NTM ENGINEERING - Key Persons


Chad J. Slothower

Job Titles:
  • CBSI Project Manager - Structures
As a project manager and senior engineer, Chad specializes in bridge design, bridge inspection, and project management. He as over 24 years of experience and has been responsible for designing bridges from single-span structures to multiple-span steel curved girder structures, and is proficient in PennDOT design software and the STAAD structural analysis program. Chad has performed fracture critical bridge inspections, field inspections, inspection report writing, and load ratings of numerous PennDOT single- to multi-span structures. He has overseen bridge projects with project management responsibilities, including serving as the client liaison and supervising internal staff. Chad also has been responsible for project scheduling, budgeting, and managing subconsultants. While completing his Master's degree at The Pennsylvania State University, Chad served as an instructor for both a surveying lab and a soil mechanics lab.

David Miraglia

Job Titles:
  • CBSI Project Manager - Structures
  • Professional Engineer
David is licensed Professional Engineer and Certified Bridge Safety Inspector who has provided structural design and bridge rating services for PennDOT projects for over 21 > Read more David is licensed Professional Engineer and Certified Bridge Safety Inspector who has provided structural design and bridge rating services for PennDOT projects for over 21 years. His background includes designing steel and concrete superstructures, substructures, and culverts, along with retaining walls and slope stabilization systems, and features complex analysis using STAAD, torsion analysis of pier caps, and 3D analysis of space frames. Mr. Miraglia has also performed shop drawing reviews, prepared cost estimates, and reviewed bridge designs, including Level 2 design reviews. In addition, he has completed building designs and damage inspections. For bridge inspection projects, Mr. Miraglia participates in field data collection, performs load ratings, and analyzes gusset plates. He has completed PennDOT's Instructor Certification Training.

Donna Newell - President

Job Titles:
  • President
  • Principal
Donna is the president of NTM Engineering. She offers over 28 years of civil engineering experience, specializing in hydrology and hydraulics (H&H). Her background includes > Read more Donna is the president of NTM Engineering. She offers over 28 years of civil engineering experience, specializing in hydrology and hydraulics (H&H). Her background includes designing hydraulic structures, performing H&H analysis and modeling, performing bridge scour analysis, environmental agency coordination, and policy development. Donna has provided quality assurance (QA) and quality control (QC) checks of HEC-RAS analyses for projects in Maine, Maryland, New Jersey, New York, Pennsylvania, Virginia, and West Virginia. She has also instructed collegiate level courses and professional development seminars on water resources related topics. She works extensively with PennDOT as a water resources consultant and instructional course developer and instructor. Donna also served as a panel member for the National Cooperative Highway Research Program Scour at Wide Piers and Long Skewed Piers project. She has managed H&H studies and scour investigations and secured waterway permits for numerous transportation, including an H&H study in Clinton County that represented the first use of 2D modeling with the Surface Water Modeling System (SMS) software on a PennDOT project. Donna earned her BS in Civil Engineering and MS in Environmental Engineering from The Pennsylvania State University. She is a professional engineer with licenses in Pennsylvania and New York, is a Certified Floodplain Manager, and a Certified PennDOT Instructor.

Jade L. Fertich

Job Titles:
  • CBSI Project Manager - Highway / Water Resources
  • Professional Engineer and Project Manager
Jade is a professional engineer and project manager with over 26 years of experience on numerous highway and bridge projects. He provides specialized expertise in > Read more Jade is a professional engineer and project manager with over 26 years of experience on numerous highway and bridge projects. He provides specialized expertise in hydrologic and hydraulic (H&H) design and waterway permitting of bridges and culverts, along with erosion and sediment pollution control design and highway geometric design. Jade is also skilled in developing non-structural construction plans, cost estimates, specifications, and schedules. His design background includes roadway drainage design, stormwater management design, traffic capacity analysis, traffic control design, traffic signal design, and signing/pavement marking design. Jade also has experience preparing right-of-way plans and performing bridge safety inspections. He is proficient utilizing a variety of engineering software including HEC-RAS, HY-8, WMS, Microstation, and InRoads.

