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B.A. Steinhagen contains several non-native invasive aquatic vegetation species which have plagued the reservoir for many years and prevent adequate access to the resource. Problematic invasive exotic species present on Steinhagen include water hyacinth, alligatorweed, giant and common salvinia, and hydrilla. Historically, water hyacinth and alligatorweed were the most invasive species in the reservoir. The arrival of common salvinia approximately 10 years ago added to extensive problems associated with invasive vegetation. The discovery of giant salvinia in 2007 poses the most serious threat to date.
In addition to the restriction of access, nuisance aquatic vegetation negatively impacts interests critical to the economy of communities and businesses both locally and downstream. The Lower Neches Valley Authority (LNVA) depends on the water stored in B.A. Steinhagen to provide water necessary for agriculture and industry. The Southwestern Power Administration depends on the water stored in B.A. Steinhagen for the generation of electricity. Excessive aquatic vegetation can significantly restrict flows during critical periods, which quickly translates into lost income and hardship for the region.
Efforts have been made over the years to control the growth and spread of nuisance vegetation in the lake and associated river system, as well as prevent the introduction of additional problem species.
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Before Exclusion Device/After Installation
Lake level drawdowns are neither the primary nor most effective means of controlling the nuisance aquatic vegetation in B. A. Steinhagen, but they may still be utilized in the future as part of a comprehensive approach to vegetation management, especially when coordinated with planned construction or repair efforts at the project. Town Bluff will keep the visiting public informed of any future drawdown plans, so that accommodations can be made due to limited lake access during these times.
Texas Invasives Protect Your Waters US Fish & Wildlife Services USDA Inavsive Species Info Center