ConstructionRFQSampleFAC2005-50C51BMAY162011.doc

CONSTRUCTION RFQ thru FAC 2005-50C, 51B – 5/16/2011

AG-02RC-S-11-0088

Avery Office Landscaping

REQUEST FOR QUOTATION

PAGE OF PAGES

AND/OR DMS REG. 1

R1 IMAT Idaho Panhandle National Forest Nez Perce National Forest 104 Airport Road Grangeville, ID 83530 October 30, 2011

OTHER (See Schedule)

8. TO:

11. SCHEDULE (Include applicable Federal, State and local taxes)

Avery Office Landscaping

St. Joe Ranger District, Idaho Panhandle NF

Shoshone County, Idaho

PLEASE PLACE YOUR QUOTE IN SECTION B- SCHEDULE OF ITEMS

FURNISHING QUOTATION: Complete Standard Form 18, Section B, Section K, Experience Questionnaire, and Section L as your quote. Return to the address shown in Block 5a. Please place “Solicitation No. AG-02RC-S-11-0088” on the envelope.

12. DISCOUNT FOR PROMPT PAYMENT

are not attached.

DUNS NO. _____________ TIN NO.___________________

c. COUNTY

AREA CODE

NSN 7540-01-152-8084

Previous edition not usable

Prescribed by GSA-FAR (48 CFR) 53.215-1(a)

PART I - THE SCHEDULE

SECTION B - SUPPLIES OR SERVICES AND PRICES

Avery Office Landscaping St. Joe Ranger District Idaho Panhandle National Forest Shoshone County, Idaho B- 1 Schedule of Items

Quantity Pay

Unit Unit

Price Amount

* Designated Method of Measurement:

DQ - Designed Quantities, AQ - Actual Quantities, LSQ - Lump Sum Quantities, SQ - Staked Quantities, CQ - Contract Quantities B- 2 Quote on all items. Only quotes to the nearest cent will be accepted.

B- 3 Payment for Bond Premiums Payment for bond premiums in accordance with FAR Clause 52.232-5, Payment Under Fixed-Price Construction Contracts, shall not be in addition to the contract price.

B- 4 Written Acceptance Any contract resulting from this solicitation will require written acceptance within 10 days of receipt by the Contractor.

B- 5 Basis of Award

One award will be made. Offer of award will be made to the Quoter whose quote, as determined by the Contracting Officer, provides the best value to the Government, considering but not limited to, such factors as price, past performance, and capability to accomplish this type of work. The Experience Questionnaire will be used as part of this evaluation.

PART I - THE SCHEDULE

SECTION C - DESCRIPTION/SPECIFICATIONS/STATEMENT OF WORK

C- 1 Project Description and Location

(a) Description of Work. *

(b) Project Location. *

(c) Price Range. Between $25,000 and $100,000.

(d) Site Visit.

No site visit is planned for this project. For further information, please contact Tammi Arrhenius at the St. Joe Ranger District, 208 245-6030 (See Section L, FAR clause 52.237-1).

(e) Start Work. It is estimated that the Notice to Proceed will be issued in September of 2011. On site project construction work will be performed based on weather and ground conditions for proper seed germination

(f) Period of Performance. Period of performance for this contract will be September 1, 2011 to October 30, 2011.

C- 2 Standard Specifications The following Standard Specifications are applicable to this contract and are included:

Section 01010, Summary of Work

Section 02245, Grading

Section02900, Landscaping

Section 02921, Topsoil

SECTION 01010

SUMMARY of work

PART 1 - GENERAL

Summary

Work for this project consists of furnishing all labor, materials, equipment, supervision, and transportation necessary to improve landscaping at the Avery Office in accordance with the drawings and specifications.

Major items of work include topsoil placement, grading, hydroseeding and placement of drain rock.

1. Topsoil Placement:

b. Delivery and placement of approximately 550 cubic yards of topsoil on west side of property where tracked equipment is required over “NO DRIVE ZONE” as shown on the drawings.

c. Delivery and placement of approximately 85 cubic yards of topsoil on east side of property as shown on the drawings.

2. Grading:

a. Grading of all material placed to eliminate all rises and depressions as specified in section 02245, Grading.

b. Minor grading wil be needed in places around the main office to help with proper water drainage.

3. Hydroseeding:

a. Hydroseeding of all areas of newly placed material and bare spots.

4. Drain rock around main office:

a. Placing drain rock around perimeter as shown on the drawings.

Location This project is located on the Idaho Panhandle National Forests, St. Joe Ranger District, Avery office. The Avery office is approximately 41 miles east of St.Maries, Idaho and 6 miles west of Avery, Idaho off of Forest Highway 50, along the St. Joe River.

USE OF PREMISES

spec writer: Delete this Article if Owner places strict limitations on Contractor's use of premises, and use Division 1 Section "Work Restrictions" instead. Expand Article if Owner's restrictions are minor. See the Evaluations in Division 1 Section "Work Restrictions.”

spec writer: Retain paragraph below if Project is on a vacant site or in an unoccupied building being renovated and there are no Owner-occupancy requirements. Revise to suit Project.

General:

Contractor shall have full use of premises for construction operations, including use of Project site, during construction period. Contractor's use of premises is limited only by the Government's right to perform work or to retain other contractors on portions of Project.

Contractor shall at all times conduct his operations to ensure the least inconvenience to the public and employees.

Confine storage of materials to areas as approved by the CO.

Contractor shall provide adequate signing and barricades and take necessary safety measures to protect the public during all construction operations. Contractor shall minimize disturbance of all undisturbed areas.

Preservation of Natural Features:

Confines all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

Provide temporary barriers to protect existing trees and plants and root zones.

Do not remove, injure, or destroy trees or other plants without prior approval. Consult with CO and remove agreed-on roots and branches that interfere with construction.

