Skagit Surveyors & Engineers
806 Metcalf Street | Sedro-Woolley, WA 98284 | 360.855.2121

Our History

Founded on integrity and dedication to customer service since the late 1970's, Skagit Surveyors & Engineers is the area's leading Land Surveying, Civil Engineering & Land Use Planning firm. Whether you are just needing land use advice, or are looking to start a project, allow us to use our skills, experience, and work ethic to assist you. Call Skagit Surveyors & Engineers today!

Our Mission

  • Provide the highest quality professional planning, surveying, and engineering services
  • Ensure client satisfaction
  • Maintain positive working relationships with our clients, subconsultants, and contractors
  • Bring innovative designs and ideas to all projects, being mindful of final construction costs
  • Provide efficiency in terms of costs for services rendered
  • Do what it takes to get the job done right the first time and on time

Our Staff

Our staff members have years of experience across a varying field of disciplines. When out in the field, they conduct themselves with the utmost professionalism and are supported in the office by a team of qualified professionals to ensure client satisfaction.

Louis H. Requa, PLS – Principal
  • Bachelor of Science, Forest Resources (Forest Engineering)
  • University of Washington, 1973
  • Skagit Valley College
Professional Registrations
  • Professional Land Surveyor
  • State of Washington 1976
  • License No. 16224
  • State of Washington
  • Department of Licensing

Louis has over 42 years of land surveying experience. His work began with his military service in the United States Army. He was an instructor at the U.S. Army Engineer School at Fort Belvoir, Virginia, where he taught topographic surveying and spent the year of 1969 in Vietnam as a topographic surveyor. Following his service in the Army, Louis worked for the Department of Natural Resources as a Forest Engineer, Land Surveyor, and Forester. In 1979, Louis joined Crossman & Associates as a Professional Land Surveyor.

Following his time at Crossman, Louis, along with his partner John L. Abenroth, became the principals of Skagit Surveyors & Engineers. In the 38 years Louis has been with Skagit Surveyors, he has supervised all types of projects and land use issues. Since the late 1980's Louis has focused on client contacts, estimating, quality control and permit acquisition for projects of all types.

John Abenroth, PLS – Principal

Course work on a part time and evening basis from 1963 to 1974 at the following institutions:

  • University of Washington
  • Central Washington University
  • Skagit Valley College
  • Shoreline College
Professional Registrations
  • Professional Land Surveyor,
    State of Washington, 1978
    License No. 17651
  • State of Washington Dept. of Licensing
    Certificate of Notary Public

John has over 45 years of land surveying experience. His work experience began with the Washington State Department of Transportation, which started with an intensive three month study program at the University of Washington. While there, he focused on route surveying, design, and materials quality control. In his 12 years with the WSDOT, John worked in highway engineering on highway design and construction preparing plans as well as specifications and estimates.

Following his time with WSDOT, he was employed with McKay and Sposito, a surveying & engineering firm in Kennewick, Washington. In 1977, John joined Crossman & Associates, the predecessor to Skagit Surveyors. John, along with his partner Louis H. Requa, are the principals of Skagit Surveyors & Engineers. As a principal with Skagit, he has supervised all types of survey projects.

Marianne Manville–Ailles, AICP – Senior Planner
  • MA, Community and Regional Planning
  • University of British Columbia 1990
  • BA, Political Science / Public Affairs
  • University of Denver 1981

Marianna Manville-Ailes is a Senior Planner for Skagit Surveyors & Engineers. She has 26 years of experience in the public and private sector planning including: Land use planning, Land Development Consulting & Site Planning, Environmental analyses i, e, SEPA & NRPS, Land use analyses, Comprehensive Plan and Subarea Plan preparation, and more.

Mike Mellott – Associate Surveyor


Mike has been with Skagit Surveyors & Engineers since 1978. He works both in the office, and in the field, mainly as field survey party chief.

Affiliations & Service Groups

Our staff takes great pride in giving back to the community as well as being active in many groups and technical societies. Some of which include:

  • Skagit County Planning Commission
  • Burlington Planning Commission
  • SICBA (Skagit-Island County Builders Association)
  • EDASC (Economic Development Association of Skagit County)
  • ASCE (American Society of Civil Engineers)
  • NSPS (National Society of Professional Surveyors)
  • Sedro-Woolley Chamber of Commerce
  • ACEC (American Consulting Engineers Council)
  • WFPS (Washington Federation of Professional Surveyors)
  • LSAW (Land Surveyors Association of Washington)
  • APA (American Planning Association)
  • AICP (American Institute of Certified Planners)
  • Sedro-Woolley Rotary
  • Wildcat Steelhead Club
  • The American Legion Post, 43
  • Vietnam Veterans of America Chapter 1109