Timpson Reservoir 2020 Survey Report media download(PDF 565.4 KB)

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Timpson Reservoir - 2020 Survey Report

Prepared by Dan Ashe and Todd Driscoll
Inland Fisheries Division
Jasper District, Brookeland, Texas

This is the authors' summary from a 26-page report. For a copy of the complete report, use the download link in the sidebar.

Fish populations in Lake Timpson were surveyed in 2020 using fall electrofishing and trap netting and in 2021 using spring electrofishing (Largemouth Bass only). Historical data are presented with the 2020-2021 data for comparison. This report summarizes the results of the surveys and contains a management plan for the reservoir based on those findings.

Reservoir Description

Lake Timpson is located in Shelby County. The Shelby County Freshwater Supply District is the controlling authority. Primary uses are water supply and recreation. This reservoir has a surface area of 223 acres, a shoreline length of 8 miles, and an average depth of 8 feet. Water level fluctuations average 1-3 feet annually. Boat and bank access are adequate, with one boat ramp present.

Management History

Important sport fish included Largemouth Bass and crappie. Prior to 1994, Largemouth Bass were managed under statewide regulations. In 1994, Largemouth Bass regulations were changed to a 14- to 21-inch slot length limit. This regulation has had the desired effect of producing increased numbers of Largemouth Bass that are within the protective slot length limit. In 2003, hydrilla was found in Lake Timpson, and coverage expanded to 40% of the reservoir surface area in 2004. Triploid Grass Carp were stocked in 2004 at a rate of 5 fish/vegetated acre (448 fish) to reduce hydrilla coverage. Since 2006, no hydrilla has been observed. In 2010, giant salvinia was discovered, and eradication efforts were attempted with numerous herbicide treatments; no plants were observed in 2011 or 2012. However, giant salvinia reappeared in 2013 and coverage peaked at 13 acres in 2017. Since then, routine herbicide treatments have maintained abundance at < 1 acre.

Fish Community

Management Strategies

Sport Fish Restoration Logo

Performance Report as required by Federal Aid in Sport Fish Restoration Act Texas Federal Aid Project F-221-M-2 Inland Fisheries Division Monitoring and Management Program

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