Jeffrey MacKay

Job Titles:
  • Principal
  • CPESC Principal
  • Member of the Transportation Research Board
Jeff is the Principal-in-Charge of NTM's stormwater and highway group. He has over 20 years of engineering experience. His background features transportation and land development > Read more Jeff is the Principal-in-Charge of NTM's stormwater and highway group. He has over 20 years of engineering experience. His background features transportation and land development projects, with an emphasis on stormwater management, hydrologic and hydraulic (H&H) studies, and erosion and sediment (E&S) control. Jeff's water resources experience includes a combination of research, instruction, and engineering. He has completed H&H studies for Pennsylvania and New York transportation projects and provides PennDOT training on water resources topics within the context of design manual procedures. He is also the author of PennDOT's first comprehensive Stormwater Management Policy and assisted in developing PennDOT's Drainage Manual. At NTM, Jeff designs stormwater and drainage systems, conducts and reviews H&H studies, prepares and reviews erosion and sediment control plans, prepares NPDES and waterway permits, and advises PennDOT's Bureau of Project Delivery on related issues. Jeff is a member of the Transportation Research Board Hydrology, Hydraulics, and Water Quality Committee and is the lead developer/instructor for the School of Professional Engineering Exam Review Course on water resources/environmental. Jeff earned his BS and MS degrees in Civil Engineering from Drexel University. He holds professional engineering licenses in Pennsylvania, Maryland, and New York. He is also a Certified PennDOT Instructor and a Certified Professional in Erosion and Sediment Control.

John Newell

Job Titles:
  • CBSI Principal
John is the Principal-in-Charge of NTM's structure group. He has over 27 years of combined consulting engineering design, bridge inspection, and military design/build experience with > Read more John is the Principal-in-Charge of NTM's structure group. He has over 27 years of combined consulting engineering design, bridge inspection, and military design/build experience with 24 years on transportation and bridge replacement projects. His diverse background includes both civil and structural engineering designs for highway and bridge improvement projects. John also served as a structural research assistant and instructor at Penn State while completing his Master's degree. As a consulting engineer, John has served as project manager, highway design engineer, bridge design engineer, load rater, and bridge inspection team leader for a multitude of transportation projects. He has had numerous overseas engineering and construction management experiences with the U.S. Air Force and the Pennsylvania Air National Guard. As part of his final military overseas assignment, John was the Engineering Flight Commander in Camp Taji, Iraq, where he was responsible for squadron project designs and a base-wide construction QA program, which included K-span, masonry, and concrete building designs in addition to roadway and pavement designs for over $5 million in construction projects. John earned his BS and MEng degrees in Civil Engineering from The Pennsylvania State University, where he specialized in structural engineering and bridge design. John also has over 24 years of experience with the U.S. Army and Air Force through his services in Pennsylvania National Guard. As an Engineering Officer, he designed and managed construction projects in Alaska, Italy, Israel, Iraq, Qatar, and the United Arab Emirates. He received the Bronze Star in 2003 for his service in Operation Enduring Freedom. Lt. Col. Newell retired from the Pennsylvania Air National Guard in April 2012.

Katherine (Kate) Farrow

Job Titles:
  • Director of Environmental Services
Katherine (Kate) Farrow is the Director of Environmental Services. Kate holds a Bachelor of Science in Biology/Environmental Science and a Masters in Environmental Law from > Read more Katherine (Kate) Farrow is the Director of Environmental Services. Kate holds a Bachelor of Science in Biology/Environmental Science and a Masters in Environmental Law from Vermont Law School. She has over 30 years of experience in policy development, NEPA, permitting and public outreach for public infrastructure projects. Kate is also responsible for overseeing and/or conducting all environmental investigations related to transportation improvement projects. Her specialties include the NEPA/ Section 404 processes, needs analyses, agricultural resource investigations, and agency and public involvement.

Kevin Kozain

Job Titles:
  • Project Manager
  • Senior Engineer
  • CPESC Project Manager - Highway / Water Resources
Kevin serves as project manager and senior engineer on Pennsylvania transportation improvement projects. His responsibilities include but are not limited to designing erosion and sediment > Read more Kevin serves as project manager and senior engineer on Pennsylvania transportation improvement projects. His responsibilities include but are not limited to designing erosion and sediment (E&S) controls and drainage and stormwater mangement systems; performing NPDES and waterway permitting and hydrology and hydraulic (H&H) analysis; and developing traffic control and construction phasing plans. Mr. Kozain is proficient in performing designs according to PennDOT and PA DEP design standards and also offers a background in land development design and traffic engineering. Mr. Kozain has provided calculations, construction plans, and specifications for grading and drainage, erosion and sedimentation control, stormwater management, highway geometry, pavement, and signage and has coordinated project designs with clients, utility owners, and project review agencies.

