A2 Requirements 20240604.pdf

DEPARTMENT OF THE AIR FORCE

131ST CIVIL ENGINEER SQUADRON

29 SHERMAN AVENUE

JEFFERSON BARRACKS ANGS, ST. LOUIS, MISSOURI

04 June 2024

DESCRIPTION OF THE SUPPLIES/SERVICES REQUIRED

The 131st Civil Engineer Squadron is requesting to purchase concrete barriers to enhance the physical security of Jefferson Barracks Air National Guard Station. This request will be fulfilled by purchasing concrete barriers that comply with UFC 4-022-02 Selection and Application of Vehicle Barriers.

An excerpt from the UFC, regarding concrete Jersey barriers, is attached. Qty 75 barriers will be purchased. Each barrier should adhere to the design requirements in the UFC – approximately 32” tall, 6” wide at the top, 2’ wide at the bottom, and 10’ in length. Each barrier should have the ability to be connected with connection rods and steel loops (see Figure 2. Detail A: Connection Rod Assembly). Arrangement of steel loops does not need to be the exact same as Figure 1.

Connection Rod Assembly (Typ.) but will need allow each barrier to be connected by the same connection method. Contractor shall provide two individual quotes, one for new barriers and one for used barriers. Each quote also needs to include a quantity of hardware to connect the barriers in a layout that includes half of the barriers installed on each side of the entry road.

The barriers will be delivered to 21 Center Drive, Jefferson Barracks ANGS, St. Louis, MO, 63125. Each barrier will need to be able to be unloaded with a fork-truck (provided by the customer). 131CES will unload and place barriers.

Figure 1. Connection Rod Assembly

Figure 2. Connection Rod Assembly (Typ.)

UFC 4-022-02

8 June 2009

Change 1, 9 August 2010

6-2.2 Concrete Median.

6-2.2.1 Description.

A concrete highway median (also known as a Jersey Bounce or Jersey Barrier) can be effectively used as a perimeter vehicle barrier, but only if the medians are securely fastened together. It can either be erected from pre-cast tongue-and-groove sections or cast in place with special concrete-forming equipment. It is especially effective for impact angles less than 30 degrees and is appropriate for locations where access roads are parallel to the barrier. Complete penetration is possible with light vehicles; however, damage to the vehicle will be extensive. If the potential impact angle from threat vehicle is expected to exceed 30 degrees, anchor barrier to foundation. These barriers should be set in a concrete foundation, as shown in Figure 6-15. Also barriers need to be securely connected with a minimum of one 3/4 inch steel cable tying them together to be effective.

6-2.2.2 Testing.

A non-reinforced, anchored, concrete median barrier was tested with a 4,000-lb (1,818-

kg) vehicle at 50 mph (81 kph). The vehicle penetrated the barrier 20 ft (6 m). The vehicle had extensive front-end damage, and the occupants would have received serious to critical injuries. During the impact, a section of the barrier was broken and overturned. These barriers should be set in a concrete foundation, as shown in Figure 6-15, for applications where the impact angle exceeds 30 degrees. The barriers need to be securely tied together to be effective.

UFC 4-022-02

8 June 2009

Change 1, 9 August 2010

Figure 6-15 Precast Non-Reinforced Concrete Median

6-2.3 King Tut Blocks.

6-2.3.1 Description.

Non-reinforced concrete blocks can be used effectively as vehicle barriers or to slow the speed of oncoming vehicles, as shown in Figure 6-16. The placement of the blocks is shown in Table 6-7. These blocks can be cast in place and should be anchored to the ground so that movement or removal is difficult. Both Figure 6-16 and Table 6-7 are for