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Who We Are

Scott Goodall, MS, PE


Scott has more than 10 years of civil design experience throughout Washington State. From project engineer to construction inspector, Scott takes a hands-on approach to engineering serving local agencies, private developers and contractors. His technical experience includes Washington State Department of Ecology stormwater permitting and design, residential and commercial site development, private water system improvements and public utility design.




Double Masters of Science, Civil Engineering and Wood Science

Oregon State University

Corvallis, Oregon


Bachelors of Science, Civil and Environmental Engineering

University of Washington

Seattle, Washington

Registration & Affiliation:

Professional Engineer - State of Washington No. 51077 (2013)

Professional Engineer - State of Montana No. PEL-PE-LIC 85145 (2022)

Professional References:

Rod Lamb

Design & Development Supervisor

Whatcom County Parks & Recreation


Mark Hollander


Hollander Investments



Craig Mueller

Project Manager

City of Bellingham

(360) 778-7900

DJ Williamson


Williamson Construction 



Martin Kjelstad, PE

Project Manager


Martin has a proven track record of managing teams of multi-disciplinary consultants during his 18-year tenure at the City of Bellingham as Project Engineer. Martin has managed multimillion-dollar Capital Improvement Projects for the City of Bellingham and is exceedingly familiar with municipal processes and expectations. Furthermore, Martin is trusted by the local tribes, NMFS, USFWS and WDFW. Martin will provide overall project management including accountability. He strives to complete tasks on-time, and under-budget, and of exceptional quality. 




Bachelor of Science in Civil Engineering (1976)

University of Alaska, Fairbanks, AK.


Registration & Affiliation:

Professional Engineer (P.E.)

1989 Washington License No. 26327


Scott Riggins, PLA

Project Manager and Landscape Architect


Scott has over 12 years of experience in site planning, lot layout, civil engineering design and landscape architecture. Scott is specialized in Low Impact Design (LID) stormwater management and bioremediation. This includes Civil Engineering and Landscape Architecture specifications and coordination between earthwork, utility installation, and landscape contractors. He has provided landscape planning and design of open spaces for residential, public schools, and commercial site development permit approval. Scott is an accomplished project manager and construction inspection.



Bachelor of Arts in Landscape Architecture 

University of Washington

Seattle, WA


Registration & Affiliation:

Professional Landscape Architect (PLA) - State of Washington License No. 1254

Derek Holzl, PE

Senior Project Manager


Mr.  Holzl has more than 40 years of construction management, construction contract administration, civil design, project management.   Derek worked as Project Engineer/Project Manager for the City of Bellingham for a huge variety of road, bridge, building, pump, water tank and other major capital projects.  This extensive experience means that Derek has been using WSDOT specifications for most of his life.  Derek is familiar with local requirements/standards and specializes in construction and Construction Management.  Mr.  Holzl has also provided “Extended Staff” design, review and CM services for years for the City of Nooksack, Lake Whatcom Water/Sewer District, the Nooksack and Upper Skagit Indian Tribes.    

Registration & Affiliation:

Professional Engineer (PE) - State of Washington License No. 23853


Sheila Kluck, MS, PE

Geotechnical Engineer


Ms. Kluck is a solutions-orientated engineer with 20+ years of experience in geotechnical and geological engineering and geology. She has demonstrated expertise in field management, project management, operations, and safety. Her expertise includes slope stability, directing diverse drilling and logging programs, geotechnical investigations, vibration damage assessments with seismograph monitoring and geotechnical structure inspections, foundation design, mining, and hydrogeology. Her slope stability experience includes mapping, modeling, monitoring, instrumentation, data interpretation, and slope design. She works collaboratively across disciplines and team-builds to optimize results.  She communicates concisely for informed decision making and advising stakeholders.



Bachelor of Arts in Geology

University of Montana

Missoula, MT


Registration & Affiliation:

Professional Engineer (P.E.) Washington License No. 57364

Professional Engineer (P.E.) Arizona License No. 54479

Professional Engineer (P.E.) Nevada License No. 016189

Professional Engineer (P.E.) Utah License No. 6158972-2202

Professional Geologist (P.G.) Utah License No.6158972-2250

MSHA Mine Safety and Health Administration Instructor 30 CFR 48: #M64174105

Taylor PIc.jpg

Taylor Russell, EIT

Design Engineer


Mr. Russell has over 5 years of experience in engineering design.  His design experience encompasses primarily public and private roadway, utility, residential and commercial development. He is well versed in AutoCAD Civil 3D software, stormwater management design and hydraulic modeling. 



University of Washington

Bachelor of Science in Civil and Environmental Engineering, June 2018
Related coursework: Construction Engineering, Structural Engineering, Surveying, Geotechnical
Engineering, Transportation Data Management, AutoCAD, Wetland and Urban Hydrology

Registration & Affiliation:

Engineer in Training (EIT) - State of Washington License No. 36712


Jackie Goodall

Office Manager


Jackie Goodall is the Office Manager at Impact Design. She has over 15 years combined experience in paralegal duties, banking, invoicing, HR and customer service. Jackie has worked in many collaborative team environments and has successfully managed both big and small teams of employees.

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