FERTILIZING AND AGRIC ULTURAL LIMING 234.02 mulch. If mulching loose, sandy soil, do n ot exceed the mulch application rate. If mulching slopes, operate the tiller along the contour of the slope.
3.Wood Cellulose Fiber Mulch Complete seed, fertilizer, lime, and other erosion control items before applying cellulose material. Apply wood cel lulose fiber mulch at a rate of at least 2,000 lb./acre [2,241 kg./ha] of air -dry material. Disperse, suspend, and apply the material using water at the rate of 3.3 gal to 1 lb [27.5 L to 1 kg] of material. Apply the cellulose fiber to form a uniform lay er over the area indicated.
4.Excelsior Mat Place the mat so that the fibers are in contact with the soil and the netting is on the top. Place each strip of mat parallel to the direction of the flow of water.
233.05 Method of Measuremen T - Vacant
233.06 Basis of Payment
The Department will pay for each pay item at the contract unit price per the specified pay unit as follows: Pay Item: Pay Unit:
A.VEGETATIVE MULCHING Acre [Hectare]
B.EXCELSIOR MULCHING Acre [Hectare]
C.WOOD CELLULOSE FIBER Acre [Hectare]
D.EXCELSIOR MAT Square Yard [Square Meter]
234.01 Description
This work consists of providing and applying fertilizer or agricultural liming materials.
234.02 Materials
Provide materials in accordance with the following subsections: Material: Subsection: Fertilizer 735.06.A Agricultural Limestone 735.06.B Hydrated Lime 735.06.B
234.05 Fertilizing and Agricultural Liming
234.03 Equipment
Provide fertilizer and lime spreaders in accordance with the following:
A.Vertical Drop and Broadcast Type Use an agricultural -type spreader to apply dry fertilizer or lime. Ensure the machine uniformly distributes materials at the specified rates without damaging the fertilizer gr anules or lime.
B.Power Spray Provide equipment for distributing fertilizer or lime with water in accordance with Subsection 232.03.A “Hydraulic Seeder.”
234.04 Construction Methods
A.General Apply fertilizer and lime with vertical drop or broadcast spreader, unless otherwise indicated. Do not apply during weather that could result in waste, poor distribution, or off site application. Apply the fertilizer or lime before or during the ground preparation for perman ent seeding or sodding depending on the type of fertilizer required by the Contract. If directed by the Resident Engineer, re -fertilize repair work, at no additional cost to the Department.
B.Methods of Applying Fertilizer or Lime
1.Vertical Drop or Br oadcast Method Apply the fertilizer or lime uniformly at the specified rate with a spreader in accordance with Subsection 234.03, “Equipment. ” Ensure the equipment does not rut or damage the prepared surface.
2.Power Spray Method Apply the fertilizer or lime in water at the specified rate. Ensure the maximum quantity of fertilizer placed in the spray tank with 1,000 gal [3.8 kL] of water does not exceed the quantity specified for 2 acre [0.8 ha] of seeding or sodding . Also ensure that the maximum amount of lime placed in the spray tank with 1,000 gal [3.8 kL] of water does not exceed the quantity specified for 1 acre [0.4 ha] of seeding or sodding. If less than 1,000 gal [3.8 kL] of water is loaded into the spray tank, reduce the quantity of fertilizer or lime loaded and the area treated per load in proportion to the water. Do not allow fertilizer or lime to enter streams or watercourses.
3.Hand Broadcast Method Apply the lime or fertilizer with hand -operated equi pment on areas inaccessible to large spreaders or power sprayers.
234.05 Method of Measuremen T
The Resident Engineer will measure materials for Fertilizing , Agricultural Limestone , and Agricultural Hydrated Lime with approved scales or use the manufacturer ’s guaranteed weights. If the Contractor provides a substitute grade of fertilizer, the Resident Engineer will calculate the equivalent weight of each MOWING 241.05 fertilizer element provided by the substitute grade per the area as would have been applied with the specified grade.
234.06 Basis of Payment
The Department will pay for each pay item at the contract unit price per the specified pay unit as follows: Pay Item: Pay Unit:
A.FERTILIZING Ton [Metric Ton]
B.AGRICULTURAL LIMESTONE Ton [Metric Ton]
C.AGRICULTURAL HYDRATED LIME Ton [Metric Ton] SECTION 241 MOWING
241.01 Description
This work consists of mowing or hand -cutting vegetation at locations directed by the Resident Engineer.
241.02 Materials — Vacant
241.03 Equi Pment
If possible, use mechanical equipment for mowing operations.
241.04 Construction Methods
Mow only when the ground is sufficiently firm to prevent rutting. Repair damage to the surface at no additional cost to the Department. Mow directed locations to a height of 3 in to 5 in [75 mm to 125 mm]. Remove litter, debris, and grass clippings to prevent smothering the grass or retarding growth. In locations inaccessible to mechanical mowers, use hand -cutting methods to provide a uniform appearance.
241.05 Method of Measuremen T
The Resident Engineer will measure the area of locations directed by the Resident Engineer and actually mowed.
Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 183–184 of 935.