SOW.docx

U.S. DEPARTMENT OF AGRICULTURE

FOREST SERVICE REGION 8

FRANCIS MARION & SUMTER NF’s

LONG CANE DISTRICT

RIFLE RANGES REPAIR

Forest Engineer Date

Recreation Staff Officer

RIFLE RANGES REPAIR

DIVISION 1 - GENERAL REQUIREMENTS

01010 - SUMMARY OF WORK

1. PROJECT LOCATION – Rifle Ranges are located on Long Cane Ranger District and are located as shown on the enclosed maps.

2. SUMMARY OF WORK - Contractor shall furnish all labor, equipment, materials, tools, transportation, supplies (including safety), supervision, and perform all work necessary for the repair of two rifle ranges. Construction will be performed at Long Cane Ranger District in accordance with plans, and specifications. Work shall include but not be limited to the following:

A. Demolition B. Site Grading, borrow material, compaction C. Gravel Surfacing for parking D. Wheels Stop and Accessibility sign E. Roof shelter and concrete pad F. Shooting benches G. Clean or Resurface Asphalt trail H. Cut existing hazard tree

01051 - CONSTRUCTION STAKING

1. Construction staking shall be the responsibility of the Contractor. Staking for any part of the work shall be approved by the COR prior to commencing construction on that part. Construction staking shall not be a separate pay item, but shall be considered part of each individual item of work.

2.

01300 - SUBMITTALS

1. Contractor shall submit to the COR, data sheets and/or drawings for all "or equal" substitutions proposed in lieu of the name brands specified prior to commencing any work that relates to a respective submittal. Contractor shall submit 3 copies of all submittals.

2. Contractor shall submit 3 copies of all submittals as specified in other sections of these specifications.

01471 - TEMPORARY UTILITIES

1. Electricity - Not available at the site

2. Water – Not available at the site

3. Sanitary - Not available at the site

01472 - EROSION CONTROL AND STREAM PROTECTION

1. Provide temporary erosion control measures to minimize erosion and sedimentation during and after construction.

2. The Contractor shall be responsible for protecting from damage all adjacent areas and existing improvements around or near the project site. All damage to areas caused by construction activities or equipment shall be immediately reported to the COR. The Contractor shall be responsible for repairing all damaged areas as directed by the COR.

01473 - TRAFFIC REGULATION

1. The contractor shall close traffic on FS Road 518B and FS Road 621A during construction activities. Contractor shall provide signs, and equipment, as necessary, during all construction activities. All signs shall be in accordance with MUTCD.

2.

DIVISION 2 - SITE WORK

02050 - DEMOLITION

1. GENERAL

A. This item covers the removal of the following:

· Hazard tree within construction area

· Existing shooting benches

2. PRODUCTS

A. None.

3. EXECUTION

A. All material designated to be removed shall be removed from the project site and disposed of in accordance with all state regulations.

B. All holes shall be backfilled and compacted to the density of adjacent ground.

C. Hazard tree shall be cut and placed inside of the wood line.

02210 – SITE GRADING

A. Verification of Existing Conditions. It shall be the responsibility of the Contractor to examine the site of the work and to make all investigation necessary, both surface and subsurface, to determine the character of materials to be encountered and all other existing conditions affecting the work.

B. Site Grading. Grading of site shall include all excavation, fill construction, access roads, and final grading, all in accordance with these specifications, and as shown on the drawings and as directed by the Engineer. The entire site within the area affected by construction shall be cleared and bladed. Surfaces shall be cut or filled, to the extent indicated, to finish grade stakes approved by the Engineer. Finish surfaces shall slope uniformly between spot elevations or finish contour lines shown on the drawings and away from structures. Grading tolerance will be plus or minus .1 feet from surface elevations indicated.

C. Clearing and Grubbing. All surfaces to receive compacted fill should be cleared of existing vegetation, debris, and other unsuitable materials.

D. Lines, Grades and Measures. All lines and grades will be established by the Contractor. The Contractor shall carefully preserve all survey stakes and reference points. Should any stakes or points be removed or destroyed unnecessarily by any act of the Contractor or his employees, they may be reset at the Contractor's expense. The Contractor shall inform the Engineer a reasonable length of time in advance of the times and places at which he intends to work.

2. PRODUCTS

A. The Contractor shall furnish all materials not specifically called for as furnished by the District.

3. EXECUTION

A. Excavating and grading shall be performed only when the weather conditions do not adversely affect the quality of the finished product. Any graded or excavated areas that are damaged by the effect of rain, or other weather conditions, during any phase of the construction, shall be reexcavated, regraded, and recompacted to conform to the herein-specified requirements, without additional cost to the goverment.

