B08_Attachment_10_GERO_289951_PerformanceSpecs_FinalPOR.pdf

REHABILITATE LINCOLN MEMORIAL BRIDGE

GEORGE ROGERS CLARK NATIONAL

HISTORICAL PARK

GERO

PMIS NO. 289951

FINAL POR

PERFORMANCE SPECIFICATIONS

DIVISION 2 - 49

NATIONAL PARK SERVICE

DENVER SERVICE CENTER

JANUARY 18, 2024

GERO - 289951 TABLE OF CONTENTS - 1

TABLE OF CONTENTS

DIVISION 02: EXISTING CONDITIONS

02 41 19 SELECTIVE DEMOLITION

DIVISION 03: CONCRETE

03 01 30 MAINTENANCE OF CAST-IN-PLACE CONCRETE

03 30 00 CAST-IN-PLACE CONCRETE

DIVISION 04: MASONRY

04 01 40.52 STONE CLEANING

04 01 40.91 STONE RESTORATION

04 20 00 UNIT MASONRY

DIVISION 31: EARTHWORK

31 10 00 SITE CLEARING

DIVISION 32: EXTERIOR IMPROVEMENTS

32 13 16 DECORATIVE CONCRETE PAVING

32 14 00 UNIT PAVING

32 16 23 SIDEWALK

32 84 00 IRRIGATION SYSTEMS

32 91 15 SOIL PREPARATION

32 92 00 TURF AND GRASSES

32 93 00 PLANTS

GERO - 289951 02 41 19 - 1

SELECTIVE DEMOLITION

SECTION 02 41 19 - SELECTIVE DEMOLITION

1.1 FIELD CONDITIONS

A. Historic removal or dismantling required.

1.2 DISPOSAL OF DEMOLISHED MATERIALS

A. Dispose of demolished materials according to Section 017419 "Construction Waste Management and Disposal."

1.3 SELECTIVE DEMOLITION SCHEDULE

A. Selective demolition includes:

1. Dismantling, removal, and disposal of brick walls and brick and masonry wall materials remaining from the previous stone removal project.

2. Removal and disposal of masonry setting bed and masonry materials remaining from the previous stone removal project.

3. Removal and disposal of concrete and exposed aggregate concrete paving.

4. Removal and disposal of asphalt paving.

END OF SECTION 02 41 19

GERO - 289951 03 01 30 - 1

MAINTENANCE OF CAST-IN-PLACE CONCRETE

SECTION 03 01 30 - MAINTENANCE OF CAST-IN-PLACE CONCRETE

1.1 SUMMARY

A. Removal of deteriorated concrete and subsequent replacement and patching.

B. Concrete repair with patching mortar(s) formulated to match existing, adjacent, exposed concrete.

C. Concrete repair with cast-in-place concrete formulated to match existing, adjacent, exposed concrete.

D. Epoxy crack injection of in-place concrete.

E. Corrosion-inhibiting treatment applied to in-place concrete reinforcement.

F. New structural reinforcement to supplement existing if significant section loss exists.

1.2 UNIT PRICES

A. Unit prices for concrete removal and patching and epoxy crack injection.

1.3 QUALITY ASSURANCE

A. Mockups for each type of concrete maintenance.

1.4 FIELD QUALITY CONTROL

A. Testing Agency: Contractor engaged.

B. Manufacturers' service representatives engaged for consultation, site inspection, and on-site assistance when requested.

END OF SECTION 03 01 30

GERO - 289951 03 30 00 - 1

CAST-IN-PLACE CONCRETE

SECTION 03 30 00 – CAST-IN-PLACE CONCRETE

1.1 SUMMARY

A. All labor, materials, equipment and services necessary to complete the concrete work.

1.2 QUALITY ASSURANCE

A. Comply with provisions of following codes, specifications, and standards, except where more stringent requirements are shown or specified: International Building Code, Latest Edition; ACI 301 "Specifications for Structural Concrete”; ACI 318 "Building Code Requirements for Structural Concrete”.

B. Concrete mixes shall conform to applicable code stated above.

C. Compression test samples shall be taken from the mixer in accordance with ASTM C 172, cured in accordance with ASTM C 31. A minimum of 4 test cylinders shall be taken for each 50 cu.yds.

or less of each class of concrete placed in any one day. One cylinder shall be tested at 7 days, 3 at 28 days.

D. Each cylinder shall be suitably identified by a mark and the area where the concrete is placed shall be recorded. A certified laboratory in accordance with the applicable code shall make all tests. Test reports shall be filed within (10) days of receipt from the certified testing laboratory.

E. Concrete shall (except as stated above and as modified by the applicable code) conform to ACI 318, latest edition for quality, mixing and placing.

F. Manufacturer's Data: Submit manufacturer's product data with installation instructions for proprietary materials including reinforcement and forming accessories, admixtures, joint materials, hardeners, curing materials and others as requested by the architect.

G. Laboratory Reports: Submit two copies of laboratory test or evaluation reports for concrete materials and mix designs.

H. Mix Proportions and Design: Proportion mixes complying with mix design procedures specified in ACI 301.

1.3 PRODUCTS

A. Portland Cement: ASTM C 150, Type I, II, or I/II.

B. Aggregates: ASTM C 33 for normal weight aggregate; ASTM C 330 for lightweight aggregate.

C. Water: Potable.

D. Air-Entraining Admixture: ASTM C 260.

E. Water-Reducing Admixture: ASTM C 494; type as required to suit project conditions. Only use admixtures which have been tested and accepted in mix designs, unless otherwise approved by

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the Engineer.

