The Engineering Division of Engineering and Building Services Department works with the Public Works Department to maintain the City's infrastructure. This infrastructure includes storm drains for redirecting storm water, sewer lines for carrying wastewater to treatment plants, and the streets, alleys, and pavement which make up the City's traffic system.

To maintain the infrastructure Engineering manages the design and construction of City projects. Recent projects have included the Redondo Beach Performing Arts Center, Artesia Boulevard and Inglewood Avenue Improvements, Redondo Beach Municipal Pier Improvements and Residential Street Rehabilitation. Yet not all construction on the public right-of-way is done by the City. To ensure that the construction done by others is carried out properly and safely, Engineering also requires permits and inspections for all such construction.