• Our Firm




    Senior transportation professional brings transportation planning expertise to existing and new clients.

    Hg Consult is pleased to announce that Brenda J. Durbahn, MA has joined the firm as Senior Transportation Planner. Brenda is based in Waterloo, Iowa.

    Brenda brings to the firm a long and successful history in serving transportation clients throughout the Midwest, especially in her home state of Iowa. As a respected transportation planner, over her 25-year career, Brenda has successfully completed planning studies for a variety of transportation improvement projects including, urban streets, major highway corridors, bridge, and freight projects. Throughout her career Brenda has worked with multidisciplinary teams in successfully delivering numerous NEPA corridor planning studies. Recently, she completed an Environmental Assessment and Section 4(f) Statement for a road diet project through an historic community located on the Mississippi River in eastern Iowa.

    “With the addition of Brenda, Hg adds critical transportation and environmental planning expertise to our growing firm.” said Earl Harrison Jr., PE, Hg Consult President. “Not only will she help us continue to provide valuable service to the Iowa DOT, we are planning to include her on several of our existing transportation planning projects in Texas, Colorado, and Missouri. We couldn’t be more excited to have her on board.”

    Brenda holds a Master of Arts from the University of Northern Iowa, and earned a Bachelor of Science in ecology from Iowa State University.


    Being a NCAA D1 wrestler and graduating with a Civil Engineering degree requires dedication and hard work.

    Hg Consult is pleased to announce that Patrick Rhoads, EI, has joined the firm as a civil engineer. Patrick’s hire supplements Hg’s continued growth in roadway design, GIS, construction inspection, and transportation planning. As a May 2016 graduate from the University of Iowa, Patrick obtained a B.S.E. in Civil Engineering, an Engineering Intern Certificate (formerly E.I.T.), all while becoming a NCAA D1 national qualifier for the most dominate collegiate wrestling program in the nation.

    Patrick’s strong dedication to working hard came from his youth wrestling club mentor, Hg Consult’s President, Earl Harrison, Jr. Since childhood, Earl has provided Patrick inspiration to excel in math and science, including hiring Patrick as a summer intern during his sophomore year in High School. “I have known and respected Patrick since he was a junior wrestler and I jumped at the chance to bring someone of his caliber into our firm. We look forward to Patrick’s long and successful career at Hg Consult,” said Earl Harrison Jr., Hg Consult President.

    Throughout college, Patrick was able to gain experience in construction field inspection with an internship at McClure Engineering Co. and gained invaluable technical experience in GIS with the Urban & Regional Planning Department at Iowa. With the guidance of Hg’s engineering and planning staff, Patrick plans to gain his P.E. Licensure to further Hg’s outreach in the Midwest in just under 4 years.


    HG Consult is pleased to announce that Jerry A. Mugg, PE has joined the firm as Senior Project Manager and Vice President. Jerry is based in Denver, Colorado.

    Jerry brings to the firm a long and successful history in serving transportation clients throughout the Midwest and in Colorado. As a respected transportation infrastructure leader, over his 30-year career, Jerry has successfully overseen planning, design and construction services for highway, bridge, tollroad, railway and transit projects. Throughout his career Jerry has led multidisciplinary teams in successfully delivering numerous multimodal corridor planning studies, toll feasibility studies and program management assignments. Most recently, he provided advisory services to CDOT for the High-Performance Transportation Enterprise – CDOT’s office for financing and delivering major P3 and design-build projects.

    “With the addition of Jerry to our firm’s leadership, we can further expand our transportation planning and infrastructure management services to our Midwest clients,” said Earl Harrison Jr., PE, HG Consult President. “Furthermore, Jerry’s addition allows us to expand our services into the Colorado marketplace – a region experiencing tremendous economic growth and transportation infrastructure needs.”

    Prior to joining HG Consult, Jerry led and oversaw multi-state consultant service practices for two industry-leading firms, including Colorado and the central Midwest.

    Jerry is a registered professional engineer in Colorado and Kansas, and earned a Bachelor of Science in Civil Engineering degree from Missouri University of Science and Technology.


    Burns & McDonnell presented the owners of Hg Consult with an award as part of their Community of Inclusion Awards Ceremony. This awards ceremony is an annual event that Burns & McDonnell sponsors as part of their Diversity Week activities. The award highlighted Hg Consult's successful participation with Burns & McDonnell on several transportation related projects and Burns & McDonnell outreach with Hg Consult to help our firm grow and prosper.

    "Thanks to Ben Biller and Mike Debacker from Burns & McDonnell for this wonderful award. Burns & McDonnell has been a big part of the success of Hg Consult, starting with one of our first projects on US 69 at 96th Street. We look forward to continued success with Burns & McDonnell in the future."