B. The Contractor shall perform all excavations necessary or required for the construction covered by these specifications. Excavations may be performed by either hand or machine methods and shall be of sufficient size to provide adequate space for working there, in accordance with safety regulations and practice and the Contract Drawings. Excavations shall include the removal and disposal of all unsuitable materials of whatever nature and quantity.

C. Structure Backfill. The Contractor shall place all fill to the lines shown on the drawings or prescribed by the Engineer. The material used for backfill around structures, the amount thereof, and the manner of depositing the material shall be subject to approval of the Engineer.

D. Fill, Backfill and Grading shall include all scarifying, moistening, compacting, and other manipulations of the soil necessary to obtain the required densities, crossections, lines, grades and surface finish indicated or specified.

E. The Contractor shall keep the premises occupied by him in a neat and clean condition, and free from unsightly accumulation of debris.

02611 – AGGREGATE

A. This section covers the requirements for aggregate surfacing for roads, and parking areas.

A. Provide aggregates consisting of clean, sound, durable particles of natural gravel, crushed gravel, crushed stone, sand, slag, soil, or other approved materials processed and blended or naturally combined. Provide aggregates free from lumps and balls of clay, organic matter, objectionable coatings, and other foreign materials. The Contractor is responsible for obtaining materials that meet the specification and can be used to meet the grade and smoothness requirements specified herein after all compaction and proof rolling operations have been completed.

B. Surface Aggregate shall be grade CR14

3. EXECUTION

A. Surface shall be truck spread to a thickness of 4” loose.

B. At the end of each working day the contractor shall spread and shape all surfacing hauled that day.

02612 - ASPHALT PAVING

This section covers the construction or resurfacing of existing accessible trail. Contractor shall submit a job mix formula to the COR for approval.

2. PRODUCTS

Asphalt pavement shall be Type I, Hot Bituminous Plant Mix in accordance with the South Carolina Department of Transportation (SCDOT) requirements.

3. EXECUTION

A. Trucks used for hauling bituminous mixtures shall have tight, clean, smooth metal beds that have been thinly coated with a material to prevent the mixture from adhering to the beds. Truck beds shall be drained prior to loading.

B. Bituminous pavers shall be self-contained, power-propelled units, provided with an adjustable activated-screed or strike-off assembly, heated if necessary, and capable of spreading and finishing courses of bituminous plant mix material in widths and thickness shown on the drawings.

C. Rollers shall be in accordance with the following:

· Steel-wheel rollers, other than vibratory, shall be capable of exerting a force of not less than 250 pounds per inch of width of compression roll or rolls.

· Pneumatic-tire rollers shall have smooth tread tires of equal size that will provide a uniform compacting pressure for the full width of the roller and capable of exerting a ground pressure of at least 80 psi.

D. The bituminous mixture or coatings shall not be placed when weather conditions prevent the proper handling or finishing, when underlying base course is frozen, when raining, when the average underlying surface temperatures are less than 45 degrees Fahrenheit, or when the atmospheric temperature in the shade is less than 50 degrees Fahrenheit.

E. Where it is found that the use of mechanical spreading and finishing equipment is impracticable, the mixture may be placed and finished by hand tools.

F. Initial breakdown rolling shall be accomplished while the mix temperature exceeds 250 degrees Fahrenheit. Rolling shall be completed while mix temperature exceeds 175 degrees Fahrenheit.

G. The placement of the bituminous mixture shall be continuous. Rollers shall not pass over the unprotected end of a freshly laid mixture. Transverse joints shall be formed by cutting back into the previous run to expose the full depth of the course. Heat shall be applied to contact surfaces of transverse joints just before any additional mixture is placed against the previously rolled material.

H. Material trimmed from the edges and any other discarded bituminous mixture shall be removed from the roadway and disposed of by the Contractor off of government land.

4. SAMPLING AND TESTING OF BITUMINOUS MIXTURE:

A. The top surface shall be tested by the Contractor in the presence of the COR with a 10-foot straightedge. The variation of the surface from the testing edge of the straightedge shall not deviate at any point more than 3/8 inches.

B. The total compacted thickness of the mixture shall not vary more than 1/4 inches from the specified thickness. The compacted thickness shall not be consistently below or above the specified thickness.

C. The pavement width shall not vary more than ± 1/2" from the specified width and shall not be consistently narrower or wider than the specified width.

DIVISION 3 - CONCRETE

03100 - CONCRETE FORMWORK

1. GENERAL

A. This section covers all formwork, expansion and control joints, and related accessories.

2. PRODUCTS

A. Forms shall be wood, plywood, hardboard, or metal and shall be approved by COR.

B. Form oil shall be nonstaining type.

C. Expansion joint filler shall be premolded or preshaped type made of asphalt fiber.

3. EXECUTION

A. Forms shall be built tight, in proper alignment, and adequate to resist the stresses of concrete placement without deformation.

