Lilac Road Bridge

The Lilac Road Bridge is a reinforced concrete arch bridge in Bonsall, California, built in 1978 at a cost of $1,500,000.^[1] Its main span is 455 feet (139 m), with a total length of 745 feet (227 m). It was designed by Fred G. Michaels and John Suwada, with architecture consulting by William Wells.^[1][2] This bridge is one of the two overcrossings in San Diego County with this unique arch design, the other being the Eastgate Mall Bridge.^[3][4] When traveling northbound on I-15 it is the noticeably high bridge before the SR 76 exit.

Lilac Road Bridge
Lilac Road Bridge (1980)
Coordinates	33°18′1.0″N 117°9′0.0″W
Locale	Bonsall, CA
Official name	Walter F. Maxwell Memorial Bridge
Characteristics
Material	Reinforced concrete
Total length	745 ft (227 m)
Longest span	455 ft (139 m)
History
Designer	Fred G. Michaels, John Suwada of Caltrans William Wells (consultant), Project Engineer Richard J.LeBeau of Caltrans
Construction cost	$1,500,000
Opened	1978
Location