{"site_no":"07018500","name":"Big River at Byrnesville, MO","slug":"big-river-at-byrnesville-mo","url":"https://streamflowdata.com/stations/big-river-at-byrnesville-mo","state":"MO","county":"Jefferson County","lat":38.3917222,"lng":-90.6378056,"drainage_area_sqmi":917,"datum_ft":433.7,"huc_code":"07140104","river":{"name":"Big River","slug":"big-river-mo"},"current":{"reading_time":"2026-05-29T23:45:00+00:00","discharge_cfs":363,"gage_height_ft":2.98},"flood_stage":{"action_stage_ft":13,"flood_stage_ft":16,"moderate_flood_ft":20,"major_flood_ft":28},"today_statistics":{"month":6,"day":11,"p10":181,"p25":242,"p50":395,"p75":910,"p95":6400},"recent_daily_values":[{"date":"2026-05-28","discharge_cfs":374,"gage_height_ft":null},{"date":"2026-05-27","discharge_cfs":383,"gage_height_ft":null},{"date":"2026-05-26","discharge_cfs":402,"gage_height_ft":null},{"date":"2026-05-25","discharge_cfs":431,"gage_height_ft":null},{"date":"2026-05-24","discharge_cfs":462,"gage_height_ft":null},{"date":"2026-05-23","discharge_cfs":498,"gage_height_ft":null},{"date":"2026-05-22","discharge_cfs":550,"gage_height_ft":null},{"date":"2026-05-21","discharge_cfs":663,"gage_height_ft":null},{"date":"2026-05-20","discharge_cfs":873,"gage_height_ft":null},{"date":"2026-05-19","discharge_cfs":2300,"gage_height_ft":null},{"date":"2026-05-18","discharge_cfs":1440,"gage_height_ft":null},{"date":"2026-05-17","discharge_cfs":456,"gage_height_ft":null},{"date":"2026-05-16","discharge_cfs":490,"gage_height_ft":null},{"date":"2026-05-15","discharge_cfs":534,"gage_height_ft":null},{"date":"2026-04-20","discharge_cfs":2370,"gage_height_ft":null},{"date":"2026-04-19","discharge_cfs":2500,"gage_height_ft":null},{"date":"2026-04-18","discharge_cfs":1570,"gage_height_ft":null},{"date":"2026-04-17","discharge_cfs":939,"gage_height_ft":null},{"date":"2026-04-16","discharge_cfs":854,"gage_height_ft":null},{"date":"2026-04-15","discharge_cfs":418,"gage_height_ft":null},{"date":"2026-04-14","discharge_cfs":431,"gage_height_ft":null},{"date":"2026-04-13","discharge_cfs":455,"gage_height_ft":null},{"date":"2026-04-12","discharge_cfs":481,"gage_height_ft":null},{"date":"2026-04-11","discharge_cfs":515,"gage_height_ft":null},{"date":"2026-04-10","discharge_cfs":563,"gage_height_ft":null},{"date":"2026-04-09","discharge_cfs":628,"gage_height_ft":null},{"date":"2026-04-08","discharge_cfs":726,"gage_height_ft":null},{"date":"2026-04-07","discharge_cfs":871,"gage_height_ft":null},{"date":"2026-04-06","discharge_cfs":995,"gage_height_ft":null},{"date":"2026-04-05","discharge_cfs":927,"gage_height_ft":null},{"date":"2026-04-04","discharge_cfs":602,"gage_height_ft":null},{"date":"2026-04-03","discharge_cfs":675,"gage_height_ft":null},{"date":"2026-04-02","discharge_cfs":700,"gage_height_ft":null},{"date":"2026-04-01","discharge_cfs":500,"gage_height_ft":null},{"date":"2026-03-31","discharge_cfs":439,"gage_height_ft":null},{"date":"2026-03-30","discharge_cfs":453,"gage_height_ft":null},{"date":"2026-03-29","discharge_cfs":476,"gage_height_ft":null},{"date":"2026-03-28","discharge_cfs":507,"gage_height_ft":null},{"date":"2026-03-27","discharge_cfs":541,"gage_height_ft":null},{"date":"2026-03-26","discharge_cfs":564,"gage_height_ft":null},{"date":"2026-03-25","discharge_cfs":601,"gage_height_ft":null},{"date":"2026-03-24","discharge_cfs":650,"gage_height_ft":null},{"date":"2026-03-23","discharge_cfs":712,"gage_height_ft":null},{"date":"2026-03-22","discharge_cfs":781,"gage_height_ft":null},{"date":"2026-03-21","discharge_cfs":853,"gage_height_ft":null},{"date":"2026-03-20","discharge_cfs":936,"gage_height_ft":null},{"date":"2026-03-19","discharge_cfs":1040,"gage_height_ft":null},{"date":"2026-03-18","discharge_cfs":1200,"gage_height_ft":null},{"date":"2026-03-17","discharge_cfs":1300,"gage_height_ft":null},{"date":"2026-03-16","discharge_cfs":1290,"gage_height_ft":null},{"date":"2026-03-15","discharge_cfs":1290,"gage_height_ft":null},{"date":"2026-03-14","discharge_cfs":1500,"gage_height_ft":null},{"date":"2026-03-13","discharge_cfs":1930,"gage_height_ft":null},{"date":"2026-03-12","discharge_cfs":2270,"gage_height_ft":null},{"date":"2026-03-11","discharge_cfs":2160,"gage_height_ft":null},{"date":"2026-03-10","discharge_cfs":3440,"gage_height_ft":null},{"date":"2026-03-09","discharge_cfs":14400,"gage_height_ft":null},{"date":"2026-03-08","discharge_cfs":12700,"gage_height_ft":null},{"date":"2026-03-07","discharge_cfs":19500,"gage_height_ft":null},{"date":"2026-03-06","discharge_cfs":14100,"gage_height_ft":null}],"sources":{"usgs_nwis":"https://waterdata.usgs.gov/nwis","noaa_nwps":"https://api.water.noaa.gov/nwps/v1"},"license":"USGS data is in the public domain. Attribution: USGS National Water Information System (NWIS)."}