About Us

JM Davidson Engineering, D.P.C. was founded in 2015 by Jaime Davidson, PE.  Jaime recognized that there was a need for women-owned businesses in the civil engineering field in Western New York, and thus started JMD with the goal of providing the highest quality engineering and design services, while at the same time assisting municipal utilities, agencies, and consultants in meeting project staffing requirements.  Since then, JMD has grown to include multiple engineers, scientists, and construction inspectors with an array of expertise in various civil engineering related fields.

Michael Davidson, PE

Structural Engineer

Michael Terrana, PE

Transportation Engineer

Krista Greer, PE, CFM

Water Resources Engineer

Catherine Knab, PE, PMP

Water / Wastewater Engineer

Mark Kolbe

Business Manager

Angela Gardner

Wetland Scientist

Angela Hintz, PE

Water / Wastewater Engineer

Gerry Pietraszek

Construction Inspector

Tiphaine Ketch, PE, CFM

Water Resources Engineer

Taylor Brown, PE

Civil Engineer

Jon Rink, PE

Civil Engineer

Mike Raleigh

Resident Project Representative

Jim Raleigh, PE

Civil Engineer

Jaime Davidson, PE

As  JMD’s president and founder, Jaime has been with JMD since 2015.  She is a wastewater engineer by training with extensive experience in collection system analysis and design.  As our team’s leader, Jaime is responsible for guiding our firm’s strategy, growth, and culture.  She actively cultivates relationships with our clients and advocates for our firm and staff within the engineering community.

Jaime is an active member of the Water Environment Federation (WEF) and the Collection System Committee.  Additionally, she is an active member of the NY Water Environment Association (NYWEA) and the Western New York Stormwater Coalition Executive Committee.

  • MS Civil (Environmental) Engineering, University at Buffalo, 2001
  • BS Civil Engineering, University at Buffalo, 1999
  • Licensed Professional Engineer (NY)

Michael Davidson, PE

Mike Davidson is the lead structural engineer at JMD.  He made the move over to JMD in 2017 after almost two decades as a bridge design engineer and project manager at another local WNY engineering firm.  He has extensive bridge and culvert design, inspection, and assessment experience for many local and state agencies.  Lately he has extended his experience to inspection, rehabilitation, and modification of water and wastewater related auxiliary structures and tankage.

Mike is an active member and past president of the Association of Bridge Construction and Design (ABCD), Western New York Chapter.

  • MS Structural Engineering, University at Buffalo, 2000
  • BS Civil Engineering, University at Buffalo, 1999
  • Licensed Professional Engineer (NY, MI, PA)
  • FAA Certified Remote Pilot

Michael Terrana, PE

Mike Terrana is the lead transportation engineer at JMD.  He joined JMD in 2017 bringing his years of experience in railway, highway, and general civil engineering to the team.  He has been involved in both the design of projects as a consultant and construction of projects as a project manager and site superintendent for a Heavy Highway Contractor.  This, and his experience providing on-site construction inspection for numerous rail, roadway, and utility projects brings a unique skill set to our team.

Mike is an active member of the American Railway Engineering and Maintenance of Way Association (AREMA) and part of the Technical Committee 5 – Track. 

  • BS Civil Engineering, University at Buffalo, 2006
  • Licensed Professional Engineer (NY, IL, DE, PA, OH)
  • FAA Certified Remote Pilot

Krista Greer, PE, CFM

Krista is the lead water resources engineer at JMD.  Krista began her career in Maryland before moving back to New York in 2014.  She joined JMD in 2019 and represents the Rochester office for the firm.  Krista’s experience includes a wide variety of natural systems water projects including hydrologic/hydraulic modeling, bridge/culvert modeling, floodplain modeling, stream restoration, stormwater management, green infrastructure, erosion and sediment control, storm drainage, and floodplain management.  She also routinely conducts environmental screenings and prepares permit applications for projects impacting wetlands and waterways.  Krista is a Certified Floodplain Manager (CFM) and also has Level IV Rosgen training.

