 20.98, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-06-30T00:00:00Z", "stage": 20.15, "flow": 237800, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-27T20:00:00Z", "stage": 19.98, "flow": 243640, "preliminary": "O", "olddatum": false }, { "occurredTime": "1969-04-22T00:00:00Z", "stage": 19.84, "flow": 241250, "preliminary": "O", "olddatum": false }, { "occurredTime": "1952-04-24T00:00:00Z", "stage": 19.69, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-21T00:00:00Z", "stage": 19.63, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-18T19:00:00Z", "stage": 19.58, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-05T00:00:00Z", "stage": 19.41, "flow": 233360, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-15T00:00:00Z", "stage": 19.4, "flow": 231200, "preliminary": "O", "olddatum": false }, { "occurredTime": "2024-07-06T04:00:00Z", "stage": 18.98, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-10T00:00:00Z", "stage": 18.94, "flow": 218000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-03-22T00:00:00Z", "stage": 18.59, "flow": 218500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-10-05T00:00:00Z", "stage": 18.43, "flow": 209000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-04-10T00:00:00Z", "stage": 18.24, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1938-05-29T00:00:00Z", "stage": 18.1, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1954-05-11T00:00:00Z", "stage": 17.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-05-31T08:00:00Z", "stage": 17.59, "flow": 201014, "preliminary": "O", "olddatum": false }, { "occurredTime": "2010-10-02T15:00:00Z", "stage": 17.48, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-03-16T00:00:00Z", "stage": 17.16, "flow": 187700, "preliminary": "O", "olddatum": false }, { "occurredTime": "2014-07-04T00:00:00Z", "stage": 17, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1971-04-20T00:00:00Z", "stage": 16.6, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-04-28T00:00:00Z", "stage": 16.59, "flow": 182500, "preliminary": "O", "olddatum": false }, { "occurredTime": "2008-04-27T05:00:00Z", "stage": 16.21, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-06-10T00:00:00Z", "stage": 16.17, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2017-05-28T09:00:00Z", "stage": 16.14, "flow": 176306, "preliminary": "O", "olddatum": false }, { "occurredTime": "1943-07-07T00:00:00Z", "stage": 16, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-04-26T00:00:00Z", "stage": 16, "flow": 169000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-04-22T00:00:00Z", "stage": 15.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1998-04-09T00:00:00Z", "stage": 15.56, "flow": 165000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2004-06-19T05:00:00Z", "stage": 15.43, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-10-13T14:00:00Z", "stage": 15.26, "flow": 161310, "preliminary": "P", "olddatum": false }, { "occurredTime": "2016-09-29T11:00:00Z", "stage": 15.22, "flow": -9999, "preliminary": "O", "olddatum": false } ], "recent": [ { "occurredTime": "2024-07-06T04:00:00Z", "stage": 18.98, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2023-04-28T16:00:00Z", "stage": 20.98, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-10-13T14:00:00Z", "stage": 15.26, "flow": 161310, "preliminary": "P", "olddatum": false }, { "occurredTime": "2019-05-31T08:00:00Z", "stage": 17.59, "flow": 201014, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-27T20:00:00Z", "stage": 19.98, "flow": 243640, "preliminary": "O", "olddatum": false }, { "occurredTime": "2017-05-28T09:00:00Z", "stage": 16.14, "flow": 176306, "preliminary": "O", "olddatum": false }, { "occurredTime": "2016-09-29T11:00:00Z", "stage": 15.22, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "2014-07-04T00:00:00Z", "stage": 17, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-18T19:00:00Z", "stage": 19.58, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2010-10-02T15:00:00Z", "stage": 17.48, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "2008-04-27T05:00:00Z", "stage": 16.21, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "2004-06-19T05:00:00Z", "stage": 15.43, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "2001-04-21T00:00:00Z", "stage": 21.68, "flow": 270500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1998-04-09T00:00:00Z", "stage": 15.56, "flow": 165000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-15T00:00:00Z", "stage": 19.4, "flow": 231200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-04-28T00:00:00Z", "stage": 16.59, "flow": 182500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-06-30T00:00:00Z", "stage": 20.15, "flow": 237800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-04-22T00:00:00Z", "stage": 15.