36C78619Q0426-002.pdf
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- Ft Logan Flat Marker raise and realignment as well as turf renovation project Federal contract opportunity
- Solicitation number
- 36C78619Q0426
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36C78619Q0426 Specifications Logan.pdf
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SPECIFICATIONS
SECTION 00 01 10
TABLE OF CONTENTS
DIVISION 00 – SPECIAL SECTIONS
00 01 15 List of Specification Exhibits and Drawings
DIVISION 04 – MASONRY
04 01 00 Flat Marker Cleaning
DIVISION 10 – SPECIALTIES
10 80 00 Headstone Raise, Lower, Realign, Level, Backfill
DIVISION 31 – EARTHWORTH
31 20 00 Earthwork
DIVISION 32 – EXTERIOR IMPROVEMENTS
32 92 00 Turfgrass Renovation and Reestablishment
SECTION 00 01 15
SPECIFICATION EXHIBITS AND DRAWINGS
EXHIBIT
LETTER EXHIBIT TITLE
A Flat marker Installation Details
B Plan View – Flat marker Burial Section Layout and Realignment
C Elevation View – Flat marker Burial Section Vertical Alignment
D Turfgrass Specifications and Mowing Requirements
SPECIFICATION EXHIBIT A
SPECIFICATION EXHIBIT B
SPECIFICATION EXHIBIT C
SPECIFICATION EXHIBIT D
TURFGRASS SPECIFICATIONS AND MOWING HEIGHT REQUIREMENTS
1. Provide Certified Turfgrass Sod, Premium Grade of the variety/type/blend/mixture as indicated in the Table below.
2. Thickness of Cut: Turfgrass sod shall be machine cut at a uniform soil thickness of 0.60 inch (15 mm), plus or minus 0.25 inch (6 mm), at the time of cutting. Measurement for thickness shall exclude top growth and thatch.
3. Pad Size: Individual pieces of turfgrass sod shall be cut to the supplier’s standard width and length.
Maximum allowable deviation from standard widths and lengths shall be plus or minus 0.5 inch (15 mm) on width and plus or minus five percent on length. Broken pads and torn or uneven ends will not be acceptable.
4. Strength of Turf Sod Sections: Standard size sections of turfgrass sod shall be strong enough that it can be picked up and handled without damage.
5. Moisture Content: Turfgrass sod shall not be harvested or transplanted when its moisture content (excessively dry or wet) may adversely affect its survival.
6. Mowing Height: Before harvesting, the turfgrass shall be mowed uniformly at a height of 1 to 2.5 inches (25 to 60 mm) on cool season grasses (i.e., bluegrass, bentgrass, rye and fescue), and 0.75 to 1.50 inches (20 to 40
mm) on warm season grasses (i.e., zoysiagrass, bermudagrass, St. Augustinegrass, etc.).
7. Time Limitations: Turfgrass sod shall be harvested, delivered and installed/transplanted within a period of 24 hours, unless a suitable preservation method is approved prior to delivery. Turfgrass sod not transplanted within this period shall be inspected and approved by the inspecting officer or his representative prior to its installation.
8. Thatch: Turfgrass sod shall be relatively free of thatch, up to 0.5-inch (15 mm) allowable (uncompressed).
9. Diseases, Nematodes and Insects: Turfgrass sod shall be reasonably free of diseases, nematodes and soil-borne insects.
10. Weeds: Certified, Premium grade turfgrass sod shall be free of objectionable grassy and broad leaf weeds.
Certified, Premium grade turfgrass sod shall be considered free of such weeds if the sod contains no more than 2 weeds per 50 square yards of area.
11. Delivery and Off-Loading: Turfgrass sod shall be delivered to the site and off-loaded using equipment furnished by the turfgrass sod supply contractor.
TURFGRASS VARIETY AND MOWING HEIGHT REQUIREMENTS
Cemetery Turfgrass Variety Mowing Height Range Optimal Mowing Height Fort Logan National Cemetery
Park Blend 1 to 3 inches 2 inches
SECTION 04 01 00
HEADSTONE/MARKER CLEANING
1.1. DESCRIPTION OF WORK
1.1.1. This section outlines headstone/marker cleaning services. The Contractor shall provide all supervision, professional advice/guidance, labor, parts, materials, equipment, and personnel, to provide the services defined herein.
1.1.2. The COR will determine the beginning point and ending points in each gravesite section.
1.1.3. DEFINITIONS:
1.1.3.a. “Clean” under this contract means the headstones and flat markers shall contain NO discoloration, environmental deposits, mold, mildew, moss, algae, lichen, dirt/mud, grass clippings, grass marks, bird droppings, etc.
1.2. All equipment and supplies maintained and operated by the Contractor shall be consistent and fully compliant with all applicable Federal, State, and County laws, ordinances and regulations and meet State inspection, safety, licensing, registration, and insurance requirements.
1.2.1. All in-ground vases, temporary markers, floral, commemorative, or other types of decorations (arrangements) causing interference with the headstone/marker cleaning operation shall be carefully, and in an orderly manner, moved from and after completion of the work, moved back to all gravesites by the Contractor. Prior to removal, the contractor shall verify the numbering sequence and location of the headstone/marker and associated decorations or vases.
