Attachment001-SupplementalSpecs.pdf

Attachment 001 – Supplemental Specifications

Soda Springs and Toketee Lake Site Improvements

Specifications under "CONSTRUCTION SPECIFICATION INSTITUTE (CSI)

Lists of Contents 1

01200 - Mobilization 2

02072 - Construction Staking 3

02104 - Clearing and Grubbing 5

02210 - Earthwork 6

02240 - Crushed Aggregate Surface 8

02872 - Benches 11

03100 - Concrete Formwork 13

03200 - Concrete Reinforcement 16

03300 - Cast-In-Place Concrete 19

05500 - Fabricated Steel 25

06100 - Rough Carpentry 28

06311 - Presevative Treated Lumber 30

07700 - Sealants 33

09900 - Painting 35

SECTION 01200

MOBILIZATION PAYMENT PROCEDURES

PART 1 - GENERAL

SUMMARY

This work shall consist of preparatory work and operations necessary for the movement of personnel, equipment, supplies, and incidentals to the project site, and for all other work and operations that must be performed or that cause costs to be incurred prior to beginning work on the various items on the project site.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION (NOT USED)

PART 4 - MEASUREMENT AND PAYMENT

PROGRESS PAYMENTS WILL BE MADE AS FOLLOWS:

When 5 percent or more of the original contract amount is earned from other pay items, 50 percent of the amount for mobilization, or 5 percent of the original contract amount, whichever is less, will be paid.

When 10 percent or more of the original contract amount is earned from other pay items, 100 percent of the amount for mobilization, or 10 percent of the original contract amount, whichever is less, will be paid.

Upon completion of all work on the project, any unpaid amount for mobilization will be paid.

The total of all payments shall not exceed the original contract amount for this item.

BASIS OF PAYMENT

Payment will be made under:

PAY ITEM DESCRIPTION PAY UNIT

01200-1 Mobilization Lump Sum

END OF SECTION

SECTION 02072

CONSTRUCTION STAKING

GENERAL

Description

This section specifies performance of construction staking for all structures and site work for the project in accordance with the drawings and specifications. The work includes furnishing all labor, equipment, materials, instruments, transportation, and other incidentals necessary to complete the construction staking in accordance with these specifications and acceptable engineering practice.

PRODUCTS

Materials

Identification stakes shall be of sufficient length to provide a solid set in the ground and to provide space for marking above ground when applicable.

The top two inches of all stakes shall be painted and marked with plastic flagging.

Paper for survey notes shall be moisture resistant. Notes shall be contained in books with covers that will protect the contents and retain the pages in numerical sequence during field use.

EXECUTION

Survey Requirements

All notes shall become the property of the Forest Service upon completion of the project.

Errors shall be deleted by lining out.

Date, crew names and positions, instrumentation, and weather shall be recorded in the notes at the beginning of each day's work.

Control points have been established on the ground for this project. The Contractor shall establish all additional vertical and horizontal control from these points.

Control shall be established using nominal 1-inch by 1-inch hubs or spikes, when hubs cannot be set, spikes shall be of sufficient length to provide a solid set. Identification stakes shall be installed adjacent to all control locations.

The Contractor shall set a sufficient number of control locations for the platform to provide precision requirements set forth in Specification 02210 - Earthwork.

Vertical and horizontal control for the viewing platform, and sign structures shall be +/-0.10 feet. Survey staking by the contractor shall provide enough control within specification tolerances to construct an acceptable and completed project.

Construction work shall not begin until the stakes, marks, and controls established by the Contractor have been approved in writing by the COR. Approval of the construction staking work shall not relieve the Contractor of the responsibility for maintaining the survey work until construction has been completed and for correcting errors, whether the errors are discovered during performance of the survey or in subsequent phases of the project.

Contractor shall remove all stakes upon completion of the project.

END OF SECTION 02072

SECTION 02104

CLEARING AND GRUBBING

GENERAL

Description

This section specifies clearing, grubbing, removing, and disposing of all vegetation material within the limits.

Clearing

Clearing limits are defined as the edge of the finished grading or surfaced area, including viewing platform, sign structures and fence lines. Other trees to be removed outside clearing limits will be individually flagged by the COR. Trees shall remain on site and be placed as designated by the COR.

Minimize disturbance of existing landscape.

Remove all vegetative material from the area and place in disposal site. Designated disposal site shall be at Foster Creek Quarry located on Forest Road 2801-050, T.26S, R2E, Sec. 36, or Slide Creek Quarry located on Forest Road 3402-200, T.26S, R3E, Sec. 13.

Clear brush and remove roots adjacent to clearing limits that have irreparable damage caused during construction operations. Prune branches broken during construction. Prune flush with the branch collar.

Do not remove trees or other vegetative material outside the clearing limits unless shown on Drawings or approved by the COR.

Grubbing

Grub stumps, shrubs, brush, and roots as shown on the drawings. Remove all roots exposed in the area of excavation.

Debris Disposal

Unless otherwise specified, remove all debris and dispose at designated disposal area.

END OF SECTION 02104

SECTION 02210

EARTHWORK

GENERAL

Description

This section specifies earthwork within the clearing limits.

