4580 Memorial Drive

 St. Johnsbury, VT 05819


 (802) 748-5898


Timothy J. Ruggles, P.E.

Tim founded the company in 1992 after 15 years in the heavy highway construction industry including interstates, hydro and bridge construction, soil testing, project management and construction inspection.


As a principal engineer, Tim has provided professional engineering services to private, municipal and earthwork construction contractors.

Throughout the years Tim has planned, permitted, designed and overseen the construction of many projects including subdivisions, commercial site development, onsite wastewater systems, advanced onsite wastewater systems, temporary bridges, replacement bridges and box culverts, athletic field designs, road reconstruction, stormwater treatment, erosion control plans, earth/rock extraction projects.

Education: 1974-1975 VT Technical College, Randolph, VT A.S. Civil Engineering

Registrations: VT Reg. PE #6149 / ANR Designer Complaint, (formerly NH Reg. PE #8714 (retired)).

Nathan P. Sicard, P.E., CPESC

Nate joined the company in 2012.  Nate came to the to company with a background of water, wastewater and stormwater treatment planning, permitting, design and construction oversight.  Nate continues to provide these services along with contractor consulting services.  Nate leads the development of projects that Ruggles Engineering has developed since Tim started the company.  Nate also provides clients with needed preliminary engineering and environmental reports for project planning.  Nate is also a certified professional in erosion protection and sediment control.

Education: 2000-2004 University of Vermont, Burlington, VT, B.S. Civil Engineering

Registrations: VT Reg. PE #53831 / ANR Designer Complaint, CPESC #8020, Member ASCE.