The Lilac Road Bridge, officially the Walter F. Maxwell Memorial Bridge, is a reinforced concrete arch bridge in Bonsall, California, built in 1978 at a cost of $1.5 million (equivalent to $ million in ). It carries Lilac Road over Interstate 15 (I-15). Its main span is , with a total length of . It was designed by Fred G. Michaels and John Suwada, with architecture consulting by William Wells. The bridge is officially named after civil engineer Walter F. Maxwell, who helped build over 570 bridges and structures across Southern California.
This bridge is one of the two overcrossings in San Diego County with this arch design, the other being the Eastgate Mall Bridge. When traveling northbound on I-15 it is the high bridge before exit 46/State Route 76.
References
External links "About San Diego: The Story Behind The Bridge Over Interstate 15", Ken Kramer's About San Diego, @KPBS on YouTube, uploaded August 17, 2021