Construction Tolerances

The maximum allowable deviation from construction stakes and drawings is as follows for the excavation & backfill for viewing platform, sign structures and fences:

Subgrade Width + 0.2 Foot Subgrade Elevation - 0.1 Foot Centerline Alignment +/- 0.1 Foot Slopes, Excavation and Embankment +/- 1.0 Percent

Excavation and Fill Material

Rocks exceeding 6 inches in any dimension shall not be incorporated into any fill under footings or within 1 foot of areas designated for asphalt, 8 x 8 treated timber borders, or Portland cement concrete surfacing. Rocks exceeding 6 inches in any dimension may be used as riprap. All sticks, root wads, clods, or other deleterious material shall be stockpiled as shown on the drawing.

Provide COR written notice at least 7 days in advance prior to starting excavation.

Footings and Foundations

Subgrade: After excavating to the required elevations, subgrade shall be moistened or dried to a uniform moisture content suitable for compaction. Compaction equipment conforming to the requirements below shall be operated over the full width of the subgrade a minimum of three (3) passes or until visual displacement ceases.

Foundations: Consider the elevations of the bottoms of footings and foundations shown on the drawings to be approximate elevations. The COR may order, in writing, changes in the elevations when necessary to secure a satisfactory foundation. Excavate to the depth shown on the drawing to provide a firm foundation of uniform density throughout its length and width. Do not disturb native material below the foundation depth. For footing to be placed on solid rock or interlocking boulders, clean the foundation surface of loose or disintegrated material. For footing to be placed on other than rock, the foundation shall be moistened or dried to a uniform moisture content and compacted immediately before concrete is placed.

Fill material shall be placed in 6-inch maximum lifts. Material shall be moistened or dried to a uniform moisture content suitable for compaction. Compaction equipment conforming to the requirements below shall be operated over the full width of each lift a minimum of three (3) passes or until visual displacement ceases. Do not place backfill against concrete that is less than 3 days old, or until 90 percent of the design strength is achieved.

Finished work site shall be graded to smoothly blend into existing contours.

Grade to uniform levels or slopes between points where grades or contours are given, round surfaces at abrupt changes in levels. Finished grades shall allow for drainage, not ponding of surface water.

Protection of Existing Objects

Protect from damage all objects, including brush and trees, not designated for removal.

Objects shown on the Drawings, but damaged by the Contractor, shall be repaired or replaced at the Contractor's expense.

Compaction Equipment

Compaction equipment shall be capable of obtaining compaction requirements without detrimentally affecting the compacted material. The compacting units may be of any type, provided they are capable of compacting each lift of material as specified, unless otherwise approved by COR:

(a) Mechanical Tampers may be used in areas where it is impractical to operate larger compaction equipment.

END OF SECTION 02210

SECTION 02240

CRUSHED AGGREGATE SURFACE FOR PLATFORM, FOOTINGS and SIGN BASES

PART I - GENERAL

1.1 This item shall consist of hauling, and placing of one or more courses of aggregate bases or surface courses, on an approved subgrade or base for Pay Item 02100.

Government furnished material is provided for: Platform, footings and sign base structures.

1.2 Method of Measurement - Measurement of crushed aggregate and surface coarse will be as follows.

A. The quantity shall be included as part of the lump sum item. In this case, there will be no separate measurement or payment for aggregate.

1.2 Reference Specifications (Not Used)

PART II – PRODUCTS (NOT USED)

PART III - EXECUTION

3.1 Preparation of Subgrade - The subgrade shall conform to the grades and lines shown on the drawings. Rippable rock, and boulders shall be excavated to a minimum depth of 6 inches below subgrade unless otherwise shown on the drawings and replaced with suitable cushion material obtained from within the excavation area or from sources approved by the Contracting Officer. Rocks larger than 4 inches that do not protrude above the subgrade more than one third of the depth of the base or surface course, or 3 inches, whichever is less, may be left in place.

Suitable excavated material shall be utilized in the preparation of the sub grade.

Unsuitable and excess suitable, excavated material shall be disposed of as directed by the Contracting Officer. Embankments shall be placed in compacted layers not exceeding 6 inches (loose measure).

3.2 Mixing and Placing - Water shall be added to the aggregate in an amount necessary to provide the moisture content for compacting to the specified density. The moisture content of the aggregate shall be uniform throughout. The aggregate shall be spread in a uniform layer, with no segregation of size, and to a loose depth that shall have the required thickness when compacted. Aggregate base or surface course that exceeds 6 inches, shall be placed in two or more layers of approximate equal thickness. Hauling equipment shall be dispersed over the surface of the previously constructed layer to minimize rutting or uneven compaction.

3.3 Compaction - Each layer of aggregate shall be compacted with three (3) passes or visual displacement. The surface of each layer shall be bladed during compaction operations to remove irregularities and produce a smooth, even surface. Compaction equipment shall be capable of obtaining compaction requirements without detrimentally affecting the compacted material.

3.4 Thickness Requirement - The thickness of the compacted aggregate shall not vary more than 1/2-inch from the thickness shown on the drawings. The compacted thickness shall not be consistently below the specified thickness.

END OF SECTION 02240

SECTION 02872

BENCHES

PART 1 – GENERAL

1.01 SUMMARY

A. This section specifies furnishing and installing log style benches.

1.02 RELATED SECTIONS

A. 06100 - Rough Carpentry

B. 07900 - Sealants

C. 09900 - Paints and Coatings.

PART 2 - PRODUCTS

2.01 MATERIALS

A. Timber.

1. B or better Industrial Clear grade hand peeled Port Orford Cedar for bench legs and seats, WCLIB “Standard Grading Rules, No. 17.”

