Resources | Environmental Noise Control

Southeast Trenchless Journal Features ENC on HDD Noise Management

Written by Amanda Gilliam | 11-19-25

We're excited to share that Environmental Noise Control was recently featured in the Southeast Journal of Trenchless Technology with an in-depth article on noise impact management for Horizontal Directional Drilling (HDD) operations. When your HDD project is next to a residential neighborhood, noise complaints can shut down operations fast. That's why we wanted to focus the article on helping contractors stay compliant, on schedule, and community-friendly.

Managing Construction Noise in Sensitive Areas

As HDD projects increasingly occur near residential areas and sensitive wildlife habitats, understanding how to reduce noise pollution has become essential for project success. The article provides a comprehensive framework for contractors, design engineers, and project owners to navigate the growing complexity of noise regulations, including:

Developing effective noise management plans during bidding — Before pricing, confirm whether ambient noise surveys were completed, understand specific dBA limits, and determine responsibility for mitigation. Vague "perimeter-based" requirements often lead to over-purchasing materials or compliance failures.

Establishing accurate baselines — Use GIS software to map distances to sensitive areas and identify natural barriers like vegetation or elevation changes that already provide noise reduction. Conduct 24-72 hour ambient sound surveys at compliance points to document existing conditions — critical if background noise already exceeds limits before construction begins.

Selecting cost-effective mitigation through computer modeling — Modeling can reveal whether localized mitigation near specific residences is sufficient rather than surrounding the entire site, potentially saving significant material costs and installation time. 

Overcoming site-specific constraints — When overhead power lines prevent tall barriers, use portable panels positioned closer to equipment. When underground utilities block ground-penetrating supports, specify freestanding panel systems. For high-wind sites, engineered barriers with P.E.-stamped drawings prevent structural failures.

Implementing real-time compliance monitoring — Type 1 sound level meters can continuously log readings and transmit data to web-based platforms via cellular connection, allowing 24/7 access with automated alerts when sound exceeds thresholds.

Reducing Noise Pollution With Early Planning

One of the article's core messages resonates with what we tell clients every day — early involvement in noise management reduces risks and prevents costly delays. By engaging acoustic engineers during project evaluation rather than after issues arise, teams can accurately price mitigation measures and avoid surprises that impact schedules and budgets.

Read the Full Article

Want to dive deeper into best practices for keeping your HDD projects quiet, compliant, and community-friendly? Read the complete article to learn how proper noise management can reduce permitting delays and foster positive relationships with neighboring communities.

Have questions about noise management for your upcoming project? Contact our team to discuss how we can help you assess, predict, and mitigate noise impacts effectively.