Installing Martello Bollards with Embedded Footings
Instructions for embedding Reliance Foundry’s Martello Bollards in a concrete substrate
Martello Bollards can be installed with an embedded mounting that provides a higher level of impact-resistance.
Designed with the same defensive architectural principles as historic Martello Towers, Martello Bollards are protective traffic guidance devices that prevent vehicles from entering pedestrian areas. They are generally installed on sidewalks their sloped edge facing the road to prevent vernicles from mounting the curb. For applications in which a high level of impact-resistance is required, Martello bollards can be embedded in the concrete surface of a sidewalk. In these applications, the Martello Bollard’s foundation will play a significant role in the amount of impact-resistance provided. It is important to note that Reliance Foundry’s installation recommendations serve only as general guidelines only. To ensure that a Martello Bollard will deliver an adequate level of impact resistance for specific applications, it is recommended that a professional engineer be consulted.
Required Installation Equipment
Chalk Line (optional)
Tamper-Resistant Hex Key (included)
Touch up paint (easily sourced at automotive stores)
Surface Preparation and Determining Layout
Note: Bollards should be left in their packaging until the exact moment of installation
Ensure that underground utility lines and pipes pose no risk:
Because it is necessary to penetrate the concrete surface when installing Martello Bollards, it advisable to check for water pipes, gas lines and underground wiring. A core drill, in advance of an x-ray, may be required. Taking the proper safety precautions can help to eliminate expensive “down time” and prevent accidents.
Study the site plans:
Site plans are generally created by the architect of the project. The architect will mark the intended location of each Martello Bollard on the plan. Ensure that the plan coincides with the site and familiarize yourself with the intended arrangement of the Martello Bollards.
Designate where each Martello Bollard will stand:
If the bollards are intended to be installed to create a uniform-looking straight line, many contractors find it beneficial to snap a chalk line. This will help determine the center-point of each Martello Bollard. The center-point of each bollard should be marked with chalk, spray-paint or a felt pen.
Create the Installation Hole:
Dig a hole to create a foundation for the Martello Bollard. The climate of the installation site and the substrate in which the Martello Bollard will sit will determine the size requirements of the installation hole. If a Martello Bollard is to be installed independently and (not under a shared concrete surface, like a side sidewalk or concrete meridian), the installation hole should be dug to the depth of the area’s frost line. Martello Bollards that are installed independently may also require an installation hole with a larger width. Each region’s frost line can be obtained from the local building inspection department. To determine the width requirement of your hole, you may wish to consult a professional engineer. The hole should extend a minimum of 4” from every side of the Martello Bollard.
Position the Martello Bollard in the installation Hole:
Position the bollard so that its entire footing will rest in the concrete substrate. Many installers have found it beneficial to use wood or brick to position the bollard so that top of the footing is flush with the intended concrete surface. Ensure that the sloped side of the Martello Bollard’s body faces the road.
Pouring the Concrete
Mix and Pour the Concrete:
Ensure that the proper ratio of water and concrete mix is used. The concrete should have a similar texture to mouldable clay. Begin to fill hole with concrete and, as the hole fills, direct and tamp the wet concrete into the Martello Bollard’s footing. Pour the concrete evenly and avoid disrupting the bollard. When the concrete reaches the surface of the installation hole, begin filling the body of the Martello Bollard. Continue to fill until the wet concrete reaches the portion of the bollard that contains reflective striping.
Allow the Concrete to Cure:
A lot of elements contribute to how fast concrete will cure in any given environment. Moisture in the air and cool temperatures can both significantly slow the process. It is generally recommended that a minimum of 2 -3 days wait should be given before regular use of the bollard is permitted.
Secure the Cap:
Once the concrete has cured, remove the bollard cap from its packaging and place it on the Martello Bollard. Then, secure the cap to the shaft by tightening the three stainless steel set screws with equal amounts of torque to ensure that the cap remains centered. Place the polyethylene caps (included) over the heads of the set screws to prevent rust.
Inspect the Installation:
At a distance, examine the plain of view. All Martello Bollards should appear to be perpendicular with the surface of the concrete and the sloped side of each bollard should face the roadway.
Check the Bollard for Any Signs of Surface Damage:
If the bollard was scratched or scraped during installation, it can be repaired with touch up paint, commonly found at automotive stores. Abrasions must be covered to avoid rust and ensure the proper life of the bollard.
Care and Maintenance
Martello Bollards are designed to deliver exceptional impact-resistance and an unsurpassed level of durability. They are finished with a resilient powder-coating and require little in terms of ongoing maintenance. The powder-coated finish will protect the bollard in typical North American climates; however, proper care and maintenance are required. In most environments, regularly-performed inspections and routine cleaning will ensure that a bollard retains its aesthetic appeal and does not become damaged by the elements. For detailed information on caring for or repairing Martello Bollards, please visit Reliance Foundry’s bollard care page.