Wetlands that could potentially be affected by project activities along the creek will be evaluated. The creation of new wetlands to replace those that have been or could be lost will also be evaluated, as will the restoration of historic wetlands that assisted in maintaining water quality in the creek. A 1998 study commissioned specifically to answer this question concluded that no adverse impacts are expected from activities that would reduce flood damages on Clear Creek. Sediment sampling and analysis were conducted, and results indicated that many of the contaminants of concern were not present in samples collected from Clear Creek. Maybe, depending on the study results.
Detention basins are one tool being evaluated as part of the study.
Currently, on-site detention basins are being incorporated into most development plans in many areas of the watershed. The re-evaluation of the project includes a full analysis of potential downstream impacts from any upstream improvements on Clear Lake. The Corps has already conducted a full analysis and developed a computer model evaluating potential flood impacts on a project alternative proposed by Harris County Flood Control. This analysis was completed in April 1999, so the information is up to date. The Corps will use the model to evaluate additional alternatives and assess any potential downstream impact on Clear Lake residents.