Krista is an active member of the New York State Floodplain and Stormwater Managers Association (NYSFSMA) and the Association for Bridge Construction and Design (ABCD), Western New York Chapter.

  • BS Civil Engineering, Pennsylvania State University, 2004
  • MS Civil Engineering, Virginia Tech University, 2006 
  • Licensed Professional Engineer (MD, NY, PA)

Catherine Knab, PE, PMP

Cati is a water / wastewater engineer, joining JMD in 2020.  Cati has years of experience, not only as a consultant, but also as an owner / operator and a construction inspector.  She is specialized in the areas of capital program management, water and wastewater treatment, water transmission and distribution, and construction administration and inspection.  She has extensive experience in all phases of project development and implementation, including preliminary scoping and permitting stages, detailed design, bidding, and construction administration and project close-out for both small and large scale infrastructure improvement projects.

Cati is an active member and the current president of the American Public Works Association (APWA), New York Chapter, Western Branch.

  • BS Civil Engineering, Worcester Polytechnic Institute, 2003
  • Licensed Professional Engineer (NY)

Catherine Goerss-Murphy, EIT

Catherine is a civil engineer who began her career with JMD in 2021.  As a non-traditional civil engineer, Catherine holds a law degree from the University of Pennsylvania and was a practicing attorney in the State of Pennsylvania prior to returning for her engineering degree. Catherine assisted JMD in the Summer of 2020 as a full time intern, developing her skills while participating in all facets of civil engineering and design, and now contributes as a project engineer.

Catherine is an active member of the American Society of Civil Engineers (ASCE), Buffalo Section. 

  • BS, summa cum laude, Civil Engineering, University at Buffalo, 2021 
  • AS, Engineering Science, SUNY Erie Community College, 2019
  • JD, University of Pennsylvania Law School, 2010
  • BA, Cognitive Science, University at Buffalo, 2005

Mark Kolbe

Mark Kolbe joined JMD full-time in 2022.  Mark serves as the business administrator for our team keeping our staff and business on track. Mark is responsible for billing, invoicing, general office management, licensing and certifications, IT, and in generally making the day-to-day operations at JMD carry on.  Mark allows our team of engineers to focus on engineering, while he is keeping his thumb on the needs of our business as it continues to grow and expand.   

Angela Gardner

Angela Gardner is a wetland scientist / conservation biologist who has been working with JMD since 2021.  She specializes in conducting wetland delineations, fish and wildlife habitat identification including vernal pools, rare, threatened and endangered species, fish and wildlife population studies and landscape impact analysis.  She has extensive experience in developing mitigation strategies for wetland, stream and wildlife impacts.  Angela is experienced in permitting, and conducting compliance monitoring nationwide, with particular expertise in facilitating development in highly-regulated regions, particularly the Northeast.  

Angela is an active member of the New York State Wetlands Forum.

  • BS, Natural Resources, Cornell University, 2003
  • AAS, Aquaculture and Aquatic Science, SUNY College of Agriculture and Technology at Morrisville, 2001
  • AAS, Natural Resources Conservation, SUNY College of Agriculture and Technology at Morrisville, 2000

Angela Hintz, PE

Angela joined JMD in 2022 after over twenty years as an engineer with a global consulting engineering firm.  Her experience lies primarily with water and wastewater treatment design ranging from small, local private projects to large municipal projects.  She has a wide range of project experience from collection systems, wastewater treatment, biosolids handling, as well as energy auditing and improvements.  She is an Association of Energy Engineers (AEE) Certified Energy Manager with specialized training in a range of energy analyses.

Angela is an active member of Water Environment Federation (WEF), NY Water Environment Association (NYWEA), Environmental and Water Resources Institute (EWRI), American Society of Civil Engineers (ASCE), and Rotary Club of Buffalo Sunrise and the Buffalo Sunrise Rotary Foundation.

