32 92 19 - Seeding.pdf

32 92 19 - SEEDING

Herbert, Rowland & Grubic, Inc. 32 92 19 - 1 007297.0444

SECTION 32 92 19 - SEEDING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Fertilizing.

2. Seeding.

3. Hydroseeding.

4. Mulching.

5. Maintenance.

1.2 REFERENCES

A. Pennsylvania Department of Transportation (PennDOT) Publication 408 Specifications.

B. Pennsylvania Seed Act of 1965, Act 187, as amended.

C. Agricultural Liming Materials Act of 1978, P.L. 15, No. 9 (3 P.S. 132-1), as amended.

D. Pennsylvania Soil Conditioner and Plant Growth Substance Law, Act of December 1, 1977, P.L. 258, No. 86 (3 P.S. 68.2), as amended.

E. Rules for Testing Seeds of the Association of Official Seed Analysts.

1.3 SUBMITTALS

A. Section 01 33 00 - Submittal Procedures: Requirements for submittals.

B. Samples:

1. Unless otherwise directed, furnish three strips of sod, 4-1/2 feet long by 12" wide, laid on 3" of topsoil and tamped in place. The samples shall be representative of the sod and workmanship to be provided. Include sod source location.

C. Certificates:

1. Unless directed otherwise, prior to use or placement of material, submit certifications of material composition of the following for approval:

a. Seed mixtures.

b. Inoculant.

1.4 QUALITY ASSURANCE

A. Provide seed mixture in containers showing percentage of seed mix, germination percentage, inert matter percentage, weed percentage, year of production, net weight, date of packaging, and location of packaging.

B. Perform Work in accordance with PennDOT and West Manchester Township standards.

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1.5 QUALIFICATIONS

A. Seed Supplier: Company specializing in manufacturing Products specified in this section with minimum five years documented experience.

B. Installer: Company specializing in performing work of this section with minimum five years documented experience.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Section 01 61 00 - Product Requirements: Product storage and handling requirements.

B. Deliver grass seed mixture in sealed containers. Seed in damaged packaging is not acceptable.

C. Deliver fertilizer in waterproof bags showing weight, chemical analysis, and name of manufacturer.

1.7 MAINTENANCE SERVICE

A. Section 01 73 00 - Execution Requirements: Requirements for maintenance service.

B. Maintain seeded areas immediately after placement until grass is well established and exhibits vigorous growing condition.

PART 2 - PRODUCTS

2.1 SEED

A. Deliver seed fully tagged and in separate packages according to species or seed mix. Seed which has become wet, moldy, or otherwise damaged in transit or storage will not be accepted.

B. Fresh, clean, dated material from the last available crop and within the date period specified, with a date of test not more than 9 months prior to the date of sowing.

Percentage of pure seed present shall represent freedom from inert matter and from other seeds distinguishable by their appearance. All seeds will be subject to analysis and testing.

Herbert, Rowland & Grubic, Inc. 32 92 19 - 3 007297.0444

Table 1 – Grass and Agricultural Seeds

Species Minimum

Guaranteed Purity (Percent)

Maximum Weed Seed (Percent)

Minimum Guaranteed Germination (Percent)

Kentucky Bluegrass (Poapratensis)

98 0.20 80

Perennial Ryegrass (Lolium perenne, var. Pennfine)

98 0.15 90

Tall Fescue (Fetuca arundinacea), var. Kentucky 31)

98 0.15 85

Crownvetch (Coronilla varia) 99 0.10 65

Creeping Red Fescue (Festuca rubra, var. Pennlawn)

98 0.15 85

Annual Rye Grass (Lolium multiflorum)

98 0.15 90

Timothy (Phleum pratense) 98 0.25 85

Birdsfoot Trefoil mixture (Lotus corniculatus)

98 0.10 80*

Redtop (Agrostis alba) 92 0.15 80

*Minimum 20% hardseed and 60% normal sprouts

2.2 SEED MIXTURE

A. See Seeding Restoration Table at end of this Section.

2.3 INOCULANT

A. Inoculate leguminous seed before seeding with nitrogen fixing bacteria culture prepared specifically for the species.

B. Do not use inoculant later than the date indicated by the manufacturer.

C. Protect inoculated seed from prolonged exposure to sunlight prior to sowing.

D. Reinoculate seed not sown within 24 hours following initial inoculation.

Herbert, Rowland & Grubic, Inc. 32 92 19 - 4 007297.0444

2.4 MULCHING MATERIALS

A. Mulches for seeded areas shall be one, or a combination of, the following:

1. Straw:

a. Cured to less than 20% moisture content by weight.

b. Contain no stems of tobacco, soybeans, or other coarse or woody material.

c. Wheat or oat straw.

