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23900, "preliminary": "O", "olddatum": false }, { "occurredTime": "1980-12-12T00:00:00Z", "stage": 24.46, "flow": 11300, "preliminary": "O", "olddatum": false }, { "occurredTime": "1980-03-30T07:30:00Z", "stage": 35.96, "flow": 64200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1979-04-24T11:15:00Z", "stage": 36.7, "flow": 68600, "preliminary": "O", "olddatum": false }, { "occurredTime": "1978-01-27T06:30:00Z", "stage": 31.18, "flow": 31300, "preliminary": "O", "olddatum": false }, { "occurredTime": "1977-12-02T00:00:00Z", "stage": 31.18, "flow": 31300, "preliminary": "O", "olddatum": false }, { "occurredTime": "1977-04-23T14:45:00Z", "stage": 41.08, "flow": 110000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1976-03-27T00:00:00Z", "stage": 26.85, "flow": 16100, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-10T00:00:00Z", "stage": 30.46, "flow": 29900, "preliminary": "O", "olddatum": false }, { "occurredTime": 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{ "occurredTime": "1964-10-07T00:00:00Z", "stage": 34.02, "flow": 49900, "preliminary": "O", "olddatum": false }, { "occurredTime": "1964-03-04T00:00:00Z", "stage": 32.41, "flow": 40500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1963-01-22T00:00:00Z", "stage": 20.91, "flow": 5150, "preliminary": "O", "olddatum": false }, { "occurredTime": "1962-04-29T00:00:00Z", "stage": 34.55, "flow": 49700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1961-03-20T00:00:00Z", "stage": 34.47, "flow": 49100, "preliminary": "O", "olddatum": false }, { "occurredTime": "1959-12-19T00:00:00Z", "stage": 28.52, "flow": 18800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1957-11-17T00:00:00Z", "stage": 26.42, "flow": 14700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1957-07-01T00:00:00Z", "stage": 25.78, "flow": 12300, "preliminary": "O", "olddatum": false }, { "occurredTime": "1956-03-14T00:00:00Z", "stage": 30.07, "flow": 23400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1955-04-15T00:00:00Z", "stage": 35.95, "flow": 54300, "preliminary": "O", "olddatum": false }, { "occurredTime": "1953-12-11T00:00:00Z", "stage": 26.23, "flow": 15200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1953-05-20T00:00:00Z", "stage": 36.33, "flow": 67000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1952-04-06T00:00:00Z", "stage": 22.93, "flow": 8230, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-01T00:00:00Z", "stage": 32.06, "flow": 36900, "preliminary": "O", "olddatum": false }, { "occurredTime": "1950-01-09T00:00:00Z", "stage": 32.05, "flow": 40800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1949-03-24T00:00:00Z", "stage": 29.74, "flow": 28800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1948-03-05T00:00:00Z", "stage": 33.46, "flow": 45100, "preliminary": "O", "olddatum": false }, { "occurredTime": "1944-03-23T00:00:00Z", "stage": 25.04, "flow": 11000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1943-03-23T00:00:00Z", "stage": 32.5, "flow": 40200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-09-19T00:00:00Z", "stage": 25.64, "flow": 12200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1940-12-17T00:00:00Z", "stage": 28.19, "flow": 20800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1940-07-07T00:00:00Z", "stage": 26.96, "flow": 16000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1939-06-06T00:00:00Z", "stage": 25.83, "flow": 12100, "preliminary": "O", "olddatum": false }, { "occurredTime": "1921-03-15T00:00:00Z", "stage": 39.27, "flow": 93000, "preliminary": "O", "olddatum": false } ] }, "lowWaters": { "historic": [] }, "impacts": [ { "stage": 46.2, "statement": "Flood of Record on August 14, 2016. At this level, widespread flooding will occur with most roads, including Interstate 12 and LA Hwy 190, inundated. Approximately 90 percent of the homes will be flooded, along with businesses and other buildings." }, { "stage": 41.5, "statement": "Widespread flooding of the area between Range Avenue in Denham Springs, west to Airline Highway in Baton Rouge, is expected. Significant flood reached this level in April 1983." }, { "stage": 39, "statement": "Widespread major flooding can be expected in subdivisions along Tiger Bend Road, Antioch Road, Eliot Road, and in Woodcrest and Stevendale Estates in Old Jefferson." }, { "stage": 38.2, "statement": "Tropical Storm Allison - June 2001" }, { "stage": 35, "statement": "There will be moderate flooding of areas around Clay Cut Bayou, Jones Creek, and Honey Cut Bayou. In Denham Springs the area west of Florida Avenue will be subject to flooding." }, { "stage": 30, "statement": "Flooding will begin in the westernmost parts of Denham Springs. River Road at the foot of Benton Lane will flood." }, { "stage": 29, "statement": "Flooding will begin in the westernmost parts of Denham Springs." } ] }, "images": { "probability": { "weekint": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/DENL1.SSTG.prob.weekint.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/DENL1.QINE.prob.weekint.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/DENL1.volume.prob.weekint.gif" }, "entperiod": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/DENL1.SSTG.exceed.90day.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/DENL1.QINE.exceed.90day.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/DENL1.volume.exceed.90day.gif" }, "shortrange": "https://water.noaa.gov/resources/probabilistic/short_term/DENL1.shortrange.hefs.png" }, "hydrograph": { "default": "https://water.noaa.gov/resources/hydrographs/denl1_hg.png", "floodcat": "https://water.noaa.gov/resources/hydrographs/denl1_record.png" }, "photos": [] }, "dataAttribution": [ { "abbrev": "US Geological Survey", "text": "USGS--Water Resources of the United States", "title": "US Geological Survey", "url": "https://waterdata.usgs.gov/nwis" }, { "abbrev": "USGS", "text": "07378500", "title": "Observations courtesy of U.S. Geological Survey", "url": "https://waterdata.usgs.gov/nwis/inventory/?site_no=07378500" } ], "impactsLowWaters": [], "normalThreshold": { "value": 0, "units": "ft" }, "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": "0101", "expiration": "1231" } ], "datums": { "vertical": { "value": [ { "label": "North American Vertical Datum of 1988", "abbrev": "NAVD88", "description": "A fixed reference for elevations determined by geodetic leveling. The datum was derived from a general adjustment of the first-order terrestrial leveling nets of the United States, Canada, and Mexico. In the adjustment, only the height of the primary tidal bench mark, referenced to the International Great Lakes Datum of 1985 (IGLD 85) local mean sea level height value, at Father Point, Rimouski, Quebec, Canada was held fixed, thus providing minimum constraint. NAVD 88 and IGLD 85 are identical. However, NAVD 88 bench mark values are given in Helmert orthometric height units while IGLD 85 values are in dynamic heights. See International Great Lakes Datum of 1985, National Geodetic Vertical Datum of 1929, and geopotential difference. NAVD 88 should not be used as Mean Sea Level.", "value": -1.35 } ] }, "horizontal": { "value": [] }, "notes": { "value": [] } }, "inundation": { "enabled": false, "url": "", "zeroDatum": null, "downloads": null, "siteSpecificInfo": "", "dataAttribution": [] }, "upstreamLid": "MAGL1", "downstreamLid": "BYML1", "inService": { "enabled": true, "message": "" }, "lowThreshold": null, "forecastReliability": "Forecasts are issued routinely year-round.", "TruncateObs": "-1", "TruncateFcst": "5", "ObservedFloodCategory": "no_flooding", "ForecastFloodCategory": "no_flooding" }