B. Forms shall be constructed to produce the required concrete surface.

C. Expansion and contraction joints shall be formed as indicated on the drawings.

03200 - CONCRETE REINFORCEMENT

A. This section covers all concrete reinforcement and its accessories.

B. The latest editions of the following specifications and codes shall govern:

· ACI 301, Specifications for Structural Concrete for Buildings

· ASTM A615, Deformed and Plain Billet-Steel Bars for Concrete Reinforcement

· ASTM A185, Steel Welded Wire, Fabric, Plain, for Concrete Reinforcement

2. PRODUCTS

A. Reinforcing steel shall comply with ASTM A615, intermediate grade 40, unless otherwise shown.

B. Reinforcing mesh shall comply with ASTM A185 and shall be gauge and mesh indicated.

3. EXECUTION

A. Reinforcement bars and mesh shall conform to the sizes and spacings as shown.

B. Field bending and cutting will be permitted if performed in accordance with above listed code.

C. Reinforcement shall be free from dirt, oil, paint, grease, mill scale, and loose or thick rust when concrete is placed.

D. Woven wire mesh shall be hooked and/or supported during the placement of concrete slabs to insure proper embedment as detailed.

E. Anchorage and accessories shall be accurately placed as shown and held rigidly in position during placing of concrete.

F. Depth of cover, radius of bends, and deformations shall be in accordance with ACI-318.

G. All splices shall overlap a minimum of 18 inches.

03300 - CAST-IN-PLACE CONCRETE

A. This section covers cast-in-place concrete, including curing and finishing of concrete.

B. The latest editions of the following specifications and recommended practiced shall govern:

· ACI 301 - Specifications for Structural Concrete for Buildings

· ACI 306 - Recommended Practice for Winter Concrete

· ACI 305 - Recommended Practice for Hot Weather Concrete

A. Aggregate shall conform to the requirements of AASHTO M6 and M80 and shall be well graded from fine to coarse within designated limits.

B. Cement, Portland, shall comply with ASTM C150, Type 1. Supplier shall provide mill certification of compliance with specification.

C. Water shall be clean, fresh, and free from injurious amounts of minerals or foreign substances.

D. Additives, air entrainment agents shall comply with ASTM C-260.

E. Liquid curing membrane shall be Type 1-D or Type 2.

F. Concrete Mix Design

· All concrete shall have a minimum "compressive strength" of 3000 psi at 28 days.

· Concrete shall be air entrained and shall contain not less than 3% and not more than 6% entrained air determined by test procedure ASTM C-138.

· The design of the concrete mixture shall be the responsibility of the Contractor and shall be submitted to the COR for approval prior to placing any concrete.

A. "Ready-Mixed Concrete" may be employed if the time interval between mixing at the plant and discharge into the form does not exceed 1-1/2 hours.

B. All concrete shall be placed within 1-1/2 hours from the time of mixing.

· No concrete shall be placed after it has started its initial set.

· No concrete with a temperature above 90oF or below 50o shall be placed.

C. Concrete shall be placed in such a manner as to avoid segregation of the mixture.

· Concrete shall be spread in horizontal layers when practicable.

· No concrete shall be freely dropped more than 5'.

· Depositing a large quantity of concrete and flowing or working it along the forms will not be permitted.

D. Mechanical vibrators shall be used for consolidation of concrete.

· Concrete shall be consolidated within 15 minutes after placement.

· If consolidation of concrete with mechanical vibrators is impractical, hand tamping, rodding, and spading will be permitted.

E. Concrete shall be placed and protected as specified for temperature conditions.

F. Concrete plant standards and truck mixer and agitator standards shall be as recommended by the National Ready Mix Association.

G. Finishing

· All finishes shall be made without use of cement or other dusting materials.

· Concrete shall be struck to proper grade and surface finished with float trowels.

· At all exposed formed surfaces, remove all ties, fill all form tie holes and imperfections; i.e., "honeycombing", with dry cement mortar, remove all lines, and then "sack" or finish to match adjacent surfaces.

· The building floor surface shall be broom finish.

· All edges and control joints, shall be edged with a minimum 1/2 inch radius edging tool

· Concrete shall be protected against rapid drying and kept moist for 7 days by covering with curing paper with edges sealed, burlap, canvas, Type 1-D or Type 2 liquid membrane curing compounds, or by sprinkling.