F. Curing Compound: ASTM C 309, Type I.

G. Form Materials:

1. Exposed Concrete Surfaces: Suitable material to suit project conditions.

H. Reinforcing Materials:

1. Deformed Reinforcing Bars: ASTM A 615, Grade 60

2. Welded Wire Reinforcement: ASTM A 1064.

1.4 FORMING AND PLACING CONCRETE

A. Job-Site Mixing: Use drum type batch machine mixer, mixing not less than 1-1/2 minutes for one cu.yd. or smaller capacity. Increase mixing time at least 15 seconds for each additional cu.yd.

or fraction thereof.

B. Ready-Mix Concrete: ASTM C 94.

C. Formwork: Construct so that concrete members and structures are of correct size, shape, alignment, elevation and position. Provide openings in formwork to accommodate work of other trades. Accurately place and securely support items built into forms. Clean and adjust forms prior to concrete placement. Apply form release agents or wet forms, as required. Retighten forms during concrete placement, if required, to eliminate mortar leaks.

D. Reinforcement: Position, support and secure reinforcement against displacement. Locate and support with metal chairs, runners, bolsters, spacers and hangers, as required. Set wire ties so ends are directed into concrete, not toward exposed concrete surfaces.

E. Install welded wire reinforcement in as long lengths as practicable, lapping at least one mesh.

F. Joints: Provide construction, isolation, and contraction joints as indicated or required. Locate construction joints so as to not impair strength and appearance of structure. Place isolation and contraction joints in slabs on ground to stabilize differential settlement and random cracking.

G. Installation of Embedded Items: Set and build into work anchorage devices and other embedded items required for other work that is attached to or supported by cast-in-place concrete. Use setting diagrams, templates and instructions provided by others for locating and setting.

H. Concrete Placement: Comply with ACI, placing concrete in a continuous operation within planned joints or sections. Do not begin placement until work of other trades affecting concrete is completed.

I. Consolidate placed concrete using mechanical vibrating equipment with hand rodding and tamping, so that concrete is worked around reinforcement and other embedded items and into forms.

J. Protect concrete from physical damage or reduced strength due to weather extremes during

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mixing, placement and curing.

1.5 CONCRETE FINISHES

A. Exposed to View Surfaces: Provide a smooth finish for exposed concrete surfaces. Remove fins and projections, patch defective areas with cement grout, and rub smooth. Match existing in kind for concrete surfaces with color and/or exposed aggregate.

B. Slab Trowel Finish: Apply trowel finish to monolithic slab surfaces that are exposed to view or are to be covered with resilient flooring, paint or other thin film coating. Consolidate concrete surfaces by finish troweling, free of trowel marks, uniform in texture and appearance.

C. Curing: Begin initial curing as soon as free water has disappeared from exposed surfaces. Where possible, keep continuously moist for not less than 7 days. Continue curing by use of moisture-retaining cover or membrane-forming curing compound. Cure formed surfaces by moist curing until forms are removed. Provide protections as required to prevent damage to exposed concrete surfaces.

1.6 CONCRETE TESTING SERVICE

A. Contractor shall employ testing laboratory, approved by owner, to perform materials evaluation, testing and design of concrete mixes.

1.7 INSPECTION

A. All concrete work shall be subject to inspection by or under the direct supervision of an inspector paid by the contractor

END OF SECTION 03 30 00

GERO - 289951 04 01 40.52 - 1

STONE CLEANING

SECTION 04 01 40.52 – STONE CLEANING

1.1 SUMMARY

A. Work of this Section consists of providing all labor, materials, equipment, and services to clean the granite masonry as noted on the Contract Drawings or as directed by the Contracting Officer. Work includes, but is not limited to:

1. Removal of atmospheric soiling, biological growth, carbonate crusts, efflorescence, iron stains, black stains, and other surface contaminants using chemical cleaning agents.

1.2 QUALITY ASSURANCE

A. All work of this Section shall be done by a qualified restoration Contractor with a minimum of five (5) years of experience working with historic masonry. The Contractor must demonstrate three (3) projects similar in scope and type to the required work involving facilities designated as Landmarks by local governments, or buildings listed on the National or State Register of Historic Places.

B. Submit product data and SDS for all products to be used for approval.

C. Prior to executing work, provide in-place mockups for the Contracting Officer’s approval.

Resubmit panels until the Contracting Officer is fully satisfied. Mockups shall be prepared using the same workmen, methods, and materials that will be employed for the remainder of the work.

Approved mockups shall be retained, undisturbed and suitably marked, as the standard of work throughout construction. Mockups may be incorporated into the finished work when approved by the Contracting Officer.

D. Design-build Contractor shall be responsible for developing alternatives and mockups, providing assurances of performance, and working through the review process by the State Historic Preservation Office documenting compliance with Secretary of the Interior’s Standards and Guidelines.

1.3 MATERIALS

A. General Soiling Remover

1. CSP Heavy Duty Cleaner as manufactured by Cathedral Stone Products, Inc., 7266 Park Circle Drive, Hanover, Maryland, 21076, (410) 782-9150

2. Or approved equal.

B. Iron Stain Remover

1. Sure Klean Iron Stain Remover mixed with Sure Klean Marble Poultice Powder, by ProSoCo, Inc. 3741 Greenway Circle, Lawrence, KS 66046, (800) 255-4255

2. Or approved equal.

C. Carbonate Crust Remover

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1. Mechanical removal using a hammer and chisel followed by SB 2377 HD Concrete, Mineral & Efflorescence Remover, manufacture by Shore Corporation, 2917 Spruce Way, Pittsburgh, PA 15201, (412) 471-3330

2. Or approved equal.

1.4 INSTALLATION

A. Install protection of adjacent surfaces, property, and people.

B. General Soiling Removal

1. Prewet the surface to be cleaned.

2. Apply a thick, even layer of the cleaner using acid-resistant brushes or rollers. Gently scrub the surface to improve results.

