{"site_no":"08159000","name":"Onion Ck at Us Highway 183, Austin, TX","slug":"onion-ck-at-us-highway-183-austin-tx","url":"https://streamflowdata.com/stations/onion-ck-at-us-highway-183-austin-tx","state":"TX","county":"Travis County","lat":30.1779899,"lng":-97.6886138,"drainage_area_sqmi":321,"datum_ft":443.28,"huc_code":"12090205","river":{"name":"Onion Creek","slug":"onion-creek-tx"},"current":{"reading_time":"2026-05-30T00:20:00+00:00","discharge_cfs":12.1,"gage_height_ft":5.32},"flood_stage":{"action_stage_ft":15,"flood_stage_ft":17,"moderate_flood_ft":23,"major_flood_ft":27},"today_statistics":{"month":6,"day":11,"p10":0,"p25":2,"p50":9.4,"p75":93,"p95":2970},"recent_daily_values":[{"date":"2026-05-28","discharge_cfs":47.7,"gage_height_ft":5.8},{"date":"2026-05-27","discharge_cfs":116,"gage_height_ft":6.25},{"date":"2026-05-26","discharge_cfs":12.5,"gage_height_ft":5.3},{"date":"2026-05-25","discharge_cfs":6.73,"gage_height_ft":5.1},{"date":"2026-05-24","discharge_cfs":10.3,"gage_height_ft":5.26},{"date":"2026-05-23","discharge_cfs":23.5,"gage_height_ft":5.54},{"date":"2026-05-22","discharge_cfs":78.7,"gage_height_ft":6.03},{"date":"2026-05-21","discharge_cfs":18.2,"gage_height_ft":5.4},{"date":"2026-05-20","discharge_cfs":28.2,"gage_height_ft":5.5},{"date":"2026-05-19","discharge_cfs":2.1,"gage_height_ft":4.75},{"date":"2026-05-18","discharge_cfs":2.07,"gage_height_ft":4.75},{"date":"2026-05-17","discharge_cfs":2.41,"gage_height_ft":4.79},{"date":"2026-05-16","discharge_cfs":3.06,"gage_height_ft":4.85},{"date":"2026-05-15","discharge_cfs":4.51,"gage_height_ft":4.97},{"date":"2026-04-20","discharge_cfs":2.03,"gage_height_ft":4.77},{"date":"2026-04-19","discharge_cfs":0.3,"gage_height_ft":4.48},{"date":"2026-04-18","discharge_cfs":0.28,"gage_height_ft":4.48},{"date":"2026-04-17","discharge_cfs":0.38,"gage_height_ft":4.51},{"date":"2026-04-16","discharge_cfs":0.57,"gage_height_ft":4.57},{"date":"2026-04-15","discharge_cfs":0.84,"gage_height_ft":4.64},{"date":"2026-04-14","discharge_cfs":1.19,"gage_height_ft":4.73},{"date":"2026-04-13","discharge_cfs":1.44,"gage_height_ft":4.78},{"date":"2026-04-12","discharge_cfs":1.58,"gage_height_ft":4.8},{"date":"2026-04-11","discharge_cfs":1.66,"gage_height_ft":4.82},{"date":"2026-04-10","discharge_cfs":1.85,"gage_height_ft":4.85},{"date":"2026-04-09","discharge_cfs":0.6,"gage_height_ft":4.58},{"date":"2026-04-08","discharge_cfs":0.98,"gage_height_ft":4.68},{"date":"2026-04-07","discharge_cfs":1.44,"gage_height_ft":4.78},{"date":"2026-04-06","discharge_cfs":2.44,"gage_height_ft":4.94},{"date":"2026-04-05","discharge_cfs":7.25,"gage_height_ft":5.37},{"date":"2026-04-04","discharge_cfs":9.92,"gage_height_ft":5.44},{"date":"2026-04-03","discharge_cfs":8.68,"gage_height_ft":5.47},{"date":"2026-04-02","discharge_cfs":31.2,"gage_height_ft":5.38},{"date":"2026-04-01","discharge_cfs":0,"gage_height_ft":4.05},{"date":"2026-03-31","discharge_cfs":0,"gage_height_ft":4.1},{"date":"2026-03-30","discharge_cfs":0,"gage_height_ft":4.14},{"date":"2026-03-29","discharge_cfs":0,"gage_height_ft":4.19},{"date":"2026-03-28","discharge_cfs":0.01,"gage_height_ft":4.24},{"date":"2026-03-27","discharge_cfs":0.01,"gage_height_ft":4.27},{"date":"2026-03-26","discharge_cfs":0.02,"gage_height_ft":4.29},{"date":"2026-03-25","discharge_cfs":0.04,"gage_height_ft":4.32},{"date":"2026-03-24","discharge_cfs":0.05,"gage_height_ft":4.34},{"date":"2026-03-23","discharge_cfs":0.07,"gage_height_ft":4.35},{"date":"2026-03-22","discharge_cfs":0.08,"gage_height_ft":4.37},{"date":"2026-03-21","discharge_cfs":0.12,"gage_height_ft":4.39},{"date":"2026-03-20","discharge_cfs":0.15,"gage_height_ft":4.41},{"date":"2026-03-19","discharge_cfs":0.17,"gage_height_ft":4.42},{"date":"2026-03-18","discharge_cfs":0.19,"gage_height_ft":4.44},{"date":"2026-03-17","discharge_cfs":0.26,"gage_height_ft":4.47},{"date":"2026-03-16","discharge_cfs":0.45,"gage_height_ft":4.53},{"date":"2026-03-15","discharge_cfs":0.74,"gage_height_ft":4.61},{"date":"2026-03-14","discharge_cfs":0.99,"gage_height_ft":4.68},{"date":"2026-03-13","discharge_cfs":1.35,"gage_height_ft":4.76},{"date":"2026-03-12","discharge_cfs":3.31,"gage_height_ft":5.04},{"date":"2026-03-11","discharge_cfs":3.4,"gage_height_ft":4.94},{"date":"2026-03-10","discharge_cfs":0.57,"gage_height_ft":4.57},{"date":"2026-03-09","discharge_cfs":0.87,"gage_height_ft":4.65},{"date":"2026-03-08","discharge_cfs":2.31,"gage_height_ft":4.91},{"date":"2026-03-07","discharge_cfs":0.59,"gage_height_ft":4.44},{"date":"2026-03-06","discharge_cfs":0.02,"gage_height_ft":4.28}],"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)."}