What are Kentucky Temporary Concrete Barrier Specifications?

Tips & Advice

The Kentucky Department of Highways outlines specifications regarding the proper dimensions for temporary concrete barriers (wall type 9T), including general notes, elevation details and connector details.

Kentucky Temporary Concrete Barrier General Notes

The Kentucky Department of Highway’s general instructions are as follows:

  1. Lifting holes should be 2” in diameter; two lifting holes are required for each section; lifting holes should be formed with a 2” PVC pipe or equivalent.

  2. Barrier tapers should not be included in the base width.

  3. Shop drawings should be approved prior to the barrier’s manufacture.

  4. All information provided is based on 150 lbs./cubic feet.

  5. All steel reinforcements should be place with a clear distance of 2” (minimum) from the outside face of all walls, except where shown otherwise on the plans.

  6. Lifting bars are required to prevent spalling of the concrete around holes.

  7. Previous barrier walls manufactured according to standard drawing RBM-115 may still be used. Any new barrier wall type 9T should comply to the standards explained here.

  8. A permissible alternative for the pin and loop connector is a J-J hook manufactured by EASI-SET Industries of Midland, VA. See the manufacturer’s shop drawings for details on J-J hook connectors and recommended reinforcements. The barrier wall’s dimensions, shape, length and drain slot dimensions/locations should match this drawing’s current dimensions.

Kentucky Temporary Concrete Barrier Elevation Details

Temporary concrete barriers in Kentucky should conform to the following dimensions and include the following features, according to the KDOH elevation view specifications:

General Elevation Details

  • Length: 20’-0”

  • Height: 26”

  • Drain slots: 2” x 1’-8”

  • Distance between edge of panel and start of nearest drain slot: 6’-0”

  • Distance between top connector and top of panel (left side): 6”

  • Distance between top connector and bottom connector (left side): 1’-8”

  • Distance between top connector and top of panel (right side): 8”

  • Distance between top connector and bottom connector (right side): 1’-4”

  • (8) No. 5 bars that are 19’-6” long

  • (1) No. 6 bar that is 19’-1” long

  • (2) No. 4 “B” bars per side

  • (2) No. 6 bars that are 18’-3” long

Right Elevation View

  • Bottom width: 2’-3”

  • Vertical reveal: 3”

  • Top width: 9”

  • Bottom slope length: 10”

  • Top slope length: 1’-7”

  • A ¾” taper is permitted above the vertical reveal

Kentucky Temporary Concrete Barrier Connector Details

Temporary concrete barriers in Kentucky should conform to the following dimensions and include the following features, according to the KDOH connector detail specifications.

Top Connector

Top connectors should be hot dip galvanized after forming. A 6” long galvanized segment is required. The diameter of the connector should be ¾”, and the radius of the closed loop should be a minimum of 1-1/4”. The opening at the end of the connector should be ¾” wide. The connector should be 1’-0” in length.

Bottom Connector

Bottom connectors should be hot dip galvanized after forming. A 6” long galvanized segment is required. The diameter of the steel bar should be ¾”, and the radius of the closed loop should be a minimum of 1-1/4”. The opening at the end of the connector should be 9-1/4” wide. The connector should be 1’-8” in length.

Connector Pin

Connector pins should be 2’-1” tall and 1-1/4” in diameter. The bottom threading should be 3” in length (minimum), and the top threading should be 1-3/8” (minimum). A steel washer should be placed at the top and bottom of the connector pin. The top of the pin should be fixed with a 1-1/4” heavy hex nut.

Connector Pin Steel Washer

Steel washers should be ½” thick, 5” long and 2-1/4” high. The washer hole diameter should be 1-3/8” in diameter and centered on the washer.

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

BUY AND SELL WITH EIFFEL TRADING

Eiffel Trading’s online construction marketplace boasts a plethora of new and used precast concrete barrier wall types, including single slope barrier, jersey barrier, k-rail barrier, and more. Additionally, our equipment inventory includes sectional barges, foundation equipment, and much more.

All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.

Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.

If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.