The models, which cost the government up to $500,000 each, were spaced 30 feet (9.Companies have until October 26 to finish the models but Border Patrol spokesman Theron Francisco said the last two came into profile, with crews installing a corrugated metal surface on the eighth model on a dirt lot just a few steps from homes in Tijuana, Mexico.Features also should prevent the use of climbing aids such as grappling hooks, and the segments must be "aesthetically pleasing" when viewed from the US side. Another has a surface resembling an expensive brick driveway.1 meters) apart.As the crews worked, three men and two women, one carrying a large red purse, jumped a short rusted fence from Tijuana into the construction site and were immediately stopped by agents on horseback. Crews work on a border wall prototype near the border with Tijuana, Mexico. (Photo: AP) San Diego: The last two of eight prototypes for President Donald Trump&Wholesale xps foam39;s proposed border wall took shape Thursday at a construction site in San Diego.Bidding guidelines call for the prototypes to stand between 18 and 30 feet (5.Francisco said there have been four or five other illegal crossing attempts at the site since work began September 26.The prototypes form a tightly packed row of imposing concrete and metal panels, including one with sharp metal edges on top..Trump has asked Congress for USD 1. Slopes, thickness and curves vary."I'm sure they will engage in a lot of tests against these structures to see how they function with different challenges," US Rep Bob Goodlatte, a Virginia Republican who chairs the House Judiciary Committee, said Tuesday after touring the construction site.4 kilometers) in San Diego and build 60 miles (96 kilometers) in Texas' Rio Grande Valley, the busiest corridor for illegal crossings.5 and 9.There is currently 654 miles (1,052 kilometers) of single- layer fence on the 1,954-mile (3,143-kilometer) border, plus 51 miles (82 kilometers) of double- and triple-layer fence.6 billion to replace 14 miles of wall (22. The others are gray, tan or brown — in sync with the desert.1 meters) high and be able to withstand at least an hour of punishment from a sledgehammer, pickaxe, torch, chisel or battery-operated tools.The administration hasn't said how many winners it will pick or whether Trump will weigh in # himself.The contractors are erecting eight prototypes in San Diego. One has two shades of blue with white trim