Do not fasten ropes, cables, or guys to existing trees.

Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

Existing Utilities: Notify CO and utility companies of proposed locations and times for excavation.

Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

Interruption of Existing Utility Service: Notify CO, 48 hours in advance of any interruption of existing utilities.

spec writer Insert additional paragraphs to specify minor restrictions on Contractor's use of premises or to specify minor limitations because of Owner occupancy.

Permits

Permits required by County, State, or Federal laws or regulations shall be obtained by the Contractor.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION 01100

SECTION 02245

GRADING

PART 1 – GENERAL

SUMMARY

Includes topsoil stripping, rock removal, cutting, filling, compaction and rough grading.

PROTECTION

During grading operations, and before stopping work for the day, blade unfinished areas being graded to provide a well-drained surface so water cannot collect in pools and puddles. Protect newly graded areas from traffic and erosion.

REFERENCES

Standard Moisture Density Test, AASHTO T-99, Method C or D.

PART 2 – PRODUCTS

FILLS AND EMBANKMENTS

Use excavated material, including rock up to 12 inches, in largest dimension. Material removed in stripping shall not be used. Material used must be clean and free from vegetation, pieces of timber, muck, and other foreign material.

Rocks over 6 inches in largest dimension not permitted in the top 2 feet of fill. Rocks over 4 inches in largest dimension not permitted in the top 6 inches of fill.

No frozen material permitted in the fill.

TOPSOIL

Use material excavated from perimeter of office in areas where minor grading around office may be needed, with approval from the Contracting Officer (CO).

PART 3 – EXECUTION

TOPSOIL STRIPPING

Strip to a depth of 5 inches within the grading and excavation limits.

Remove without contamination with subsoil and stockpile on the site as directed by the Contracting Officer (CO).

CUTS, FILLS, AND EMBANKMENTS

Locations, lines, and grades as indicated on the drawings.

Cohesive soils that have become hard or lumpy, or that have been piled and have become dry, shall be broken up and properly conditioned for moisture content for moisture content immediately before use in filling.

Surfaces on which compacted fill is to be placed shall be wetted or dried as may be required to obtain the compaction specified.

Place material in successive layers of 8 to 12 inches in loose depth for the full cross-section and compact to the following percentages of maximum density determined by AASHTO T-99.

Under roadways and parking areas: 90%.

All other areas: 85%.

ROUGH GRADING

Uniformly smooth grade excavated and filled sections and adjacent transition areas.

Grade to 4 inches below finish grade elevation for all areas to be topsoiled.

Grade finished surface for other areas reasonably smooth, compacted, and free from irregular surface changes.

The degree of finish shall be that ordinarily obtainable from either blade-grader or scraper operations.

The finished surface on which roadway or parking areas are to be placed shall not vary more than 0.05 foot from the established grade. Elevation shall provide for 4 inch compacted stone surfacing.

Other surfaces shall not vary more than 0.10 foot from the established grade.

Slope grade away from structures minimum 4 inches in 10 feet for a distance of 10 feet minimum.

END OF SECTION 02245

SECTION 02900

LANDSCAPING

PART 1 - GENERAL

SUMMARY

This Section includes the following:

Spec writer: Adjust list below to suit Project.

Seed.

Seed Source.

Topsoil.

Soil Amendments.

Fertilizers.

Mulches.

Separation Fabrics

Weed-Control Materials

Erosion-Control Materials

Landscape Edgings.

Drain Rock

Related Sections: The following Sections contain requirements that relate to this Section:

spec writer: List below only products, construction, and equipment for this Project that the reader might expect to find in this Section but are specified elsewhere. Verify that the Section titles listed below for this Project's Specifications are correct.

Section 02245 "Grading”

Section 02921 “Topsoil” spec writer: If alternates, allowances, or unit prices apply to work of this Section, insert brief paragraphs here to alert the Contractor and reference the appropriate Division 1 Section for specific details.

SUBMITTALS

Product certificates signed by manufacturers certifying that their products comply with specified requirements.

Manufacturer's certified analysis for standard products.

Analysis for other materials by a recognized laboratory made according to methods established by the Association of Official Analytical Chemists, where applicable.

spec writer: Delete paragraph below if no seeded lawns or if not required.

Certification of grass seed from seed vendor for each grass-seed mixture stating the botanical and common name and percentage by weight of each species and variety, and percentage of purity, germination, and weed seed. Include the year of production and date of packaging.

spec writer: Delete subparagraph below when no sod or no seed-grown sod is required.

Certification of each seed mixture for sod, identifying sod source, including name and telephone number of supplier.

spec writer: Retain Samples when required. Revise to suit Project.

Samples of each of the following:

Edging materials and accessories to verify color selected.

Material test reports from qualified independent testing agency indicating and interpreting test results relative to compliance of the following materials with requirements indicated.

Analysis of imported topsoil.

QUALITY ASSURANCE

Installer Qualifications:

Engage an experienced Installer who has completed landscaping work similar in material, design, and extent to that indicated for this Project and with a record of successful landscape establishment.

Installer's Field Supervision:

Require Installer to maintain an experienced full-time supervisor on the Project site during times that landscaping is in progress.

spec writer: Delete paragraph below if no testing is required that involves Contractor selecting the agency.

Testing Agency Qualifications:

To qualify for acceptance, an independent testing agency must demonstrate to Architect's satisfaction, based on evaluation of agency-submitted criteria conforming to ASTM E 699, that it has the experience and capability to satisfactorily conduct the testing indicated without delaying the Work.

spec writer: Retain paragraph and subparagraph below for imported topsoil or topsoil to be reused.