- Earl Harrison, Hg Consult founder and principal owner

  • Colorado


      Denver, Colorado - Minority and Small Business Certifications

      As a full-service engineering and planning consulting firm, our success has been built on our core values of Trusted Leadership, Quality Work, Practical Approach and Open Communications. Along with our commitment to our employees, these values have endured and are essential to our continued growth. While these qualities are critical to the value we provide, we recognize the additional value we can provide to our clients and partners through our minority-owned status.

      To provide the full value of our firm in our new Colorado office, we are pleased to announce that Hg Consult has been granted the following certifications:

      • Colorado Department of Transportation:
      - Disadvantaged Business Enterprise
      - Emerging Small Business

      • Regional Transportation District:
      - Disadvantaged Business Enterprise
      - Small Business Enterprise

      • City and County of Denver:
      - Small Business Enterprise


      Denver, Colorado - Minority and Small Business Certifications

      Hg Consult was recently selected to provide engineering services to the City and County of Denver’s Department of Public Works. The three year on-call contract will range from transportation planning to full roadway and structural design. This win marks Hg Consult’s first win in the Colorado market. Thanks to our partners Dave Evans & Associates, Wilson & Company, and Parsons Transportation Group.

      “Thanks to Jerry’s hard work and strong regional relationships, Hg Consult has an opportunity to make a difference in how people move around in Denver. We’re excited about the opportunity and are ready to get to work.” – Earl Harrison, Hg President

      Please join me in congratulating Jerry Mugg and his team for this important win. Feel free to reach out to Jerry at for more information.


      It was recently announced that the Scenic Highway of Legends, located in southeastern Colorado, is now part of the National Scenic Byway System. This designation is an honor and befits its unique qualities. Featuring the majestic Spanish Peaks, where gold-seeking conquistadors, European settlers, and Native Americans once roomed, the byway provides access for sightseeing, tourism, and outdoor recreation. The byway route (US 160 and CO 12) links Trinidad, La Veta, and Walsenburg.

      Last Fall, Hg Consult completed a Planning and Environmental Linkages (PEL) Study for the byway. This study, sponsored by Colorado Department of Transportation and the South Central Council of Governments, created a new vision for the byway consisting of highway safety, recreational trail, and scenic and historic amenity improvements. Developed in concert with local communities, residents, and resource agencies, renewed enthusiasm was generated. This momentum resulted in an all-volunteer effort, led by the Byway Board, for the National System application and resulting designation. Debra Malone, the Board Director, states:

      “The Hg Team involved our byway communities every step of the way during the 18 months of the PEL Study. They all understood that our 82-mile byway is an economic lifeline for our small byway communities here in the Spanish Peaks region. We were all struck by their generosity as they shared data that they were generating, and with their dedication of providing a constant feedback loop of information to the public.”

      This new designation is a tribute to the beautiful landscapes and culture of the region and the dedication of its residents. Combined with the PEL Study, it further positions the byway for future funding and investment. In addition to providing exploration opportunities, the state’s byways are an important asset for economic development. It is estimated the Scenic Highway of Legends provides nearly $180 million in economic benefit to the Spanish Peaks Country.

      Read Article
  • Interstate 70


      "I had the sad responsibility to tell him that “Grow America” would mean nothing for Missouri, since we will be unable to match even the current federal funding unless action is taken this legislative session by the Missouri General Assembly,” says Stephen Miller of MODOT. READ MORE

      Sen. Doug Libla knows it’s not easy to pass a tax increase in Missouri. But he says there’s one big reason that lawmakers should support his deal to raise Missouri’s fuel tax to fund roads projects. The reason? Evidence. READ MORE

      Just about everyone in Missouri politics agrees that the state badly needs an infusion of cash to fix thousands of miles of crumbling highways and scores of increasingly rickety bridges. READ MORE

      Built in the 1950s and ’60s with a 20-year-life expectancy, the four-lane I-70 highway is crumbling beneath its surface and clogged with traffic as it carries more than 30,000 vehicles a day on many of its rural stretches, requiring more frequent repaving. READ MORE

      Online Poll: Are you willing to pay higher taxes at the gas pump for better roads and highways? READ MORE

      Should Missouri keep tolls in the mix as a way to improve, expand I-70? READ MORE

      Transportation chief says I-70 is 'completely falling apart' and 'used up' READ MORE
  • Streetcar


      Kansas City To Become The Largest 'Smart City' In North America READ MORE

      KC picks streetcar colors - some say they’re classy, others say boring READ MORE
  • Fairfax Bridge

  • Gateway Interchange

HG Consult

KANSAS - Kansas City

MISSOURI - Kansas City

MISSOURI - St. Louis

MISSOURI - St. Joseph

TEXAS - Austin


IOWA - Waterloo