{"site_no":"08158827","name":"Onion Ck at Twin Creeks Road near Manchaca, TX","slug":"onion-ck-at-twin-creeks-road-near-manchaca-tx","url":"https://streamflowdata.com/stations/onion-ck-at-twin-creeks-road-near-manchaca-tx","state":"TX","county":"Travis County","lat":30.1263235,"lng":-97.8211161,"drainage_area_sqmi":181,"datum_ft":584.16,"huc_code":"12090205","river":{"name":"Onion Creek","slug":"onion-creek-tx"},"current":{"reading_time":"2026-05-30T00:00:00+00:00","discharge_cfs":4.41,"gage_height_ft":3.97},"flood_stage":null,"today_statistics":{"month":6,"day":11,"p10":0,"p25":0.4,"p50":1.5,"p75":15,"p95":227},"recent_daily_values":[{"date":"2026-05-28","discharge_cfs":11.7,"gage_height_ft":4.42},{"date":"2026-05-27","discharge_cfs":39.4,"gage_height_ft":5.07},{"date":"2026-05-26","discharge_cfs":3.25,"gage_height_ft":3.86},{"date":"2026-05-25","discharge_cfs":3.75,"gage_height_ft":3.91},{"date":"2026-05-24","discharge_cfs":4.39,"gage_height_ft":3.97},{"date":"2026-05-23","discharge_cfs":7.27,"gage_height_ft":4.19},{"date":"2026-05-22","discharge_cfs":20.6,"gage_height_ft":4.72},{"date":"2026-05-21","discharge_cfs":8.29,"gage_height_ft":4.25},{"date":"2026-05-20","discharge_cfs":9.56,"gage_height_ft":4.28},{"date":"2026-05-19","discharge_cfs":1.05,"gage_height_ft":3.61},{"date":"2026-05-18","discharge_cfs":1.32,"gage_height_ft":3.64},{"date":"2026-05-17","discharge_cfs":1.62,"gage_height_ft":3.68},{"date":"2026-05-16","discharge_cfs":1.68,"gage_height_ft":3.68},{"date":"2026-05-15","discharge_cfs":2.02,"gage_height_ft":3.72},{"date":"2026-04-20","discharge_cfs":5.08,"gage_height_ft":3.88},{"date":"2026-04-19","discharge_cfs":0.92,"gage_height_ft":3.55},{"date":"2026-04-18","discharge_cfs":0.65,"gage_height_ft":3.51},{"date":"2026-04-17","discharge_cfs":0.73,"gage_height_ft":3.53},{"date":"2026-04-16","discharge_cfs":0.96,"gage_height_ft":3.56},{"date":"2026-04-15","discharge_cfs":1.24,"gage_height_ft":3.59},{"date":"2026-04-14","discharge_cfs":1.93,"gage_height_ft":3.66},{"date":"2026-04-13","discharge_cfs":2.28,"gage_height_ft":3.7},{"date":"2026-04-12","discharge_cfs":2.98,"gage_height_ft":3.78},{"date":"2026-04-11","discharge_cfs":5.01,"gage_height_ft":3.97},{"date":"2026-04-10","discharge_cfs":1.39,"gage_height_ft":3.61},{"date":"2026-04-09","discharge_cfs":0.99,"gage_height_ft":3.57},{"date":"2026-04-08","discharge_cfs":1.2,"gage_height_ft":3.59},{"date":"2026-04-07","discharge_cfs":1.66,"gage_height_ft":3.64},{"date":"2026-04-06","discharge_cfs":2.5,"gage_height_ft":3.74},{"date":"2026-04-05","discharge_cfs":4.61,"gage_height_ft":3.95},{"date":"2026-04-04","discharge_cfs":4.59,"gage_height_ft":3.95},{"date":"2026-04-03","discharge_cfs":8.09,"gage_height_ft":4.21},{"date":"2026-04-02","discharge_cfs":12.1,"gage_height_ft":4.25},{"date":"2026-04-01","discharge_cfs":0.58,"gage_height_ft":3.52},{"date":"2026-03-31","discharge_cfs":0.58,"gage_height_ft":3.53},{"date":"2026-03-30","discharge_cfs":0.57,"gage_height_ft":3.53},{"date":"2026-03-29","discharge_cfs":0.62,"gage_height_ft":3.54},{"date":"2026-03-28","discharge_cfs":0.73,"gage_height_ft":3.55},{"date":"2026-03-27","discharge_cfs":0.87,"gage_height_ft":3.58},{"date":"2026-03-26","discharge_cfs":0.71,"gage_height_ft":3.56},{"date":"2026-03-25","discharge_cfs":0.78,"gage_height_ft":3.57},{"date":"2026-03-24","discharge_cfs":0.8,"gage_height_ft":3.57},{"date":"2026-03-23","discharge_cfs":0.81,"gage_height_ft":3.57},{"date":"2026-03-22","discharge_cfs":0.93,"gage_height_ft":3.59},{"date":"2026-03-21","discharge_cfs":0.93,"gage_height_ft":3.59},{"date":"2026-03-20","discharge_cfs":0.92,"gage_height_ft":3.59},{"date":"2026-03-19","discharge_cfs":0.97,"gage_height_ft":3.6},{"date":"2026-03-18","discharge_cfs":0.87,"gage_height_ft":3.59},{"date":"2026-03-17","discharge_cfs":0.87,"gage_height_ft":3.59},{"date":"2026-03-16","discharge_cfs":0.88,"gage_height_ft":3.6},{"date":"2026-03-15","discharge_cfs":1.33,"gage_height_ft":3.65},{"date":"2026-03-14","discharge_cfs":1.18,"gage_height_ft":3.64},{"date":"2026-03-13","discharge_cfs":1.42,"gage_height_ft":3.66},{"date":"2026-03-12","discharge_cfs":2.88,"gage_height_ft":3.83},{"date":"2026-03-11","discharge_cfs":2.48,"gage_height_ft":3.78},{"date":"2026-03-10","discharge_cfs":0.66,"gage_height_ft":3.58},{"date":"2026-03-09","discharge_cfs":1.1,"gage_height_ft":3.64},{"date":"2026-03-08","discharge_cfs":0.87,"gage_height_ft":3.62},{"date":"2026-03-07","discharge_cfs":0.46,"gage_height_ft":3.54},{"date":"2026-03-06","discharge_cfs":0.34,"gage_height_ft":3.5}],"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)."}