3. Allow the cleaner to dwell for the time established during testing and mockups. For the

CSP Heavy Duty Cleaner, the dwell time should be 5 minutes. Do not let the cleaner dry on the surface. If drying occurs, lightly wet the surface with fresh water and reapply the cleaner.

4. Scrub the treated surfaces to loosen soiling.

5. Rinse thoroughly with clean water. Pressure shall not exceed 1000psi. Rinse until the pH of the cleaned surface reads neutral (pH of 7) or equal to that of the rinse water.

C. Iron Stain Removal

1. Mix the chemical cleaner with the poultice powder until a paste is formed.

2. Apply the paste to a dry surface with a natural bristle brush or a plastic scraper.

3. Cover the poultice with plastic and allow it to dwell overnight.

4. Remove the plastic and allow the poultice to completely dry.

5. Scrape the dried poultice off the surface with a plastic or wooden scraper.

6. Scrub the area with a nylon bristle brush.

7. Rinse thoroughly with clean water. Pressure shall not exceed 1000psi. Rinse until the pH of the cleaned surface reads neutral (pH of 7) or equal to that of the rinse water.

8. Repeat the process once, if iron stains remain. Notify Contracting Officer or owner if additional stain remains after two applications.

D. Carbonate Crust Removal

1. Carefully remove or thin heavy encrustations of carbonate deposits using a hammer and a sharp chisel. Be sure not to mar or scratch the granite surface. The intent is to cleave the deposit from the granite. Thinner deposits can be left as.

2. Apply the undiluted cleaner to the deposit. Allow the cleaner to dwell for at least 10 minutes. Periodically scrub and apply additional cleaner during the dwell period to facilitate removal. No metal brushes or scrapers are to be used. If necessary, the cleaner can dwell longer, based upon the results of mockups.

3. Rinse thoroughly with clean water. Pressure shall not exceed 1000psi. Rinse until the pH of the cleaned surface reads neutral (pH of 7) or equal to that of the rinse water.

4. Repeat the process once, if deposits remain. Notify Contracting Officer or owner if additional deposit remains after two applications.

5. Aim to remove 85% of carbonate deposits.

GERO - 289951 04 01 40.52 - 3

END OF SECTION 04 01 40.52

GERO - 289951 04 01 40.91 - 1

STONE RESTORATION

SECTION 04 01 40.91 – STONE RESTORATION

1.1 SUMMARY

A. Work of this Section consists of providing all labor, materials, equipment, and services to repair the granite masonry as noted on the Contract Drawings or as directed by the Contracting Officer. Work includes, but is not limited to:

1. Tooling loose and flaking stone

2. Crack repair

3. Rejoining broken units

4. Pointing

5. Installation of lead T-caps in sky-facing joints

1.2 QUALITY ASSURANCE

A. All work of this Section shall be done by a qualified restoration Contractor with a minimum of five (5) years of experience working with historic masonry. The Contractor must demonstrate three (3) projects similar in scope and type to the required work involving facilities designated as Landmarks by local governments, or buildings listed on the National or State Register of Historic Places.

B. Submit product data, SDS, and samples of all products to be used for approval.

C. Prior to executing work, provide in-place mockups for the Contracting Officer’s approval.

Resubmit panels until the Contracting Officer is fully satisfied. Mockups shall be prepared using the same workmen, methods, and materials that will be employed for the remainder of the work.

Approved mockups shall be retained, undisturbed and suitably marked, as the standard of work throughout construction. Mockups may be incorporated into the finished work when approved by the Contracting Officer.

D. Design-build Contractor shall be responsible for developing alternatives and mockups, providing assurances of performance, and working through the review process by the State Historic Preservation Office documenting compliance with Secretary of the Interior’s Standards and Guidelines.

1.3 MATERIALS

A. Pointing mortar

1. Provide joint filling material that is physically and aesthetically compatible with the surrounding granite. New joint material must have a greater water permeability and be softer than the granite.

B. Composite patching

1. Provide cementitious composite patching material that is custom color-matched to the cleaned surface of the masonry.

GERO - 289951 04 01 40.91 - 2

a. Submit representative samples of each variation in each type and color of existing masonry units requiring patching to the patching material manufacturer for color matching.

C. Crack injection grout

1. Provide cementitious grout designed to be injected into thin cracks.

D. Pins

1. Provide stainless steel, AISI Type 302 or 304, threaded rods of a size required for re-joining fractured pieces.

E. Adhesive

1. Provide UV-stable, non-yellowing epoxy adhesive intended for use on natural stone.

F. Lead T-Caps

1. Lead T-Caps (also known as Lead Weatherstripping): T-caps are a weatherproofing product, manufactured from lead, which are designed to be used with a building sealant for the weatherproofing and protection of masonry joints.

2. T-caps shall consist of a molded cap or fillet surface with a splined tang for anchoring in the sealant-filled mortar joint and shall be provided in continuous strips for field cutting and fitting.

3. T-caps shall be of sufficient width to cover the joint opening to be sealed plus allowance for the percentage of anticipated or known joint movement experienced plus 1/4 inch.

1.4 INSTALLATION

A. Install protection of adjacent surfaces, property, and people.

B. Tool surface scaling from granite.

1. Sound masonry units in-place using the “ring test method” in order to distinguish fully intact stone from those in which delamination may be hidden or pieces of unstable material which may not be immediately visible.

2. Using a hammer and chisel or pneumatic air chisel, scale off all loose pieces of stone, including surface material in powder or granular form, and detachments of planer elements, spalls, and chips. Tool the affected area to match adjacent work and so that water can effectively shed from the masonry surface.

