Deep River (IN) near Merrillville

Last updated: Jul 23, 2025, 5:55 PM UTC

Flood Impacts 🅘

  • 14.5 - Ainsworth Road threatened near Hobart.
  • 13.5 - US-30 threatened in Merrillville.
  • 13 - Lincoln Highway threatened near Merrillville.

Gauge Info

Coordinates 41.4524, -87.2583
RFC NCRFC
State IN
WFO LOT
County Lake
Data Provider(s)
US Geological Survey USGS--Water Resources of the United States
USGS 04092944

Gauge Location

Recent Crests

1. 9.89 ft on 05-09-2021
2. 11.09 ft on 05-24-2020
3. 11.07 ft on 05-15-2020
4. 10.73 ft on 04-30-2020
5. 11.08 ft on 01-11-2020

Historic Crests

1. 11.80 ft on 02-21-2018
2. 11.36 ft on 05-01-2019
3. 11.21 ft on 09-28-2019
4. 11.09 ft on 05-24-2020
5. 11.08 ft on 01-11-2020

Low Water Records

(P) -  Preliminary values subject to further review
¹ -  Gauge datum changed during this year

Vertical Datum Table

type NAVD88
major Flooding 663.03 ft
moderate Flooding 660.03 ft
minor Flooding 658.03 ft
action 657.03 ft
Latest Value 652.75 ft
Gauge Zero 649.53 ft

Gauge Photos

No Images Found

Probability Information

No Images Available

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

WFO Information

Weather Forecast Office
Chicago
333 W. University Dr.
Romeoville, IL 60446
Official Homepage