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New Gate Installation at Two Yosemite Entrances

Yosemite National Park » New Gate Installation at Two Yosemite Entrances » Document List

JUSTIFICATION:
There is a current and certain future need for a permanent gate at the park's south boundary on Highway 41 and at the park's north boundary on Highway 120. There have historically been several situations, each lasting for several weeks, where a hard closure of the park was ordered by park management. Existing gates do not provide the necessary security limiting vehicular access to all park properties when the entrance stations are not staffed.

SCOPE:
The installation of a gate at the South Boundary will require ground disturbance for two posts on each side of the road measuring 2-feet in diameter and 4-feet deep for the concrete encasements for the posts (four posts total). The steel gate will be composed of 4-inch round tubing, both sides of the gate will measure 12 - 14 feet wide by 4-feet tall (the two sides of the gate will meet in the middle for a total span of 24 - 28 feet across the roadway). Snow stake extensions will be attached to the posts measuring an additional 3 feet above the gate (7-feet total height). It will be painted Wosky Brown. This gate will be located approximately 0.6 miles south of the existing entrance station on Highway 41.

The gate at the Big Oak Flat entrance will require ground disturbance for two posts on each side of the road measuring 2-feet in diameter and 4-feet deep for the concrete encasements for the posts (four posts total). The steel gate will be composed of 4-inch round tubing, both sides of the gate will measure 12 - 14 feet wide by 4-feet tall (the two sides of the gate will meet in the middle for a total span of 24 - 28 feet across the roadway). Snow stake extensions will be attached to the posts measuring an additional 3 feet above the gate (7-feet total height). It will be painted Wosky Brown. This gate will be located approximately 0.1 miles north of the existing entrance station on Highway 120.

No tree or vegetation removal is necessary.

Boulders may be installed on side(s) to prevent circumvention.

Existing gates will be left in place for other closures that don't require unmanned restricted access in both directions.