Designing Alaska's Future. Prioritizing Client Success. Building Stronger Communities.

Featured Projects x

Expertise x

Civil Engineering

HDL provides creative civil engineering solutions to tackle any project, whether it’s inspecting a bulk fuel tank farm or creating a park’s master plan. Read more about Civil Engineering

Transportation Engineering

HDL’s Transportation Engineers are the team of choice for state and local agencies to design roadway and highway projects in Alaska. Read more about Transportation Engineering

Aviation Engineering

HDL’s Aviation Engineers and Designers have worked on projects ranging from small general aviation airports to large hub airports. Read more about Aviation Engineering

Water and Wastewater Engineering

HDL’s Water and Wastewater Engineers provide services for rural utilities, regional water transmission mains, municipal water systems, roadway projects, water/wastewater distribution, collection, and treatment systems. Read more about Water and Wastewater Engineering

Geotechnical Engineering

HDL’s Geotechnical Services Group brings a wide range of expertise to assist clients with soil and groundwater challenges. Read more about Geotechnical Engineering

Environmental Services

Our Environmental Services Group has the expertise to aid in the National Environmental Policy Act (NEPA) process and development of NEPA documentation. Read more about Environmental Services

Surveying and Mapping

HDL offers in-house, state-of-the-art survey services to support our engineering services. Read more about Surveying and Mapping

Construction Administration and Testing

The HDL team provides construction services that meet safety and quality expectations, establish clear lines of communication, and stay on schedule/budget. Read more about Construction Administration and Testing

Hydrology and Hydraulics

HDL’s hydrologic and hydraulic engineers provide fish passage design, H&H analyses, flood control, erosion mitigation, and more. Read more about Hydrology and Hydraulics

Why Choose Us x

Our People

We are an agile, multidiscipline Alaska engineering company that offers personalized, responsive service from seasoned professionals who care about you and your project.

Our Innovation

We leverage innovative design and current technology to deliver cost-effective results. We use intuition, creativity, and experience to complete our projects.

Our Values

Values such as integrity, teamwork, quality, respect, and positivity formed the foundation of HDL and guide us still today.

Work With Us
At HDL, our employees are our number one asset. Our Alaska engineering company offers a fun and flexible environment. Our work with established clients allows employees to work on exciting projects every day.

We value our employees and are committed to offering a welcoming work environment that will challenge you to be your best.

Join Our Team
HDL Employee

Our History x



An Idea Is Born

In 2000, Scott Hattenburg and Lorie Dilley hatched a plan to form their own engineering company – what would soon become Hattenburg & Dilley, LLC.



Doors Open

The first offices for Hattenburg & Dilley are established in Anchorage and Palmer, and the firm officially opens for business.



Linnell Joins the Firm

Dennis Linnell was looking to take the next step and own an engineering firm. After meeting with Scott and Lorie, the opportunity to buy into Hattenburg & Dilley was extended to Dennis. In April 2002, Dennis officially joined the firm, and the company was renamed Hattenburg Dilley & Linnell, LLC.
Our Story