3. Once all loose material is removed, the surface of the granite panel can be flame finished to feather the edges of scaled areas and to match the original surface texture of the panels.

C. Fill cracks that do not travel through the thickness of the panel.

1. Cracks larger than hairline, but narrower than 3/16 inch shall be filled with injectable grout, introduced through ports which should measure 1/4 inch in diameter and be spaced as required. Entry ports and crack surface should be subsequently patched with composite

GERO - 289951 04 01 40.91 - 3

patching mortar to match the color, level, texture, and profile of surrounding clean masonry.

2. Cracks equal to or wider than 1/4 inch shall be routed and filled with composite patching material to match the color, level, texture, and profile of the surrounding clean masonry.

D. Repair units with cracks running completely through unit by re-joining and pinning pieces using adhesive and stainless steel pins.

E. Point newly installed stone units with masonry joint of appropriate hardness, permeability, and bonding characteristics as approved by the Contracting Officer based on submittals and mock-ups.

1. Joint widths and profile to match original.

F. Install lead weather caps in sky-facing joints.

END OF SECTION 04 01 40.91

GERO - 289951 04 20 00 - 1

UNIT MASONRY

SECTION 04 20 00 - UNIT MASONRY

1.1 QUALITY ASSURANCE

A. Mockups of typical wall areas.

1.2 PERFORMANCE REQUIREMENTS

A. Net-Area Compressive Strengths of Structural Unit Masonry: As indicated.

B. Determine net-area compressive strength of masonry by unit-strength method.

1.3 MATERIALS

A. Concrete Masonry Units (CMUs): Normal Weight

B. Brick: Clay face brick

C. Reinforcement: Uncoated-steel reinforcing bars.

D. Masonry-Joint Reinforcement:

1. Exterior Walls: Stainless steel

E. Ties and Anchors: Stainless steel

1. Corrugated-metal ties.

2. Individual wire ties.

3. Adjustable anchors for connecting to concrete.

4. Partition top anchors.

5. Rigid anchors.

6. Adjustable Masonry-Veneer Anchors:

F. Embedded Flashing:

1. All Flashing: Copper

G. Reinforcing bar positioners.

H. Mortar:

1. Portland cement-lime mortar unless otherwise indicated.

2. Pigmented or Colored-aggregate mortar for exposed mortar joints to match original.

1.4 INSTALLATION

A. Match existing masonry coursing, bonding, color, and texture.

B. Cavity face of backup wythe parged.

GERO - 289951 04 20 00 - 2

UNIT MASONRY

C. Clean masonry waste recycled as fill material.

1.5 FIELD QUALITY CONTROL

A. Testing Agency: Contractor engaged.

B. Inspections: Special inspections according to Level B in TMS 402/ACI 530/ASCE 5.

C. Testing: One set of tests for each 5000 sq. ft. of wall area

END OF SECTION 04 20 00

GERO - 289951 31 10 00 - 1

SITE CLEARING

SECTION 31 10 00 - SITE CLEARING

1.1 SUMMARY

A. Protecting existing vegetation to remain.

1. Refer to the Drawings for existing trees to remain in areas within and/or adjacent to the work area.

B. Removing existing vegetation.

1. Remove existing vegetation including shrubs and weeds from the existing planting beds adjacent to the bridge approach.

2. Remove existing top growth from the stone storage area to provide a clean, uniform site for fine grading and reseeding operations.

C. Clearing and grubbing obstructions, trees, shrubs, and other vegetation, including grinding stumps and removing roots and debris.

1. Remove roots and debris from the existing planting beds adjacent to the bridge approach.

END OF SECTION 31 10 00

GERO - 289951 32 13 16 - 1

DECORATIVE CONCRETE PAVING

SECTION 32 13 16 - DECORATIVE CONCRETE PAVING

1.1 SUMMARY

A. Concrete paving with exposed aggregate finish.

1.2 QUALITY ASSURANCE

A. Installer Qualifications: Approved by manufacturer of decorative concrete paving systems.

B. Mockups to demonstrate surface finish, texture, and color; curing; and standard of workmanship.

To show proposed surface texture, color and general appearance of acceptable work, the Contractor shall construct a sample 3-foot square panel for approval. No exposed aggregate work shall be performed until the sample has been approved and becomes the standard of comparison for all exposed aggregate paving. Do not alter, move or destroy sample until the work is completed.

1.3 MATERIALS

A. Concrete, General: ACI 301 (ACI 301M).

B. Reinforcement:

1. Steel welded wire.

C. Concrete:

1. Portland Cement: ASTM C 150, Type 1, gray.

2. Exposed Aggregate: All aggregate will be washed and free of material that reacts with cementitious materials and causes staining. Aggregate will be of hard and durable material as in marble, granite, quartz. Aggregate will be between ½” and ¾” in diameter and will be free of all soft aggregates including but not limited to shale, coal, sandstone and ironite.

All pours will be of the same color texture and durability as the existing walks in the park.

a. One previously accepted mix is located at Jones and Sons located on north Sixth

Street in Vincennes IN. The mix is known as the Bloomfield Mix.

3. Surface Retardant: Liquid compound Supertard S by Clemons Concrete Products or approved equal.

4. Expansion Joint Fillers: Pre-molded type, ASTM D1751. Size, 1/2 inch by depth of slab.

5. Sealant: In accordance with Section 07900, Sealants, NP-1 Sonneborn Limestone or approved equal.

Curing Materials: Sheet Materials: ASTM C171, 4-mil polyethylene film or waterproof paper.

