8. Section 02938 Sod (2 pages) dated 24-May-22.pdf

SECTION 02938

SOD

1. SCOPE: This section covers the preparation of sod and protection and maintenance of all sodded areas.

2. GENERAL:

2.1 Work to be Done. All areas resulting from site grading or other disturbed areas shall be backfilled and sodded as hereinafter specified.

2.2 Planting Dates: The contractor shall not install sod on frozen or otherwise unsuitable surface. Contractor shall sod only between the dates of 1 April and 1 July. Contractor shall water as required to establish the turf. Ultimately the contractor is responsible for the establishment of the planted sod. If the sod cannot be installed during this time period, the contractor shall provide temporary seed and come back in the spring, prepare lawn bed, and then install the sod.

3. MATERIALS:

3.1 Backfill material shall be of equal quality to the surrounding topsoil.

3.2 Sod: Sod shall be centipede grass, strongly rooted, and reasonably free of pernicious weeds and apparent disease. All sod shall be freshly cut and installed in place within 24 hours.

Thickness of sod shall be two inches. The sod will be inspected during laying operations, and any sod which has been permitted to dry out or become otherwise injured during transportation or storage so that its survival after placing has been rendered doubtful will be rejected. All sod shall be of uniform thickness.

3.3 Fertilizer: Ten pounds of 10-10-10 fertilizer per 1000 feet of are shall be used. (10-10-10 referring to the amounts of nitrogen, phosphorous, and potassium).

3.4 Sufficient amount of lime or sulfur shall be used to adjust the pH of the soil to 5.5.

4. BACKFILLING AND PREPARATION OF SEED BED:

4.1 General. The areas to be treated and their respective requirements for sod, fertilizer, lime, and other treatment shall include all areas disturbed by the Contractor and those shown to be sodded on the contract plans.

4.2 Soil Preparation. Contractor shall kill all existing vegetation in the areas to be sodded.

Those areas disturbed by the Contractor and those shown on the contract plans to be sodded shall be disked and tilled a minimum depth of three inches. The Contractor shall be responsible for taking a soil sample sending it to North Carolina State University for a pH analysis test. The Contractor shall be responsible for amending the soil as per NC State recommendations. The existing grass, mulch, stones over one half inch in size, sticks and rubbish, and excess soil shall be removed only after the soil is adjusted to the specified pH. No heavy objects except lawn rollers shall be removed over sodded areas after subgrade soil has been scarified.

FA480922B0001

Attachment 8

Current as of 24-May-2022

5. SODDING:

5.1 The sod shall be laid smoothly, edge to edge, and with staggered joints. Sod shall be pulled tight so that there are no gaps. The sod shall immediately be pressed firmly into contact with the sod bed using a light-weight turf roller or other approved equipment, so as to eliminate all air pockets, provide a true and even surface, and ensure knitting without displacement of the sod or deformation of the surfaces of sodded areas. Following compaction, screened soil of good quality shall be used to fill all cracks between sods. Excess soil shall be worked into the grass with rakes or other suitable equipment. The quantity of fill soil shall be such as will cause no smothering of the grass.

5.2 Finishing: After the sodding operation has been completed, the edges of the area shall be smooth. On slopes steeper than 2 to 1 and elsewhere when so shown, the sod shall be fastened in place with suitable wooden pins or by other approved methods. The sod shall be watered and irrigated immediately after placement. Sufficient water shall be applied to wet the sod thoroughly and to wet the sod bed at least two inches deep. Watering shall be done in a manner that will avoid erosion due to the application of excessive quantities, and the watering equipment shall be of a type that will prevent damage to the finished surface.

5.3 Maintenance: Sodded areas shall be maintained, cut, and watered as necessary for 30 days following installation of the sod. When any portion of the surface becomes gullied or otherwise damaged after any part of the area has been sodded, the affected portion shall be repaired to re-establish the condition and grade of the soil prior to sodding and shall then be re-sodded as previously specified. A final inspection shall be held at the end of this thirty day period for acceptance of the sod.

FA480922B0001

Attachment 8

Current as of 24-May-2022