Welcome, TerraSite Design, to the Interstate Engineering Team!

Landfill Solutions

Built for Longevity, Designed for Compliance.

Interstate Engineering offers full-service landfill solutions that support the responsible management of municipal, inert, and special waste. Our experienced team works with clients from initial design through construction and long-term operation, delivering results that meet both environmental standards and community expectations.

When landfill development evolves into a long-term investment, it requires a diverse set of technical skills and dedicated resources. That’s where we come in. We assist with expansions, final cover systems, permitting, operations, and master planning, handling everything with precision, compliance, and care.

Your Landfill Project Deserves Experienced, Long-Term Support.

Let’s build a solution that works today and protects tomorrow.

Services

Landfill Expansions

Engineering support and strategic planning for expanding landfill capacity while meeting all local, state, and federal regulations

Final Covers

Design and implementation of final closure systems to protect groundwater, reduce infiltration, and meet long-term environmental obligations

Permitting

Preparation and submission of detailed applications for new sites, expansions, and modifications

Master Planning

Long-term landfill planning to guide site development, operations, and compliance over the full lifecycle of your facility

Operations

Ongoing compliance reporting, environmental monitoring records, and operational logs to support audits and maintain transparency

Hear From Our Team

Work With Us

1

Plan with Precision

We begin with a full assessment of your site, goals, and regulatory requirements to create a strategy that’s realistic and forward-thinking.

2

Design for Performance

Our multidisciplinary team develops technical solutions that address structural, environmental, and operational needs all under one roof.

3

Support Through Completion

Our team provides ongoing support through construction, permitting, compliance monitoring, and reporting.

Featured Projects