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618.12 Basis of Payment The Department will pay for the accept ed quantities of
seeding at the Contract price per Unit for the method specified , which price shall be full compensation for furnishing and spreading seed, limestone, fert ilizer, and inoculant. The price shall also include any reseeding, watering, and maintenan ce necessary to meet the requirements of Section 618.10, Maintenance and Acceptance. When fertilizer is omitted from Seeding Method Number 1 or Numb er 2 at the direction of the Department, payment for such seeding will be 85 percent of the Contract price for the appropriate item. When authorized, the Department will pay for Applied Water at t he Contract price per gallon. When seeding is completed, amounts due for these items will be payable. The Department will pay for Loa m and Mulch as provided in Secti on 615 - Loam and Payment will be made under: P a y I t e m P a y U n i t
618.13 Seeding Method Number 1 U n i t
618.14 Seeding Method Number 2 U n i t
618.141 Seeding Method Number 3 U n i t 618.143 Special Seeding U n i t
618.15 Temporary Seeding P ound
618.16 Crown Vetch Seeding U n i t
618.25 Applied Water G a l l o n
SECTION 619 - MULCH
619.01 Description This work shall consist of furnishing and applying hay, straw,
bark, erosion control mix, or cellulose fiber for covering slop es and other areas with a mulch as shown on the plans or authorized.
619.02 Mulch Material shall conform to the requirements specif ied in the following
Sections of Division 700 - Materials: M u l c h 717.04 M u l c h B i n d e r 717.05
619.03 General Cellulose fiber mulch shall be used with Seedi ng Method 1 and may
be used with Seeding Method 2 in approved areas, which may incl ude, but are not limited to, lawns adjacent to develope d property, areas subject to high air blasts created by moving vehicles, and areas where hay mulch would create a hazard. 6-59
619.04 Applying Mulch Mulch sha ll be any of the following typ es of material.
a.Hay or straw mulch for both seeded and unseeded areas shall be spread evenly and uniformly over the designated areas. Unless otherwise directed , mulch shall be applied at the rate of 70 to 90 lbs/unit. Too heavy an application of mul ch shall be avoided. Lumps and thick mulch material shall be thinned. Unless otherwise authorized, hay or straw mulch shall be anchor ed in place by uniformly applying an acceptable mulch binder. Mulch binder shall be app lied as soon as the mulch is placed. Application of a concentrated stream of mulch binder wi ll not be allowed. Mulch binder will be paper fiber mulch applied at 5 lbs/Unit or appro ved equal. Water spray may be used as a temporary binder. Temporary mulching shall be applied as per the Contractor’s SEW PCP, spread immediately to protect soil from erosion during all stages of c onstruction throughout all seasons of the year.
b.Cellulose Fiber Mulch shall be applied as a waterborne slur ry. The cellulose fiber and water shall be thoroughly mixed and sprayed on the area to be covered so as to form a uniform mat of mulch at the rate of not less than 40 pounds of mulch material per 1000 ft² unit of area. Cellulose fiber mulch may be mixed with the proper quantities o f seed, fertilizer, and agricultural limestone as required under Section 618 - Seeding or may be applied separately the same day as seeding.
c.Bark mulch not incidental to plantings and erosion control mix shall be placed to cover the slope with a 4 inch deep blanket or as called for on the Plans or by the Resident.
619.05 Maintenance The Contractor shall maintain the hay, str aw, or fiber mulch by
repairing all damaged mulch and by correcting all shifting of t he mulch due to wind, water, or other causes, until an acceptable growth of grass has been a chieved. If cellulose fiber mulch is used, any reseeding will require a dditional cellulose fiber mulch. Bark mulch and erosion control mix will be accepted upon compl etion. Upon acceptance of each area, the Contractor will be relieved of fur ther responsibility for maintaining that area or repairing damage except that resulting from their own or subcontractor's operations. If water spray is used as a temporary binder, it shall be main tained in a manner acceptable to the Resident. 6-60
619.06 Method of Measurement The Department will measure Mulc h for payment
by the area of surface in Units of 1000 ft2 along the slope of the ground. The quantity of bark mulch and erosion control mix measured an d accepted for payment will be the number of cubic yards each, delivered and i nstalled to the required depth as shown on the plans or as directed. Measurement will b e parallel with the slope of the ground.
619.07 Basis of Payment The accepted areas mulched will be paid for at the
contract price per unit; Bark Mulch and Erosion Control Mix wil l be paid for by the Cubic Yard; which shall be full compensation for furnishing and sprea ding the hay or straw and mulch binder, cellulose fiber mulch, bark mulch or erosion cont rol mix. When mulch is measured by bales, each bale will be paid for at 60% of the contract price per unit. Payment will be made under: P a y I t e m P a y U n i t
619.12 Mulch Unit
619.13 Bark Mulch Cubic Yard
619.14 Erosion Control Mix Cubic Yard
SECTION 620 – GEOTEXTILES
620.01 Description This work shall consist of the furnis hing and installing of woven
geotextile fabric or non-woven geotechnical fabric, hereinafter called fabric, as shown in the Contract, or otherwise directe d. This Section is intended for use in conjunction with Section 722 - Geotextiles.
620.02 Materials Fibers used in the manufacture of geote xtiles, and the threads used
in joining geotextile by sewing, shall consist of long-chain sy nthetic polymers, composed of 95 percent by weight of polyolefins or polyesters. They shall be formed into a stable network such that the filaments or yarns retain their dimension al stability relative to each other, including salvages. Geotextiles shall meet the requirements in the following Sectio ns of Division 700 - Materials: Stabilization/Reinforcement Geotextile 722.01 Drainage Geotextile 722.02 Erosion Control Geotextile 722.03 Separation Geotextile 722.04
Source: Maine Standard Specifications for Road and Bridge Construction, 2020 Edition. Pages 528–530 of 817.