Barricading

Version 1 – 31/08/2012

Excavations Elevating WorkPlatforms

Hot work at heights

Crane Lifts

Hazardous substance removal

Missing manhole coversand floor sections

When barricading should be used

When working on Manhole or pits

Barricading – Typical application and installation

Barricades shall be constructed of an approved type and will be used: • to provide a visual barrier; • to restrict access to unauthorized persons to worksites and restricted areas; • to restrict access to unauthorized persons to manholes and pits• to contain equipment and materials; • to prevent interaction with an identified hazard;

The type, design and construction of all barricading will follow a risk management approach. This should include an assessment of the nature and of the hazard, the likelihood and consequence of interaction as well as the potential impact to workers and the work environment as a result of its placement. Barricades should be installed in such a way as to eliminate the possibility of accidental entry into barricade zone.

Types: Soft Barricading – Hard Barricading – Manhole and Pits Barricading

Please Note: Hard barricading is the preferred option over soft barricading especially when the site with a fall or significant trip hazards is left unattended for a period of time in areas obviously dedicated to pedestrians. E.g. footpath

Barricading – General requirements

• Where a workplace hazard has been identified, signage, barricading and demarcation appropriate to the hazard will be installed;

• Ensure the barricading perimeter extends far enough out to prevent contact with the hazard;

• Position the barricading at a height so it is clearly visible;• Tie off barricading tape to posts so it is kept in position;• Posts should either be driven into the ground or fitted with a heavy

base;• Position safety signs around the barricade perimeter;• Position flashing warning lights around barricaded areas, such as

excavations, during hours of darkness;• Do not use damaged or torn equipment / material.

Soft BarricadingSoft barricading will be used to prevent entry of personnel and equipment as an immediate and short-term control. This barricade type will be used where risk assessment indicates that the associated risk is low. Soft barricades may be constructed of: • Scissor/Expanding Barricade • Flag type bunting • Retractable barrier bar• Plastic mesh barriers 900 mm high supported by capped star

pickets or other upright structures at maximum spacing of 3 metres

When soft barricades are installed, all significant fall / trip hazards must be controlled e.g. holes are back filled, pit cover installed etc.

Note: Where star pickets are to be used to support soft barricading a DBYD must first be obtained and potholing may be required.

Soft Barricading - Plastic Mesh Construction – Star Pickets

Equipment • Star Picket Driver (Rammer)• Star Picket Extractor (Post Lifter)• Star Picket 1650mm (H)• Plastic mesh barriers 900mm (H)• Star Picket Safety Caps• Duct-tape – to hold down the safety caps is required• PPE• Competent person• DBYD

Soft Barricading - Plastic Mesh Construction – Star Pickets

Star Picket Driver (Rammer) Star Picket Extractor (Post Lifter)

Star Picket with safety cap

Plastic mesh barriers 900mm

Duct-tape

Soft Barricading - Plastic Mesh Construction – Star Pickets

Installation 1. Clear any obstacles in the way of where the temporary barrier is to be

installed.2. Check DBYD plans to ensure no underground services are located where the

star picket barrier is to be installed. 3. Star pickets must not be inserted into the ground within 0.5metre of any

underground services, the verification assessment of such service may require potholing.

4. Do not use bent star pickets for temporary barriers.5. Mark ground where pickets to be installed at maximum spacing of 3 metres

apart.6. Place star picket rammer/driver over star picket and ram picket into ground.7. Picket should be driven at least 600mm into the ground.8. Fit safety caps onto star picket. Secure caps to top of picket to ensure they are

not removed inadvertently e.g. duct-type9. Secure mesh barrier, tape etc. to star pickets e.g. cable ties.10. Where mesh barrier is used it is to be overlapped by at least 150mm and

secured to prevent unauthorised persons from entering the protected area.

Soft Barricading - Plastic Mesh Construction – Star Pickets

Dismantling1. Salvage any material that can be used for future use.2. Remove mesh barrier from star pickets. Pick up cable ties that

have been used to secure barrier material.3. Use star picket extractor (Post Lifter) puller to remove the star

picket. Do not wriggle the star picket out of the ground as they will bend.