B. Wood Dowels.

1. Round wood dowels.

C. Paint.

1. Brown-pigmented epoxy.

PART 3 - EXECUTION

3.01 CONSTRUCTION

A. Log Legs.

1. Log Legs.

a. Install with heart face down and sand top and seat planks smooth with medium grit sandpaper.

b. Bolts will be driven deeper into wood and capped with wooden dowels.

2. Log Legs and Seats.

a. Construct log legs and seats

2. Finish all wooden surfaces with two brush coats of stain.

a. Finish all wooden surfaces as follows:

1) After all cutting, hole drilling, and sanding is completed, but before erection, apply 1 brush coat of brown-pigmented epoxy to all surfaces allowing some to flow into drilled holes.

2) After erection, lightly sand first coat and apply 1 additional brush coat of brown-pigmented epoxy. Quantity of pigment added to epoxy shall be such that wood grain cannot be seen through the finish and sunlight will not penetrate.

PART 4 - MEASUREMENT AND PAYMENT

4.01 Method of Measurement

A. Measurement will be for the number of completed benches furnished and installed.

4.02 Basis of Payment

A. Payment will be made at the Contract unit price for each Bench accepted.

B. Payment will be made under:

PAY ITEM DESCRIPTION PAY UNIT

02872-1 Benches Each

END OF SECTION

SECTION 03100

CONCRETE FORMWORK

PART 1 - GENERAL

1.1 CONTRACT CONDITIONS

A. Work of this Section consists of any formwork required by the contract.

1.2 PRODUCTS INSTALLED BUT FURNISHED UNDER OTHER SECTIONS

A. Build in as directed by those trades, without weakening or defacing formwork.

1.3 RELATED WORK SPECIFIED IN OTHER SECTIONS

A. Concrete reinforcement including bar supports and reinforcement accessories:

Section 03200.

B. Cast-in-place concrete: Section 03300.

1.4 DESIGN AND ENGINEERING

A. Formwork design and engineering, as well as construction, are Contractor's responsibility.

1.5 CONTRACT QUANTITIES

A. Incidental to other Pay Items.

1.6 COORDINATION

A. Coordinate with other trades affecting or affected by work of this Section.

1.7 PRODUCT DELIVERY, STORAGE, AND HANDLING

A. Protect against damage and discoloration.

PART 2 - PRODUCTS

2.1 WOOD PLANK FORMS

A. Material: Lumber.

B. Size: Support concrete at rate poured.

2.2 FORM TIES

A. Do not use wood spacers.

2.3 EMBEDDED ITEMS

A. Steel Reinforcement: Refer to Section 03200.

B. Anchor Bolts: Refer to Section 05500.

2.4 FORM TREATMENT MATERIALS

A. For wood forms: Clean water. Contractor may submit request the use of form release compound.

3.1 PROTECTION

A. Protect other work against damage and discoloration caused by work of this Section.

3.2 INSTALLATION

A. Conform to shapes, lines, and dimensions shown on Drawings.

B. Brace and tie together to ensure that position and shape are maintained.

C. Make tight to prevent concrete leakage.

D. Arrange joints as indicated or directed.

3.3 EARTH FORMS

A. Earth forms are not permitted

3.4 BRACING

A. Provide as required to meet load requirements.

B. Protect against undermining or settlement when placed on ground.

C. Anchor as required to prevent upward or lateral formwork movement during concrete placement.

3.5 ALLOWABLE TOLERANCES FOR CONCRETE FORMWORK

A. Variation from level:

1. 1/8 inch in 10 ft.

2. 1/4 inch in any bay or 20 ft. maximum.

3. 3/8 inch in 40 ft. or more.

3.6 EMBEDDED ITEM INSTALLATION

A. Steel Reinforcement: Refer to Section 03200.

B. Anchor Bolts:

1. Set with templates to assure accurate bolt positioning.

3.7 ADJUSTMENTS

A. Reposition to true alignment prior to, during, and after concrete placement, if necessary.

B. During concrete placement, in areas where formwork develops weakness, settlement, or distortion, stop concrete placement, remove placed concrete, and remove or strengthen formwork.

3.8 FORM REMOVAL

A. Leave forms and shoring in place until concrete has attained sufficient strength to safely support own weight and imposed loads. Forms shall remain in place for a minimum of three days after concrete is poured.

B. Remove forms at time and in manner to insure safety of structure, and without concrete surface damage.

C. At exposed concrete, form-removal time shall be uniform to avoid color differences.

3.9 FORM RE-USE

A. Withdraw projecting nails and clean concrete form contact surfaces. Replace with new material when necessary or when directed.

3.10 PRODUCT CLEANING AND REPAIRING

A. Including work of other trades, clean, repair and touch-up, or replace when directed, products which have been soiled, discolored, or damaged by work of this Section.

B. Remove debris from project site upon work completion or sooner, if directed.

END OF SECTION 03100

SECTION 03200

CONCRETE REINFORCEMENT

A. Work of this Section consists of any reinforcement specified in this contract.

1.2 RELATED WORK SPECIFIED IN OTHER SECTIONS

A. Platform: Section 06100

B. Concrete formwork: Section 03100.

C. Cast-in-place concrete: Section 03300.

1.3 CONTRACT QUANTITIES

A. Provide all required steel reinforcement, incidental to other Pay Items.

1.4 COORDINATION

A. Coordinate with other trades affecting or affected by work of this Section.

1.5 PRODUCT DELIVERY, STORAGE, AND HANDLING

A. Protect against damage and coverage by mud or ice.

1.6 FIELD MEASUREMENTS

A. Verify prior to fabrication.

2.1 BARS

A. Material: Steel.

B. Manufacturing Standard: ASTM A-615 or AASHTO M31.

C. Grade: 60.

D. Sizes: See Drawings.

2.2 ACCESSORIES

A. Material: Concrete or metal. Hot-dip galvanize any metal accessories adjacent to exposed concrete surfaces.

B. Manufacturing Standard: Manual of standard practice, published by concrete Reinforcing Steel Institute; 180 N. LaSalle Street; Chicago, IL 60601. Copies can be obtained from Institute.

