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Hydrograph River at a Glance Download
Coosa River at Logan Martin Dam Pool (ft)Highest Observation: 463.41 ft at 2:00PM Feb 15, 2020Observed: 463.35 ft at 4:00PM Feb 15, 2020Observed: 463.31 ft at 5:00PM Feb 15, 2020Observed: 463.21 ft at 7:00PM Feb 15, 2020Observed: 463.19 ft at 8:00PM Feb 15, 2020Observed: 463.12 ft at 9:00PM Feb 15, 2020Observed: 463.08 ft at 10:00PM Feb 15, 2020Observed: 462.97 ft at 11:00PM Feb 15, 2020Observed: 462.97 ft at 12:00AM Feb 16, 2020Observed: 462.89 ft at 1:00AM Feb 16, 2020Observed: 462.83 ft at 2:00AM Feb 16, 2020Observed: 462.77 ft at 3:00AM Feb 16, 2020Observed: 462.72 ft at 4:00AM Feb 16, 2020Observed: 462.66 ft at 5:00AM Feb 16, 2020Observed: 462.61 ft at 6:00AM Feb 16, 2020Observed: 462.52 ft at 7:00AM Feb 16, 2020Observed: 462.45 ft at 8:00AM Feb 16, 2020Observed: 462.45 ft at 9:00AM Feb 16, 2020Observed: 462.35 ft at 10:00AM Feb 16, 2020Observed: 462.29 ft at 11:00AM Feb 16, 2020Observed: 462.24 ft at 12:00PM Feb 16, 2020Observed: 462.14 ft at 1:00PM Feb 16, 2020Observed: 462.14 ft at 2:00PM Feb 16, 2020Observed: 462.11 ft at 3:00PM Feb 16, 2020Observed: 461.99 ft at 4:00PM Feb 16, 2020Observed: 461.92 ft at 5:00PM Feb 16, 2020Observed: 461.88 ft at 6:00PM Feb 16, 2020Observed: 461.81 ft at 7:00PM Feb 16, 2020Observed: 461.73 ft at 8:00PM Feb 16, 2020Observed: 461.68 ft at 9:00PM Feb 16, 2020Observed: 461.58 ft at 10:00PM Feb 16, 2020Observed: 461.43 ft at 11:00PM Feb 16, 2020Observed: 461.43 ft at 12:00AM Feb 17, 2020Observed: 461.37 ft at 1:00AM Feb 17, 2020Observed: 461.34 ft at 2:00AM Feb 17, 2020Observed: 461.23 ft at 3:00AM Feb 17, 2020Observed: 461.19 ft at 4:00AM Feb 17, 2020Observed: 461.06 ft at 5:00AM Feb 17, 2020Observed: 461.04 ft at 6:00AM Feb 17, 2020Observed: 460.95 ft at 7:00AM Feb 17, 2020Observed: 460.9 ft at 8:00AM Feb 17, 2020Observed: 460.81 ft at 9:00AM Feb 17, 2020Observed: 460.75 ft at 10:00AM Feb 17, 2020Observed: 460.66 ft at 11:00AM Feb 17, 2020Observed: 460.58 ft at 12:00PM Feb 17, 2020Observed: 460.46 ft at 1:00PM Feb 17, 2020Observed: 460.4 ft at 2:00PM Feb 17, 2020Observed: 460.27 ft at 3:00PM Feb 17, 2020Observed: 460.2 ft at 4:00PM Feb 17, 2020Observed: 460.1 ft at 5:00PM Feb 17, 2020Observed: 460 ft at 6:00PM Feb 17, 2020Observed: 459.9 ft at 7:00PM Feb 17, 2020Observed: 459.82 ft at 8:00PM Feb 17, 2020Observed: 459.74 ft at 9:00PM Feb 17, 2020Observed: 459.66 ft at 10:00PM Feb 17, 2020Observed: 459.57 ft at 11:00PM Feb 17, 2020Observed: 459.53 ft at 12:00AM Feb 18, 2020Observed: 459.52 ft at 1:00AM Feb 18, 2020Observed: 459.5 ft at 2:00AM Feb 18, 2020Observed: 459.54 ft at 3:00AM Feb 18, 2020Observed: 459.51 ft at 4:00AM Feb 18, 2020Observed: 459.5 ft at 5:00AM Feb 18, 2020Observed: 459.5 ft at 6:00AM Feb 18, 2020Observed: 459.53 ft at 7:00AM Feb 18, 2020Observed: 459.47 ft at 8:00AM Feb 18, 2020Observed: 459.46 ft at 9:00AM Feb 18, 2020Observed: 459.48 ft at 10:00AM Feb 18, 2020Observed: 459.49 ft at 11:00AM Feb 18, 2020Observed: 459.51 ft at 12:00PM Feb 18, 2020CCSA1(plotting HPIRZ) Graph Created (1:15PM Feb 18, 2020)ObservedLatest observed value: 459.51 ft at 12:00 PM CST 18-Feb-2020. Flood Stage is 467 ft
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Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: Not Available
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Coosa River at Logan Martin Dam are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Neely Henry Dam Upstream Gauge Downstream Gauge Downstream Gauge - at Childersburg
Flood Categories (in feet)
Major Flood Stage: 475
Moderate Flood Stage: 470
Flood Stage: 467
Action Stage: 465.5
Low Stage (in feet): 453.5

Historic Crests
(1) 475.31 ft on 04/06/1977
(2) 473.05 ft on 02/18/1990
(3) 472.61 ft on 03/19/1980
(4) 472.52 ft on 10/06/1995
(5) 472.49 ft on 03/19/1990
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(P): Preliminary values subject to further review.

Recent Crests
(1) 467.66 ft on 02/26/2016 (P)
(2) 468.86 ft on 05/08/2013 (P)
(3) 470.55 ft on 03/12/2011 (P)
(4) 467.03 ft on 11/13/2009
(5) 469.86 ft on 01/09/2009
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 458.27 ft on 10/17/1972

For more information on your flood risk go to

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Gauge LocationGauge Map Marker
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
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475 Extensive lakeside flooding occurs. Many access roads well as many permanent residences.
473.5 Some flooding of permanent structures occurs around the lake.
467 Flooding of some boathouses and docks around the lake occurs.
465 Some minor flooding of lakeside property...including piers and boat ramps...occurs.
Low Water Impacts Collapse
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453.5 Ft Bottom of conservation pool.
About This Location Collapse

Latitude: 33.409167° N, Longitude: 86.338056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 467 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 0 ft 467 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

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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.
NWS Information
National Weather Service
Birmingham Weather Forecast Office
465 Weathervane Road
Calera, AL 35040-5427
(205) 664-3010
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Page last modified: 4-Mar-2019 11:29 PM
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