  • M Env Eng, Environmental Engineering, University of Massachusetts at Amherst, 1999
  • BS Civil Engineering, University of Buffalo, 1997
  • Licensed Professional Engineer (NY)

Gerald Pietraszek

Gerry joined JMD in 2020 as a construction inspector, providing on-site representation for a variety of projects.  Gerry has a wide range of experience from his prior careers at NYSDOT and NYSDEC.  After retiring from NYSDEC, Gerry began working as a construction inspector, extending his career.  Since starting with JMD, he has provided oversight for multiple projects including wastewater treatment plant upgrades, highway improvement projects, and sanitary sewer/water/utility repair projects.

Gerry is currently the Safety Officer for the Town of Colden Fire Company.  In addition, he served as Chair of the Town of Colden Water District formation committee and continues to oversee the operation of the Water District.

  • BA, Geology, State University of New York at Buffalo
  • AAS, Civil Engineering, State University of New York at Farmingdale

Tiphaine Ketch, PE, CFM

Tiphaine is a Water Resource Engineer based out of Rochester, NY.  She has extensive experience in natural water system design including bridges/culverts, floodplain analyses, and dam modeling and inspection.   As a Certified Floodplain Manager (CFM), she is well versed in the FEMA floodplain regulations and requirements for projects located in flood zones and has prepared multiple No-Rise Analyses, Letters of Map Revision (LOMRs), and engineering reports to satisfy FEMA requirements.

Tiphaine is an active member of the New York State Floodplain and Stormwater Managers Association (NYSFSMA), the Association of State Floodplain Managers (ASFPM), and the Association of State Dam Safety Officials (ASDSO).

  • BS Civil Engineering, California State Polytechnic, 2001
  • MS Civil Engineering, Notre Dame, 2004 
  • Licensed Professional Engineer (NY, PA, ME)

Taylor Brown, PE

Taylor is a civil engineer with interests in stormwater management, wastewater treatment, site development, traffic calming, and streetscape improvements.  She has experience in all phases of development and implementation, including preliminary scoping, design, permitting, bidding, and construction administration for both small and large scale infrastructure improvement projects.

Taylor is an active member of the American Public Works Association (APWA), New York Chapter, Western Branch.  She serves on the Board for the Branch and is a National Young Professional Committee Region II representative.  She is also an active member of the New York Water Environment Association (NYWEA), serving as the Chair for the Young Professionals Committee.

  • BS Environmental Resources Engineering, SUNY College of Environmental Science & Forestry, 2017
  • Advanced Graduate Certificate Public Health, University at Buffalo School of Public Health and Health Professions, 2021
  • Licensed Professional Engineer (NY)

Jon Rink, PE

Jon Rink is a Project Engineer at JMD with experience working on a variety of private and public projects involving design and construction.  Jon’s interests lie primarily in waterline design and inspection, as well as public water treatment.  He has also spent a portion of his career as a construction inspector, gaining insightful knowledge for the implementation and feasibility of construction projects.  His experience in both design and construction are valuable to be able to see projects through to completion.

  • BS Environmental Engineering, University at Buffalo, 2016
  • Licensed Professional Engineer (NY)
  • NYS 4-hr DEC Erosion and Sediment Control Training

Mike Raleigh

Mike has a varied background and has worked in law, real estate, urban food production and composting as a founding member of Farmer Pirates Compost LLC, and various construction enterprises during his career, including Construction Site Supervisor for Habitat for Humanity Buffalo.  He joined JMD as a Construction Inspector in 2023 and has been working on several wastewater treatment plant upgrade projects in Erie County.

  • JD, University at Buffalo Law School, 2011
  • BA, Environmental Design, University of Buffalo, 2007

Jim Raleigh

Jim has spent his long career working on design, construction contract management, and resident field engineering for water and wastewater treatment, hazardous waste remediation, and solid waste management facilities. As a licensed civil engineer who excels in the resident project representative role, his experience includes constructibility reviews; preparation of budgets, schedules, contracts, and change orders and modifications for design and construction; preparation and enactment of project execution and QA/QC plans; responsibility for key technical and administrative decisions; and management of multiple discipline project teams.

  • BS, Civil Engineering, University at Buffalo, 1978
  • BS, Physics, SUNY Oneota, 1975
  • Licenses Professional Engineer (NY)