2. Wood Cellulose:

a. No growth or germination inhibiting substances.

b. Green, air dried. Packages not exceeding 100 pounds.

c. Requirements:

1) Moisture Content: 12%±3%.

2) Organic Matter: 98.6%±0.2% on the oven dried basis.

3) Ash Content: 1.4%±0.2%.

4) Minimum Water-Holding Capacity: 1000%.

3. Mushroom Manure:

a. Organic origin, free of foreign material larger than 2" and substances toxic to plant growth.

b. Organic Matter: 20% minimum.

c. Water-Holding Capacity: 120% minimum.

d. pH: 6.0.

B. Sewage sludge compost is not permitted.

2.5 SLOPE STABILIZATION

A. Erosion control mat (ECM) with appropriate seed mix.

B. Erosion control and revegetation mat (ECRM) with appropriate seed mix.

C. For all slopes 25% or steeper, use appropriate matting and seed mix.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Section 01 73 00 - Execution Requirements: Verification of existing conditions before starting work.

B. Verify prepared soil base is ready to receive the Work of this section.

3.2 TIME OF OPERATIONS

A. Spring Seeding:

1. Preliminary operations for seed bed preparation may commence as soon after

February 15 as ground conditions permit.

Herbert, Rowland & Grubic, Inc. 32 92 19 - 5 007297.0444

B. Fall Seeding:

1. Preliminary operations for seed bed preparation may commence after July 15.

3.3 SEEDING

A. Distribute starter fertilizer at the specified rates.

B. Incorporate starter fertilizer into the upper l" of soil.

C. Uniformly sow specified seed mix by use of approved hydraulic seeder, power-drawn drill, power-operated seeder, or hand-operated seeder. Do not seed when winds are over 15 mph.

D. Upon completion of sowing, cover seed to an average depth of 1/4" by hand reraking or approved mechanical methods.

E. Mulch immediately after seeding, using one of the following methods:

1. Place straw mulch in a continuous blanket at a minimum rate of 1,200 pounds per

1,000 square yards:

a. Anchor straw mulch by use of twine, stakes, wire staples, paper, or plastic nets.

b. Emulsified asphalt may be used for anchorage provided it is applied uniformly at a rate not less than 31 gallons per 1,000 square yards.

c. Chemical mulch binders may be used for anchorage if they are applied uniformly at the manufacturer's recommended rate.

d. Chemical mulch binders or a light covering of topsoil may be used for anchorage when the size of the area precludes the use of mechanical equipment.

2. Apply wood cellulose fiber hydraulically at a rate of 320 pounds per 1,000 square yards. Incorporate as an integral part of the slurry after seed and soil supplements have been thoroughly mixed.

3. Spread mushroom manure uniformly to a minimum depth of 1/2" or to the depth indicated on the drawings.

F. When mulch is applied to grass areas by blowing equipment, the use of cutters in the equipment will be permitted to the extent that a minimum of 95% of the mulch is 6" or more in length. For cut matches-applied by the blowing method, achieve a loose depth in place of not less than 2".

G. When mulching by the asphalt mix method, apply the mulch by blowing. Spray the asphalt binder material into the mulch as it leaves the blower. Apply the binder to the mulch in the proportion of 1.5 to 2.0 gallons per 45 pounds of mulch:

1. Protect structures, pavements, curbs, and walls to prevent asphalt staining.

2. Erect warning signs and barricades at intervals of 50 feet or less along the perimeter of the mulched area.

3. Do not spray asphalt and chemical mulch binders onto any area within 100 feet of a stream or other body of water.

Herbert, Rowland & Grubic, Inc. 32 92 19 - 6 007297.0444

3.4 STEEP SLOPES

A. Prepare final graded surface, topsoil and designated seed mix and mulch.

B. Install matting with appropriate anchoring devices. Follow manufacturer‘s installation instructions.

3.5 MAINTENANCE

A. Maintenance includes watering, weeding, cleanup, edging and repair of depressions, washouts or gullies.

B. Those areas which do not show a prompt catch or grass within 14 days of seeding or sodding shall be reseeded or resodded until complete grass catch occurs.

