Zoo – HDD & Open Cut

This project involved navigating the complex underground environment of a historic zoo with poorly documented utility infrastructure. We implemented both horizontal directional drilling (HDD) for a 450-foot section and open-cut techniques while allowing the zoo to maintain normal operations and meet stringent deadlines.

Challenges

• Extremely congested underground utility environment with limited documentation
• Need to maintain safe, confined work areas due to high visitor traffic
• Discovery of unexpected infrastructure, including an undocumented storm drain
• Adverse weather conditions requiring weekend work to maintain schedule

Solutions & Approach

• Conducted extensive proactive potholing to identify nearly all underground utilities before boring began
• Implemented carefully planned work zones to minimize impact on zoo operations
• Demonstrated flexibility by providing additional assistance wherever needed
• Maintained accelerated work schedule despite weather delays