Tioga Pass Entrance Station Increased Security

Yosemite National Park » Tioga Pass Entrance Station Increased Security » Document List

There are currently no security cameras, intrusion alarms, or duress alarms at the Tioga Pass Entrance station, where there have been two burglaries over the last two years. All of the entrance stations to Yosemite collect roughly 22 million dollars annually, and the other four gates have these security systems in place. The goal of this project is to install a system of cameras and alarms that provides security at Tioga Pass for the entrance station employees, park visitors, revenue collected and park assets.

The system itself will mirror those at the other entrance stations. The park will install the following: cameras on the interior and exterior of the kiosk, the office, and possibly one in the snag which has housed the webcam; an intrusion alarm system within the kiosk and the office; fiber connecting the kiosk to the office (current set-up is through a wireless bridge) laid in 2" conduit in a trench (18" deep x 66' long) with two pull boxes; three exterior lights on the office; and other associated equipment to safeguard and establish the system, switches, power supply, etc.

The trench will be different widths across the Tioga Road and through the meadow. Across the road (13'8" from curb to edge of pavement) it will be 16" wide to accommodate a backhoe with a 12" bucket, leaving enough room to compact the base course and repave afterwards. Through the meadow, the trench will be hand-dug (53' long x 8" wide) to minimize disturbance to the meadow. The trenching will be between the kiosk and the office and will dogleg into the rear corner where all utilities currently enter the building.

All cameras will be flush-mounted, dome style camera with a 4 1/2" base and a 3 1/2" height (to top of dome). The colors will match the paint of the mounted surface. Exposed conduit will be minimized.

The three lights will be on motion sensors and timers and will be directed light so as not to cause undue light pollution to the nightscape. The lights will allow the cameras to capture images at night which would otherwise be areas around the building shrouded in darkness, rendering the cameras ineffective at that time of day.

The park may also install the same type of camera in the snag north of the office which has held a webcam from the Scripps Institute. However, this is contingent upon there already being a data line from that tree to the office so that trenching an additional 50' for one camera is avoided. If installation of this camera involves an additional trench, this camera will not be a part of this project.