Sustained health and safety of the human population requires that remediation systems be set up to take care of high levels of contaminants in water bodies, soil groundwater or other locations as deemed fit. Environmental construction companies are frequently called up on for this purpose.
Need for Bollard Installation
Execution of the remediation strategy may involve excavation, concrete coring, flat sawing, augering, moving in relevant equipment, and installation of the required machinery as necessary. Construction workers, engineers, supervisors and assistants as well are there on the site. Presence of all the additional gear and manpower on an environmental construction site necessitates setting up a control mechanism to regulate traffic – vehicular as well as pedestrian.
Bollards, used to indicate precaution, are the perfect device to guide traffic. In the shape of a short vertical post with a rounded top, bollards were traditionally used on piers in the bay area where ships dock for mooring.
Uses of Bollards
Since earlier times, use of bollards has broadened to –
• Mark construction sites.
• Cover pipes jutting out of the surface.
• Protect remediation systems.
• Define pathways.
• Specify parking spots.
• Demarcate lanes in streets.
• Enhance architectural features.
• Beautify a landscape.
Their various uses have given rise to equally diverse types of bollards. Temporary, permanent, security, barrier, decorative, concrete, collapsible, plastic and steel bollards are some types of bollards found in the market.
At times, the objective of installing a bollard may be confusing or obscure. Coloring the bollards and/or attaching appropriate road signs to them clarifies their aim thereby giving precise direction to the oncoming traffic.
Before installing a bollard, determine the layout of underground pipes and other utilities. This saves precious time which may otherwise be lost in mending accidently broken pipes, cables and gas pipelines.
Bollard installation begins by coring a hole in the concrete. Next, set the bollard's anchor in the cleared space. Alternatively, an insert may be used. Set the pole in concrete. After the concrete has cured, fix bollard case on top of the anchor and finally its cap. If necessary, paint the bollard.
Placement of bollards depends on their objective. Restrict all entry to the remediation site by placing bollards fairly close to each other. Support their installation with an appropriate warning sign. For general traffic regulation, placing bollards 4-5 feet apart from each other is sufficient. Bollards placed at this distance prohibit most vehicles but allow pedestrians, bikers, wheelchair users and individuals with strollers.