{ "lid": "DSHP1", "usgsId": "03086000", "reachId": "3821223", "name": "Ohio River at Dashields Lock and Dam", "description": "", "rfc": { "abbreviation": "OHRFC", "name": "Ohio River Forecast Center" }, "wfo": { "abbreviation": "PBZ", "name": "Moon Township" }, "state": { "abbreviation": "PA", "name": "Pennsylvania" }, "county": "Allegheny", "timeZone": "EST5EDT", "latitude": 40.549166666667, "longitude": -80.205833333333, "pedts": { "observed": "HPIRG", "forecast": "HPIFF" }, "status": { "observed": { "primary": 14.34, "primaryUnit": "ft", "secondary": 14.5, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-31T04:15:00Z" }, "forecast": { "primary": 14.4, "primaryUnit": "ft", "secondary": 15.4, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-31T06:00:00Z" } }, "flood": { "stageUnits": "ft", "flowUnits": "cfs", "categories": { "major": { "stage": 32, "flow": 347782 }, "moderate": { "stage": 29, "flow": 297630 }, "minor": { "stage": 25, "flow": 236975 }, "action": { "stage": 19.4, "flow": 132980 } }, "lro": { "minorCS": "0.06", "moderateCS": "< 0.05", "majorCS": "< 0.05", "producedTime": "2026-08-29T03:30:05Z", "interval": "SON" }, "crests": { "historic": [ { "occurredTime": "1936-03-18T00:00:00Z", "stage": 42.8, "flow": 0, "preliminary": "R", "olddatum": false }, { "occurredTime": "1942-12-31T00:00:00Z", "stage": 35.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-01-20T00:00:00Z", "stage": 33.2, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1972-06-24T00:00:00Z", "stage": 33, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-03-07T00:00:00Z", "stage": 32.1, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1954-10-16T00:00:00Z", "stage": 31.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1964-03-11T00:00:00Z", "stage": 30, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2004-09-19T00:00:00Z", "stage": 29.9, "flow": 311500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1959-01-22T00:00:00Z", "stage": 28.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1959-12-04T00:00:00Z", "stage": 27.5, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2005-01-07T00:45:00Z", "stage": 27.18, "flow": 269000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1966-02-14T00:00:00Z", "stage": 26.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2024-04-04T12:15:00Z", "stage": 26.82, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1960-04-01T00:00:00Z", "stage": 26.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1990-12-31T00:00:00Z", "stage": 26.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2018-02-17T12:30:00Z", "stage": 26.03, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2018-09-11T03:30:00Z", "stage": 25.98, "flow": 251480, "preliminary": "O", "olddatum": false }, { "occurredTime": "1984-11-06T00:00:00Z", "stage": 24.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1990-12-19T00:00:00Z", "stage": 24.2, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2007-03-16T10:45:00Z", "stage": 22.76, "flow": 202100, "preliminary": "O", "olddatum": false }, { "occurredTime": "2007-03-24T13:45:00Z", "stage": 20.17, "flow": 152030, "preliminary": "O", "olddatum": false }, { "occurredTime": "2003-02-24T13:15:00Z", "stage": 19.38, "flow": 0, "preliminary": "O", "olddatum": false } ], "recent": [ { "occurredTime": "2024-04-04T12:15:00Z", "stage": 26.82, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2018-09-11T03:30:00Z", "stage": 25.98, "flow": 251480, "preliminary": "O", "olddatum": false }, { "occurredTime": "2018-02-17T12:30:00Z", "stage": 26.03, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2007-03-24T13:45:00Z", "stage": 20.17, "flow": 152030, "preliminary": "O", "olddatum": false }, { "occurredTime": "2007-03-16T10:45:00Z", "stage": 22.76, "flow": 202100, "preliminary": "O", "olddatum": false }, { "occurredTime": "2005-01-07T00:45:00Z", "stage": 27.18, "flow": 269000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2004-09-19T00:00:00Z", "stage": 29.9, "flow": 311500, "preliminary": "O", "olddatum": false }, { "occurredTime": "2003-02-24T13:15:00Z", "stage": 19.38, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-01-20T00:00:00Z", "stage": 33.2, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1990-12-31T00:00:00Z", "stage": 26.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1990-12-19T00:00:00Z", "stage": 24.2, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1984-11-06T00:00:00Z", "stage": 24.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-03-07T00:00:00Z", "stage": 32.1, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1972-06-24T00:00:00Z", "stage": 33, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1966-02-14T00:00:00Z", "stage": 26.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1964-03-11T00:00:00Z", "stage": 30, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1960-04-01T00:00:00Z", "stage": 26.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1959-12-04T00:00:00Z", "stage": 27.5, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1959-01-22T00:00:00Z", "stage": 28.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1954-10-16T00:00:00Z", "stage": 31.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-12-31T00:00:00Z", "stage": 35.