Topsoil Analysis:

Furnish a soil analysis made by a qualified independent soil-testing agency stating percentages of organic matter, inorganic matter (silt, clay, and sand), deleterious material, pH, and mineral and plant-nutrient content of topsoil.

Report suitability of topsoil for growth of applicable planting material. State recommended quantities of nitrogen, phosphorus, and potash nutrients and any limestone, aluminum sulfate, or other soil amendments to be added to produce satisfactory topsoil.

Seed and mulching agents, such as hay or straw, shall be certified weed-free prior to use.

spec writer: Delete paragraph below if work of this Section is not extensive or complex enough to justify a conference.

DELIVERY, STORAGE, AND HANDLING

Packaged Materials:

Deliver packaged materials in containers showing weight, analysis, and name of manufacturer. Protect materials from deterioration during delivery and while stored at site.

spec writer: Delete paragraphs below if not required.

Seed: Deliver seed in original sealed, labeled, and undamaged containers.

PROJECT CONDITIONS

spec writer: Retain, delete, or revise paragraph below to suit Project requirements.

Utilities:

Determine location of above grade and underground utilities and perform work in a manner which will avoid damage. Hand excavate, as required. Maintain grade stakes until removal is mutually agreed upon by parties concerned.

COORDINATION AND SCHEDULING

Unless otherwise approved by the CO, all seeding and mulching shall be accomplished during the period from:

spec writer: Edit paragraph below to sort project.

May 1 through October 31, 2011.

LAWN MAINTENANCE

Begin maintenance of lawns immediately after each area is planted and continue until acceptable lawn is established, but not for less than the following periods:

1.

Seeded lawns: 60 days after date of Substantial Completion.

a. When full maintenance period has not elapsed before end of planting season, or if lawn is not fully established at that time, continue maintenance during next planting season.

B.

Maintain established lawns by watering, fertilizing, weeding, mowing, trimming, replanting, and other operations. Roll, regrade, and replant bare or eroded areas and remulch to produce a uniformly smooth lawn.

PART 2 – PRODUCTS

Seed

All seed shall be new crop seed labeled in accordance with U.S. Department of Agriculture Rules and Regulations under the Federal Seed Act. Seed shall meet the requirements of Federal Specification JJJ-S-181. Seed which has become wet, moldy, or otherwise damaged will not be acceptable.

Seed shall be furnished separately or in mixture in standard containers with: Seed name; lot number; net weight; percentages of purity and of germination (in case of legumes, percentage of germination to include hard seed); and percentage of maximum weed seed content clearly marked for each kind of seed.

The contractor shall furnish the CO duplicate signed copies of a statement by the vendor, certifying that each lot of seed has been tested by a recognized laboratory for seed testing within 6 months of date of delivery. This statement shall include: Name and address of laboratory; date of test; lot number for each kind of seed; and results of tests as to name, percentages of purity and of germination, and percentage of weed content for each kind of seed furnished, and in case of a mixture, the proportions of each kind of seed. Legume seed shall be inoculated with approved cultures in accordance with the instructions of the manufacturer.

Seed Substitution:

Before any species substitution of a grass or wildflower seed will be considered, the contractor shall make inquiries of all sources at his disposal. Written statements concerning the availability of the seed species designated on the plans shall be obtained. Upon failing to locate the designated seed species or source, the contractor shall make inquiries of all sources designated by the CO. Substitutions for seed species shall be considered when all sources have been exhausted.

Grass Seed:

Slender Wheatgrass “Pryor or Revenue

5lbs. pls/acre

Hard Fescue “Durar”

8 lbs. pls/acre

Mountain Brome “Bromar”

8 lbs. pls/acre

Annual “Rye”

6 lbs. pls/acre

Alsike Clover

3 lbs. pls/acre

TOTAL

30 lbs PLS/ACRE Pounds of seed to be purchased per acre shall be obtained by dividing the pounds of pure live seed required per acre by the product of the percent purity and percent germination.

Example: 5 pounds per live seed/acre = 6.55 pounds commercial seed per acre

0.9 purity x 0.85 germination

Seed Source The following company is a source for seed:

Company Name

Address

Phone Number

Fax Number Western Native Seed P.O. Box 1281

(719) 275-8414

(719) 269-3423

Canon City, CO 81215

Sharp Seed Contact 101 E. 4th Road

(800) 421-4234

(303) 356-1267

Greeley, CO 80631

Windriver Seed

Rt. 1 Box 97

(307) 568-3325

(307) 568-3326

Mandersoa, WY 82432

TOPSOIL

Division 2, Section 02921, Topsoil spec writer: Retain subparagraph above or below when satisfactory topsoil is not available on-site, or retain both as Contractor's option.

Tackifiers

Asphalt Emulsion Tackifier: Asphalt emulsion, ASTM D 977, Grade SS-1, nontoxic and free of plant growth – or germination-inhibitors.

Nonasphaltic Tackifier: Colloidal tackifier recommended by fiber-mulch manufacturer for slurry application, nontoxic and free of plant growth – or germination-inhibitors.

The tackifier shall be a plantago based tackifier consisting of the following properties:

Protein Content 1.62%

Ash Content

2.70%

Fiber

4.00%

Ph, 1% Solution 6.80

Settleable Solids 5.00%

The following products meet the above specifications for a plantago based tackifier.

R-TACK by Rantec Corporation, P.O. Box 729, Hwy 14 West, Ranchester, WY 82839 Ph. 307-655-9565 or Denver CO. Contact: Bowman Construction Supply, Inc. Ph. 303-696-8960.

Aopha Plantago By Reclamare Company, 20727 7th Avenue South, Seattle, WA 98198 Ph. 206-824-2385 or Denver CO. Contact: Buckley Powder CO. Ph. 303-790-7007.

SOIL AMENDMENTS

spec writer: Limestone is commonly used to neutralize acid soils. Add percentages of carbonates, calcium, and magnesium when required.