6. Compressive Strength: 3500 psi (24.1 MPa) at 28 days.

1.4 FIELD QUALITY CONTROL

A. Testing: By Contractor-engaged agency.

GERO - 289951 32 13 16 - 2

DECORATIVE CONCRETE PAVING

END OF SECTION 32 13 16

GERO - 289951 32 14 00 - 1

UNIT PAVING

SECTION 32 14 00 - UNIT PAVING

1.1 SUMMARY

A. Work of this Section consists of providing all labor, materials, equipment, and services to repair the granite paving as noted on the Contract Drawings or as directed by the Contracting Officer.

1.2 QUALITY ASSURANCE

A. All work of this Section shall be done by a qualified restoration Contractor with a minimum of five (5) years of experience working with historic masonry. The Contractor must demonstrate three (3) projects similar in scope and type to the required work involving facilities designated as Landmarks by local governments, or buildings listed on the National or State Register of Historic Places.

B. Submit product data, SDS, and samples of all products to be used for approval.

C. Prior to executing work, provide in-place mockups for the Contracting Officer’s approval.

Resubmit panels until the Contracting Officer is fully satisfied. Mockups shall be prepared using the same workmen, methods, and materials that will be employed for the remainder of the work.

Approved mockups shall be retained, undisturbed and suitably marked, as the standard of work throughout construction. Mockups may be incorporated into the finished work when approved by the Contracting Officer.

D. Design-build Contractor shall be responsible for developing alternatives and mockups, providing assurances of performance, and working through the review process by the State Historic Preservation Office documenting compliance with Secretary of the Interior’s Standards and Guidelines.

1.3 MATERIALS

A. Stone Pavers: Stockpiled granite paving slabs from original bridge approach installation. Refer to other Sections for stone cleaning and repair prior to reinstallation.

B. Mortar and Grout:

1. Provide paver setting bed and joint filling material that is physically and aesthetically compatible with the surrounding granite. New joint material must have a greater water permeability and be softer than the granite.

2. Basis of Design: ASTM C270 Type S mortar, by proportion (2 parts cement, 1 part lime, 7-9 parts sand) or approved equal as directed by the Contracting Officer based on approved submittals and mock-ups.

1.4 INSTALLATION

A. Joint Pattern: Granite paving stones to be reset in original locations and configurations per stone removal drawings and other reference documentation.

B. Mortar Setting Bed:

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UNIT PAVING

1. In accordance with Part 1.3.B of this Section.

C. Pavers placed with 3/8-inch (10-mm) nominal joints and/or as required to match original paving installation, filled with masonry joint filling material in accordance with Part 1.3.B of this Section.

END OF SECTION 32 14 00

GERO - 289951 32 16 23 - 1

SIDEWALK

SECTION 32 16 23 - SIDEWALK

1.1 QUALITY ASSURANCE

A. Perform work according to Indiana Department of Transportation standards

B. Obtain cementitious materials from the same source throughout.

1.2 MATERIALS

A. Forms: Wood, straight and free from warping, twisting loose knots, splits, or other defects.

B. Joint Filler: Joint fillers shall be preformed materials intended to be used in PCCP or as otherwise specified. Joint fillers shall be in accordance with AASHTO M 213 or ASTM D8139. A type B certification shall be provided for joint fillers.

C. Concrete: This work shall consist of furnishing and placing portland cement concrete for structures and incidental construction. On all bridge structures, class C concrete is to be used for sidewalks, per Indiana DOT specifications. Class C concrete has:

658 lb/cu yd cement content.

0.443 maximum water/cement ratio in lb of water per lb of cement

0.380 minimum water/cement ratio in lb of water per lb of cement

D. Reinforcing Bars: Bars for concrete reinforcement shall be deformed billet steel, grade 60, in accordance with STM A615. Tie bar assemblies used in lieu of bent tie bars shall be in accordance with the minimum total ultimate strength and minimum total yield strength requirements specified for bent tie bars;

END OF SECTION 32 16 23

GERO - 289951 32 84 00 - 1

IRRIGATION SYSTEMS

SECTION 32 84 00 – IRRIGATION SYSTEMS

PART 1 - GENERAL

1.01 WORK INCLUDED - Work of this Section generally includes provisions for the design and installation of an underground irrigation system including the following:

A. Scope of irrigation system work:

a. Rehabilitation of the existing irrigation at the Lincoln Memorial Bridge approach, following the completion of bridge construction, to provide complete coverage to landscape areas affected by bridge construction. The planting beds at the Lincoln Memorial Bridge approach are irrigation zones within a larger existing irrigation system serving George Rogers Clark National Historical Park. The overall park irrigation system is not part of the irrigation rehabilitation work; only the portions of the irrigation system affected by bridge construction are included.

b. Provide temporary irrigation, using on-site water, for establishment of turfgrass seed at the stone storage area following the completion of bridge construction. This area is not served by an existing irrigation system. The temporary irrigation shall be provided by above- ground, impermanent means for a period of 30 days following turfgrass seeding.

c. Refer to the POR Site Plans for locations of bridge approach landscape areas and stone storage area.

B. Static pressure verification and coordination with landscape material installation.

C. Trenching, stockpiling excavation materials, refilling and compacting trenches.

D. Complete irrigation system including but not limited to irrigation system design, piping, backflow preventer assemblies, valves, fittings, heads, controllers and wiring, and final adjustments to insure complete coverage.

E. Water connections.

F. Replacement of unsatisfactory materials.

G. Tests, Clean-up, inspections, and approval.

1.02 RELATED SECTIONS

A. Examine all sections related to project work.

1.03 REFERENCES

A. Perform Work in accordance with requirements of Conditions of the Contract and Division 01 - General requirements as well as provisions of all applicable laws, codes, ordinances, rules, and regulations.

