Common
defects
The manhole getting old and rusting though.
Using the wrong type of manhole, such as using a light duty
one where lorries are going to be passing over it.
Common materials
used
metal manhole
cement
possible
limitations in materials
bent frames
missing components
using the wrong manhole.
Identify power
tools, tools and materials.
Shovel
Hard brush
Soft brush
Dustpan
Brick trowel
Tape measure
2 buckets
Broom
Bin
Manhole frame
Manhole
Cement
57 Dale Drive, Patcham,
Brighton BN1 8MY
TEL:
01273 506843 Mob: 07654323765 Fax: 0161 728 3172
METHOD
STATEMENT
Client: - Brighton
Council
Item:- Replacing a manhole
Date:- 04/10/2012
------------------------------oOo----------------------------
Description of the Works
This work requires us to replace
a manhole with a heavy duty manhole as the lightweight one is breaking due to
the regular pressure of large vehicles such as busses and lorries.
Method
1. Gain
any permits to work, and put signs up a week before to give people notice part
of London road will be closed off for us to work.
2. All operatives will wear at all times
necessary safety/protective clothing, eg overalls, safety hat, safety
glasses/goggles, gloves, safety boots and ear defenders.
3. Ensure that electrical power supply is
available and connect any required extension leads to the working area (we will
use a generator as cables dangling along London road will be a hazard).
4. The jackhammer will be needed for
probably a days work, we will hire it for two days just in case there is any
unforeseen situations. We will use it to dig through the tarmac/concrete and
get the lightweight manhole out.
5. We will then repair anything we may
have damaged and get the new heavy duty manhole in, we will pug it into
position leaving a small gap near the top of the cover.
6. Once the manhole is in place we will
lay tarmac up to the manhole making the top of the cover level with the road.
7. We will then leave it to go off/hard
and after that reopen the road for the general public to use again with a
stronger manhole capable of taking the heavy weight.
Control Measures
Personal protective equipment to
be used: Goggles, face mask, steel toe cap boots, overalls and hi-viz jackets
during digging out the road and basic PPE for all tasks, especially hi-viz
jacket as you need to be clearly visible to passing traffic.
Environmental.
Waste to be dumped in the back of
a truck and taken for disposal (included in quote)
Health and Safety & Associated Risks
Specific Hazards - Flying debris, Noise, Vibration
Hazardous Operations -
Risk Assessments provided
COSHH - Lime and asphalt
LIME:
Emergency Overview: Lime - Spar is an odorless
white or grayish-white material that ranges from pebble to
a granular powder. Contact can cause
irritation to eyes, skin, respiratory system, and
gastrointestinal tract. Lime - Spar
reacts vigorously with water, releasing heat which may
ignite combustible materials in
specific instances.
Potential Health Effects
Eyes: Contact can cause
severe irritation or burning of eyes, including permanent damage.
Skin: Contact can cause
severe irritation or burning of skin, especially in the presence of moisture.
Ingestion: This product can
cause severe irritation or burning of gastrointestinal tract if swallowed.
Inhalation: This product can
cause severe irritation of the respiratory system. Long-term exposure may
cause permanent damage. Lime - Spar is
not listed by MSHA, OSHA, or IARC as a
carcinogen. However, this product may
contain trace amounts of crystalline silica in the form
of quartz or crystobalite, which has
been classified by IARC as a Group I carcinogen to
humans when inhaled. Inhalation of
silica can also cause a chronic lung disorder, silicosis.
Medical
Conditions Aggravated
by Exposure: Contact may aggravate
disorders of the eyes, skin, gastrointestinal tract, and respiratory
system.
Potential
Environmental Effects: This material is
alkaline and if released into water or moist soil will cause an increase in pH.
Eyes: Immediately flush
eyes with generous amounts of water or eye wash solution if water is
unavailable. Pull back eyelid while
flushing to ensure that all lime dust has been washed
out. Seek medical attention promptly
if the initial flushing of the eyes does not remove the
irritant. Do not rub eyes.
Skin: Brush off or remove
as much dry lime as possible. Wash exposed area with large amounts
of water. If burned seriously or if
irritation persists, seek medical attention promptly.
Inhalation: Move victim to fresh
air. Seek medical attention. If breathing has stopped, give artificial
respiration.
Ingestion: Do not induce vomiting. Seek medical
attention immediately.
TARMAC:
Emergency
Overview
Regulatory
status : This material is considered hazardous by the
Occupational Safety and Health
Administration
(OSHA) Hazard Communication Standard (29 CFR 1910.1200).
Signal
Word : WARNING
Hazard
Summary :
Hot
material can cause severe eye and skin burns on contact. Hydrogen sulfide
from
heated material can accumulate in vapor space of tanks and containers.
Contact
between heated material and water can cause a violent eruption. Fumes
from
heated material can cause irritation to the eyes, skin, and respiratory system,
and
can increase susceptibility to sunburn.
Potential
Health Effects
Eyes : Hot material can cause burns to the eyes. Mists, vapors or fumes
from this
material
can cause eye irritation with tearing, redness, or a stinging or burning
feeling.
Skin : Hot material can cause burns to the skin. May cause skin
irritation with redness,
an
itching or burning feeling, and swelling of the skin. Exposure to sunlight and
to
asphalt vapors may amplify tendency for sunburns. Skin contact may cause
harmful
effects in other parts of the body.
Ingestion
: Contact with hot material may cause burns. If
swallowed at ambient
temperatures,
no significant adverse health effects are anticipated. If swallowed
in
large quantities, this material can obstruct the intestine.
Inhalation
: No significant adverse health effects are
expected to occur upon short-term exposure to this product at ambient
temperatures. Asphalt fumes have been
associated
with irritation of eyes nose and throat. Also, lower respiratory effects
have
been reported. Hydrogen sulfide (H2S) can evolve when this product is
stored
or handled at elevated temperatures. H2S can cause respiratory irritation
and
hypoxia. At low concentrations, H2S has an odor of rotten eggs. At higher
concentrations,
H2S odor is not apparent. DO NOT use odor as an indicator of
exposure
to H2S.
Target Organs : Eyes, Skin, Respiratory system, Kidney, Liver
57 Dale Drive, Patcham,
Brighton BN1 8MY
TEL:
01273 506843 Mob: 07654323765 Fax: 0161 728 3172
RISK
ANALYSIS SHEET
Activity /
Operation ~ Replacing lightweight manhole with a heavy duty manhole
Identifying Hazard ~ Flying
Debris / Noise / Vibration / Lime / Asphalt
**************************************************
RISK ASSESSMENT
SEVERITY LIKELIHOOD
High € Fatality, Major Injury or High € Certain or
Near Illness Causing
Long Term Certain to Occur.
Disability
Medium € Injury or
Illness Causing Medium
€ Reasonably Likely
Short
Term Disability. To
Occur
Low € Other Injury or Illness Low € Very Seldom or Never
occurs
**************************************************
S/L
RATIO
Plot
assessment of SEVERITY
L/M M/M H/M
H/H: Avoid
wherever possible.
L/L M/L H/L L/L: minimal risk.
******************************************************
SPECIFIC MEASURES REQUIRED TO MINIMISE THIS RISK
Protective equipment - Gloves / Goggles or safety
glasses / Dust Mask / Safety Shoes / Ear defenders.
A qualified
electrician must make all electrical connections. All test PAT Test certification is in place.
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