1.2.2. Use care not to scratch or damage headstones or flat markers in any manner. Contractor shall be responsible for replacing damaged headstones or flat markers and restoring all damages caused to turf during performance of this work. Any headstones or flat markers that are chipped, marred, broken, or damaged by the Contractor shall be reported to the COR or the Cemetery Director by close of business each working day in order that the grave can be properly marked. The Contractor shall be responsible for the cost of the flat marker replacement. The cost of the replacement marker will be deducted from Contractor’s invoice(s). All flat marker replacements must be coordinated with the COR. Any existing permanent gravesite control markers, temporary contractor installed control markers, grid or sectional monuments that are disturbed, displaced, or broken shall be replaced and properly reset by a licensed surveyor at the Contractor’s expense. Curbs, roads, walks, turf, trees, utilities, etc.
existing above and below the ground that are damaged or disturbed by the Contractor during performance of contract work shall be repaired at the Contractor’s expense. The requirements of this paragraph shall be completed by the Contractor within fourteen
(14) workdays, unless otherwise agreed to by the COR.
1.3. HEADSTONE/MARKER CLEANING PROCESS
1.3.1. All in-ground vases, temporary markers, floral, commemorative, or other types of decorations (arrangements) causing interference with the cleaning of the headstones or flat markers operation shall be carefully, and in an orderly manner, moved from and after completion of the work, moved back to all gravesites by the Contractor. Prior to removal, the contractor shall verify the numbering sequence and location of the flat marker and associated decorations or vases.
1.3.2. Cleaning techniques shall demonstrate a clear understanding of, and the sensitivity to, such environmental issues as ground water contamination, wetlands, etc., and shall be consistent and fully compliant with all applicable Federal, State, and County laws, ordinances and regulations.
1.3.3. Clean water shall be used to clean headstones and flat markers. Cleaning techniques with water shall include high pressure spraying, hand scrubbing, and rinsing. When water under pressure is used, such pressure shall not be greater than 600 PSI. Excessive staining and/or discoloration may be removed with pressurized water and a stiff nylon brush (no wire brushes, bleach, or abrasive cleaners shall be permitted) followed by rinsing with clear water.
1.3.4. If water used in cleaning should soften the soil around the base of the headstone or flat marker so that the headstone or flat marker is loosened, care shall be taken not to tip the headstone or flat marker out of plumb or alignment. Headstones and flat markers shall be set and anchored firmly in place with no movement from forces subjected by the COR or inspector after cleaning has been completed.
1.3.5. Care shall be taken to protect the turf area from damage. Any turf damaged by the
Contractor shall be restored at Contractor’s expense.
1.3.6. UPRIGHT AND FLAT MARBLE HEADSTONES ONLY: After cleaning upright marble headstones, apply a final undiluted spray application of “D/2 Biological Solution” cleaner (or approved equal) per manufacturer’s recommendations to all sides of the headstone: Apply to WET stone surface using a sprayer; gently agitate with a soft bristle brush, and RINSE thoroughly with water. Contractor shall submit the required Safety Data Sheets (SDS) to the COR prior to use of any chemicals including but not limited to D/2 Biological Solution. Do not use D/2 Biological Solution on upright granite, flat granite, or bronze markers.
1.3.7. Headstones and flat markers that have been cleaned but become marked, discolored, dirt covered, or muddied due to subsequent contract work including but not limited to turf reestablishment issues shall be re-cleaned at no additional cost to the government.
Headstones and flat markers that become discolored, dirt covered, or muddied, etc.
after initial cleaning has been completed, but prior to overall project completion, shall be re-cleaned at no additional cost to the government. All headstones and flat markers are to be clean at the time of the project Final Inspection.
1.3.8. The end result of this service is that the Contractor shall provide the Government
“CLEAN” flat markers. The definition of “CLEAN” is listed above in Paragraph 1.1.3.a
- - - E N D - - -
SECTION 10 80 00
HEADSTONE/MARKER RAISE, LOWER, REALIGN, LEVEL, BACKFILL
1.1. DESCRIPTION OF WORK
1.1.1. This section outlines upright headstone raise, lower, realignment, reset, and backfill services, defined as work consisting of extracting, resetting, aligning, backfilling, and compacting headstones that are already in place which have shifted out of vertical and/or horizontal alignment and plumb, as well as inventorying and assuring accurate placement on each gravesite at the Cemetery. (The term “headstone” shall hereafter refer to both upright and flat if not specified.) The Contractor shall provide all supervision, professional advice/guidance, labor, parts, materials, equipment, and personnel, to provide the services defined herein.
1.1.3. Upright headstone descriptions:
1.1.3.a. Standard upright headstones are approximately 42 inches long, 13 inches wide, 4 inches thick, and weigh approximately 230 pounds.
1.1.3.b. Other headstone types may exist and are not included in the contract scope of work unless otherwise specified.
1.1.4. All in-ground vases, temporary markers, floral, commemorative, or other types of decorations (arrangements) causing interference with the raise and realignment of upright headstone operation shall be carefully, and in an orderly manner, moved from and after completion of the work, moved back to all gravesites by the Contractor. Prior to removal, the contractor shall verify the numbering sequence and location of the headstone and associated decorations or vases.
1.1.5. Headstones shall be removed from their sockets using wooden and/or metal clamps.
If metal clamps are used, the area that contacts the headstone must be protected with a rigid fabric that will prevent damage to and marking of the headstone. Clamps may be attached to a skid steer loader (i.e. Bobcat®) or similar machine to extract the headstone from the socket. Use care not to scratch or damage headstones in any manner.
1.1.6. WHEN HEADSTONES ARE REMOVED FROM THEIR SOCKETS, THEY
SHALL BE CAREFULLY STORED ON EACH ASSOCIATED GRAVESITE.