Lime: ASTM C 602, Class T, agricultural limestone containing a minimum 80 percent calcium carbonate equivalent, with a minimum 99 percent passing a No. 8 (2.36 mm) sieve and a minimum 75 percent passing a No. 60 (250 micrometer) sieve.

spec writer: Retain subparagraph below when magnesium is required.

Provide lime in the form of dolomitic limestone.

Agricultural Limestone:

Agricultural limestone shall be a calcic or dolomitic ground limestone containing not less than 85 percent of total (calcium and magnesium) carbonates.

Limestone shall meet the following sieve analysis: at least 40 percent passing a No. 100 sieve and at least 95 percent passing a No. 8 sieve.

Granulated slag or other approved natural sources of lime may be used, provided the application rate is adjusted to equal the total neutralizing power of the specified ground limestone.

Aluminum Sulfate: Commercial grade, unadulterated.

Sand: Clean, washed, natural or manufactured sand, free of toxic materials.

Perlite: Horticultural perlite, soil amendment grade.

Peat Humus: Finely divided or granular texture, with a pH range of 6 to 7.5, composed of partially decomposed moss peat (other than sphagnum), peat humus, or reed-sedge peat.

spec writer: Select paragraph above or below or delete when not required. Sphagnum moss is too acid for many trees, shrubs, and plants.

Peat Humus: For acid-tolerant trees and shrubs, provide moss peat, with a pH range of 3.2 to 4.5, coarse fibrous texture, medium-divided sphagnum moss peat or reed-sedge peat.

Sawdust or Ground-Bark Humus: Decomposed, nitrogen-treated, of uniform texture, free of chips, stones, sticks, soil, or toxic materials.

spec writer: Retain subparagraph below when site treatment is acceptable.

When site treated, mix with at least 0.15 lb (2.4 kg) of ammonium nitrate or 0.25 lb (4 kg) of ammonium sulfate per cu. ft. (cu. m) of loose sawdust or ground bark.

Manure: Well-rotted, unleached stable or cattle manure containing not more than 25 percent by volume of straw, sawdust, or other bedding materials; free of toxic substances, stones, sticks, soil, weed seed, and material harmful to plant growth.

Herbicides: EPA registered and approved, of type recommended by manufacturer.

Water: Potable.

FERTILIZER

Fertilizer shall be uniform in composition, free flowing, suitable for application with approved equipment and delivered to the site in unopened original containers, each bearing the manufacturer’s guaranteed analysis and inconformity with state fertilizer laws.

spec writer: Bonemeal is organic, has an alkaline reaction, and is nonburning.

Bonemeal: Commercial, raw, finely ground; minimum of 4 percent nitrogen and 20 percent phosphoric acid.

spec writer: Superphosphate is an inorganic, neutral source of phosphorus, useful in alkaline calcareous soils of arid areas.

Superphosphate: Commercial, phosphate mixture, soluble; minimum of 20 percent available phosphoric acid.

Commercial Fertilizer: Commercial-grade complete fertilizer of neutral character, consisting of fast- and slow-release nitrogen, 50 percent derived from natural organic sources of urea-form, phosphorous, and potassium in the following composition:

spec writer: Fertilizer composition in subparagraphs below are examples only. Revise to suit Project. When used as a soil amendment, revise fertilizer mix to remedy deficiencies found in soil tests.

Composition: 1 lb per 1000 sq. ft. (0.5 kg per 100 sq. m) of actual nitrogen, 4 percent phosphorous, and 2 percent potassium, by weight.

Composition: Nitrogen, phosphorous, and potassium in amounts recommended in soil reports from a qualified soil-testing agency.

Slow-Release Fertilizer: Granular fertilizer consisting of 50 percent water-insoluble nitrogen, phosphorus, and potassium in the following composition:

spec writer: Slow-release fertilizer compositions in subparagraphs below are examples only. Revise to suit Project. When used as a soil amendment, revise fertilizer mix to remedy deficiencies found in soil tests.

Composition: 5 percent nitrogen, 10 percent phosphorous, and 5 percent potassium, by weight.

Composition: 20 percent nitrogen, 10 percent phosphorous, and 10 percent potassium, by weight.

Composition: Nitrogen, phosphorous, and potassium in amounts recommended in soil reports from a qualified soil-testing agency.

Composition: Nitrogen, phosphorous, and potassium in amounts recommended in soil reports from a qualified soil-testing agency.

MULCHES

Straw: Straw for mulching shall be from grain crops that are free from noxious weeds, mold, or other objectionable material. Straw mulch shall be in an air-dry condition and suitable for placing with mulch blower equipment.

Hay: Grass hay shall be of, approved herbaceous mowings, free of noxious weeds, mold, or other objectionable material. Grass hay shall be in an air-dry condition and suitable for placing with mulch blower equipment.

Wood Cellulose Fiber: Natural wood cellulose fiber mulch shall be produced from clean, who-wood chips and have the property of dispersing readily in water. The material shall contain no weed seed ad shall be heat-processed to eliminate factors that inhibit growth and germination. The material shall have no toxic effect when combined with seed or other materials and shall have the following physical and chemical properties:

Moisture Content: 7-13%

Organic Matter (Oven-dried Basis): 99.1% min.

Ash Content: 0.9% max

PH @ 3% Concentration: 4.7 to 7.0 pH

Water-holding Capacity: 200% by weight on oven dry basis The material shall readily blend with water, grass seed, fertilizer, and other additives to form a homogeneous slurry or mixture capable of application with power spray equipment. A colored dye that is noninjurious to plant growth and that fades rapidly with exposure to light may be used. Wood cellulose fiber shall be packaged in new, labeled containers in an air-dry condition.

