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.
Gauge Information
Flood Categories (in feet)
Major Flood Stage:
32
Moderate Flood Stage:
29.5
Flood Stage:
28
Action Stage:
17
Historical Crests (1) 49.00 ft on 12/09/1935 (2) 43.50 ft on 05/31/1929 (3) 40.20 ft on 06/09/2001 (4) 36.46 ft on 09/11/1998 (5) 34.63 ft on 03/04/1992 Show More Historical Crests
Low Water Records
Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.
Extended rating:
Rating Curve Extension - The Rating Curve Extension is calculated by using either a linear, logarithmic, or hydraulic technique to extend the rating curve above the currently established relationship between stage and flow.
Flood Impacts
32
At levels above 32 feet major flooding begins as portions of Allen Parkway and Memorial Drive are under 1 to 2 feet of water and homes upstream of the gage begin flooding.
29.5
At levels above 29.5 feet moderate lowland flooding begins Memorial Drive between Sandman Streeet and Waugh Drive becomes inundated.
28.7
At levels above 28.7 feet Allen Parkway east of Montrose Boulevard and Memorial Drive east of Waugh Drive flood.
28
At levels above 28 feet minor lowland flooding begins as water spills out of main channel and floods the lowest levels of apartments near the gage.
17
At levels abve 17 feet hike and bike trails within the channel become inundated.
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.
Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.