B. Conform to requirements of reference information listed below except where more stringent requirements are shown or specified in Contract Documents.

1. American Society for Testing and Materials (ASTM) - Specifications and Test

Methods specifically referenced in this Section.

2. Underwriters Laboratories (UL) - UL Wires and Cables.

3. National Sanitation Foundation (NSF) – Piping and Backflow prevention.

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4. American Water Works Association - Piping and Backflow prevention.

1.04 QUALITY ASSURANCE

A. Installer Qualifications - Installer shall have had considerable experience and demonstrate ability in the installation of irrigation system(s) of specific type(s) in a neat orderly, and responsible manner in accordance with recognized standards of workmanship. To demonstrate ability and experience necessary for this Project, and financial stability, submit if requested by Owners Representative, prior to contract award the following:

1. List of 5 projects completed in the last 2 years of similar complexity to this Project. Description of projects shall include:

a. Name of project.

b. Location.

c. Owner.

d. Brief description of work and project budget.

2. Current company financial statement.

B. Special Requirements:

1. Work involving substantial plumbing for installation of copper piping, backflow preventer(s), and related Work shall be executed by licensed and bonded plumber(s). Secure a permit at least 48 hours prior to start of installation.

2. Tolerances - Specified depths of mains and laterals and pitch of pipes are minimums. Settlement of trenches is cause for removal of finish grade treatment, refilling, compaction, and repair of finish grade treatment.

3. Coordination with Other Contractors - Protect, maintain, and coordinate Work with Work under other Section.

4. Damage To Other Improvements - Contractor shall replace or repair damage to grading, soil preparation, seeding, sodding, or planting done under other Sections during Work associated with installation of irrigation system at no additional cost to Owner.

C. Pre-Construction Conference - Contractor shall schedule and conduct a conference to review in detail quality control and construction requirements for equipment, materials, and systems used to perform the Work. Conference shall be scheduled not less than 10 days prior to commencement of Work. All parties required to be in attendance shall be notified no later than 7 days prior to date of conference.

Contractor shall notify qualified representatives of each party concerned with that portion of Work to attend conference, including but not limited to Architect, Owners Representative, Contractor's Superintendent, and Installer.

1. Minutes of conference shall be recorded and distributed by Contractor to all parties in attendance within five days of conference.

1.05 SUBMITTALS - Prepare and make submittals in accordance with conditions of the Contract.

A. Complete Irrigation System Design - Contractor shall prepare a complete irrigation system design providing 100% coverage to all landscaped areas. Design shall

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follow these specifications and details and shall be based on the following. Design shall be drafted on sepia mylar paper or utilizing Autocadd by a qualified draftsperson. Final design shall be submitted to Owners Representative for review and approval prior to ordering any material or commencement of any construction.

1. The irrigation design shall at a minimum include the following information;

a. Location of all mainline piping, lateral piping, drip tubing, heads, control valves, gate valves, quick coupling valves, all drip equipment, controllers, tap, meter and backflow preventer

b. All mainline and lateral piping shall be sized on the plans.

c. Each control valve shall have a valve symbol that indicates the valve station number, valve size and designed flow for that valve.

d. A complete irrigation schedule indicating equipment symbol, manufacturer, model number and description.

e. Tap location shall have a note indicating tap size and available pressure.

2. Watering Period – Irrigation system shall be designed to irrigate the site within a six night per week, six hour per night peak season watering period minimum (OR PER LOCAL WATER DISTRICT REQUIRMENTS).

a. A new tap off water line to the building, down stream of the building water meter and prior to the buildings backflow and any pressure reducing valves. Water tap size will be based on plant type requirements of the project. Water usage calculations will be required to submit on irrigation plans, for verification that tap is sized correctly.

b. A new irrigation controller for the irrigation system shall be installed, size the controller with a minimum of 3 extra stations.

3. Static pressure verification - Prior to beginning design work, Contractor shall field verify the pressure available at the site. This pressure shall be clearly indicated on the irrigation design drawing. If pressure is greater than 80 PSI, a pressure regulating valve shall be included at the tap location. If the available water pressure is not sufficient to operate the irrigation system, Contractor shall include within bid the cost to design and install a booster pump. If no pressure is stated on plans, it is the Contractor’s responsibility to verify the pressure available at the site prior to submitting a bid.

4. Mainline system – APPEARS TO BE OUTSIDE OF DISTRUBANCE

AREA

AND MAY NOT BE EFFECTIVE. Mainline shall be designed such that velocities within the piping do not exceed five feet per second. No pressurized mainline shall be installed within ten feet of building foundations without written permission from the project Owner.

5. Shrub bed areas: EXISTING SYSTEM TO BE REPLACED WITH SAME

MATERIALS AND SAME INSTALLATION (ABOVE GROUND

HEADS ON RISERS).

a. Small areas (8 to 20 feet wide) shall be irrigated with fixed nozzle pop- up spray heads with matched precipitation rate nozzles.

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Nozzles shall be sized to match head spacing on 6” pop-up bodies.

b. Large areas (wider than 20 feet) shall be irrigated with gear driven rotors with a minimum precipitation rate of .45" per hour for a full circle rotor.

6. Materials List - Submit three copies if submitting in hard-copy format or one full electronic set of a complete materials list indicating manufacturer, model number, and description of all materials and equipment to be used. Show appropriate dimensions and adequate detail to accurately portray intent of construction via cut sheets and/or shop drawings, as appropriate based on plans, details, and specification information contained within.

C. Record Drawings (As-Builts):

1. At onset of irrigation installation provide mylar sepias of original irrigation design to Owner. At the end of every day, revise prints for Work accomplished that day in red ink. As-built sepias shall be brought up-to-date at the close of the working day every Friday by a qualified draftsperson. A print of record plan(s) shall be available at Project Site.

