Iowa River near Lone Tree (Tri-County Bridge)

Last updated: Jul 4, 2025, 3:28 AM UTC
No watches, warnings or advisories are in effect for this area.

Flood Impacts 🅘

  • 22 - Major Flood Stage. Hills access is flooded.
  • 20 - Water reaches the bottom of the County Road W66 bridge deck.
  • 19 - Tri-County Bridge is closed as there is no access from the east side due to the roadway being flooded. Homes on Lola Lane, Y Avenue and near the Tri-County Bridge are affected as access is cut off due to flooded roads.

Gauge Info

Coordinates 41.4238, -91.4785
RFC NCRFC
State IA
WFO DVN
County Louisa
Data Provider(s)
U.S. Geological Survey U.S. Geological Survey
USGS 05455700
COE Website

Gauge Location

Recent Crests

1. 15.56 ft on 06-10-2020
2. 19.09 ft on 03-15-2019
3. 20.39 ft on 10-09-2018
4. 16.12 ft on 09-07-2018
5. 15.78 ft on 01-17-2017

Historic Crests

1. 23.10 ft on 06-15-2008
2. 22.94 ft on 07-07-1993
3. 22.13 ft on 07-03-2014
4. 21.99 ft on 04-19-2013
5. 20.39 ft on 10-09-2018

Vertical Datum Table

type NGVD29
major Flooding 610.16 ft
moderate Flooding 606.66 ft
minor Flooding 604.16 ft
action 602.16 ft
Latest Value 598.57 ft
Gauge Zero 588.16 ft

Gauge Photos

No Images Found

Probability Information

Photo 1 of 3

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
Quad Cities
9040 N Harrison Street
Davenport, IA 52806-7326
Official Homepage