Sawdust: Sawdust shall be obtained form wood that has not been subject to conditions that would cause the sawdust to lose its value or use fullness as a mulch. Sawdust shall not contain any toxic substances and shall be aged.

Peat Moss: Peat moss shall be a granulated sphagnum peat moss nearly free of wood substances consisting of a least 75 percent of partially decomposed stems and leaves of sphagnum and essentially brown in color. The texture may vary from porous fibrous to spongy fibrous and shall be free of sticks, stones, and mineral matter. Peat moss shall be in an air-dry condition, show an acid reaction of 3.5 pH to 5.5 pH, and meet State and Federal regulations.

Peat humus: Peat humus shall be natural peat or peat humus form fresh water-saturated areas, consisting of sedge, sphagnum, or reed peat and be of a physical condition that will pass through a ½ inch mesh screen. The humus shall be free of sticks, stones, roots, and other noxious weeds.

spec writer: Peat mulch may be required when plantings and seeded lawns are subjected to hot, dry weather or drying winds within 30 days of planting. Delete if not required.

Peat Mulch: Provide peat moss in natural, shredded, or granulated form, of fine texture, with a pH range of 4 to 6 and a water-absorbing capacity of 1100 to 2000 percent.

Grass Straw Cellulose Fiber: Natural or cooked straw (grass processed to remove seed) cellulose fiber shall have the property of dispersing readily in water and shall have no toxic effect when combined with seed or other materials. The processed fiber shall contain no growth inhibiting factors or wee seed. The homogeneous slurry or mixture shall be capable of application with power spray equipment. A green colored dye that is non-injurious to plant growth may be used. The fiber shall be packaged in new, labeled containers, shall be of uniform weight (plus a minus 5 percent) in an air-dry condition, and shall bear the name of the manufacturer and the air-dry weight content. The fiber shall meet the following characteristics when tested:

Acidity range: 6.5 to 7.5 pH

Moisture content (packaged fiber): 8-12%

Organic Matter: 90.0 – 100.0%

Ash Content: 0.0 – 10.0%

The contractor shall submit a Certificate of Compliance from the supplier that states their product meets all of the foregoing requirements, based on laboratory and field tests.

spec Writer: Fiber mulch and tackifiers in paragraphs below are used primarily to protect seeded or hydroseeded lawn areas from wind erosion.

Fiber Mulch: Biodegradable dyed-wood cellulose-fiber mulch, nontoxic, free of plant growth- or germination-inhibitors, with maximum moisture content of 15 percent and a pH range of 4.5 to 6.5.

Asphalt Emulsion Tackifier: Asphalt emulsion, ASTM D 977, Grade SS-1, nontoxic and free of plant growth- or germination-inhibitors.

Nonasphaltic Tackifier: Colloidal tackifier recommended by fiber-mulch manufacturer for slurry application, nontoxic and free of plant growth- or germination-inhibitors.

Mineral Mulch: Hard, durable stone, washed free of loam, sand, clay, and other foreign substances, of following type, size range, and color:

spec writer: Add other types of stone, such as volcanic rock or crushed brick, when required.

Type: Rounded riverbed gravel or smooth-faced stone.

Type: Crushed stone or gravel.

Type: Marble or granite chips.

spec writer: Retain or revise sizes or add other ranges as required.

Size Range: 1-1/2 inches (38 mm) maximum, 3/4 inch (19 mm) minimum.

Size Range: 3/4 inch (19 mm) maximum, 1/4 inch (6 mm) minimum.

spec writer: Revise subparagraphs below if other available color ranges are required.

Color: Uniform tan-beige color range, acceptable to Architect.

Color: Readily available natural gravel color range.

WEED-CONTROL BARRIERS

Sheet Polyethylene: Black, 0.006-inch (0.15-mm) minimum thickness.

Nonwoven Fabric: Polypropylene or polyester fabric, 3 oz. per sq. yd. (100 g per sq. m) minimum.

spec writer: Edit this article to suit project

Weed barrier shall be a spun bonded, nonwoven fabric composed of polypropylene filaments which are formed into a stable network such that the filaments retain their relative position.

Weed barrier shall conform to the following property values:

TYPICAL

FABRIC PROPERTY

UNIT

TEST METHOD

VALUE

Grab Tensile Strength lb

ASTM D-4632-86

Grab Tensile Elongation

ASTM D-4632-86

Burst Strength psi

ASTM D-3786-80a²

Trapezoid Tear Strength lb

ASTM D-4533-85

Puncture Resistance lb

ASTM D-3787-80³

Equivalent Opening Size

U.S.

COE CW02215-774

70-100

Permeability, k cm/sec

ASTM D-4491-855

0.05

Water Flow Rate gmp/sf

Permittivity

1/sec

1.0

Mirafi “140NS” by Mirafi Inc., P.O. Box 240967, Charlotte, NC 28224, meets the above specifications or approved equal.

Composite Fabric: Woven, needle-punched polypropylene substrate bonded to a nonwoven polypropylene fabric, 4.8 oz. per sq. yd. (160 g per sq. m).

EROSION-CONTROL MATERIALS

All erosion control materials shall be made of new material, clean, sound, free of rips or tears.

Net and Blankets: Biodegradable wood excelsior, straw, or coconut-fiber mat enclosed in a photodegradable plastic mesh. Include manufacturer’s recommended steel wire staples, 6 inches (150 mm) long.

Material shall be 100% coconut fiber as follows:

Long lasting UV stabilized netting on both sides. Sewn on 2-inch centers.

Bottom of mulch in the blanket shall be covered with a biodegradable tissue paper.

Width: 7.5 feet

Length: 90 feet

Weight: 45 pounds

Bon Terra “C2” Erosion Control Blanket by Bon Terra America, P.O. Box 9485, Moscow, ID 83843, (208) 882-9489, meets the above specifications or approved equal.

