Rev.9-27-96
HERBICIDE TREATMENT
624-M-024
The Standard Specifications are revised as follows:
SECTION 624, BEGIN LINE 1, INSERT AS FOLLOWS:
SECTION 624 -- HERBICIDE TREATMENT
624.01 Description.
This work shall consist of furnishing and applying a herbicide on
both sides of roadways and on turfed medians between pavements
for the routes shown on the plans.
The operation will require one
application of herbicide, to be placed on the dates and in the
areas shown on the plans. The hectares (acreage) of the area to
be sprayed has been predetermined by the Department. The
Contractor shall examine the area in detail to determine the type
of equipment required for specified applications.
MATERIALS
624.02 Materials.
The herbicide to be applied shall consist of a specified
formulation. Such mixture shall consist of one unit of the
specified formulation. A pre-mixed formula containing specified
minimum acid equivalents may be used. The rate of application
shall be one unit of mixture per 0.4 hectare (1 acre) for the
formulation specified.
Tests of the herbicide material
will not be required. However, a type B certification in
accordance with 916.01 and 916.02(b) shall be provided. All
herbicide material to be used shall be in accordance with the
requirements of the Indiana Herbicide Law. Such material shall be
registered with the Indiana State Chemist located at the Purdue
University Department of Biochemistry, West Lafayette. All
containers shall be factory sealed when delivered to the project
site. A specimen label and a Material Safety Data sheet for each
chemical shall be present on the spray truck at all times.
CONSTRUCTION REQUIREMENTS
624.03 Equipment.
All equipment shall be subject to approval by a Department
licensed pesticide applicator prior to the use of such equipment.
All spray equipment shall be in good working order during the
contract time. Leaky valves and hose connections will not be
permitted. On-pavement spraying equipment shall be pneumatic
tired units. The truck shall be equipped with a computerized
injection system rate monitoring system that uses a radar speed
sensing unit. An instruction manual for the computer shall be in
the truck at all times.
The Contractor shall provide OSHA
approved safety goggles, respirators, and rubber gloves for
employees. The safety equipment shall be used during the mixing
of the herbicide formulation and may be worn during the
application. The Contractor's employees shall not smoke
cigarettes or other tobacco products while mixing or spraying
herbicide. An OSHA approved hard hat shall be worn during the
spray operation by the applicator if the applicator is outside
the vehicle passenger compartment.
624.04 Maintenance of
Traffic. All slow moving equipment operated on the
pavement or shoulder shall be equipped with a flashing arrow sign
type A as set out in 913.13. Reserve power, minimum operation
time, and photo controlled transfer relay will not be required.
The lights shall flash in the direction in which traffic is to
proceed. The flashing arrow sign shall be installed on the rear
of the equipment with the bottom edge of the sign located at 2.5
m (8 ft) above the pavement.
Protection of the traveling public
and of the herbicide crew shall be provided during the herbicide
operation through the use of traffic control devices in
accordance with 107.12. Flaggers shall be provided for traffic
control as necessary. Each vehicle in the herbicide operation
shall display the slow moving vehicle emblems when operating at
speeds of 40 km/h (25 mph) or less. The slow moving vehicle
emblems shall be removed when the vehicles are operating at
speeds greater than 40 km/h (25 mph).
All amber flashing warning lights
and amber strobe lights mounted on the vehicles used in the
herbicide operation shall be in accordance with 801.06, with the
minimum of one flashing amber warning light or amber strobe light
which is visible in all directions.
The herbicide application vehicle
shall have a rear facing type A or type C flashing arrow sign, an
amber flashing warning light mounted near the center of the truck
bed, and an amber strobe light mounted on each rear corner of the
truck bed. The amber flashing warning light and amber strobe
light shall be mounted on retractable supports and shall be
operated at a maximum height of 3.7 m (12 ft) above the pavement
unless otherwise directed.
A rear escort vehicle shall follow
the herbicide application vehicle at a distance of 300 m (1,000
ft) and may operate in the travel lane or on the paved shoulder.
The rear escort vehicle shall be
equipped with a rear facing flashing arrow sign type C mounted
above a rear facing WS21-5-A "Shoulder Work" sign.
624.05 Herbicide
Application. The herbicide formulation shall be
sprayed on the full widths of medians of 18 m (60 ft) or less.
The herbicide shall also be applied on outside shoulders, inside
shoulders of medians wider than 18 m (60 ft), and shoulders
adjacent to ramps to a width of 8 m (25 ft). The application will
not require off-road application equipment.
Vegetation around guardrail,
bridge cones, sign posts, delineators, and areas inaccessible to
mowing equipment shall be sprayed. Slopes which are too steep or
otherwise inaccessible to mounted spray equipment shall be
treated with a handgun mounted on a hose of sufficient length to
assure acceptable coverage. Deciduous trees, evergreen trees,
shrubs planted or maintained by the State, and desirable
volunteer woody vegetation growing on the roadside shall not be
sprayed. Areas designated as Prairie Restoration Areas shall not
be sprayed.
Damage shall be prevented to
residential planting, vegetable or flower gardens, susceptible
rose hedges or similar landscape material, farm crops, or other
desirable broadleaf plants adjacent to the roadside. All damage
caused by the spraying operation shall be satisfactorily
repaired.
Proper speed of the equipment
making the application will be determined by the rate of
discharge and area of coverage. However, equipment speed shall
not exceed 32 km/h (20 mph). All work shall be performed between
the hours of 6:00 a.m. and 6:00 p.m., or as otherwise directed.
The Engineer will seal all
partially filled or otherwise unsealed containers of chemicals
upon completion of daily operations. Work shall not be done
unless the Engineer is present. Effort shall be made to stop work
at least one hour before rain. Work shall not resume until all
free water has stopped dripping from the plants. Work shall also
be suspended if the wind velocity is high enough to carry the
spray outside of the target area. The Contractor shall supply all
labor, equipment, materials, and supervision to properly carry
out the work. The Contractor shall have proof of holding a valid
Indiana Pesticide Operator's license. At least one person with a
valid Indiana Pesticide Applicator's License shall be present
with each piece of spray equipment at all times.
624.06 Method of
Measurement. This work will be measured by the hectare
(acre). The areas for measurement will be those specified and
tested.
624.07 Basis of Payment.
This work will be paid for at the contract unit price per hectare
(acre) for herbicide treatment.
Approximately 15 days following
the completion of the application, an inspection of the work will
be made to determine areas that were skipped, missed, or
otherwise did not receive adequate treatment to acquire results
comparable with the rate of kill obtained in the overall spraying
operations. Both the Department and the Contractor shall be
represented on all inspection teams. These areas will be
identified by the Engineer. Respraying shall be performed within
14 calendar days after notification.
Payment will be made under:
Pay Item -----------------------Metric
Pay Unit Symbol (English Pay Unit Symbol)
Herbicide Treatment . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .ha
(ACRE)
The costs of furnishing and
applying all materials, labor, equipment, and necessary
incidentals shall be included in the cost of this work. Repair to
damaged desirable vegetation or respraying of missed or
inadequately sprayed areas shall be done with no additional
payment.
624.08 Liquidated
Damages. Liquidated damages, if applicable, will be
charged in accordance with 108.08. Such charges will apply to
each application. The charges for each application will be based
on the total contract price.
Final acceptance will be made when
it has been determined that respraying will not be required, or
when all required respraying is completed.