Iowa River at Marengo

Critical Stages

13' - Action

15' - Flood

17' - Moderate

19' - Major

Latest Observation

Updated: 6:00 AM CST 12/11/25

Status: No Flooding

Stage: 6.6 ft

Flow: 0.515 kcfs

Forecast not available for this location.

24.5' - Water reaches the top of the levee at the invert at Highway V66.

23.7' - Water reaches the top of the levee invert on the west side of Marengo.

22' - Water approaches the top of the levee on the south bank at Marengo.

20.9' - Water reaches the bottom of the Highway V66 bridge.

19.5' - Water affects the Whirlpool Corporation parking lot and southeast exterior of the plant in Middle Amana.

19' - Major Flood Stage. Homes west of Marengo are affected by floodwaters. Significant flooding of agricultural land.

18' - Water breaches the mill race dikes near Middle Amana.

17' - Moderate Flood Stage. Extensive inundation of agricultural land.

16' - Water affects agricultural land along the river. Water is several feet deep in places.

15' - Water reaches the bottom of the levee surrounding Marengo. Water affects low lying agricultural land along the river

14' - Low lying agricultural land and pastureland along the river upstream of Marengo is affected.

11' - Water affects the lowest agricultural land along the river.