(A) The contractor shall seed or sod disturbed areas as shown on the plans.
(B) Prior to final soil preparations for all areas to be seeded, fertilizer shall be applied at the rate of ten pounds per 1,000 square feet of area. The fertilizer shall be commercial type either organic or inorganic material and shall be normal 12-12-12 proportions containing nitrogen, phosphorus and potash. Delivery to the site shall be in labeled bags with the manufacturer’s guaranteed analysis. The fertilizer shall be applied uniformly over the entire area by a distributor or spreader which is approved by the engineer. After spreading the fertilizer, the contractor shall incorporate it into the upper four inches of the soil by discing and then harrowing until all ground clods and chunks have been broken up and the soil is ready for seeding. The discing and harrowing may be omitted if the seed and fertilizer is applied hydraulically.
(C) The seed mixture of 40% Kentucky Blue Grass, 30% Creeping Red Fescue and 30% Perennial Rye shall be applied at the rate of four pounds per 1,000 square feet of area using an engineer approved method to guarantee an even coverage. The seed mixture for roadway embankments shall be 50% tall Fescue, 10% White Dutch Clover, 20% Sweet Clover and 20% Perennial Rye Grass. Seed that has become moldy, wet or otherwise damaged iron transportation or storage will not be acceptable.
(D) Before seed has been sown, all debris shall be cleaned from the area. After seeding, the entire area shall then be compacted with a cultipactor, roller or other approved equipment. Final rolling shall be along contours and across slopes to reduce water erosion.
(E) All seeded areas shall be hydraulically mulched at a rate in accordance with manufacturer’s instructions. Hydraulic mulch mixtures shall be wood cellulose fiber, bonded fiber matrix or mechanically-bonded fiber matrix meeting the requirements of IDOT § 4169.07(B).
(F) The contractor shall sod all areas as shown on the plans with three-fourths inch thick nursery grown Blue Grass Sod of good quality. All sod shall be placed with pieces tightly abutting each other and shall be staked with thin wood stakes to prevent slipping. The contractor shall then roll sod with a light roller to provide an even surface and to make tight contact between the roots and the subgrade. After sodding, the contractor shall apply the above specified fertilizer at the rate of ten pounds per 1,000 square feet of area.
(G) The contractor shall keep the area continually damp until the sod or grass is well established.
(H) Areas rendered barren or sparse due to erosion or other weathering actions shall be reseeded on a one time only basis at no charge to the owner. Areas designated as such shall be reseeded using the original seed mixture within ten days of notification or as soon as weather permits.