Big Thompson River (CO) at Loveland

Last updated: Jul 17, 2025, 10:45 PM UTC

Flood Impacts 🅘

  • 12 - Extensive, life-threatening flooding occurs with roads crossing the Big Thompson River likely impassable. This level represents a flood that has a 1-percent chance of being equaled or exceeded in any given year. For more information click <a href="inundation/faq_google.php">here</a>.
  • 11.5 - Widespread, major flooding occurs with many roads, homes and businesses impacted. This level represents a flood that has a 2-percent chance of being equaled or exceeded in any given year. For more information click <a href="inundation/faq_google.php">here</a>.
  • 11 - Numerous streets along and bridges crossing the Big Thompson River in Loveland flood.

Gauge Info

Coordinates 40.3786, -105.061
RFC MBRFC
State CO
WFO BOU
County Larimer
Data Provider(s)
U.S. Geological Survey USGS--Water Resources of the United States
USGS 06741510

Gauge Location

Recent Crests

1. 4.61 ft on 06-07-2021
2. 3.66 ft on 06-01-2020
3. 2.97 ft on 06-08-2019
4. 2.89 ft on 05-28-2018
5. 3.47 ft on 06-23-2017

Historic Crests

1. 11.93 ft on 09-13-2013
2. 10.48 ft on 04-30-1999
3. 10.10 ft on 04-30-1980
4. 9.73 ft on 05-30-1995
5. 8.23 ft on 08-11-1994

Vertical Datum Table

type NGVD29
major Flooding 4917.50 ft
moderate Flooding 4917.00 ft
minor Flooding 4916.00 ft
action 4915.00 ft
Latest Value 4907.65 ft
Gauge Zero 4906.00 ft

Gauge Photos

Photo 1 of 2

Looking Downstream

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
Denver/Boulder
325 Broadway
Boulder, CO 80305-3328
Official Homepage