Our leadership team has over 150 years of combined experience in transportation engineering. They are, above all else, communicators and problem solvers.

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Dennis Haglan, PE

President | Founding Partner | Principal Engineer

Dennis co-founded DHA and serves as our President and Chief Executive Officer. Dennis specializes in project finance and innovative delivery methods on major transportation projects. Formerly with Caltrans, Dennis has served as Structures Local Assistance Engineer, Structures Representative, and Resident Engineer on more than 50 bridge projects throughout his 26 year career.

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Craig Drake, PE

Chief Financial Officer | Founding Partner | Principal Engineer

Craig co-founded DHA and serves as our Chief Financial Officer. Craig has a diverse background in bridge and highway development processes, from project conception through construction. He specializes in bridge seismic retrofit and retrofit vs. replacement projects. Formerly with Caltrans, Craig has completed more than 50 bridge projects throughout his 31 year career.

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Kevin Ross, PE

Principal Engineer | Lead Bridge Engineer

Kevin leads our Bridge/Structures group. Formerly with Caltrans Division of Structures, Kevin served as a section leader, seismic specialist, contract manager, project engineer, district seismic design mentor, and design engineer. Kevin’s 25 years of experience include developing bridge advance planning studies, designing post-tensioned concrete structures, pre-cast structures, steel structures, and reinforced concrete structures.

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Matt Satow, PE

Principal Engineer | Lead Roadway Engineer

Matt leads our Transportation/Roadway group and also runs our Modesto office. Matt specializes in delivering complex transportation projects, including the facilitation of public outreach and stakeholder coordination. Matt brings over 20 years of experience in delivering transportation solutions for cities and counties throughout California. He has extensive experience in delivering projects involving railroads requiring agreements and approvals from the CPUC.

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Howard Zabell, PE

Principal Engineer | Construction Manager

Howard serves as our construction manager and resident engineer for transportation projects, specializing in the design and construction of large heavy-highway construction projects, as well as temporary structures, estimating, value engineering, constructability reviews, and scheduling. Formerly with Caltrans’ Division of Structures Construction, Howard brings 23 years of diverse work experience on over 50 transportation projects in the roles of a Contractors’ Project Manager and Construction Engineer, as well as an Owner’s Representative (Resident Engineer and Structure Representative). With his addition to DHA, Howard will lead and continue to expand our growing construction management service line.

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Jennifer Hildebrandt

Environmental Services Manager

Jennifer serves as our in-house Environmental Services Manager, specializing in providing documentation in compliance with CEQA, NEPA, the Endangered Species Act, the National Historic Preservation Act, and the National Transportation Act. Jennifer’s experience has included all aspects of project management, including authoring environmental documentation and technical studies, subcontractor management, managing project budgets and schedules, and coordinating with state, federal, and local agencies. In addition, Jennifer’s expertise includes an in-depth knowledge of Caltrans guidelines and templates.