"In Maple Canyon, you'll also experience two historic bridges. The Quince Street trestle, a wooden pedestrian-only footbridge, was built in 1905 to connect Bankers Hill with the streetcar that used to run along Fourth Avenue.
The First Avenue Bridge over Maple Canyon was built in 1931 & was completely assembled on the floor of its fabrication plant in Ohio before being dismantled and shipped to San Diego. It is a steel truss arch bridge spanning over Maple Canyon. It has been certified as a historic structure by the City of San Diego Historical Resources Board and the California Department of Parks and Recreation.
Make your way up Maple Canyon’s wide, smooth path, noting the mix of native sage-scrub/chaparral vegetation and the nonnative eucalyptus trees and palm trees. A particularly invasive member of the nonnative group is the bamboo-like giant cane, which has been the target of eradication efforts all over the city."
Personal Experience: If you only hike here once, go in the springtime! This place is popping off with flowers in April!
You'll come across a 2nd bridge which I believe is the The First Avenue Bridge.
Member's SectionMurphy's Ranch
Anza Borrego Desert
Cuyamaca State Park