CRA Infrastructure & Engineering, Inc. (CRA I&E), formerly known as R&D Engineering, Inc., is a wholly owned subsidiary of Conestoga-Rovers & Associates. Based in downtown Buffalo, New York, the office of CRA I&E is home to a staff of over 45 professionals dedicated to the planning, design, and construction of municipal infrastructure and water and wastewater treatment facilities and processes.

CRA I&E has been servicing the needs of public and private utilities and municipalities for more than 20 years. CRA I&E has built its reputation, and literally its business, by delivering high quality, cost-effective engineering services in a responsive manner to cities, towns, villages, and water and wastewater utilities throughout the northeastern United States and Canada.

Our environmental and infrastructure engineering "horsepower" makes our firm ideally suited to support the needs of our clients. 

We have local staff depth and redundancy to support virtually all the engineering needs of any project, including the following service areas:

• Chemical Engineering
• Civil/Sanitary Engineering
• Electrical/Power Engineering
• Instrumentation and Controls
• Environmental Engineering
• Mechanical Engineering
• Structural Engineering
• Water and Wastewater Treatment Process Design
• Licensed Water and Wastewater Treatment Plant
   Operators
• Cost Estimating
• Construction Management
• Resident Construction Inspection
• Environmental Site Assessments
• Municipal Planning
• Grant Writing
• GIS Mapping
• CADD design/drafting

In addition to our engineering services, CRA maintains a full-time staff of construction professionals to provide contract administration services including bid phase assistance, submittal review, dispute resolution, and construction inspection.  The firm's construction personnel are experienced in the areas of water and sewer construction, highway and bridge construction, and treatment facilities construction.