The storm destroyed hundreds of bridges and railroad trestles and 12,000 telegraph and telephone poles. Tunnels, trestles and bridges were nearly all built this way. In 1948, construction of trestles and other causeways started on Pirallahi and Oil Rocks. By 1838, roadbed and trestles had been built north of the city. Timber and iron trestles (i.e. bridges) were extensively used in the 19th century. The federal troops burned down the depot, cotton platforms and railroad trestles in 1865. The carriages sat astride the trestles like panniers. Few timber trestles survived into the 20th century. Its total length was including wooden approach trestles. The track is arranged in a figure-eight layout and mounted on wooden trestles. A few lose their footing while climbing down wall-ivy trestles. Years of disrepair on the trestles began to take its toll on the line. The legs of the iron trestles were also reinforced. Concrete train trestles now form a part of the GWP entrance. To the south of town are Camp Pendleton and Trestles surf beach.