Projects > Teton Creek Flood Modeling

Flood map for Teton Creek showing estimated flood boundaries

Flood map for Teton Creek showing estimated flood boundaries

Confluence worked with the Friends of the Teton River to provide conceptual design and planning services for restoring the Moses-Headcut Reach of Teton Creek following severe, illegal channelization of the stream bed by a previous landowner. Significant development along the banks called for careful evaluation of the flooding concerns along Teton Creek.Several iterations of hydraulic modeling with HEC-RAS were completed.The results of the HEC-RAS modeling were used to map the extents of the 100-year flood for the proposed preliminary design and to compare those results to previously completed studies.This information was also used to make recommendations for sizing the new county bridge at the downstream end of the project.

Confluence also produced several maps which were used by FTR to gain landowner support and to determine their level of comfort with the proposed preliminary design. Confluence attended and presented project update reports at numerous public and technical advisory committee meetings, helping FTR to gain approval and support for the project from a diverse group of stakeholders.