Ms. Iblings prepared a hydraulic analysis of the bridge and approach trails and grading, in support of the Structure Selection and Design in coordination with Centennial Engineering, Inc. The Gebhard Bridge is in the floodplain and floodway of the South Boulder Creek, which has a 2-D effective hydraulic model prepared in Mike Flood. In coordination with the City, County, and DHI, we created a 1-D model of the creek to demonstrate a no-rise for the bridge construction. The Project included the approval of a Boulder County Floodplain Permit, and permit closeout, requiring coordination with the City, County, and contractor (Western States Reclamation, Inc.). The project construction was completed with a ribbon cutting ceremony in 2025.