618Seeding

618.03 Rates of Application Application rates are set forth below. One unit is defined as

1000 ft2.

618.04 Time of Initial Seeding The Contractor shall not seed during January, February,

or March, or when the ground is frozen or snow covered, or at other times as the Department may direct.

618.05 Applying Fertilizer and Agricultural Ground Limestone - Conventional Method

The Contractor shall apply fertilizer and agricultural ground limestone when the soil is moist and before sowing the seed. The Contractor shall apply these materials to the soil by an approved method capable of maintaining a measured rate of application, thoroughly incorporating materials into the soil to a depth of not less than 1 inch. The Contractor shall not apply these materials simultaneously unless using an approved hydraulic method.

618.06 Sowing Seed - Conventional Method The Contractor shall sow seeding materials

uniformly at the required rate and mulch seeded areas the same day as sown. The Contractor shall roll lawn areas with a light lawn roller after seeding but before mulch is applied.

618.07 Sowing Seed and Applying Fertilizer and Agricultural Ground Limestone -

Hydraulic Method The Contractor may use the hydraulic spray method of sowing seed where approved. The Contractor shall use a commercial machine designed for the hydraulic 6-56 application of seed, fertilizer, humic acid soil conditioners, liquid lime or limestone and mulch in slurry. The Contractor shall mix seed and added materials with sufficient water in the tank of the machine and keep the slurry thoroughly agitated, so the materials are uniformly mixed and suspended in the water at all times during operation. The Contractor shall uniformly distribute the seed slurry on the designated areas at the required rate.

618.08 Mulching After seeding, the Contractor shall place hay mulch straw mulch or

erosion control blanket unless cellulose fiber mulch is applied with the seed by the hydraulic method. The Contractor shall place Mulch as specified in Section 619 and Erosion Control Blankets as specified in Section 613. Mulch for Seeding Method Number 1 shall only be cellulose fiber mulch Section 619.04(c) or straw mulch Section 619.04(b). For other seeding methods where hay mulch has been previously applied for erosion control and there is adequate hay mulch still present on the area at the time of seeding, the Department may direct the Contractor to seed over the hay mulch. Cellulose fiber mulch may be used with Method 2.

618.09 Construction Method

618.05 and 618.07.

618.10 Maintenance and Acceptance The Department will accept areas seeded with

Seeding Method 1or 2 upon attainment of a reasonably thick uniform stand of permanent grass species with at least 90 percent coverage, free from sizable thin or bare spots. The Contractor shall perform final reseeding as follows: Upon completion of all other work on the project, seeded areas that have not been accepted shall, within 60 calendar days, meet the 90 percent coverage requirement or be reseeded a final time. Final reseeding shall be done at the end of the 60-day period or at any time within the 60 days, as directed by the Resident. The Contractor will not be allowed to perform final reseeding between September 15th and April 15th, and the Department will not count this time as part of the 60-day period. All reseeding shall comply with Sections 618.03 through 618.09. The Department will accept areas sown with Method 3, Temporary Seed, Special Seed, or Crown Vetch at the time that areas are satisfactorily completed. The Contractor shall maintain and protect all seeded areas until acceptance. 618.101 Applied Water The Contractor shall use Applied Water to aid in the establishment of newly planted shrubs, trees, seedlings, and sod during an abnormal drought that requires excessive watering beyond what is expected with each planting in accordance with Sections 621.24 and 616.05. Applied Water shall be authorized by the Department. The Contractor shall use Applied Water from approved sources and in a manner to allow the soil to absorb the water without runoff.

618.11 Method of Measurement The Department will measure Seeding for payment by

the area of seeded surface in Units of 1000 ft2 along the slope of the ground. The Department will measure Applied Water for payment by the gallon in calibrated tanks or by accurate water meters. Delivery slips, as specified in Section 108.1.3-f will be required. Watering deemed necessary by the Contractor to assure a growth of grass under the guarantee provisions of Section 618.10, Maintenance and Acceptance, will not be measured for payment. 6-58

618.12 Basis of Payment The Department will pay for the accepted 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, fertilizer, and inoculant. The price shall also include any reseeding, watering, and maintenance necessary to meet the requirements of Section 618.10, Maintenance and Acceptance. When fertilizer is omitted from Seeding Method Number 1 or Number 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 the Contract price per gallon. When seeding is completed, amounts due for these items will be payable. The Department will pay for Loam and Mulch as provided in Section 615 - Loam and Section 619 - Mulch. 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