Section 2: Fencing

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The procedures for fencing highway right-of-way are in the ROW Acquisition Manual. Where additional right-of-way is not required for construction of improvements of existing highways, right-of-way (property) fencing is the responsibility of the land owner.

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Control of Access Fencing on Freeways

Control of access fence should be erected whenever it is necessary to prohibit unrestricted access to the through lanes by pedestrians, animals and/or vehicles. The prohibition of access to the through lanes should be from private property, intercepted local roads and unauthorized crossings from frontage roads to the through lanes. Table 7-1 describes the types of fences that should be used for various conditions.

Department standard designs should be used where applicable. Specially designed fences may be necessary in certain areas where sandstorms and snowstorms occur and for other special conditions.

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Type of Fence

Usual Location

Urban and suburban areas

Chain link fence of 4 ft [1.2 m] usual height or 6 ft [1.8 m] height where necessary for control of pedestrians


Rural conditions where both large and small animals exist

Wire mesh fence with one or more strands of barbed wire

ROW line

Rural conditions where only large animals exist

Barbed wire fence with height of 4 ft or 5 ft [1.2 or 1.5 m]

ROW line

Control of Vehicles

Post and cable fence with closely spaced posts


1Where frontage roads are provided, control of access fence, when used, should be placed in the outer separation approximately equidistant between the mainlanes and frontage roads and at least 30 ft [9.0 m] from the edge of mainlane pavement. Where the control of access line is at the right-of-way line, the control of access fence may be located at the right-of-way line and will serve a dual function as a right-of-way fence.

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