C. Extent of work: Provide all accessories necessary for proper reinforcement placement, spacing, support, and fastening.

2.3 FABRICATION

A. Follow Manual of Standard Practice published by Concrete Reinforcing Steel

Institute.

2.4 ALLOWABLE FABRICATION VARIATION FROM DRAWING DIMENSIONS

A. Sheared Length: Plus or minus 1 inch.

3.1 EXISTING CONDITIONS

A. Verify that surfaces to receive reinforcement are accurately sized and located, square, plumb, rigid, secure, and otherwise accurately prepared.

B. Do not start work until conditions are satisfactory.

3.2 PROTECTING WORK OF OTHER SECTIONS

A. Protect against damage and discoloration caused by work of this Section.

3.3 INSTALLATION.

A. Bending:

1. Bend bars without heat.

2. Field bending partially embedded bars, not permitted without COR's approval.

B. Placing:

1. Secure against displacement.

C. Spacing:

1. Clear distance between parallel bars, including splices, unless otherwise permitted by Code, not less than:

a. Nominal bar diameter.

b. 1-1/2 times maximum concrete aggregate size.

c. 1 inch.

D. Splicing:

1. Do not weld or tack weld reinforcement splices.

2. Minimum lap at splices:

a. At bar reinforcement: 36 bar diameters at concrete

E. Protective concrete covering:

1. Conform to:

a. Concrete cast against and permanently exposed to ground: 3 inches.

b. Concrete not cast against ground, but permanently exposed to ground or weather:

(1) No. 6 through No. 18 bars, if any: 2 inches.

(2) No. 5 bars and smaller, if any: 1-1/2 inches.

3.4 ALLOWABLE PLACEMENT VARIATION FROM DRAWING DIMENSIONS

A. Concrete cover: Plus or minus 1/4 inch.

B. Spacing between bars: 1/4 inch.

C. Transverse bars: Space evenly within 2 inches of stated separation.

D. Bar relocation to avoid interference with other reinforcement, conduits, or embedded items: 1 bar diameter, unless otherwise approved by COR.

3.5 PRODUCT CLEANING AND REPAIRING

A. Prior to concrete placement, remove loose flaky rust, mud, oil, and other bond-reducing coatings.

B. Including work of other trades, clean, repair and touch-up, or replace when directed, C. Remove debris from project site upon work completion or sooner, if directed.

END OF SECTION 03200

SECTION 03300

CAST-IN-PLACE CONCRETE

A. Work of this Section consists of any cast-in-place concrete in this contract.

1.2 RELATED WORK SPECIFIED IN OTHER SECTIONS

A. General Requirements: Section 01000

B. Concrete Formwork: Section 03100

C. Concrete Reinforcement: Section 03200.

1.3 CONTRACT QUANTITIES

A. Incidental to other Pay Items.

1.4 COORDINATION

A. Coordinate with other trades affecting or affected by work of this Section.

1.5 PRODUCT DELIVERY, STORAGE, AND HANDLING

A. Protect against damage and discoloration.

B. Conform to ASTM C-94.

1.6 WEATHER REQUIREMENTS

A. General:

1. Follow standard Specification for cold and warm weather concreting, ACI 306 and 305 respectively; copies of which can be obtained from the Institute at Box 19150; Redford Station; Detroit, MI 48219.

B. Cold Weather:

1. Do not place concrete during cold weather until protection materials and equipment are at or near project site.

2. Place no concrete on frozen subgrade.

3. Remove ice and snow from reinforcing, forms, embedded items, and other contract surfaces.

4. Raise and maintain temperature of all surfaces in contact with concrete above

40°F prior to concrete placement.

5. Do not use salts or chemical admixtures to prevent concrete freezing.

6. Terminate any water curing at least 24 hours before any anticipated freezing temperatures.

7. Locate and direct any heaters or ducts so as not to cause overheating or over-drying of concrete or create fire hazards. Directly exhaust flue gases from any combustion heaters to outside of any enclosures.

8. Following protection period, allow concrete to cool gradually.

9. Assume responsibility, including costs, for testing suspected frozen concrete.

10. Remove and replace freeze-damaged concrete at Contractor's expense.

C. Warm Weather:

1. When air temperature exceeds 85°F or when wind exceeds 10 MPH place concrete in accordance with the following requirements:

2. Maximum concrete temperature at time of placement: 70°F.

3. Mix concrete minimum possible time, and place as soon as possible thereafter.

4. Sprinkle forms, reinforcing, embedded items, and subgrade with cool water immediately prior to concrete placement.

5. Protect unstripped formwork and exposed concrete surfaces against excessive drying with water spray, or other approved method.