4. If a hole is left in the ground after removal of star picket it is to be filled, as it could pose a trip hazard.

5. Clean up all materials including off cuts.

Soft Barricading - Plastic Mesh Construction – Star Pickets

Sample of a plastic mesh barrier installed

Soft Barricading – Retractable / Expandable Barrier Bar Construction

Retractable / expandable barrier cone barsAn lightweight retractable or extendable cone bar for temporary barricading applications, that can be extended to app. 2 metresMade from tough ABS plastic with rubberized loops at each end and reflective bands for enhanced visibility. Reflective red with white or yellow with black.Ideal for temporary closures on work, footpaths or pedestrian zones.This cone bar can be used with 1000mm cones, 700mm cones or on T Top bollards.

Hard BarricadingHard barricading will be used to prevent entry of personnel and equipment to areas where a risk assessment indicates that physical protection of hard barricading is required for a short to medium period. The purpose of solid barricades is to provide a physical barrier to entry.Hard barricades may be constructed of:• Construction Site Barricade i.e. mesh or hoarding fence panels • Road Traffic Control barricade i.e. water filled plastic barricades • Free Standing Barricade

Solid barricades shall be erected by a competent person and accompanied with signs to communicate the hazard information and the contact details of the responsible supervisor.

Please Note: Hard barricading is the preferred option over soft barricading especially when the site with a fall or significant trip hazards is left unattended for a period of time in areas obviously dedicated to pedestrians. E.g. footpath

Equipment • Temporary Fencing Panels - Size 2100mm (H) x 2400mm (L)• Temporary Fencing Plastic Feet • Temporary Fencing Clamps• Temporary Fencing Stays – as required• Hand tools e.g. spanners and PPE• Competent person• Signs

Hard Barricading - Temporary Fencing Construction – Free Standing

Hard Barricading - Temporary Fencing Construction – Free Standing

Equipment • Temporary Fencing Panels - App size 2100mm (H) x 2400mm (L)• Temporary Fencing Plastic Feet • Temporary Fencing Clamps• Temporary Fencing Stays – as required• Spanners, PPE and competent person

Temporary Fencing Stays are designed to add extra stability to the fence, they use in areas where high winds

are likely or when something has been added to the fence system that will increase wind resistance.

Hard Barricading - Temporary Fencing Construction – Free Standing

Sample of a temporary fencing installed

Manhole and or Pits Barricading – Mandatory Actions

Please note when working on or near open manholes or pits the following minimum requirements apply:

1. Remove the required number of cover(s) and cross bar(s) fully erect manhole guards around the manhole or pit. 2. Make sure any covers are appropriately guarded.3. Make sure all pedestrian pathways are clearly delineated4. Make sure pedestrian hazard warning signs are in place.

Pedestrian ManagementRegardless of the type of barricade being installed, the provision of a pedestrian path shall be provided. The provision of the pedestrian path shall not create additional hazards or expose the public to trip hazards. If the site cannot be barricaded without exposing the public to these hazards it should be rectified to a point where pedestrians can safely pass without being exposed to increased risk.

Colour Codes and other barricading application

DANGER

This tape is used to barricade areas where a high risk hazard exists and where there is a definite risk of injury or harm if precautions are not taken.

• authorised to do so by your supervisor;

• fully aware are the nature of the hazard; and

• wearing the appropriate Personal Protective Equipment.

Use of red and white tape

You should only enter these areas if you are:

NOTE: An information tag must be tied to the tape and describe the reason for the barricading.

CAUTION - RISK OF DANGER

This tape should be used to warn people of a potential hazard.

Examples of when black and yellow barricading tapeshould be used include:

• around the area where a crane lift is being carried out;• underneath leaking elevated process pipes;• around the slewing radius of an Elevating WorkPlatform; and

• around the perimeter of minor excavations.

Use of black and yellow tape

NOTE: An information tag must be tied to the tape and describe the reason for the barricading.

Barricade webbing is made from rigid plastic sheeting or tear-proof fabric.

It provides a better visual barrier than tape and is often used for barricading large excavations.

Barricade Webbing

Steel post and rail barricading should be used when:• barricading needs to be above 2 metres high; or• a strong physical barrier is required.

This type of barricading is often used on scaffold or fixed platforms to provide fall protection.

A mid-rail or steel mesh in-fill is used to complete the barricade.

Mid-rail construction Steel mesh in-fill construction

Post and rail barricading