DO NOT place on dirt piles or mud; they should be carefully placed on each associated gravesite and protected in such a way as to prevent any soiling and be out of the way of any other work. The headstones shall be laid with front inscription side up while the headstone is lying horizontally on the ground. The headstone shall be protected from direct ground contact while lying horizontally. The protection method shall be as approved by the COR and shall be free of deterioration in weather. An approved method is to support each headstone with two wood 4X4’s. Alternate methods can be approved. Cardboard shall not be used. Wood or other suitable appropriate and attractive material shall be used to keep the headstones from contact with the soil while lying horizontally during the construction period. This also shows respect towards the families visiting the gravesites and the remains that are buried.
1.1.7. Contractor shall be responsible for replacing damaged headstones and restoring all damages caused to turf during performance of this work.
1.1.8. Crushed Rock Base Material Specifications:
1.1.8.a. Crushed Rock shall be composed of limestone, granite, dolomite, or any other hard, sound rock that is produced by blasting and then crushing.
1.1.8.b. Crushed Rock shall be clean, hard, tough, and durable fragments
(excluding) schist, shale or slate) of uniform quality throughout and free of any detrimental quantities of soft, friable, thin, elongated or laminated pieces, disintegrated material, dirt, organic matter, oil, alkali, or other deleterious substance.
1.1.8.c. Crushed Rock shall consist of hard durable fragments of particles of rock, free of stripping dirt, vegetation, and other foreign substances. Hardness:
Resistant to breaking, crushing or crumbling.
1.1.8.d. Shape: Sharp and angular (Do not use rounded pea gravel.)
1.1.8.e. Gravel or Crushed Gravel mixed with filler, sand, crushed rock, or crushed stone is NOT an acceptable substitutes.
1.1.8.f. Crushed Rock shall consist of the product obtained by crushing rock or stone so that is meets the following gradation requirements:
Sieve Size % Passing
Particle Size % of Passing 1/2 inch 100 3/8 inch 70 – 90 No. 4 50 – 72 No. 8 35 – 55 No. 40 14 – 32 No. 200 4.0- 10.0
1.1.8.g. The gradation of crushed rock shall comply with ASTM D-448. Sampling and sieve analysis shall be performed in accordance with ASTM D-75 and
ASTM C-136.
1.1.9. Compaction of Crushed Rock Base Material:
1.1.9.a. The Crushed Rock Base Material shall be compacted in lifts not exceeding 1-1/2” in thickness. Before compaction, moisten or aerate each layer as necessary to provide optimum moisture content. If the fines are dry at the time of compaction, use a very fine mist type hose and spray the Base Material sparingly. The moisture content of the material during placing operations shall be within ± 2% of the optimum moisture content as determined by ASTM D 1557. Compact each layer to 90% to 95% relative density. Do not perform compaction operations on excessively wetted soils.
1.1.9.b. Tamping Tools: Shall be approved by COR prior to use. Tamping tools shall have sufficient impact area and weight to achieve 90% to 95% compaction of the Crushed Rock Base Material. Tamping tools having wood handles and that do not have sufficient weight are not acceptable.
1.2. UPRIGHT HEADSTONE INSTALLATION, BACKFILL, AND COMPACTION
1.2.1. Headstones shall be removed from their sockets per paragraph 1.1.5.
1.2.2. Sockets shall be dug with a three (3) inch clearance at the front, back, sides and underneath the headstone. Headstone sockets shall be dug to the required depth to meet the height and alignment requirements as specified in paragraph 1.4.4.
1.2.3. All headstone sockets shall be clean and free of loose dirt and debris prior to adding
Crushed Rock Base Material.
1.2.4. In cases where headstone sockets need to be realigned/shifted, and/or re-dug, apply the following procedures:
1.2.4.a. After removal of the headstone(s), backfill and compact the exiting socket prior to digging the new socket. Backfill the existing socket with moistened Crushed Rock Base Material. Thoroughly tamp to to 90% to 95% compaction at each 1 ½”inch vertical intervals (1 ½” inch lifts), leaving the last 3 inches at the top to have tamped topsoil and grass seed/sod applied.
1.2.4.b. Contractor shall dig/excavate the new socket in accordance with the requirements in paragraph 1.2.2.
1.2.4.c. All headstone sockets shall be clean and free of loose dirt and debris prior to adding Crushed Rock Base Material.
1.2.5. Moistened Crushed Rock Base Material shall be added and heavily tamped to 90% to 95% compaction in the bottom of the sockets to provide a minimum three (3) inch footing under the base of the headstone prior to the re-installation of the headstones.
Moistened Crushed Rock Base Material shall be placed around all four sides of the headstones and compacted, providing for a minimum fourteen (14) inches depth of
Crushed Rock Base Material along the sides of the headstone as measured from the bottom of the headstone. Typically there should be three (3) inches of space remaining from the top of the compacted Crushed Rock Base Material to the ground surface to allow tamped topsoil and grass seed to be applied, to match surrounding landscaping.
The actual measurement shall vary depending on the how much the headstone was raised or lowered and will be approved by the COR.
1.2.6. The completed raised and realigned headstones shall be anchored firmly in place such that the headstones are rigid with no give or play in any direction regardless of the soil and terrain conditions. All headstones shall be firmly set and anchored in place with no movement from forces subjected by the COR.
1.3. HEADSTONE RAISE AND REALIGNMENT PROCESS:
1.3.1. Prior to starting work in each burial section, the location of the existing permanent gravesite control markers and the required gravesite row/gravesite spacing layout dimensions shall be verified and certified by a licensed surveyor and coordinated with the COR.
1.3.1.a. The Contractor shall use a licensed surveyor to validate and/or relocate any existing permanent control markers that do not conform to the section layout.