Fiber Mesh: Biodegradable twisted jute o spun-coir mesh, 0.92 lb per sq. yd. (0.5 kg per sq.m) minimum, with50 to 65 percent open area. Include manufacturer’s recommended steel wire staples, 6 inches (150 mm) long.

Burlap: Burlap shall be of standard weave with a weight of 3.5 to 5.0 ounces per square yard.

Jute Mesh: Jute mesh shall be of a uniform, plain weave with warp and weft yarns of approximately the same size. The physical requirements shall be:

Width of 45 to 48 inches, plus or minus 1 inch.

78 warp ends per width.

41 weft ends per yard.

The weight of cloth shall average 1.80 pounds per running yard with a 5 percent minimum tolerance to an average of 1.22 pounds per running yard with a 5 percent minimum tolerance at standard atmospheric conditions.

Woven Paper or Sisal Mesh Netting: Woven paper or woven sisal mesh netting shall be woven from twisted yarns available in rolls at least 45 inches wide. Mesh shall have a 3-inch by 3-inch maximum opening. Shrinkage after wetting shall not exceed 20 percent of the surface area. Netting shall have a minimum dry weight of 0.8 pound per square yard, plus or minus 10 percent.

Excelsior Blanket: Excelsior blanket shall consist of a machine produced mat or curled wood excelsior to 80 percent 6-inch or longer fiber length with consistent thickness and the fiber evenly distributed over the entire area of the blanket. Fiber dimensions shall be 0.021 by 0.042 inch plus or minus 25 percent. Average weight per square yard to be 0.975 pounds. Average weight per square yard to be 0.975 pounds plus or minus 10 percent at time of manufacture.

Photodegradable Plastic Mesh Netting: Material shall be extruded, rectangular mesh and weigh approximately 3.0 pounds per 1,000 square feet (plus ½ pound) and have a mesh opening and color as SHOWN ON THE DRAWINGS.

Straw Bales:

Straw bales shall be hay, straw or other approved material containing approximately five cubic feet of material and weighing not less than 35 ponds. Bales shall be bound with wire and be anchored with two #5 rebar stakes 3 feet long with plastic caps or two wood stakes 2” x 2” x 3 feet long.

Erosion Log:

Erosion logs shall be made of curled aspen wood excelsior with a consistent width of fibers evenly distributed throughout the log. The casing shall be seamless, photo degradable tube netting the curled aspen wood excelsior shall be fungus free, resin free and contain no growth or germination inhibiting substances. Include manufacturer’s recommended excelsior soil retention blanket.

Diameter: 300-457 millimeters (nominal)

Length: 3.00 meters (minimum)±10%

Mass/Unit: 4.5 kg/meter (minimum)

Silt Dike:

Silt fence shall consist of premanufactured triangular shaped silt dikes with the following dimensions:

Center height: 203 to 245 mm

Base: 406 to 508 mm

Section Length: 0.9 to 2.1 meters

Section width including fabric extensions: 1.7 meters (minimum) Triangular shaped inner material shall be urethane foam covered with a woven geotextile fabric. The fabric aprons shall extend a minimum of 0.6 meters beyond each side of the triangle. Include manufacturer’s recommended hardware (“U” staples).

Blankets: Biodegradable wood excelsior, straw, or coconut-fiber mat enclosed in a photodegradable plastic mesh. Include manufacturer's recommended steel wire staples, 6 inches (150 mm) long.

Fiber Mesh: Biodegradable twisted jute or spun-coir mesh, 0.92 lb per sq. yd. (0.5 kg per sq. m) minimum, with 50 to 65 percent open area. Include manufacturer's recommended steel wire staples, 6 inches (150 mm) long.

LANDSCAPE EDGINGS

spec writer: Wood edgings are known as wood headers in some parts of the U.S. Revise term to suit locality.

Wood Edging: Wood edging and stakes of sizes shown and of the following wood species:

spec writer: Retain required species.

Species: All heart redwood.

Species: Western red cedar, all heart.

Species: Southern pine, pressure treated according to AWPA C2 with waterborne preservative for soil and freshwater use.

Stakes: Wood, same species, 1 by 2 by 18 inches long in nominal size (19 by 38 by 460 mm long in actual dry size), with galvanized nails for anchoring headers and edging.

spec writer: Descriptions in paragraph below are based on steel edgings by Border Concepts, Inc., and J.T. Ryerson & Son, Inc.

Steel Edging: ASTM A 569 (ASTM A 569M), rolled edge, standard steel edging, fabricated in sections with loops stamped from or welded to face of sections approximately 30 inches (760 mm) apart to receive stakes.

Edging Size: 3/16 inch (4.8 mm) wide by 4 inches (102 mm) deep.

Edging Size: As indicated.

Stakes: Tapered steel, 15 inches (381 mm) long.

Accessories: Standard tapered ends, corners, and splicers as required.

spec writer: Select appropriate finish from 3 subparagraphs below.

Finish: Standard paint finish; color selected by Architect.

Finish: ASTM A 525, G 90 (ASTM A 525M, Z 275) zinc coated.

Finish: ASTM A 525, G 90 (ASTM A 525M, Z 275) zinc coated with standard paint finish; color selected by Architect.

spec writer: Descriptions in paragraph below are based on aluminum edgings by Permaloc Corp., and Sure-Loc Aluminum Edging.

Aluminum Edging: Standard profile extruded-aluminum edging, ASTM B 221 (ASTM B 221M), alloy 6061-T6, fabricated in interlocking sections with loops stamped from face of sections approximately 24 inches (600 mm) apart to receive stakes.

Edging Size: 3/16 inch (4.8 mm) wide by 4 inches (102 mm) deep.