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-10-05T00:00:00Z", "stage": 18.43, "flow": 209000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-04-10T00:00:00Z", "stage": 18.24, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-03-16T00:00:00Z", "stage": 17.16, "flow": 187700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-04-26T00:00:00Z", "stage": 16, "flow": 169000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-05T00:00:00Z", "stage": 19.41, "flow": 233360, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-03-22T00:00:00Z", "stage": 18.59, "flow": 218500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1971-04-20T00:00:00Z", "stage": 16.6, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1969-04-22T00:00:00Z", "stage": 19.84, "flow": 241250, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-10T00:00:00Z", "stage": 18.94, "flow": 218000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1965-04-24T00:00:00Z", "stage": 23.65, "flow": 318000, "preliminary": "R", "olddatum": false }, { "occurredTime": "1954-05-11T00:00:00Z", "stage": 17.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1952-04-24T00:00:00Z", "stage": 19.69, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-21T00:00:00Z", "stage": 19.63, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1943-07-07T00:00:00Z", "stage": 16, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-06-10T00:00:00Z", "stage": 16.17, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1938-05-29T00:00:00Z", "stage": 18.1, "flow": 0, "preliminary": "O", "olddatum": false } ] }, "lowWaters": { "historic": [] }, "impacts": [ { "stage": 29.6, "statement": "The water begins to overtop the protective levee." }, { "stage": 24, "statement": "Water begins to flow over the lock walls and the protective earthen dikes." }, { "stage": 23.65, "statement": "Water levels reach the flood of record." }, { "stage": 21, "statement": "Flooding of some residential areas occurs. Lock and Dam 10 is closed to navigation." }, { "stage": 20, "statement": "Some basements may begin to experience flooding due to seepage, with most problems occurring on the approaches to town." }, { "stage": 19, "statement": "The water is over Island Road." }, { "stage": 18, "statement": "Sewer and street flooding begins to occur in Glen Haven, Wisconsin." }, { "stage": 15.5, "statement": "The water is over Marina Road." }, { "stage": 15, "statement": "Minor lowland flooding begins to occur." } ] }, "images": { "probability": { "weekint": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/GTTI4.SSTG.prob.weekint.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/GTTI4.QINE.prob.weekint.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/GTTI4.volume.prob.weekint.gif" }, "entperiod": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/GTTI4.SSTG.exceed.90day.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/GTTI4.QINE.exceed.90day.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/GTTI4.volume.exceed.90day.gif" }, "shortrange": "https://water.noaa.gov/resources/probabilistic/short_term/GTTI4.shortrange.hefs.png" }, "hydrograph": { "default": "https://water.noaa.gov/resources/hydrographs/gtti4_hg.png", "floodcat": "https://water.noaa.gov/resources/hydrographs/gtti4_record.png" }, "photos": [ { "id": "10226607170497024494", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 42.784, -91.0948 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/gtti4/10226607170497024494.jpeg", "caption": "Downstream view at Guttenberg, September 28th, 2011, Stage = 11.17 ft" } }, { "id": "10261741549166531054", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 42.784, -91.0948 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/gtti4/10261741549166531054.jpeg", "caption": "Upstream view at Guttenberg, September 28th, 2011, Stage = 11.17 ft" } } ] }, "dataAttribution": [ { "abbrev": "US Army Corps of Engineers", "text": "USACE - Building Strong", "title": "Observations courtesy of U.S. Army Corps of Engineers", "url": "https://water.usace.army.mil/office/mvp/location/LockDam_10" } ], "impactsLowWaters": [], "normalThreshold": null, "hydronotes": [ { "statement": "River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.", "effective": "0401", "expiration": "0930" }, { "statement": "River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.", "effective": "1001", "expiration": "0331" } ], "datums": { "vertical": { "value": [] }, "horizontal": { "value": [] }, "notes": { "value": [] } }, "inundation": { "enabled": false, "url": "", "zeroDatum": null, "downloads": null, "siteSpecificInfo": "", "dataAttribution": [] }, "upstreamLid": "CLAI4", "downstreamLid": "DLDI4", "inService": { "enabled": true, "message": "" }, "lowThreshold": null, "forecastReliability": "Forecasts are issued routinely during the navigation season, and as needed at other times of the year.", "TruncateObs": "-1", "TruncateFcst": "7", "ObservedFloodCategory": "no_flooding", "ForecastFloodCategory": "no_flooding" }