1.3.1.b. The Contractor shall use a licensed surveyor to install temporary control markers where any existing permanent control markers cannot be located or are missing.
1.3.1.c. The Contractor shall use a licensed surveyor to accurately and precisely install temporary control markers at the ends of each gravesite row.
1.3.2. Headstones shall be accurately adjusted and precisely reinstalled on the correct gravesites by utilizing temporary grave plotting maps, existing permanent gravesite control markers, temporary contractor installed gravesite control markers, and temporary contractor installed control markers at the ends of each gravesite row. All measurements, setting of string lines, and the layout of rows/columns shall be taken from existing or temporary gravesite control markers, and NOT from previously set headstones, unless otherwise directed by the COR.
1.3.3. The mean (or average) topsoil level shall be determined for the entire section to be aligned in all directions with assistance from a licensed surveyor and the COR, with approval by the COR. The Contractor shall use the mean (or average) topsoil level to allow all of the headstones in the section to be aligned vertically without having drastic changes in headstone heights (several inches) between the rows and columns of headstones in ALL directions. In irregular terrain where sloping and uneven ground conditions exist, all headstones and markers will be set at the proper height and overall level necessary to provide a smooth, flowing transition between ALL headstones in ALL directions through uneven terrain. The Contractor shall take the adjoining sections and/or terrain into consideration when determining the mean topsoil levels.
IMPORTANT: To meet the requirement of a smooth, flowing transition, the Contractor may be required to set the headstones at a height other than at the specified height above grade with approval by the COR.
1.3.4. Keystone Placement and Installation
1.3.4.a. The headstone realignment process starts by the selection of specific headstones throughout the gravesite section to be designated as “Key” stones (or “Keystones”) for use throughout the remainder of the realignment process. Keystones shall be chosen and utilized throughout the section at a maximum spacing of every 10th headstone or at a more frequent spacing as necessary in areas of sloped or rolling terrain in order to achieve a smooth, flowing transition between the rows and columns.
1.3.4.b. Each of the Keystones shall be permanently set in accordance with the requirements of paragraphs 1.2 and 1.3 at the proper location and at the proper height using a licensed surveyor with the approval of the COR. The Keystones shall be laid out to the correct dimensions to match the required measurements for the section such that the rows and columns are evenly spaced. The vertical height of the Keystones shall be adjusted to accommodate the mean (average) topsoil levels throughout the entire section in order to achieve a smooth, flowing transition between all the rows and columns.
1.3.4.c. All Keystones shall be vertically plumbed and aligned by leveling the front, back, and sides while raising or lowering the headstone as necessary to achieve a height of 25 inches for upright headstones. IMPORTANT: To meet the requirement of a smooth, flowing transition, the Contractor may be required to set the Keystones at a height other than at the specified height above grade with approval by the COR.
1.3.4.d. The COR shall approve of the quantity, location, height, and installation of the Keystones prior to the Contractor continuing with the realignment process.
1.3.5. The next step in the headstone realignment process is the Contractor selects a row and a column of headstones at the center or close to the center of the section to be realigned with approval from the COR.
1.3.6. Install heavy string lines along the front, sides, tops, and transversely of all applicable
Keystones. The string lines shall be laid out to the correct dimensions as determined by Keystones and the requirements of paragraph 1.4.1 such that the rows and columns are evenly spaced. All headstones shall be vertically plumbed and aligned by leveling the front, back, and sides while raising or lowering the headstone as required to achieve a height of 25 inches for upright headstones. IMPORTANT: To meet the requirement of a smooth, flowing transition, the Contractor may be required to set the headstone at a height other than at the specified height above grade with approval by the COR.
These measurements shall be adhered to as closely as possible and may be adjusted to suit unique site conditions with approval by the COR.
1.3.7. At the start of work in each burial section, the first row/column of reset/realigned headstones in each burial section shall be inspected by COR for appearance, spacing, depth, alignment, plumb, height, accuracy, and smoothness in grade transition. No further setting of headstones shall be done until this first row has been inspected and accepted by the COR. It is the Contractors responsibility to notify the COR 24 hours in advance of when each of these inspections will be needed.
1.3.8. All remaining headstones in all rows, columns, and transverse directions are then aligned in accordance with paragraph 1.4.4. The installation, adjusting, and setting of the remaining headstones shall meet the requirements of paragraphs 1.2 and 1.3.
1.3.9. A plus/minus (+/-) 1/8 inch maximum tolerance shall be maintained in the lateral and transverse directions in accordance with the dimensional requirements of paragraph
1.4.1. The alignment of the headstones should be checked frequently during this process because the tamping of the headstones may move the headstone out of level or off the mark on the line.
1.3.10. Headstones shall be installed to within one degree of fully vertical when measured on front and sides using a digital level.
1.3.11. The measurements between rows or columns of headstones and between the headstones within each row or column may differ from one gravesite section to the next. This condition is to be discussed with COR where this is found to occur. Some variances may be allowed by the COR in order to keep a uniform appearance of headstones being aligned.
1.3.12. Any headstones broken or damaged by the Contractor shall be reported to the COR or the Cemetery Director by close of business each working day in order that the grave can be properly marked. The Contractor shall be responsible for the cost of the headstone replacement. The cost of the replacement headstones will be deducted from Contractor’s invoice(s). All headstone replacements must be coordinated with the COR. Any existing permanent gravesite control markers, temporary contractor installed control markers, grid or sectional monuments that are disturbed, displaced, or broken shall be replaced and properly reset by a licensed surveyor at the Contractor’s expense. Curbs, roads, walks, turf, trees, utilities, etc. existing above and below the ground that are damaged or disturbed by the Contractor during performance of contract work shall be repaired at the Contractor’s expense. The requirements of this paragraph shall be completed by the Contractor within fourteen (14) workdays, unless otherwise agreed to by the COR.