6. Assume responsibility, including costs, for testing damage-suspected concrete.

7. Remove and replace damaged concrete at Contractor's expense.

1.7 ADVANCE NOTICES

A. Notify COR at least 24 hours before intended concrete placement.

B. No concrete placement until formwork and reinforcement have been inspected and approved in writing by COR.

2.1 PORTLAND CEMENT

A. Manufacturing Standard: ASTM C-150.

B. Type: I-II.

C. Manufacturer and Brand: Use only one for all exposed concrete.

2.2 AGGREGATE

A. Manufacturing Standard: ASTM C-33.

B. Maximum Size: 1-1/2 inch and not more than one-fifth of narrowest dimension between sides of forms, one-third of depth of slab, not three-fourths of narrowest space between reinforcing bars.

C. Source: Aggregates for exposed concrete shall be of matching size and shall come from same source.

2.3 ENTRAINED AIR

A. Manufacturing Standard: ASTM C-260.

B. Prohibited Admixtures: Calcium Chloride, Thiocyanates, or admixtures containing more than 0.05% Chloride Ions.

C. Mixture: 3% to 5% of concrete volume.

D. Extent of Work: Provide in all concrete.

2.4 WATER REDUCING ADMIXTURES

A. Manufacturing Standard: ASTM C-494.

B. Type: A.

C. Extent of work: May be used at contractor's option.

2.5 CALCIUM CHLORIDE

A. Not approved for use.

2.6 BONDING AGENT

A. At dry surfaces: Euclid Euco Weld, JEF Con-Bond, Sonneborn Sonocrete, or approved. Submittal required.

B. At damp surfaces: Euclid Euco Epoxy 452 MV or 620, Sika Sikadur Hi-Mod, or approved. Submittal required.

2.7 NON-SHRINK GROUT

A. In accordance with Section 04100.

B. Extent of Work:

1. Around support bracket pins.

2. Provide if and where shown on Drawings or as necessary.

2.8 CURING COMPOUNDS

A. At Exterior Flatwork:

1. Type: White pigmented and non-yellowing.

2. Manufacturer and Brand: Contractor's choice.

3. Manufacturing Standard: ASTM C-309 type 2, class A.

b. 1. Submittal: Required.

2.9 MIXING CONCRETE

A. General:

1. Ready-mix type conforming to ASTM C-94.

2. Assume responsibility for mix design and product performance.

3. Submit mix designs for COR approval, include all admixture data.

B. Design Strength:

1. Minimum Density: 145 pcf, plus or minus 5%.

2. Minimum 28-day compressive strengths, locations, and minimum cement content as follows: a. 3500 psi concrete; 6-1/2 sacks per cu. yd.

C. Maximum Slump:

1. The following slumps at any time are maximum. Add water only with COR’s permission.

a. 4 inches

2. Concrete with greater slump, or that shows bleeding or aggregate separation as it comes out of delivery truck, will be rejected and must be replaced.

3. Do not add water after acceptable slump test has been obtained.

4. Maximum Water/Cement ratio allowed is 0.49 (pounds per pounds).

PART 3 - EXECUTION

3.1 EXISTING CONDITIONS

A. Verify that formwork, reinforcement, and embedded items are accurately and securely placed, clean, water and frost-free, and ready to receive concrete.

3.2 PROTECTING WORK OF OTHER SECTIONS

A. Protect other work against damage and discoloration caused by work of this Section.

3.3 SURFACE PREPARATION

A. Remove foreign matter from surfaces and areas to receive concrete.

B. Sprinkle subgrades and other porous surfaces with water to eliminate suction.

C. Keyed Joints:

1. Minimum Depth: 1-1/2 inches.

2. Provide at joints between walls, slabs, and footings.

D. Reinforcement: Continue across joint, unless otherwise shown on Drawings.

3.4 PLACING CONCRETE

A. Convey and place by methods which will prevent material separation and loss.

B. Deposit continuously, or in layers that will not form seams or weakened planes; where seams or weakened planes are unavoidable provide construction joints as specified hereunder.

C. Do not convey pneumatically-placed concrete through aluminum pipe.

D. Do not retemper or use set concrete.

E. Maximum height of vertical drop without use of trunk, placement ports in sides of formwork, or other approved method is 5 ft.

3.5 CONSOLIDATING CONCRETE

A. Employ mechanical, high-frequency vibrators to consolidate concrete around reinforcement, into corners and angles of forms, and to exclude rock pockets, air bubbles, and honeycomb.

B. Hold vibrator in one spot no longer than 5 seconds; keep in constant motion, insert and withdraw at points approximately 18 inches o.c.

C. Maintain vibrator in vertical position when penetrating concrete.

D. Transporting concrete with vibrator not permitted.

E. Maintain spare vibrator at jobsite during concrete placement.

3.6 VOIDS AND GRAVEL POCKETS

A. Repair where necessary and where directed by COR.

3.7 CONCRETE FINISHES

A. Required preparation work:

1. For non-bearing top surfaces, evenly slope to drain at 3/16 inch per foot, unless otherwise shown on Drawings.

B. All exposed concrete shall be rub finished, unless shown otherwise on the drawings.

C. Broom finish: Screed and tamp concrete to bring fine particles to surface. Bring to true surfaces with wood or carpet float. Slightly roughen surfaces with wet, fine or medium hair broom.

3.8 CURING

A. Minimum Curing Periods:

1. High-early strength cement, if used: 3 days.

2. All other cement: 7 days.

B. Minimum curing air temperature: 50 deg F.

C. Flatwork: Immediately after flatwork is finished, treat concrete with curing compound applied in accordance with Manufacturer’s instruction.

