Harper-Leavitt Engineering Services

Harper-Leavitt Engineering, Inc. (HLE) is a full service engineering, surveying and materials testing consulting firm. Organized in 1969, HLE has served Southern Idaho, Montana, and Western Wyoming providing personal service to its clients. We have offices in Idaho Falls and Blackfoot, giving us the ability to quickly respond to client needs.

Planning and Land Development
Surveying and Mapping
Transportation
Geotechnical Engineering and Materials Testing

Planning and Land Development
Residential, Commercial, Educational, Industrial, Retail, Parks

HLE offers full services to those in the Land development Industry. We can start with feasibility studies. We work with the developer to rezone, subdivide, annex, and/or plat property - providing necessary survey services. If a real-estate transaction is necessary, we often provide an Environmental Site Assessment report.

To prepare for the design phase of a project we perform geotechnical soils investigations for foundation and pavement design.

Using the survey and geotechnical information, our engineers work together with the client or design team to develop the civil design drawings including: Site Layout, Utility Design, Storm Water and Site Grading Design. Often construction requires a Storm Water Pollution Prevention Plan (SWPPP) for the National Pollutant Discharge Elimination System (NPDES) permit. When construction begins, our staff begins construction management, materials testing, and inspection.

In conjunction with land development we also provide support and design services for the water resources, and transportation business sectors.

Pre-Acquisition Due Diligence
Phase I Environmental Site Assessments
Feasibility Studies & Entitlement
Land Use Master Planning & Design
Permit Processing & Tracking
Large-Scale Program Management
Geotechnical Engineering
Surveying & Mapping
Subdivisions

Site Engineering
Parking Layout
Stormwater Management and Sediment Control
Water Resource Modeling
Water Systems Networking
Water Distribution Systems
Well Design
Sanitary and Storm Sewer Design
Septic System Design
Roadway Planning & Design – Urban, Primary, Secondary

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Surveying and Mapping

HLE has one of the largest and most technically qualified surveying staffs in Idaho and the surrounding states. We pride ourselves in keeping up with the most recent technology, and incorporate the most efficient methods to insure speed and accuracy in producing a product. With licenses in Idaho, Wyoming, and Montana, HLE covers the region to remote counties, still providing efficiency and cost effectiveness.

Boundary
ALTA/ACSM Land Title Surveys
Topographic
Plats & Subdivisions
GIS Mapping
Global Positioning System (GPS)
Right-of-Way
Hydrologic
River Cross-Sections

Aerial Mapping Control
Cadastral
Highway Construction Survey
Route Surveys
Cellular Tower Sites
Gas and Pipeline
Construction Staking
As-Built Surveys
Oil and Gas Leases

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Transportation
Roads/Highways, Bridges, Airports, Transit Facilities, Walkways/Trails

Recognizing the importance of our area’s infrastructure, Harper- Leavitt Engineering provides quality professional transportation services. We have been responsible for the engineering of many miles of roadways and walkways along with the underground design of water, sewer, and storm sewer mains. We enjoy airport planning and design.

Transportation Planning
Public Involvement Campaigns
Roadway/Highway Engineering
Structural Engineering & Bridge Design
Bicycle/Pedestrian Planning & Design
Aviation Planning & Engineering

Surveying & Mapping
Drainage Design
Wetlands Mitigation & Permitting
Utility Coordination & Relocation
Construction Administration & Inspection

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Geotechnical Engineering and Materials Testing

The Geotechnical Engineer has a role in every project that involves earth structures, that requires a foundation in soil or rock, or that is constructed below the ground surface. Our engineers and technicians work to provide solid information for design, and follow up with inspection and testing to ensure that their recommendations have been accurately interpreted and implemented into construction.

HLE has a materials testing lab in the Idaho Falls office. We provide testing of soils, asphalt, and concrete through out the region. All testing conforms to ASTM standards.

Soils and Foundation Investigations, Recommendations, and Studies
In-House Soils and Materials Lab
Soil Sampling and Classification
Concrete Inspection and Testing
Nuclear Density Testing
Pavement/Roadway/Highway Testing
Landfill Design
Soil Stabilization & Classification
Laboratory Testing

Foundation Design
Retaining Wall Design
Standard Penetration Testing
Dynamic Cone Penetration for Pavement Design
Rock Coring
Groundwater Control/dewatering
Geotechnical Investigations

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