LANDA PARK DAM MODIFICATIONS AT LANDA PARK REHABILITATION PROJECT
NEW BRAUNFELS, TEXAS
The project included a geotechnical engineering evaluation of Landa Park Lake Dam. Landa Park Lake Dam is situated near the headwaters of the Comal River in New Braunfels, Texas. The dam is located about 1.85 miles north of Interstate Highway 35, and 1.97 miles west of Highway 46 and can be accessed from 350 Aquatic Circle. The dam separates Landa Park Lake from a recreational swimming pool that serves as one of the primary attractions to Landa Park. The dam is an earthen structure with the downstream face comprised of a two tiered system, i.e. a near-vertical masonry rock wall above a shotcrete/gunnite covered wall. The dam was originally constructed sometime around the mid 1800’s, and is currently owned and maintained by the City of New Braunfels. Dam modifications were being considered to reduce the frequency of overtopping during flooding. Initial plans were to modify the dam by placing fill to raise the height of the dam crest. However, the construction of a parapet wall along the lake’s edge was also being considered as an improvement alternate, as well as options for constructing a seepage cutoff, or structurally improving the dam.