3.9 NON-SHRINK GROUT INSTALLATION

A. Follow Manufacturer's instructions.

B. Do not retemper set grout.

3.10 PRODUCT CLEANING AND REPAIRING

A. Including work of other trades, clean, repair and touch-up, or replace when directed, products which have been soiled, discolored, or damaged by work of this Section.

B. Remove debris from project site upon work completion or sooner, if directed.

3.11 PROTECTING COMPLETED WORK

A. Protect against damage and discoloration.

END OF SECTION 03300

SECTION 05500

FABRICATED STEEL

PART 1 - GENERAL

1.1 CONTRACT CONDITIONS

A. Work of this Section consist of all fabricated steel and hardware in this contract.

Work also entails hot dipped galvanization of all steel products unless designated otherwise.

1.2 WORK INCLUDED

A. All steel components, hardware and custom steel items as shown on drawings or necessary for a completed project.

1.3 RELATED WORK SPECIFIED IN OTHER SECTIONS

A. Reinforcing steel for concrete: Section 03200.

B. Preservative Treated Lumber: Section 06311

C. Painting: Section 09900

1.4 COORDINATION

A. Coordinate with other trades affecting or affected by Work of this Section.

1.5 SHOP DRAWINGS & PRODUCT CERTIFICATION

A. Required

1.6 PRODUCT DELIVERY

A. Include all required bolts and other fastening devices.

1.7 PRODUCT STORAGE & HANDLING

A. Store fabricated steel above ground on platforms, skids, or other approved supports.

B. Store other materials in weather-tight and dry locations.

C. Store packaged materials in original unbroken containers.

D. Protect against damage and discoloration.

1.8 MEASUREMENTS

A. Verify dimensions by prefabricating all steel components to a complete structure prior to field fabrication.

B. If field measurements differ slightly from Drawing dimensions, modify Work as required for accurate fit after notification to the C.O.R. All damaged galvanized areas shall be treated with an acceptable zinc based product approved by C.O.R.

PART 2 - PRODUCTS

2.1 STEEL SHAPES, BARS, AND PLATES

A. Manufacturing standard: AASHTO M270, Grade 36.

B. Galvanizing: After fabrication in accordance with AASHTO M 111.

C. Painting: Section 09900

2.2 STEEL PIPE (Not Used)

2.3 THREADED FASTENERS AND ANCHOR BOLTS

A. Manufacturing Standard:

1. Bolts & Nuts: ASTM A 307 Grade A.

2. Plain Washers: ANSI Standard B 27.2.

B. Size & Spacing: See Drawings.

C. Finish: Hot-dipped galvanized.

1. All fastening steel items. Galvanize in accordance with AASHTO M232.

2.4 FABRICATION

A. Form to accurate sizes and shapes, with sharp lines and angles, and in accordance with AISC minimum fabrication standards.

B. Punch and shear to leave clean surfaces.

C. Weld permanent connections. The welding procedure shall be in accordance with AWS D1.1 and shall be suitable for the grade of steel and intended use or service.

D. Provide holes and connections as shown on the drawings.

E. Cut abutting members to fit with full bearing contact.

F. Form elbows and bends to uniform radii, free from buckles and twists, and with finished surfaces smooth.

G. Miter and cope member intersections within 2 degrees, fit to within 0.02 inches, and weld all around.

H. Where exposed to weather, form to exclude water; allow for expansion and contraction.

2.5 SHOP TREATMENT

A. Surface preparation:

1. Remove grease, oil, dirt, loose rust, loose mill scale, and any other bond-reducing materials.

2. Within 8 hours of surface preparation, galvanize as specified above.

2.6 FIELD TREATMENT

A. FIELD TREATMENT

1. Cold galvanizing paint, contractor’s choice upon approval of COR.

B. CUTTING AND DRILLING

1. Cutting or drilling shall not be performed with a torch.

3.1 EXISTING CONDITIONS

A. Verify that surfaces and structures to receive fabricated steel are accurately sized and located, square, plumb, true, rigid, secure, and otherwise properly prepared.

B. Prior to starting work, notify COR about defects requiring correction.

C. Do not start work until conditions are satisfactory.

3.2 PROTECTING WORK OF OTHER SECTIONS

A. Protect against damage and discoloration caused by work of this Section.

3.3 INSTALLATION

A. Install to true lines, plumb and level, and as detailed or required for rigidity and permanence.

3.4 TOUCH-UP

A. Touch-up damaged galvanized surfaces with zinc-rich paint. Match existing galvanization thickness.

B. Touch-up damaged flat black and/or powder coat finish paint. Match existing painting thickness.

3.5 PRODUCT CLEANING AND REPAIRING

A. Including work of other trades, clean, repair and touch-up, or replace when directed, B. Remove debris from project site upon work completion or sooner.

END OF SECTION 05500

SECTION 06100

ROUGH CARPENTRY

This work shall consist of all of the lumber portion of the project. It shall include furnishing and installing all lumber as shown on the drawings.

Measurement and Payment – The method of measurement and payment are incidental to other pay items.

References 05500 Fabricated Steel 06311 Preservative Treated Lumber 09900 Painting

Submittals: Structural and nonstructural Lumber - Structural timber and lumber shall meet the requirements of AASHTO M168. All lumber shall be graded and finished in accordance with the West Coast Lumber Inspection Bureau (WCLB) "Grading and Dressing Rules," current edition. At the option of the Contractor, the lumber may be graded under the "Grading Rules for Western Lumber" issued by Western Wood Products Association (WWPA), current edition, provided that an equivalent specification to the WCLB paragraph applies. In addition to the requirements referred to in this paragraph, all lumber shall be supplied Free of Heart Center (FOHC), and the moisture content shall not exceed 19% prior to treatment.