1.3.13. Government furnished headstones that are permanently removed from a grave for any purpose shall be transported by the Contractor to an approved location on cemetery grounds and destroyed, ensuring that the replaced headstone cannot be used for private, personal, or commercial activities.
1.4. Measurements and standards
1.4.1. Headstones for individual graves shall be erected on the centerline at the head of the grave with the inscription facing the grave. They shall be set plumb, in a line laterally, transversely, and diagonally with the headstones of other graves within the section. All headstones shall be set using a top string line, a face of headstone string line, a side of headstone string line and a transverse string line for proper alignment.
1.4.2 All measurements and string line set-ups shall be taken from established section gravesite control markers, not from previously set headstones, unless otherwise directed by the COR. All measurements shall be made in ascending grave number order.
1.4.3 At the start of work in each burial section, the first row of initial headstones in a burial section is to be inspected by COR for appearance, spacing, depth, alignment, plumb, height, accuracy, and smoothness in grade transition. No further setting of headstones shall be done until this first row has been inspected and accepted by the COR. It is the Contractors responsibility to notify the COR 24 hours in advance of when each of these inspections will be needed.
1.4.4 The normal heights of 25 inches above finish grade for upright headstones and one (1) inch above finish grade for flat markers are the current standard height settings. Minor deviations in this standard height are permissible only to provide a uniform appearance in the top line in order to compensate for slight ground rises or depressions within a burial section. In irregular terrain where sloping and uneven ground conditions exist, all headstones and markers shall be set at proper heights and levels to provide a flowing transition through uneven terrain. In new initial burial sections where no turf is present, headstones shall be set at a height that allows for normal heights of 25 inches for upright headstones and one (1) inch for flat markers after topsoil, seed or sod is applied.
Headstone height in new burial sections shall be determined by the COR.
1.4.5 Initial and replacement headstones in old sections of the cemetery where such stones were not or cannot be set at the standard height of 25 inches shall be set at the same distance above the ground as the adjacent headstones provided they can be set with the inscription above ground level.
SECTION 31 20 00
EARTHWORK
PART 1 – GENERAL
1.1 DESCRIPTION OF WORK
A. This section includes the requirements for earthwork including, but not limited to, the following:
1. Site preparation.
2. Excavation.
3. Filling and backfilling.
4. Grading.
5. Soil Disposal.
1.2 SUBMITTALS
A. Unless otherwise noted, submittals shall be made 14 days before commencing the Work specified in this Section. The following shall be submitted.
1. Import Material: The Contractor shall submit the following for each imported material a minimum of 14 days prior to delivery:
a. Material source(s);
b. Particle size analysis in accordance with ASTM C136
2. Equipment List: The Contractor shall submit a list of equipment to be utilized for the work 7 days prior to mobilization. The list shall include equipment make, model, year, tire or track dimensions, weight and other information.
3. Construction Procedures Plan: The Contractor shall submit a plan that includes, but not be limited to, material excavation, marker surveying and identification tagging, marker removal, marker collar removal, marker transportation and storage, marker re-installation, backfill processing and placement, equipment use, borrow source utilization, and protection to be provided in the event of rain, wind, heat or other potential cause of damage 14 days prior to material construction.
4. Record Drawing Information: Record Drawings including, but not limited to, drawings showing the original and final marker locations. The preconstruction survey of the markers will be submitted to the COR in draft form for use during construction.
PART 2 – PRODUCTS
2.1 MATERIALS
A. SCREENED PLANTING TOPSOIL
1. The planting topsoil shall be a loam, sandy loam, and/or sandy clay loam conforming to ASTM D 5268-07, Standard Specification for Topsoil Used for Landscaping Purposes, with pH range of 6.5 to 7.8, a minimum of 4 percent organic material content and a maximum of 10% organic material content; free of weed seeds, noxious weeds, invasive plants, stones 1 inch or larger in any dimension, foreign matter and other extraneous materials harmful to plant growth, including, but not limited to roots, plants, sod, stones, and clay lumps.
2. Topsoil shall not be infested with nematodes, grubs, other pests, pest eggs, or other undesirable organisms and disease-causing plant pathogens.
3. Topsoil shall be friable and with sufficient structure to give good tilth and aeration.
Continuous, air-filled, pore-space content on a volume/volume basis shall be at least 15 percent when moisture is present at field capacity. Soil shall have a field capacity of at least 15 percent on a dry weight basis.
PART 3 – EXECUTION
3.1 SITE PREPARATION
A. Trees and Shrubs: Protect from damage, existing trees and shrubs which are not shown to be removed in construction area. Immediately repair damage to existing trees and shrubs by trimming, cleaning and painting damaged areas, including roots, in accordance with standard industry horticultural practice for the geographic area and plant species.
Do not store building materials closer to trees and shrubs that are to remain, than the farthest extension of their limbs. If the Contractor is obstructed by tree roots within the drip-line of a standing tree that are 2 inches in diameter or greater, the Contractor shall request an inspection by the COR. The COR will inspect and determine if any roots will be pruned.
B. Lines and Grades: With the services of a Registered Professional Land Surveyor or
Registered Civil Engineer, specified in Site Survey section, the Contractor shall survey and document existing lines and grades and submit for approval new lines and grades in order to achieve grades that provide a smooth surface free from irregular surface changes.
