Quality People Providing Quality Solutions



B. Luke Jolley P.E.


Chief Engineer

Luke, President of HLE, Inc. and a registered Professional Civil Engineer in the States of Idaho, Wyoming, and Virginia. He oversees all Civil engineering projects in both HLE offices Blackfoot and Idaho Falls, and has worked in the Engineering and Land Surveying industry for well over 2 decades.

Luke’s project experience includes, transportation, geotechnical, public wells, public water systems, sanitary sewer systems, storm systems, land development, site design and roadway design, and working with the client for public bidding, awarding a contract, and construction oversight while coordinating with the client and contractor. 

Luke believes the foundation for successful projects is a detailed set of drawings and specifications at the beginning of the project.  Luke’s reputation for quality workmanship and detail is evident by the contractor’s response during construction.  He knows what items need to be completed for projects to be within budget and on time, and always takes full responsibility for the quality and timeliness of the consultant’s work, and for ensuring that adequate personnel and other resources are available for his projects.

Luke has earned the respect of clients by knowing that he works for them and is there to protect them and ensure that they get the very best project that they can get and that will continue to serve them as desired for many years.


Clint Jolley P.L.S.

Vice President

Survey Manager

Clint Jolley, PLS Idaho #15571, is a registered Professional Land Surveyor with over 2 decades of surveying and staking experience, Clint manages the construction survey operations, as well as overall day to day office management within HLE’s Idaho Falls office.

Clint holds a Bachelor of Science in Geomatics Technology from Idaho State University. His expertise includes, highway construction, boundary surveys, GPS surveys, route survey, land and construction surveys, subdivision staking, topographic and ALTA surveys.  He has experience using the latest Trimble GPS equipment, is always learning more and strives to stay current with the many growing industry technologies and trainings.

Clint has skillfully planned and managed many projects, within the State of Idaho, for private, State, and Government entities alike. With his education and determination to give only the best experience and serve those around him, his clients and associates feel confident knowing that he has the skills to manage projects through all processes of Land Development and Surveying seamlessly. Clint’s reputation for quality workmanship and detail is evident by his commitment to our clients, and their response. 

Chris Street P.L.S.


Survey Manager

Chris Street, PLS #12224, is the Survey Manager in HLE Inc.’s Blackfoot office. A graduate from Idaho State University, Chris has over twenty (20) years of survey experience in Idaho, Montana, and Wyoming.  As the Surveying Manager for HLE, Chris helps run all the aspects of day to day operations of the Surveying Department. Over the past 20 years, Chris has skillfully planned and managed many large-scale survey projects in his capacity as Survey Manager.  A sample of his broad range of skills includes the following:

  • Project Management
  • Topographic Surveying
  • Boundary Resolution and Surveying
  • Deed Research and Interpretation
  • GNSS/GPS Control Networks
  • Experience working with the State of Idaho
  • Job Standardization
  • Construction Staking


Kyle L. Jones, E.I.

Project Engineer

Kyle is currently a Project Engineer with a solid background in various areas of projects including site/civil, potable water supply, potable water distribution, wastewater collection, wastewater treatment, transportation planning/studies, roadway design, and master planning. Work experience in various trades including construction, engineering, electrical, quality control, and surveying enable him to work on a wide variety of projects knowledgeably and efficiently.

Kyle’s expertise ranges from information gathering, funding development, completion of facility/environmental studies, design engineering, and construction engineering.

He is very good at developing innovative and cost-effective solutions to complex problems and enjoys working closely with clients to produce quality projects in an efficient manner.


Gilmore Jenkins E.I.

Project Engineer

Gilmore is currently a Project Engineer with a background in various areas of projects including site/civil, potable water systems, storm and sanitary sewer systems and roadway networks.  He has broad experience in site grading and excavation, infrastructure installation, concrete placement, and building erection that add a practical knowledge base when working on a variety of projects.