Indicate zoning changes on weekly as-built drawings. Indicate non-pressure piping changes on as-builts. Upon completion of Project, submit for review, prior to final acceptance, final set of as-built mylar sepias.

Dimensions, from two permanent points of reference (building corners, sidewalk, road inter-sections or permanent structures), location of following items:

a. Connection to existing water lines.

b. Routing of sprinkler pressure lines

c. Control valves.

d. Quick coupling valves.

e. Drain valves.

f. Drip line blow-out stubs.

g. Control wire routing if not with pressure mainline.

h. Gate valves.

i. Control wire and communication cable splices

j. Water meters

k. Locations of all sleeving including size, quantity and depth of sleeve

l. Flow sensors

m. Pressure regulating valves

2. Owner’s Representative will not certify any pay request submitted by the Contractor if the as-built drawings are not current, and processing of pay request will not occur until as-builts are up-dated.

D. Operation Instructions - Submit 3 written operating instructions including winterization procedures and start-up, with cut sheets of products, and coordinate controller/watering operation instruction with Owner maintenance personnel.

E. Shop Drawings - Submit Shop Drawings if noted on construction drawings, include a complete materials list indicating manufacturer, model number, and description of

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all materials and equipment to be used. Show appropriate dimensions and adequate detail to accurately portray intent of construction.

1.06 DELIVERY, STORAGE, AND HANDLING - Deliver, unload, store, and handle materials, packaging, bundling, products in dry, weatherproof, condition in manner to prevent damage, breakage, deterioration, intrusion, ignition, and vandalism. Deliver in original unopened packaging containers prominently displaying manufacturer's name, volume, quantity, contents, instructions, and conformance to local, state, and federal law.

Remove and replace cracked, broken, or contaminated items or elements prematurely exposed to moisture, inclement weather, snow, ice, temperature extremes, fire, or jobsite damage.

A. Handling of PVC Pipe - Exercise care in handling, loading and storing, of PVC pipe. All PVC pipe shall be transported in a vehicle which allows length of pipe to lie flat so as not to subject it to undue bending or concentrated external loads. All sections of pipe that have been dented or damaged shall be discarded, and if installed, shall be replaced with new piping.

1.07 JOBSITE CONDITIONS:

A. Protection of Property:

1. Preserve and protect all trees, plants, monuments, structures, and paved areas from damage due to Work of this Section. In the event damage does occur, all damage to inanimate items shall be completely repaired or replaced to satisfaction of Owner, and all injury to living plants shall be repaired by Owner. All costs of such repairs shall be charged to and paid by Contractor.

2. Protect buildings, walks, walls, and other property from damage. Flare and barricade open ditches. Damage caused to asphalt, concrete, or other building material surfaces shall be repaired or replaced at no cost to Owner. Restore disturbed areas to original condition.

B. Existing Trees:

1. All trenching or other Work under limb spread of any and all evergreens or low branching deciduous material shall be done by hand or by other methods so as to prevent damage to limbs or branches.

2. Where it is necessary to excavate adjacent to existing trees use all possible care to avoid injury to trees and tree roots. Excavation, in areas where 2 inch and larger roots occur, shall be done by hand. Roots 2 inches or larger in diameter, except directly in the path of pipe of conduit, shall be tunneled under and shall be heavily wrapped with burlap to prevent scarring or excessive drying. Where a trenching machine is operated close to trees having roots smaller than 2 inches in diameter, wall of trench adjacent to tree shall be hand trimmed, making clean cuts through roots. Trenches adjacent to trees shall be closed within 24 hours, and when this is not possible, side of trench adjacent to tree shall be kept shaded with moistened burlap or canvas.

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C. Protection and Repair of Underground Lines:

1. Request proper utility company to stake exact location (including depth) of all underground electric, gas, or telephone lines. Take whatever precautions are necessary to protect this under-ground line from damage. If damage does occur, Utility Owner shall repair all damage. Contractor shall pay all costs of such repairs unless other arrangements have been made.

2. Request Owner, in writing, to locate all private utilities (i.e., electrical service to outside lighting) before proceeding with excavation. If, after such request and necessary staking, private utilities, which were not staked, are encountered and damaged by Installer, Owner shall repair them at no cost to Installer. If Contractor damages staked or located utilities, they shall be repaired by Utility Owner at Contractor's expense unless other arrangements have been made.

1.08 WARRANTY/GUARANTY: - Manufacturer shall warrant materials against defects for a period of one year from date of Substantial Completion. Installer(s) shall guaranty workmanship for similar period.

A. Settling of backfilled trenches that may occur during guaranty period shall be repaired at no expense to Owner, including complete restoration of damaged property.

B. Expenses due to vandalism before substantial completion shall be borne by Contractor.

C. Owner will maintain turf and planting areas during warranty period, so as not to hamper proper operation of irrigation system.

1.09 MAINTENANCE:

A. Furnish the following maintenance items to Owner prior to final Acceptance:

1. 2 Sets of special tools required for removing, disassembling, and adjusting each type of sprinkler head and valve supplied on this Project.

B. Winterization - include cost in bid for winterizing complete system at conclusion of sprinkling season (in which system received final acceptance) within 3 days notification by the Owner. System shall be voided of water using compressed air or similar method reviewed by Owners Representative. Reopen, operate, and adjust system malfunctions accordingly during April of following season within three days of notification by Owner.