The intent here is not to change the overall contour of the gravesites but rather to eliminate any irregular surface changes. Grading shall comply with compaction requirements and grade cross sections, lines, and elevations indicated by the approved survey. Where spot grades are indicated the grade shall be established based on interpolation of the elevations between the spot grades while maintaining appropriate transition at structures and paving and uninterrupted drainage flow into inlets.
3.2 EXCAVATION
A. The Contractor shall perform excavation of every type of material encountered within the limits of grading to the lines, grades, and elevations indicated and as specified. Grading shall be in conformance with the Site Survey Drawings and the tolerances specified in Paragraph Grade Tolerance. Excavation areas will be cleared of vegetation prior to excavation. Satisfactory excavated materials shall be transported to and placed in fill as indicated. Unsatisfactory materials encountered within the excavation shall be excavated below grade and replaced with satisfactory materials as directed. Surplus excavated material not required for fill shall be disposed offsite.
3.3 SUBGRADE PREPARATION
A. Ground surface on which fill is to be placed shall be cleared of vegetation.
B. The subgrade shall be shaped to lines, grades, and sections shown on the Construction
Drawings, and compacted as specified. Soft or otherwise unsatisfactory material shall be removed and replaced with satisfactory excavated material or other approved material as directed. Existing low areas and those resulting from removal of unsatisfactory material shall be brought up to required grade with satisfactory materials, and the entire subgrade shall be shaped and compacted as specified.
C. All subgrade areas shall be moisture conditioned and compacted to not less than 90 percent compaction in accordance with ASTM D2922.
D. If the Contractor excavates below the lines and grades indicated on the Construction
Drawings, the Contractor shall place fill to elevate these areas back to grade at no cost to the Government.
E. The prepared subgrade surface shall be reasonably smooth, free of holes, depressions greater than 3 inch deep, or protrusion extending above the surface more than 3 inch. No overlying materials shall be placed until the subgrade has been checked and approved.
The subgrade surface shall be protected and restored if damaged.
3.5 FILL AND BACKFILL
A. Fill shall be not be dropped from a height greater than 3 feet nor excessively loaded on markers. The soil shall be placed and compacted in 4 inch deep loose lifts. The moisture content of fill placed shall be adjusted prior to placement. Each lift shall be rough graded prior to compaction. Equipment shall be operated with careful attention to protection of markers. Fill shall not be constructed on surfaces that are muddy, frozen, or contain frost.
3.6 GRADE TOLERANCE
A. Excavation and finish grades shall be constructed to within plus or minus 0.1 foot of the indicated grades. The finished surface of the excavations and fills shall be free of depressions and shall be reasonably smooth in accordance with the grade tolerances.
3.7 DISPOSAL OF UNSUITABLE AND EXCESS EXCAVATED MATERIAL
A. Remove from site and legally dispose trash and debris.
B. Remove from site and legally dispose excess soil after all fill and backfill operations are completed.
3.8 CLEAN UP
A. Upon completion of earthwork operations, clean all work areas within contract limits, remove tools, and equipment. Provide site clear, clean and free of debris. Remove all debris, rubbish, and excess material from Cemetery Property.
SECTION 32 92 00
TURFGRASS RENOVATION AND REESTABLISHMENT
1.1. WORK OVERVIEW
1.1.1. This section outlines operational procedures to be followed in sections designated for topsoil surface leveling, renovation, and re-establishment of the existing turfgrass stand. Turf renovation generally includes curb-to-curb renovation unless otherwise directed by the COR. The contractor shall provide all supervision, professional advice/guidance, labor, parts, materials, equipment, and personnel, to provide the services defined herein.
1.2. TOPSOIL AND TURFGRASS RENOVATION PROCESS:
1.2.1. The following renovation process shall begin with the approval of the COR and only when the existing turfgrass is actively growing and not in dormancy.
1.2.2. Mow and trim target area several times removing grass clippings each time. Initial mowing in this sequence should be at normal maintenance height (i.e. 2.5 to 3 inches) and subsequent mowing 2 or 3 days apart should be at lowered height (i.e. 1.5 to 2 inches).
1.2.3. After a minimum of two or more preparatory mowings and trimmings, the entire vegetated area should be treated with an application of an appropriate non-selective herbicide. Application rate should be the maximum label recommended rate for the complete elimination of perennial grass species and contaminant weeds.
IMPORTANT: Application must be made at a time when grass is actively growing for the herbicide to work. Application to be made by a licensed pesticide applicator.
Allow a minimum of 10 to 14 days to elapse for herbicide to fully translocate throughout all plant parts.
1.2.4. The COR shall confirm and approve that all vegetation (turfgrass, weeds, etc.) in the treated area is completely dead prior to removal of the dead vegetation. If any vegetation within the treated area is still vital (alive) it shall not be removed. Re-treat the vegetated area in accordance with paragraph 2.2.3 until the vegetated area is completely dead.
1.2.5. Contractor shall inventory, remove, and store all irrigation heads and cap head risers within the limits of work. Provide a copy of the inventoried equipment and materials to the COR. Provide protection of any exposed components, risers, etc. that might be damaged by renovation equipment.
1.2.6. Contractor shall locate and inventory all irrigation components: (valve boxes, gate valves, quick couplers, etc.) within the limits of work and protect the location and component access throughout contract work. Provide a copy of the inventoried equipment and materials to the COR.
1.2.7. The Contractor shall be responsible for the replacement of irrigation heads and components at finish grade, ensuring all irrigation lines and heads are free of foreign matter and operating properly.
