What are the Pennsylvania Single Face Concrete Barrier Specifications?

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The Pennsylvania Department of Transportation outlines specifications regarding the proper dimensions for cast-in-place and precast single face concrete barriers, including general notes, section view details and more.

Pennsylvania Single Face Concrete Barrier General Notes

The Pennsylvania Department of Transportation’s general instructions are as follows:

  1. Provide single face concrete barriers meeting the requirements of Publication 408, Section 623.

a. Minimum concrete Class: AA, except use Class AAA concrete for precast barriers.

  1. Provide precast single face concrete barriers supplied by an approved manufacturer. Modifications or deviations from the standard require the submission of shop drawings for review.

  2. Provide barrier-mount or reflector unit delineators, as indicated on RC-57M.

  3. Provide reinforcements for single face concrete barriers.

  4. Provide end transitions or impact attenuating devises as indicated on RC-57M.

  5. Round or chamfer all edges with a radius of 1”, except as shown.

  6. All dimensions are in millimeters unless otherwise noted.

  7. Fabricate reinforcement bars according to PENNDOT Bridge Construction Standard, 8C-736M.

  8. To limit lateral displacement of portable barriers when used in work zones, provide a rough finish at the bottom surface. Before the concrete has initially set, finish the bottom surface with a stiff wire broom or special template in a longitudinal direction to produce scores that are approximately 1/8” in depth.

Note: either all metric or all English values must be used on the plans. Metric and English values shown may not be mixed.

Pennsylvania Single Face Concrete Barrier Specifications

Pennsylvania barriers should conform to the following specifications according to the Pennsylvania Department of Transportation:

Orthographic View of a Typical Barrier Section

According to the PENNDOT orthographic view, barriers measure 30’-0” long (max.) and 12’-0” long (min.). They include typical delineator devises on the top and side of the barrier. Provide barrier-mount or reflector unit delineators, as indicated on RC-57M.

Orthographic View of a Typical End Transition

According to the PENNDOT orthographic view, it is required to provide end transitions or impact attenuating devises as indicated on RC-57M.
Section A-A and B-B

According to the PENNDOT Section A-A and B-B view, barriers measure 10” wide at the top. They include a 10” R. The barrier’s upper slope measures 2-3/8” wide, and the barrier’s bottom slope measures 4-4/8” wide. The break point is 7” from the ground line.

Section B-B includes these same measurements, however the image is inverted so that when the two sections are placed side by side, they are symmetrical in nature.

This blog post is an interpretation of specifications by the Pennsylvania Department of Transportation. Please consult with Pennsylvania DOT's most recent requirements for definitive information.

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