Herbert, Rowland & Grubic, Inc. 32 92 19 - 7 007297.0444

SEEDING RESTORATION TABLE

RESTORATION

CONDITION

TOPSOIL LIME* BASIC FERTILIZER STARTER

FERTILIZER

SEED MIX & SOWING RATE (% BY WEIGHT)

Temporary Cover (PennDOT E)

N/A 1 Ton/Acre 5-5-5 @ 1000#/Acre

N/A 100% Annual Ryegrass

Sow 10# per 1,000 Sq. Yds.

March 15 thru October 15

Roadside; Non-mowed (PennDOT D)

Yes 800# per 1000 Sq. Yds.

10-20-20 @ 140# per 1000 Sq. Yds.

38-0-0 @ 50# per 1000 Sq. Yds. OR

31-0-0 @ 61# per 1000 Sq. Yds.

70% Tall Fescu, 30% Creeping Red Fescue

Sow 21% per 1000 Sq. Yds.

Mar. 15 thru May/Aug. thru Oct. 15

Roadside; Mowed (PennDOT B)

Yes 800# per 1000 Sq. Yds.

10-20-20 @ 140# per 1000 Sq. Yds.

38-0-0 @ 50# per 1000 Sq. Yds. OR

31-0-0 @ 61# per 1000 Sq. Yds.

50% Kentucky Bluegrass, 30% Creeping Red Fescue, 20% Perennial Ryegrass

Sow 21# per 1000 Sq. Yds.

Mar. 15 thru May/Aug. thru Oct. 15

Bank Areas (PennDOT C)

Yes 800# per 1000 Sq. Yds.

No 38-0-0 @ 50# per 1000 Sq. Yds. OR

31-0-0 @ 61# per 1000 Sq. Yds.

45% Crownvetch, 55% Annual Ryegrass

Sow 9# per 1000 Sq. Yds.

Anytime except Sept. and Oct.

Bank Areas (PennDOT W)

Yes No 38-0-0 @ 50# per 1000 Sq. Yds. OR

31-0-0 @ 61# per 1000 Sq. Yds.

70% Tall Fescue, 20% Birdsfoot Trefoil Mixture, 10% Redtop

Sow 10.5# per 1000 Sq. Yds.

Herbert, Rowland & Grubic, Inc. 32 92 19 - 8 007297.0444

RESTORATION

CONDITION

TOPSOIL LIME* BASIC FERTILIZER STARTER

FERTILIZER

SEED MIX & SOWING RATE (% BY WEIGHT)

Lawns (PennDOT B) Yes 800# per 1000 Sq. Yds.

10-20-20 @ 140# per 1000 Sq. Yds.

38-0-0 @ 50# per 1000 Sq. Yds. OR

31-0-0 @ 61# per 1000 Sq. Yds.

50% Kentucky Bluegrass, 30% Pennlawn Red Fescue, 20% Perennial Ryegrass

Sow 21# per 1000 Sq. Yds.

Mar. 15 thru May/Aug. thru Oct. 15

Open Fields; Non- Cultivated, Pasture

No No No 38-0-0 @ 50# per 1000 Sq. Yds. OR

31-0-0 @ 61# per 1000 Sq. Yds.

100% Timothy

Sow 10# per 1000 Sq. Yds.

Mar. thru May/Aug. thru Sept.

Open Fields;

Cultivated

No No No 38-0-0 @ 50# per 1000 Sq. Yds. OR

31-0-0 @ 61# per 1000 Sq. Yds.

100% Annual Ryegrass

Sow 10# per 1,000 Sq. Yds.

March 15 thru October 15

Woods; Sparse No No 10-20-20 @ 140# per 1000 Sq. Yds.

38-0-0 @ 50# per 1000 Sq. Yds. OR

31-0-0 @ 61# per 1000 Sq. Yds.

100% Red Fescue

Sow 36# per 1000 Sq. Yds.

Mar. 15 thru May/Aug. thru Oct. 15

Sodding Yes 800# per 1000 Sq. Yds.

10-20-20 @ 140# per 1000 Sq. Yds.

N/A N/A

Basin/Channels Yes No 10-20-20 @ 140# per 1000 Sq. Yds.

38-0-0 @ 50# per 1000 Sq. Yds. OR

31-0-0 @ 61# per 1000 Sq. Yds.

50% Tall Fescue, 25% Rough Bluegrass, 15% Reed Canary Grass, 10% Redtop

Herbert, Rowland & Grubic, Inc. 32 92 19 - 9 007297.0444

*Unless lesser rate indicated by soils tests

END OF SECTION 32 92 19