1.2.8. Removal of Existing Turf Stand:
1.2.8.a. Power rake or verticut entire treated area to loosen and prepare the site for the removal of all residual plant debris including thatch.
1.2.8.b. Remove all residual plant debris including thatch.
1.2.9. Topsoil Preparation: Rototill area to a minimum depth of 6 inches to uniformly mix topsoil and to uniformly loosen top surface for re-grading and leveling.
1.2.10. Topsoil Leveling and Grading
1.2.10.a. Grade and compact surface of site to achieve desired finished appearance, which is to be smooth and uniformly level down each row and between each row, free of all surface ripples, depressions, high spots, low areas, ridges.
The finish grade for each gravesite section shall be smooth and uniformly level with adjacent gravesite sections and surrounding terrain. New surfaces shall be blended to existing areas.
1.2.10.b. The prepared surface (finish grade) shall be a maximum 1 inch below the adjoining grade of any surfaced area. The prepared surface (finish grade) shall be a nominal 25 inches below the top of all upright headstones and 1 inch below the top of all flat markers, or by direction and approval of the
COR.
1.2.10.c. In locations where existing burial area surface has formed “ridges” between rows, these areas shall be knocked down by grading between high and low surfaces of the rows so that finished surface is uniformly flowing from row to row, and down each row. If this process does not achieve desired smooth and uniformly flowing finished grade due to numerous depressions and low or sunken areas in the existing surface grade, import, spread and compact additional high quality topsoil of similar characteristics and texture to the soil already present on site.
1.2.10.d. Topsoil shall be free of foreign matter, any objects bigger than 25 mm (1 inch) and weed seeds.
1.2.10.e. Apply and compact sufficient topsoil to eliminate all ripples, depressions, and sunken grave areas as needed to achieve the desired smooth and uniformly level finish grade and appearance.
1.2.10.f. Firm the topsoil by rolling with a standard turfgrass roller that is half-full of water. If more weight is required to adequately firm the surface, fill the roller with water and repeat rolling as necessary. Properly firmed soil will show a foot print when walked upon, but will not allow the walker’s foot to sink into the soil
1.2.10.g. Protect finished areas from damage by vehicular or pedestrian traffic.
1.2.10.h. Install and maintain erosion control material to meet local environmental regulations. Copies of these requirements may be reviewed by contacting
1.2.11. After finish grade has been established, raise all irrigation components and install sprinkler heads to finish grade. Adjust sprinkler heads to provide full coverage and best distribution uniformity.
1.2.12. Turfgrass Sod Transplanting and Installation:
1.2.12.a. Provide certified sod as specified in Exhibit (D).
1.2.12.b. Moistening the Soil: During periods of higher than optimal temperature for the species specified, and after all unevenness in the soil surface has been corrected, the soil shall be lightly moistened immediately prior to installation of the turfgrass sod.
1.2.12.c. Starter Strip: The first row of turfgrass sod shall be laid in a straight line, with subsequent rows placed parallel to and tightly against each other.
Lateral joints shall be staggered to promote more uniform growth and strength. Care shall be exercised to insure that the pieces are not stretched or overlapped and that all joints are butted tightly to prevent voids that would cause air drying of the roots.
1.2.12.d. Sloping Surfaces: On 3:1 or greater slopes, traditional size (1 sq yd / 1 sq
m) turfgrass sod shall be laid across the angle of the slope (perpendicular), with staggered joints and secured by tamping, pegging, stapling or other approved methods of temporarily securing each piece. Large-roll turfgrass sod shall be laid in the direction of the slope, with temporary securing being at the discretion of the installation contractor.
1.2.12.e. Swales and Intermittent Waterways: The installation of turfgrass sod within drainways or intermittent waterways shall be determined after considering maximum channel velocities for storms of a designated intensity.
Traditional size turfgrass sod shall be laid perpendicular to the direction of flow and pegged to resist washout during the establishment period, while large-roll pieces shall be laid in the direction of the flow, with temporary securing being at the discretion of the installation contractor.
1.2.12.f. Watering and Rolling: The installation contractor shall water the turfgrass sod immediately after transplanting to prevent drying. As sod placement is completed in any one section, the entire area shall be lightly rolled. It shall then be thoroughly watered to a depth sufficient to ensure the underside of the new sod pad and soil immediately below the pad are thoroughly wet.
The Contractor shall be responsible for having adequate water available at the site prior to and during installation.
1.2.12.g. All turfgrass sod shall be uniform in color, leaf texture and shoot density and shall be reasonably free of weeds, diseases and other visible imperfections at acceptance.
1.2.13. Turfgrass Sod Establishment:
1.2.13.a. The establishment period for turf shall begin immediately after installation, with the approval of the COR. All turf established by the Contractor shall be irrigated and fully maintained by the Contractor until final acceptance is made by the Government. The Governments reserves the right to increase or decrease frequency of watering as deemed necessary.
1.2.13.b. Watering: Irrigate area routinely and as required to ensure complete and satisfactory sod establishment. Apply water at a moderate rate so as not to flood the plants and turf. Soil on sod pads shall be kept moist at all times to maintain moist soil to a depth of at least 4 inches. Sod shall be watered daily for the first 10 to 14 days to avoid dry out. Then, water sod routinely as needed to prevent visual wilt (blue/gray hue). In all cases, Contractor shall coordinate irrigation schedules with the COR.
