Stabilizing Infrastructure in Death Valley National Park
Project Overview
Project: Zabriskie Point Drainage Improvements
Type: National Park Infrastructure / Erosion Control
Location: Zabriskie Point, Death Valley National Park, CA
Scope: Scoping, preliminary design, and construction management
Role: Prime/Project Design
Outcome: Restored overlook with effective drainage and stabilized structures
Services Provided by HECO Engineers:
- Civil Engineering
- Geotechnical Engineering
- Project Management
- Construction Management
- Hydraulic Analysis
Problem
The Zabriskie Point Overlook in Death Valley National Park faced ongoing erosion challenges due to inadequate drainage. Originally constructed in 1927 and enhanced by the Civilian Conservation Corps in 1933, the site’s soft mudstone and sandstone geology made it highly susceptible to damage.
- Stormwater flowed through cracks between the asphalt surface and the historic rock wall, eroding soil beneath the wall and creating voids.
- This led to sinkholes, cracks, and settlement, particularly on the west side, compromising the wall’s stability.
- The area’s sparse vegetation and soft geology contributed to the high susceptibility to erosion.
- Previous drainage pipes through the wall and concrete seals had proven ineffective in managing water flow.
Solution
HECO Engineers provided comprehensive services to address these failures, moving from site visits and geotechnical explorations to final construction management. Geotechnical and hydraulic analyses informed the development of specific alternatives for wall stabilization and drainage improvements.
- Reinforced the west wall by disassembling and rebuilding it with embedded geogrid for structural stability.
- Hardened the toe of the wall with a stabilized soil “dirt skirt” using soil-cement to prevent future erosion.
- Installed a stormwater collection system with catch basins, pipes, and discharge points.
- Lowered and repaving the asphalt surface while adding concrete ribbons and benches to improve the visitor area.
Result
Construction was completed in 12 weeks, restoring the overlook with a stabilized structure and effective drainage system. The project successfully preserved the historic character of the site while meeting National Park Service standards for environmental compliance.
- Upgraded the drainage system to effectively address long-term erosion issues.
- Stabilized the historic rock wall and overlook surface to ensure visitor safety.
- Maintained historic preservation standards throughout the scoping and design process.
Preserving Heritage Through Resilient Infrastructure
HECO Engineers’ work at Zabriskie Point in Death Valley National Park demonstrates our commitment to delivering effective engineering solutions in some of the most challenging environments in the country. Our integrated approach ensures both historic preservation and long-term stability for iconic public landmarks.
Contact HECO Engineers today for a consultation on your next infrastructure or erosion control project.
