Project Description
JE Fuller collaborated with CA Group and Douglas County Public Works on the drainage design for the 2.5-mile Muller Parkway project in Minden, Nevada. The project was divided into two phases: an initial two-lane paved section and a subsequent four-lane roadway with curbs, median, bike path, and a diversion channel for off-site runoff. Utilizing Douglas County’s methodologies, JE Fuller developed hydrologic and hydraulic models (FLO-2D for the 25-year storm event and HEC-RAS 2D for the 100-year storm event) to assess upstream runoff impacting the roadway. The analysis informed the design and placement of drainage infrastructure, including culverts for flood control and irrigation, storm drains, and sidewalk scuppers, addressing both interim and ultimate conditions. Throughout the three-year design process, the team adapted to challenges such as the addition of traffic roundabouts, alignment shifts, profile changes, project segmentation, and integration of third-party design elements. These adjustments required multiple plan iterations before finalizing the project and initiating construction.
Additionally, JE Fuller managed the Conditional Letter of Map Revision (CLOMR) process to redefine Special Flood Hazard Zones affected by the roadway. The HEC-RAS 2D model was updated to reflect design changes, and the team navigated challenges, including unavailable effective models, outdated mapping standards, and changes in FEMA’s reviewing consultants. Regular coordination with FEMA and Douglas County staff ensured the successful issuance of the CLOMR.
Services Provided:
- Drainage Design Support
- H&H Modeling
- Drainage Infrastructure Design
- Adaptive Design Process
- Floodplain Management & FEMA Coordination
- Collaboration & Review
Location
Minden, NV
Client
CA Group and Douglas County Public Works Department