The Contractor shall furnish the following compliance certificates to the Contracting

Officer upon delivery of the materials to the job site:

A. Verification of compliance with grading rules and species of timber and lumber.

Certification shall be by an agency accepted as competent by the American Lumber Standards Committee.

Pressure Treatment Refer to Section 06311.

Delivery, Storage and Handling

Protect materials stored outdoors with waterproof covering. Protect materials from warping or distortion by stacking level and maintaining banding until used.

Material Platform Borders: No. 2 and Better, Douglas Fir, Rough Sawn, Incised & Pressure Treated with CCA retention of .4 lb/ft3 or refusal.

Platform: See Drawing for platform. No incising permitted on railing system, fence and facia.

Interpretive Sign Structures:

Facia, Trim, Battens and lumber smaller than 4 x 4: “B” and Better, Western Red Cedar, saw texture. Furnish lumber with a moisture content of 19% or less for material three inches and less in nominal thickness, unless otherwise specified.

Heavy Timbers (4 x 4 and larger): No. 1 or better, Douglas-Fir, 100% free of heart, S4S.

Pressure treated, no incising.

Accessories Fasteners and Anchors Hot-dipped galvanized or zinc electroplated steel, except those pieces to receive powder-coat finish.

Provide rough hardware for the proper installation of work. Use hot-dipped galvanized bolts, nuts, and washers at all locations, unless otherwise SHOWN ON THE DRAWINGS.

Connecting plates and brackets shall be painted as SHOWN ON THE DRAWINGS.

Notify COR 24 hours in advance of discrepancies in drawings or field conditions warranting the fabrication of wooden members to be altered from the drawings in any way. If deemed necessary the COR may approve contractor to proceed with changes, only with written permission.

Protect exposed surfaces during construction. Cut ends square and angles flush to provide full bearing. Install members with fabricated steel brackets AS SHOWN ON THE DRAWINGS.

Set all vertical member plumb. Cut all end butts at bisect of the angle being joined unless otherwise approved by the COR.

Set horizontal members parallel and level AS SHOWN ON THE DRAWINGS.

Select the best face of the wood to be the exposed surfaces. Fabricate so as to not have grading marks, band marks, etc. showing.

All field cuts and drill holes shall be treated with preservative treatment prior to installation of the wooden member or metal hardware.

Chainsaw cuts are prohibited.

END OF SECTION 06100

SECTION 06311

PRESEVATIVE TREATED LUMBER

PART I - DESCRIPTION

1.1 This work shall consist of all of the preservative treated lumber on the project. It shall include furnishing and installing all lumber as shown on the drawings and specifications.

1.2 Measurement and Payment - The method of measurement and payment are incidental to other pay items.

1.3 Reference Specifications - The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

American Association of State Highway and Transportation Officials (AASHTO)

"Standard Specifications for Highway Bridges."

American Wood Preservers Association (AWPA) “Empty Cell Process” West Coast Lumber Inspection Bureau (WCLB) “Grading and Dressing Rules” Western Wood Products Association (WWPA) "Grading Rules for Western Lumber" AASHTO M133 Preservatives and Pressure Treatment Processes for Timber AWPA C1 Standard for All Timber Products, Pressure Treatment AWPA C2 Lumber, Timbers, Bridge Ties and Mine Ties, Pressure Treatment AWPA P8 Oil-Borne Preservatives AWPA P9 Solvents for Organic Preservative Systems

1.4 Related Work - The work shall be in accordance with the following subsidiary specifications. The subsidiary specifications are referred to in the text by the Section designation only.

Section 05500: Fabricated Steel Section 06100: Rough Carpentry

PART II - MATERIALS

2.1 Structural and nonstructural Lumber – Shall meet section 06100.

The Contractor shall furnish the following compliance certificates to the Contracting Officer upon delivery of the materials to the job site:

A. Certification of preservative, penetration in inches, and retention in pounds per cubic foot (assay method) either by a qualified inspection and testing agency or by supplier certification if each piece is stamped or branded with the American Wood Preservers Bureau (AWPB) quality mark.

2.2 Preservative Treatments - Timber preservatives and treatment methods shall meet the requirements of AASHTO M133.

All lumber from the kick rails up (including kick rails) shall be treated with Oxine

Copper. Retention shall be a minimum of .25 lb/ft3. No incising permitted.

All ground contact lumber shall be incised and treated with Chromated Copper Arsenate (CCA), Retention shall be .4 lb/ft3 or refusal.

Methods of determining the amount of penetration and retention shall conform to AWPA

C2/C9. The amount of retention shall be determined by the assay method for lumber above ground. Test results shall be forwarded to the Contracting Officer with the "Certificate of Inspection of Treatment."

Incising shall not be permitted unless specified above or shown in the drawings.

PART III – CONSTRUCTION

3.1 Prior to Treatment: Fabricate all wood components complete with chamfers, grooves, holes, etc., prior to pressure treatment.

3.2 Storage and Handling of Material - All materials shall be so handled, stacked, and protected as to prevent scarring, breaking, warping, or weathering. Corners of heavy construction timbers and banded packages of lighter construction timber shall be protected when handled by slings.