Gilmore’s expertise includes civil site design and Conceptual Layouts, storm water retention design, storm and sanitary sewer network design, Preliminary traffic analysis, municipal code interpretation, product information research and construction administration.

He is very good at developing innovative and cost-effective solutions to complex problems and enjoys working closely with clients to produce quality projects in an efficient manner.


Scott V. Dressen E.I. 

Project Engineer

Scott graduated from Idaho State University in 2020 with a Bachelors of Science in Civil Engineering MCL with a specialization in geotechnical analysis. 

 Since starting with HLE, Inc. Scott has worked on projects including: geotechnical analysis, subdivision and site development design, traffic analysis, transportation and road network design, stormwater analysis and hydraulic system design, municipal underground utility design, and site landscape design.  

Before becoming a Civil Engineer, Scott spent 16 years as an Idaho nurseryman working in residential landscape design with a focus in plant selection, production, and diagnosis, as well as waterfall and pond system design and installation.

Anthony Koon P.E.

Project Engineer

Anthony “Tony” Koon, P.E. Idaho #10386 serves as the lead Structural Engineer for Harper-Leavitt Engineering (HLE) where he was worked since March 2015. Before that, he worked for Butler Engineering and Land Surveying which was purchased by HLE. Tony has a combined 28 years of related experience. Having both the project management and structure design experience allows him to execute projects smoothly from conceptual design through construction. 

Tony has gained valuable experience with project management and experience with client negotiations, site investigations, modeling, concept studies, sub-consultant coordination, preliminary engineering, structure design, specifications, and cost estimating. The foundation for successful projects is a detailed set of drawings and specifications at the beginning of the project. He is thorough in his designs and delivers a quality engineered product. 

    Spence Ward P.E.

Project Engineer

Spence is a Project Engineer with a background in various areas of projects including surface and ground water monitoring, water systems, wastewater systems and construction oversight.  With work experience in several trades, including street improvements design, residential development design, water engineering, irrigation modernization studies, drought resiliency work and water quantity and quality protection, Spence understands the importance of accomplishing essential projects in an efficient manner.

Spence’s project experience includes gathering information and reviewing engineering and facilities plan reports, managing multiple grants from a variety of funding agencies and coordinating owners, consultants, and contractors.

He excels at collaborating with others to achieve mutually agreed upon goals of a project.  Spence’s valuable interpersonal skills allow him to work well with the public, engineers, clients, contractors, consultants, and others to provide quality result

Marissa Gerdes

Testing & Inspection Manager


Renae Harding P.E.

Project Engineer

Renae has over 28 years in the industry and is experienced in communicating with both Contractors and Owners’ representatives to ensure project requirements are met.  
Having a knowledgeable and experienced Lead Inspector is vital to the success of a project. 
Renae’s previous experience included construction engineering and onsite inspections on numerous Federally funded projects through the Quality Control Management (QCM) role on FHWA, USACE, and FAA projects. 
QCM on Federally funded projects is not materials testing rather the QCM works closely with the Owner and Contractor to ensure compliance with contract documents.  

Andrew Ferguson P.E.

Project Engineer

Andrew Ferguson is responsible for geotechnical investigations and geotechnical designs as the Engineer of Record at Harper-Leavitt Engineering. Andrew has over 9 years of experience in geotechnical engineering throughout the United States and Canada and is professionally licensed in Idaho, Nevada, Washington, and Wyoming.   
Andrew’s areas of expertise include: Geohazard Mitigation, Foundation and Subsurface Investigations, Ground Improvement Methods, Geotechnical Design, and Geotechnical Construction. His areas of expert specialization include: 
• Compaction Grouting
• Slab Jacking
• Permeation Grouting
• Micro-piles
• Large Diameter Shafts
• Ground Anchors
• Soil Nails
• Reinforced Shotcrete
• Controlled Low Strength Materials
He has experience working in both private and government industries. Andrew’s ability to manage high level engineering while still having the flexibility required by changing soil conditions, makes him idea for large scale and crisis projects. He can translate ideas into a workable design while providing the best value to the client.