4. TESTING

A. Concrete shall have a minimum 28-day breaking strength of 3000 psi when tested in accordance with ASTM C-39.

B. At the option of the COR, the Contractor shall make a minimum of two (2) test cylinders from each concrete truck. The test cylinders shall be made in accordance with ASTM C31, stored on the site and protected from damage. Each cylinder shall be labeled to identify which section of the project the concrete was incorporated. The Contractor shall deliver the cylinders to a Forest Service approved laboratory for testing. The cost of testing (breaking) the cylinders will be paid for by the Contractor.

C. Slump shall not exceed 3" for vibrated concrete or 5" for nonvibrated concrete. Contractor shall perform slump testing in accordance with ASTM C143 as may be directed by the COR.

DIVISION 6 - WOOD AND PLASTICS

06100 - ROUGH CARPENTRY

A. This section includes rough carpentry.

B. Grading and Standards

· Douglas Fir, Western Hemlock, Western Larch, Ponderosa Pine, White Fir, and Western Red Cedar shall conform to the latest trading rules of the Western Wood Products Association. All lumber shall be grade certified by the Association.

· Southern Pine shall conform to the latest grading rules of the Southern Pine Association. All lumber shall be grade certified by the Association.

· All plywood shall conform to PS-1-74 and to the latest standards of the American Plywood Association or Hardwood Plywood Institute. All plywood shall be certified by the appropriate grade trademark of the Association.

· Millwork shall conform to the "Manual of Millwork" of the Woodwork Institute.

· Kiln dried lumber shall not exceed 15% moisture content as determined by ASTM Test Method D-2016; all other lumber shall not exceed 20%.

· Pressure treated lumber shall be treated in accordance with the following:

1. 0.4 PCF ACQ for ground contact

2. 0.25 PCF ACQ for above ground contact.

A. Structural framing shall be Douglas Fir #2; Hemlock #2; Southern Yellow Pine #2, appearance grade.

B. Boards, furring, and formwork shall be Douglas Fir, Construction Grade; Hemlock, Construction Grade; Southern Yellow Pine, Construction Grade.

C. Plywood sheathing shall be exterior type "C"- CEXT-APA, as defined by the American Plywood Association. Thickness shall be as shown on the drawings.

D. Rough Hardware

· Furnish all items of rough hardware required to complete the work. Bolts, nuts, and washers shall be hot-dipped galvanized, conforming to ASTM A 153.

· Roof rafters and joists shall be attached to top plates with "hurricane" connectors as manufactured by Simpson or equal.

E. Hardware fastener, nails, nuts, framing anchors, and washers shall be hot-dipped galvanized in accordance with AASHTO M-232

F. Use dip galvanized deck screw for benches.

A. Anchor nailers, blocking, etc., to concrete as indicated on the drawings. Make connections secure at all bearing points.

B. Roof Sheathing

· Install sheathing perpendicular to run of rafters and nail in accordance with manufacturer's instructions.

· As soon as sheathing is in place, cover all roof areas with standard asphalt impregnated 30 pound building felt.

C. All framing and/or blocking at roof penetrations or in contact with roofing or flashing, and all framing, top plates, and/or blocking in contact with concrete or concrete block shall be pressure treated.

DIVISION 7 - MOISTURE CONTROL

07412 - PREFORMED METAL ROOFING

A. This section covers all metal roofing and related items.

B. Surfaces to which roofing is to be applied shall be smooth, even, sound, clean and dry, and free of defects which would adversely affect application of this work. Surfaces which do not meet the tolerances imposed within the sections governing their installation or which contain defects shall be repaired or replaced prior to installation of this work.

C. Deliver roofing materials to the job site in manufacturer's original unopened packaging and store in accordance with to their recommendations.

A. Fabral 12' Hickory Moss Steel Ribbed Roof Panel Distributor, Lowes Hardware Store B. 29 gauge galvanized steel, Anti-siphon side lap design for optimum weather tightness Fire resistant - UL 790 Class A, Hail impact resistant - UL 2218 Class 4, 25 year paint system warranty C. Color – Brown (submit color chart) D. Underlayment shall be one layer of 30lb. asphalt saturated felt or two (2) layers of 15lb. felt with all edges lapped a minimum of 4”, installed perpendicular to roof slope.

E. Fasteners for metal roofing panels shall be 1” minimum screws as furnished by the metal roofing manufacturer. Screws shall be installed as recommended by the roofing manufacturer.

F. Sealant shall be General Electric “Silpruf”, or equal, silicone sealant. Use in accordance with manufacturer’s directions.

A. Install one (1) ply of felt (30lb.) or two (2) plies of 15lb. felt to structure in accordance with written instructions of metal roofing manufacturer. Install metal roof panels in accordance with written instructions of manufacturer.

B. Contractor shall cover uncompleted areas of the roof with plastic and secure in place during inclement weather or at the end of a workday if inclement weather is forecasted.

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