1.2.13.c. Eradicate all weeds. Water, fertilize, over-seed, and perform any other operation necessary to promote the growth of grass. Replant areas void of turf 0.1 m2 (one square foot) and larger in area. Mow the new lawn at least three times, prior to the final inspection. Begin mowing when grass is two and one-half (2-1/2) inches high. Mow to a two (2) inch height per each of the three mowings prior to final inspection. String trim/stick trim the turf around the headstones at least three times, maintaining the same surrounding height of the mowed turf prior to the final inspection. Begin trimming when grass is three and one-half (3-1/2) inches high.
1.2.13.d. Mowing: Mowing shall be performed in accordance with the requirements of paragraph 1.3. The first mowing shall not be attempted until the turfgrass sod is firmly rooted and securely in place. Begin mowing sod when plant height reaches two and one-half (2-1/2) inches or as otherwise directed by
1.2.13.e. Fertilizing: Apply turf fertilizer after sod is fully rooted; established and has been mowed at least 2 times. Provide and apply a 3:1:2 ratio (preferably analysis of 21:7:14) or similar; the fertilizer shall have a 50% of nitrogen in a slow release form. Fertilizer SDS and Labels shall be submitted and accepted by the CD Agronomist and the COR prior to application.
1.2.13.f. Continue mowing and irrigation until sod is 100% established. After the sod has been established the Contractor shall request a Final Inspection in writing to the Contracting Officer and COR.
1.2.13.g. Germinated weeds must be eliminated by spraying with a typical three-way broadleaf herbicide combination product or with DriveTM or an approved equal post emergence herbicide for control of crabgrass or both if necessary to achieve 100% turfgrass cover. The seedling turfgrass shall be mowed at least three times before any herbicide treatment is applied.
1.2.14. In areas where turf work has been completed, clear the area of all debris. Any areas damaged during establishment operations must be restored to their original condition.
1.3. MOWING PROCEDURES AND EQUIPMENT FOR TURFGRASS SOD
ESTABLISHMENT
1.3.1. The Contractor shall use rear-discharge mowers or mowers with mulching decks only.
At no time is freshly mowed grass to be blown onto headstones. Riding mowers may be used if they are not operated within four (4) inches of headstones, flat markers, monuments, tree trunks or other vertical surfaces.
1.3.2. Commercial grade power trimmers and power edgers shall be used to trim grass from around headstones, monuments, markers, etc. The Contractor shall use trimmers with a plastic blade attachment to cleanly trim edges around all flat markers. Care must be taken not to chip flat markers with blades.
1.3.3. All mowing equipment shall be cleaned before mowing at the Cemetery to reduce the risk of introducing contaminant weed seeds into the cemetery turf. No equipment will be cleaned on cemetery property.
1.3.4. Cutting blades on mowing and trimming equipment must be kept sharp so that grass tips are cleanly cut and not torn or damaged.
1.3.5. Turfgrass Heights: Turf shall be maintained at a height within one (1) inch of the range as specified in Exhibit (D) or as directed by the COR. The height of grass is what is measured to get the correct cutting height. The cutting height of all mowing equipment shall be set to maintain the specified height. At no time will more than one-third (1/3) of leaf blade be removed during any single mowing.
1.3.6. Trimming: The base of headstones, trees, monuments, markers, buildings walls, fences, signs and other vertical surfaces shall be trimmed to keep the grass within one
(1) inch above the range as specified in Exhibit (D) or as directed by the COR.
Trimming operations will be considered a part of mowing and accomplished concurrently with mowing operations. A mowing cycle will not be considered complete until all trimming operations are accomplished. Areas will be mowed first, followed by the trimming operation.
1.3.7. Mowing and trimming will be accomplished free of scalping, rutting, bruising, and uneven and rough cutting. Use of cutting equipment that is out of adjustment, thereby causing streaks or irregularities, uneven cutting, plowing, or gouging of the soil is not permitted. After cutting, grass will have a uniform height.
1.3.8. Contractor shall be familiar with and utilize different mowing patterns. Changing direction and patterns reduces turf wear, prevents wheel rutting, and provides a neater appearance. All mowing around trees will be accomplished in a manner that prevents a “ringing pattern” around the tree and associated damage to turf.
1.3.9. Mowing, trimming and edging operations will not damage headstones, markers, floral or commemorative items, structures, survey monuments, irrigation equipment, etc.
1.4. TRASH, DEBRIS & LEAF REMOVAL
1.4.1. Debris and Trash: Any item, material, or foreign object not permanently attached to or planted within the cemetery grounds and boundaries. Items include, but are not limited to, fallen twigs and branches that are under ten (10) inches (25.40 cm) in diameter, paper products, cigarette butts, gum, glass and metal products, plastic and any other synthetic items, loose rock and stone over three (3) inches (7.62 cm) in diameter that are not the apparent result of an interment. Not included is the material found within trash receptacles.
1.4.2. Contractor shall collect and dispose of all debris and trash before and after each mowing and trimming event within the Cemetery.
1.4.3. Any clippings deposited on headstones, flat markers, monuments, roadways, walkways
(inside and out), flagpole bases, or other non-turf grass areas, shall be mechanically blown onto nearby turf areas when possible, or collected and disposed of on the same day as the mowing and trimming event that produced them. Any clippings deposited on sidewalks or at public visitor areas including at the Committal Shelter areas shall be swept or removed using mechanical blowers at same time mowing work is occurring.
Clearly visible windrows of clippings, as a result of infrequent mowing, will be removed and disposed of at no extra cost to the Government.
| SPECIFICATIONS |
| SECTION 00 01 10 |
| SECTION 00 01 15 |
| SPECIFICATION EXHIBIT A |
| SPECIFICATION EXHIBIT B |
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