Edging Size: 3/16 inch (4.8 mm) wide by 5-1/2 inches (140 mm) deep.

Edging Size: As indicated.

Stakes: Aluminum, ASTM B 221 (ASTM B 221M), alloy 6061-T6, approximately 1-1/2 inches (38 mm) wide by 12 inches (300 mm) long.

Finish: Standard black paint finish.

Finish: Mill finish.

Finish: Standard black-anodized finish.

spec writer: Descriptions in paragraph below are based on polyethylene edgings by Oly-Ola Sales, Inc.

Polyethylene Edging: Manufacturer's standard-grooved, base-black polyethylene edging, 1/10 inch (2.5 mm) thick by 5 inches (125 mm) deep, unless otherwise indicated, extruded in standard lengths, with 9-inch- (225-mm-) steel angle stakes.

Top Profile: Straight, with top 2 inches (50 mm), 0.25 inch (6 mm) thick.

Top Profile: Rounded.

Accessories: Manufacturer's standard connecting clips or plugs.

DRAIN ROCK

spec writer: Add items not included under related Sections needed as part of the trees and shrubs Section. Coordinate with other Sections to avoid duplication.

Furnish, haul and place 1 ½” drain rock around perimeter of office as shown on the drawings.

Provide sample of drain rock for approval by the Contracting Officer (CO).

spec writer: Revise paragraph below if nonwoven geotextile, burlap, or other material is required.

PART 3 - EXECUTION

Soil preparation for seeding

The areas to be seeded shall be finished as required by other applicable sections to the lines and grades AS SHOWN ON THE DRAWINGS. Areas that are damaged by erosion or other causes shall be restored. The surface soil shall be in a roughened condition favorable for germination and growth. Limestone, when required, shall be applied uniformly either prior to or after soil preparation at the rate specified.

Level, and undulation or irregularities in the surface resulting from tillage, fertilizing, or other operations with a float drag.

Remove stones over 1 ½ inch in any dimension and sticks, roots, rubbish and other extraneous matter.

Grade all areas to be seeded to a smooth, even surface with a loose uniformly fine texture.

Rolland rake area around building, remove ridges and fill depressions as required to meet finish grades.

Limit fine grading to areas around the building and landscape berms, which can be planted immediately after grading.

Application methods for seed, fertilizer, & limestone spec writer: Edit method in paragraph below

Material shall be placed by the Hydraulic Method.

Hydraulic Method: The seed or seed and fertilizer shall be mixed with water in the amounts and mixtures specified below to produce a slurry and then applied under pressure at the rates specified below. When wood cellulose or grass straw mulch materials are to be incorporated as an integral part of the slurry mix, they shall be added after all other materials have been thoroughly mixed in the tank.

Legume seed shall be inoculated with approve cultures in accordance with instructions of the manufacturer. The inoculum used for hydraulic seeding shall be four times that recommended for dry seeding.

Dry Method: Mechanical seeders, seed drills, landscape seeders, cultipacker seeders, fertilizer spreaders, or other approved mechanical seeding equipment shall be used to apply the seed or seed and fertilizer in the amounts and mixtures specified below:

Fertilizer in dry form and ground limestone shall be spread separately at the rates specified below and incorporated in one operation to the required depth on those area AS SHOWN ON THE DRAWINGS.

Hand-operated seeding devices may be used when seed, fertilizer and ground limestone are applied in dry form.

Application of Mulch spec writer: edit method in paragraph below

Mulch shall be placed by the Hydraulic Method.

Hydraulic Method: Wood cellulose or grass straw fiber mulch and fertilizer may be applied in one operation by means of hydraulic equipment that uses water as the carrying agent. A continuous agitator action that keeps the materials in uniform suspension must be maintained throughout the distribution cycle. The discharge line shall provide an even distribution of the solution to the seedbed. Mulching shall not be done in the presence of free surface water.

Application to areas SHOWN ON THE DRAWINGS shall start at the top of the slope and work downward. If necessary the use of extension hoses may be required to reach the extremities of slopes. The rate of application shall be as specified below.

spec writer: edit method in paragraph below

Seeding

Sow seed at the following rates:

Slope stabilization areas – 2 pounds per 1,000 square feet.

For areas with slopes greater than 2:1, scarify top two inches of soil prior to seeding.

Till seed into the soil to a depth of 6 inches.

Hydroseeding

Hydroseeding: Mix specified seed, fertilizer, and fiber mulch in water, using equipment specifically designed for hydroseed application. Continue mixing until uniformly blended into homogenous slurry suitable for hydraulic application.

Mix slurry with nonasphaltic tackifier

Apply slurry uniformly to all areas to be seeded in a 1-step process. Apply mulch at the minimum rate of 1500 lb per acre (16.5 kg per 100 sq m) dry weight but not less than the rate required to obtain specified seed-sowing rate.

Apply slurry uniformly to all areas to be seeded in a 2-step process. Apply first slurry application at the minimum rate of 500 lb per acre (5.5 kg per 100 sq m dry weight but not less than the rate required to obtain specified seed-sowing rate. Apply slurry cover coat of fiber mulch at a rate of 1,000 lb per acre (11 kg pre 100 sq m).

The M Tack shall be uniformly applied in a slurry at the rate of 100 pounds of M Tack, 250 pounds of wood cellulose mulch, and 700 gallons of water per acre.

MULCHING

Mulch backfilled surfaces of pits, trenches, planted areas, and other areas indicated.

Weed-Control Barriers: Install the following weed-control barriers according to manufacturer's recommendations, before mulching. Completely cover area to be mulched, lapping edges a minimum of 6 inches (150 mm).

Material and Seam Treatment: Sheet polyethylene with seams taped.

Material and Seam Treatment: Nonwoven fabric with seams pinned.

