Since the firm’s inception, W.G. Zimmerman Engineering, Inc. has successfully provided; traffic/transportation, water and wastewater engineering services as well as transportation planning, traffic impact and environmental reviews, and traffic signal coordination for local agencies. These agencies include: City of Mission Viejo, City of Seal Beach, City of Newport Beach, City of Fountain Valley, City of Brea, City of Santa Ana, City of Costa Mesa, City of Orange, Orange County Transportation Authority, and the City of Long Beach. In addition, our firm has provided engineering services to FHWA and FTA as well as the Jet Propulsion Laboratory.  

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