Z05450400 USGS H05450400 4224290930422001919083SW07080207735 950.69 N05450400 Iowa River at Steamboat Rock, IA Y05450400 305450400 20210907 496 6.30 305450400 20220506 1330 7.35 2 305450400 20230304 2500 10.17 2 7.96 305450400 20240521 5430 10.73