Lino A. Magnelli

Job Titles:
  • Project Manager - Water Resources
Lino offers extensive project management and water resources engineering experience, having performed services across Pennsylvania for over 24 years. His professional career features PennDOT and Pennsylvania Turnpike Commission transportation projects, and he specializes in hydrologic and hydraulic (H&H) analysis and permitting related to highway and bridge designs. Lino is proficient utilizing various water resources engineering software, such as HEC-RAS, HY-8, SRH-2D/SMS, WMS, HEC-HMS, AutoCAD, and MicroStation. He is an instructor for PennDOT's H&H and permitting training courses and was part of the course development team for the H&H Professional Development Series. Lino has also completed project management training through PSMJ Resources. Lino offers extensive project management and water resources engineering experience, having performed services across Pennsylvania for over 24 years. His professional career features PennDOT and > Read more

Mark D. Bowen

Job Titles:
  • Senior Project Manager
  • Philadelphia Office Manager and Senior Project Manager - Water Resources
Mark is a senior project manager for NTM Engineering who offers over 26 years of engineering and 20+ years of construction experience. Mr. Bowen specializes in water resource engineering, site design, and municipal engineering. His skills include flood management, green stormwater infrastructure design, habitat restoration, and construction management.

Rachel Tereska

Job Titles:
  • Principal
Rachel is the Principal-in-Charge of NTM's H&H and permitting group and a civil engineer who specializes in water resources engineering. She offers over 21 years > Read more Rachel is the Principal-in-Charge of NTM's H&H and permitting group and a civil engineer who specializes in water resources engineering. She offers over 21 years of engineering experience, specializing in various disciplines, including performing hydrologic and hydraulic (H&H) studies, developing and presenting engineering technical training courses, and conducting collegiate research. As a designer and engineer, she has developed H&H reports for various PennDOT, NYSDOT, and MEDOT bridge and culvert replacement projects. Rachel conducted PennDOT's first 2D hydraulic model analysis using the Surface Water Modeling System (SMS) software, and she is proficient with HEC-RAS, HY-8, PEAKFQ, EFH-2, and WMS. She also presented on when 2D modeling is appropriate at the PennDOT H&H Coordinators' and Managers' Meetings and for the American Society of Highway Engineers and the Floodplain Management Association. Rachel earned her BS and MS degrees in Civil Engineering from The Pennsylvania State University. She holds professional engineering licenses in Pennsylvania and Delaware and is a PennDOT Certified Instructor. Rachel served as a research assistant at Penn State, where she studied stream restoration techniques and developed monitoring criteria for restoration sites.

Scott A. Brown

Job Titles:
  • Senior Project Manager
  • WRE State College Office Manager and Senior Project Manager - Water Resources
Scott is a senior project manager and our State College, PA, office manager. He has over 43 years of experience, specializing in urban drainage design, > Read more Scott is a senior project manager and our State College, PA, office manager. He has over 43 years of experience, specializing in urban drainage design, stormwater management, erosion and sedimentation control, and hydrologic and hydraulic analysis of river and watershed systems. Scott's background includes sustainable site design; utility design; waterway and environmental permitting, including NPDES stormwater and waterway encroachment permits; and municipal land development plan reviews for code compliance. Scott has developed and instructed numerous short courses and seminars on water resources topics, including several courses in PennDOT's Drainage Design series. As an instructor in the Civil and Environmental Engineering Department at The Pennsylvania State University, University Park, he taught courses in fluid mechanics, hydrology, and sustainable subdivision design. Scott's unique expertise and achievements were acknowledged by the American Academy of Water Resource Engineers in 2013 through award of the credential of Diplomate, Water Resource Engineer (D.WRE).

Susan Giannantonio

Job Titles:
  • Project Manager
  • CPESC Project Manager - Water Resources
Susan is a project manager who specializes in stormwater design, erosion and sediment control (E&S) design, NPDES permitting, highway design, and site development. Her water > Read more Susan is a project manager who specializes in stormwater design, erosion and sediment control (E&S) design, NPDES permitting, highway design, and site development. Her water resource experience includes drainage, stormwater and E&S designs and permitting for both public and private sector projects. Her highway and site development background includes the development of roadway alignments, site grading, traffic control, and pavement marking design development. She has experience with railroad grade crossing involvement, submitting PUC applications and acquiring local municipal zoning/land development approvals. As part of stormwater management and project work, she has developed landscaping and planting layouts incorporating both functional and aesthetic considerations. Susan has developed numerous Americans with Disabilities Act (ADA)-compliant curb ramp designs following requirements for PennDOT and the City of Philadelphia, co-presenting on the topic at an American Society of Highway Engineers technical session with PennDOT staff. As part of her work here at NTM, she has developed and taught short courses on stormwater management BMP practices for PennDOT.