All field cuts, drilling or abrasions made in fabricated timber after treatment shall be carefully trimmed and given three brush coats of the same type of preservative used in the original treatment unless otherwise shown on the drawings. Field cuts shall be limited to holes and minor trimming, and cuts shown on the drawings.

3.3 Workmanship - All lumber and construction timber shall be cut and set so all joints will have even bearing over the entire contact surface. No shimming shall be done in making joints, and all joints shall be closed. Spikes shall be driven to set the heads flush with the wood surface. Holes for bolts shall be bored with a bit of the same diameter as that of the bolt, except when galvanized hardware is specified, then all holes shall be drilled 1/16 inch greater than the bolt size. Holes for screws at angle or butt joints shall have the same diameter and depth as the shank of the screw. Screw heads shall be flush to the surface of the lumber. Before driving bolts all holes bored after treatment shall be treated as specified in Paragraph 3.2 of this Section. Any holes drilled but not used after being treated shall be plugged with treated plugs.

3.4 Bolts and Washers - Washers of the size and type shown on the drawings shall be placed under all bolt heads and nuts. All nuts shall be finally tightened to provide proper bearing and excess bolt lengths of more than 1 inch shall be cut off. After being finally tightened, all nuts shall be checked or burred effectively with a pointing tool to prevent loosening.

Use of multiple washers to make up excess bolt lengths will not be allowed.

END OF SECTION 06311

SECTION 07900

SEALANTS

This section specifies sealants and finishing work for the benches.

Product Delivery, Storage and Handling

Deliver material to the site in the original containers with labels intact and seals unbroken.

Storage of sealants, chemicals, and equipment overnight in a permanent building on site is prohibited. A portable storage unit may be used and positioned where approved by the COR.

Remove cloths and waste material which may constitute a fire hazard from the project daily.

Submittals: Within 30 days after Award of Contract and before materials are delivered to the site, submit the following:

Samples: Color chip.

Manufacturer’s Literature: Submit a complete list of products proposed for use with literature from the manufacturer showing compliance with these specifications, suitability for its intended use and instructions for its application.

Material Safety Data Sheets: Submit for each product used.

Materials and Colors Pressure Treatment: .21 CA-C Brown tone or ACQ Cedar tone (both reddish brown).

Treatment: Log Oil sealant.

1. Use drop cloths of adequate size to protect the area.

2. Mix and prepare painting materials in accordance with manufacturer’s direction.

3. Do not coat over dirt, wood dust, grease, and moisture or other conditions detrimental to formation of a durable sealant film.

4. Apply sealants in accordance with manufacturer’s directions. Use techniques best suited for substrate and type of material being applied.

5. Secure approval of each coat before proceeding with the next step.

6. Apply material evenly without runs, sags or other defects.

7. Apply additional coats when undercoats, stains, or other conditions show through final coat. Final finish shall have uniform color and appearance.

PREPARATION

Prior to all work of this Section, carefully inspect the installed work of other trades and verify that all such work, which may affect work in this Section, is correct and complete to a point where this installation may commence.

Sand and clean all surfaces before finishing or prepare per manufacturer’s instructions.

Apply first coat of log oil treatment after the timbers have been pressure treated.

Remove sap and wood surfaces by scraping and washing with turpentine.

Seal all knots or resinous area with knot sealer and allow to dry at least 2 hours before next step.

FINISHES

Apply second coat of log oil after assembly is complete.

MEASUREMENT AND PAYMENT (NOT USED)

SECTION 09900

PAINTING

This section specifies painting and finishing. The term paint as used herein includes alkyd resins, acrylics, enamels, and paints.

Paint, powder-coat, and finish all work indicated ON THE DRAWINGS and listed in this specification.

Product Delivery, Storage and Handling

Deliver material to the site in the original containers with labels intact and seals unbroken.

Storage of paint, chemicals, and equipment overnight in a permanent building on site is prohibited. A portable storage unit may be used and positioned where approved by the COR.

Remove cloths and waste material which may constitute a fire hazard from the project daily.

Submittals Within 30 days after Award of Contract and before materials are delivered to the site, submit the following:

Samples: Color chips for color selections. Wood pieces for finish selection.

Manufacturer’s Literature: Submit a complete list of products proposed for use with literature from the manufacturer showing compliance with these specifications, suitability for its intended use and instructions for its application.

Material Safety Data Sheets: Submit for each product used.

Materials and Colors Powder Coatings, Tiger Drylac, Series 19, TGIC Polyester, semi-gloss level 55-65.

EXECUTION

Preparation

Prior to all work of this Section, carefully inspect the installed work of other trades and verify that all such work, which may affect work in this Section, is correct and complete to a point where this installation may commence.

Sand and clean all surfaces before finishing or prepare per manufacturer’s instructions.

Finishes Staining. Areas designated for stain, apply two coats. Second coat shall be applied before the first coat has dried. Sticker marks from stacking shall not be exposed. Agitate stain during application to produce a uniform color throughout the project.

Powder Coating. Apply powder coating to metals using the electrostatic method to provide finished coat of 3 mil. minimum thickness. Finish coat to be smooth. Assure oven temperature and time is sufficient for the intended metal thickness.

Apply two coats to steel areas exposed to sight.

Additional Supply

Provide one (1) gallon of each color and type of stain used on the project to the COR. Stain is to be in unopened, original manufacturer's container. Stain is to be given to the COR when all work has been inspected and approved.

MEASUREMENT AND PAYMENT

All work necessary for completing this item is considered incidental to other pay items.

END OF SECTION 09900