Material and Seam Treatment: Composite fabric with seams pinned.

Organic Mulch: Apply the following average thickness of organic mulch and finish level with adjacent finish grades. Do not place mulch against trunks or stems.

spec writer: Retain required thickness from subparagraphs below or revise.

Thickness: 2 inches (50 mm).

Thickness: 3 inches (75 mm).

Mineral Mulch: Apply the following average thickness of mineral mulch and finish level with adjacent finish grades. Do not place mulch against trunks or stems.

spec writer: Retain required thickness from subparagraphs below or revise.

Thickness: 2 inches (50 mm).

Thickness: 3 inches (75 mm).

spec writer: Retain applicable type(s) of lawn planting below. Delete entire Article if no new lawns.

Installation of Erosion-Control Materials

Blankets: Install as per manufacturer’s recommendations.

Fiber Mesh: Install as per manufacturer’s recommendations.

Straw Bales:

Straw Bales shall be installed as shown on the drawings or as directed by the CO.

When bales are used for inlet protection, they shall be set so that the top of the bale is at 12 inches minimum above the inlet grate.

Stake bales with two stakes per bale.

Stakes to include one of the following:

Type: #4 Rebar 3’ length with plastic cup.

Type: Wood stakes 2” x 2” x 3’ length.

Erosion Log: Install as per manufacturer’s recommendation or as directed by the CO.

Silt Dike: Install as per manufacturer’s recommendation or as directed by the CO.

INSTALLATION OF EDGINGS

spec writer: Delete this Article when no edgings are required. Retain applicable paragraphs below, revising as required.

Wood Headers: Install wood headers or edgings where indicated. Anchor with wood stakes spaced up to 36 inches (900 mm) apart, driven at least 1 inch (25 mm) below top elevation of header or edging. Use 2 galvanized nails per stake to fasten headers and edging; length as needed to penetrate both members and provide 1/2-inch (13-mm) clinch at point. Predrill stakes when needed to avoid splitting.

Steel Edging: Install steel edging where indicated according to manufacturer's recommendations. Anchor with steel stakes spaced approximately 30 inches (760 mm) apart, driven below top elevation of edging.

Aluminum Edging: Install aluminum edging where indicated according to manufacturer's recommendations. Anchor with aluminum stakes spaced approximately 24 inches (600 mm) apart, driven below top elevation of edging.

Plastic Edging: Install plastic edging where indicated according to manufacturer's recommendations. Anchor with steel stakes spaced approximately 24 inches (600 mm) apart, driven through upper base grooves of edging.

CLEANUP AND PROTECTION

During landscaping, keep pavements clean and work area in an orderly condition.

Protect landscaping from damage due to landscape operations, operations by other contractors and trades, and trespassers. Maintain protection during installation and maintenance periods. Treat, repair, or replace damaged landscape work as directed.

DISPOSAL OF SURPLUS AND WASTE MATERIALS

Disposal: Remove surplus soil and waste material, including excess subsoil, unsuitable soil, trash, and debris, and legally dispose of it off the Government’s property.

SEED MIXTURES SCHEDULE

spec writer: Determine whether 1 or several seed mixtures are required and add to or revise schedule below. Determine seed species and varieties and mix percentages. Consult local authorities for current recommendations. Designate the purpose or location of each mix and key to Drawings where necessary.

Full-Sun Mixture: Provide certified grass-seed blends or mixes, proportioned by weight, as follows:

(Cynodon dactylon)

Sun and Partial Shade: Provide certified grass-seed blends or mixes, proportioned by weight, as follows:

(Poa pratensis)

(Festuca rubra variety)

(Lolium perenne)

(Agrostis alba)

Heavy Shade: Provide certified grass-seed blends or mixes, proportioned by weight, as follows:

(Festuca rubra variety)

(Poa trivialis)

(Agrostis alba)

Maintenance

Begin maintenance immediately after planting.

Maintain in accordance with recommendation of plant, seed and sod suppliers until acceptance of the project by the CO.

Maintenance shall include the following:

Repair any damaged seeded areas prior to final acceptance. Reseed any areas lacking acceptable coverage as deemed by the CO.

Water seeded areas throughout the maintenance period.

Reset settled plants to proper grade and position. Restore planting saucer and fill voids and air pockets around root balls.

Water nursery grown trees, shrubs, and ground cover immediately after planting and then water plants until final acceptance.

END OF SECTION 02900

SECTION 02921

TOPSOIL

PART 1 - GENERAL

SUMMARY

This work shall consist of hauling, depositing, and spreading topsoil.

PART 2 – PRODUCTS

SOURCE

Import topsoil from off-site sources.

QUALITY

Topsoil shall consist of loose, friable, sandy loam, free of admixture of subsoil, refuse, stumps, roots, rocks, brush, weeds, or other material that would be detrimental to the development of vegetative growth. Topsoil, as used herein, shall mean that portion of the soil profile defined technically as the "A" horizon by the Soil Science Society of America.

Topsoil shall have a grading analysis as follows:

Sieve

Designation Percentage by Weight

Mesh Sieve Passing Square

The minimum and maximum pH values shall be 5 and 8, respectively.

Topsoil shall contain a minimum of 3 percent and a maximum of 20 percent organic matter as determined by loss on ignition of samples oven dried to constant weight at 212 F.

Topsoil shall consist of the following particle sizes:

Min. Max

Prior to stripping, topsoil shall have demonstrated by the occurrence upon it of healthy crops, grass, or other plant growth, that it is of good quality and reasonably free draining.

PART 3 – EXECUTION

SPREADING

Topsoil shall be deposited and spread approximately 3” deep (+/-1”).

Apply more or less topsoil as required to eliminate rises and depressions.

Cover all river rocks larger…