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1936-03-18T00:00:00Z", "stage": 42.8, "flow": 0, "preliminary": "R", "olddatum": false } ] }, "lowWaters": { "historic": [] }, "impacts": [ { "stage": 48, "statement": "The railroad tracks flood in the vicinity of Chadwick Street in Sewickley." }, { "stage": 45, "statement": "Water flowing through the railroad underpass reaches the intersection of Chestnut and Chadwick Streets in Sewickley." }, { "stage": 37, "statement": "State Route 51 at Stoops Ferry Road at Narrows Run floods, and the parking lot behind the Sewickley Station on Chestnut Street in Sewickley floods. Water reaches the parking lot of the Paradise Island Bowl on Neville Island." }, { "stage": 34, "statement": "Flooding reaches front yards of homes along Chestnut Avenue between White and Ferry Streets in Sewickley." }, { "stage": 33, "statement": "Water reaches the parking lot of the United States Coast Guard Station." }, { "stage": 32, "statement": "Front River Road on Neville Island begins to flood." }, { "stage": 31, "statement": "Flooding begins in the vicinity of I-79 intersection and Grand Avenue on Neville Island from water backing up into drains." }, { "stage": 30, "statement": "Water is in basements of low-lying houses along front River Road on Neville Island." }, { "stage": 28, "statement": "Backyards of low lying houses along Front River Road on Nevelle Island are flooded. Chestnut Avenue is flooded near intersection with Ferry Street" }, { "stage": 27, "statement": "The access roads to Dashileds Locks and Dam and the United States Coast Guard Station begin to flood. The beach area at Paradise Island Bowl on Neville Island begins to flood." }, { "stage": 26.4, "statement": "Lock walls are overtopped." }, { "stage": 23, "statement": "Navigation suspended at Dashields Locks and Dam, lock out of service." } ] }, "images": { "probability": { "weekint": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/DSHP1.SSTG.prob.weekint.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/DSHP1.QINE.prob.weekint.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/DSHP1.volume.prob.weekint.gif" }, "entperiod": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/DSHP1.SSTG.exceed.90day.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/DSHP1.QINE.exceed.90day.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/DSHP1.volume.exceed.90day.gif" }, "shortrange": "https://water.noaa.gov/resources/probabilistic/short_term/DSHP1.shortrange.hefs.png" }, "hydrograph": { "default": "https://water.noaa.gov/resources/hydrographs/dshp1_hg.png", "floodcat": "https://water.noaa.gov/resources/hydrographs/dshp1_record.png" }, "photos": [ { "id": "16566938420856885742", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 40.549166666667, -80.205833333333 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/dshp1/16566938420856885742.jpeg", "caption": "Dashields DCP and River Gage Data Logger" } }, { "id": "16590097820819788270", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 40.549166666667, -80.205833333333 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/dshp1/16590097820819788270.jpeg", "caption": "View Downstream from Dashields Dam" } }, { "id": "16596449695198482926", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 40.549166666667, -80.205833333333 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/dshp1/16596449695198482926.jpeg", "caption": "View of Dashields Dam from Lock Wall" } }, { "id": "16601709123170603502", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 40.549166666667, -80.205833333333 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/dshp1/16601709123170603502.jpeg", "caption": "Top of Wall on U.S. Coast Guard Dock is 33 Feet" } }, { "id": "16607348101697638894", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 40.549166666667, -80.205833333333 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/dshp1/16607348101697638894.jpeg", "caption": "Dashields Dam Upper Pool lower half of Staff Gage" } }, { "id": "16612793922660471278", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 40.549166666667, -80.205833333333 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/dshp1/16612793922660471278.jpeg", "caption": "Dashields Dam Upper Pool Upper half staff Gage" } } ] }, "dataAttribution": [ { "abbrev": "USGS", "text": "03086000", "title": "Observations courtesy of U.S. Geological Survey", "url": "https://waterdata.usgs.gov/nwis/inventory/?site_no=03086000" }, { "abbrev": "COE", "text": "Website", "title": "Observations courtesy of U.S. Army Corps of Engineers", "url": "https://www.lrp.usace.army.mil/Missions/Navigation/Locks-and-Dams/Dashields-Locks-Dam/" } ], "impactsLowWaters": [], "normalThreshold": { "value": 12, "units": "ft" }, "hydronotes": [ { "statement": "The above river forecast includes future rainfall/snowmelt. Forecast stages may be different if the actual rainfall/snowmelt is different than the forecast rainfall/snowmelt.", "effective": "0101", "expiration": "1231" }, { "statement": "Stage may be affected by ice.", "effective": "0101", "expiration": "0331" } ], "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": 679.57 } ] }, "horizontal": { "value": [] }, "notes": { "value": [] } }, "inundation": { "enabled": false, "url": "", "zeroDatum": null, "downloads": null, "siteSpecificInfo": "", "dataAttribution": [] }, "upstreamLid": "EMSP1", "downstreamLid": "MGYP1", "inService": { "enabled": true, "message": "" }, "lowThreshold": null, "forecastReliability": "Forecasts are issued routinely year-round.", "TruncateObs": "-1", "TruncateFcst": "-1", "ObservedFloodCategory": "no_flooding", "ForecastFloodCategory": "no_flooding" }