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Horrocks Engineers offers a wide range of planning and environmental
management services to help clients meet their important, evolving needs.

We produce high-quality environmental documents, studies, permits, and resource impact analyses for the public and private sectors.

Environmental Resources (Built and Natural)

Our environmental professionals have resource expertise in everything from archaeology, biology, wetland sciences, historic architecture, noise analysis, hazardous waste identification and remediation, air quality, and more. We are confident we have the experience and expertise you need to make informed decisions for your project. We offer a comprehensive list of services for resources in both the natural and built environment:

  • Air Quality Analyses
  • Archaeological Resource Surveys
  • Biological Assessments
  • Community Impact Assessments
  • Environmental Justice Analyses
  • Environmental Site Assessments for Hazardous Materials
  • Farmland Impact Analyses
  • Floodplain Assessment
  • Habitat Restoration, Planning, and Mitigation
  • Historic Property Surveys
  • Noise Modeling, Analysis, and Abatement
  • Right-of-Way Easements and Acquisitions
  • Section 4(f)
  • Section 6(f)
  • Sensitive Species Studies
  • Threatened and Endangered Species Studies
  • Visual Impact Assessments
  • Water Quality Analyses
  • Wetland and Waters of the U.S. Delineations
  • Wetland Mitigation Plans


In the past 10 years, our NEPA experts have prepared over 150 environmental documents. We have done everything from large Environmental Impact Statements (EISs), to Environmental Assessments (EAs), Categorical Exclusions (CEs), State Environmental Studies (SESs), and other planning and feasibility documents. We are also experienced at ensuring those documents are Section 508 compliant. When you choose Horrocks, you can count on receiving the highest-quality, legally defensible documents on-time and in-scope.

Our clients save time and money because our environmental services are done in-house by a diverse team of resource specialists. We also offer exceptional in-house public outreach services to inform the public and get them excited for your project.


Environmental laws and regulations are ever changing. Our environmental professionals understand current permitting legislation and guidance so you can move forward with confidence on your project. We regularly coordinate with federal, state, and local agencies to help our clients obtain:

  • Section 404 of the Clean Water Act Permits
  • State Stream Alteration Permits
  • Conditional Letter of Map Revision (CLOMR) Floodplain Development Permits
  • Letter of Map Revision (LOMR) Floodplain Development Permits

We also do mitigation development and planning. Many of our past projects have involved assisting clients with wetland mitigation site development, noise walls, and other mitigation measures. We look forward to helping you find the balance between the needs of the communities your project will serve and the resources that may be impacted.

Environmental Services 

Air Quality Analyses & Modeling
Archaeology & Historic Architecture
Biological Evaluations & Assessments
Categorical Exclusions (CEs)
Environmental Assessments (EAs)
Environmental Impact Statements (EISs)
NEPA Compliance & Documentation
Phase I Environmental Site Assessments
Planning & Environmental Linkages (PEL)
Public Involvement/Stakeholder Outreach
Section 404 & Stream Alteration Permitting
Section 4(f) Evaluations
Section 6(f) Conversions
Traffic Noise Modeling & Noise Studies
Wetland & Aquatic Resource Delineations



Meet our Environmental team 

Stan Jorgensen

Utah Civil Env and Planning Dept Manager

Our Environmental Department is composed of engineers, scientists, planners, historians, and archaeologists who produce defensible reader-friendly documents with our in-house Visualization Department. We produce all levels of National Environmental Policy Act (NEPA) documents for federal, state, and local agencies in compliance with the Council on Environmental Quality (CEQ) guidelines.

Ryan Pitts

PG Planning & L/A

Group Manager 

Nicole Tolley

PG Environmental 

Group Manager 

Kurt Wald

Idaho Planning 

Dept Manager 

Contact us