1.10 EXTRA STOCK - In addition to installed system furnish the following items to Owner:

A. 4 Pop-up spray heads with nozzles of each type used.

B. 2 Rotor heads of each type used.

PART 2 - PRODUCTS

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2.01 MATERIALS:

A. General Piping:

1. Pressure Supply Lines (downstream of backflow prevention units) - Class 200 PVC BE (1" - 2 1/2").

2. Non-pressure Lines - Class 200 PVC BE, 1” minimum size.

3. PVC Sleeving - Class 160 PVC.

B. Copper Pipe and Fittings:

1. Copper Pipe - Type K, hard tempered.

2. Fittings - Wrought copper, solder joint type.

3. Joints - Soldered with solder, 45% silver, 15% copper, 16% zinc, and

24% cadmium and solidus at 1125~F and liquids at 1145~F.

C. Brass Pipe and Fittings:

1. Brass Pipe - 85% red brass, ANSI Schedule 40 screwed pipe.

2. Fittings - Medium brass, screwed 125 pound class.

D. Plastic Pipe and Fittings:

1. Identification Markings:

a. Identify all pipe with following indelible markings:

1) Manufacturer's name.

2) Nominal pipe size.

3) Schedule of class.

4) Pressure rating.

5) NSF (National Sanitation Foundation) seal of approval.

6) Date of extrusion.

2. Solvent Weld Pipe - Manufactured from virgin polyvinyl chloride (PVC) compound in accordance with ASTM D2241 and ASTM D1784; cell classification 12454-B, Type 1, Grade 1.

a. Fittings - Standard wright, Schedule 40, injection molder PVC;

complying with ASTM D1784 and D2466, cell classification 12454-B.

1) Threads - Injection molded type (where required).

2) Tees and ells - Side gated.

b. Threaded Nipples - ASTM D2464, Schedule 80 with molded threads.

c. Joint Cement and Primer - Type as recommended by manufacturer of pipe and fittings.

E. Valve Boxes:

1. Gate Valves, Drip Line Blow-out Stubs, and Wire Stub Box - Carson #910- 12, or equal, box as detailed.

2. 3/4 inch through 2 inch Control Valves - Carson #1419-13B, or equal, box.

F. Electric Control Valves - Size and type required for project. Installed per manufactures recommendations. Valves shall have manual flow adjustment (except

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drip valves) and manual bleed nut. Acceptable electric valves: Hunter ICV series, Rain Bird PEB series or equal. Drip valve assemblies to be Hunter ICZ series Rain Bird XCZ-COM series, or equal.

G. Sprinkler Heads - Size and type required for project. Installed per manufactures recommendations. Acceptable sprinkler heads: Pop-up and Hi-pop spray heads Rain Bird 1806-SAM-PRS and 1812-SAM-PRS, with Rain Bird “MPR” spray nozzles, or equal. Gear driven rotors Hunter I-20-SS Ultra series, or equal.

PART 3 - EXECUTION

3.01 LANDSCAPE PLAN REVIEW AND COORDINATION - Contractor will be held responsible for coordination between landscape and irrigation system installation.

Landscape material locations shown on the Landscape Plan shall take precedence over the irrigation system equipment locations. If irrigation equipment is installed in conflict with the landscape material locations shown on the Landscape Plan, the Contractor will be required to relocate the irrigation equipment, as necessary, at Contractor’s expense.

3.02 INSPECTION - Examine areas and conditions under which Work of this Section is to be performed. Do not proceed with Work until unsatisfactory conditions have been corrected.

A. Grading operations, with the exception of final grading, shall be completed and approved by Owner before staking or installation of any irrigation system begins.

3.03 PREPARATION:

A. Staking shall Occur as Follows:

1. Mark, with powdered lime, routing of pressure supply line and flag heads for first few zones. Contact Owners Representative 48 hours in advance and request review of staking. Owner’s Representative will advise installer as to the amount of staking to be prepared. Owner’s Representative will review staking and direct changes if required. Review does not relieve installer from coverage problems due to improper placement of heads after staking.

2. If Project has significant topography, freeform planting beds, or other amenities, which could require alteration of irrigation equipment layout as deemed necessary by Owners Representative, do not install irrigation equipment in these areas until Owners Representative has reviewed equipment staking.

B. Install sleeving under asphalt paving and concrete walks, prior to concrete placement and paving operations, to accommodate piping and wiring. Compact backfill around sleeves to 95% Modified Proctor Density within 2% of optimum moisture content in accordance with STM D1557.

C. Trenching - Trench excavation shall follow, as much as possible, layout shown on Drawing. Dig trenches straight and support pipe continuously on bottom of trench.

Trench bottom shall be clean and smooth with all rock and organic debris removed.

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1. Clearances:

a. Piping 3 Inches and Larger - Make trenches of sufficient width (14 inches minimum) to properly assemble and position pipe in trench.

Minimum clearance of piping 3 inches or larger shall be 5 inches horizontally on both sides of the trench.

b. Piping Smaller than 3 Inches - Trenches shall have a minimum width of 7 inches.

c. Line Clearance - Provide not less than 6 inches of clearance between each line and not less than 12 inches of clearance between lines of other trades.

2. Pipe and Wire Depth:

a. Pressure Supply Piping - 24 inches from top of pipe.

b. PVC Sleeving - 24 inches from top of pipe.

c. Non-pressure Piping (rotor) - 18 inches from top of pipe.

d. Non-pressure Piping (pop-up) - 12 inches from top of pipe.

e. Control Wiring - Side of pressure main.

f. Drip Tubing - 12 inches from top of pipe.

g. Emitter Tubing (Micro-tubing) - 8 inches from top of pipe.

3. Boring will be permitted only where pipe must pass under obstruction(s) which cannot be removed. In backfilling bore, final density of backfill shall match that of surrounding soil. It is acceptable to use sleeves of suitable diameter installed first by jacking or boring, and pipe laid through sleeves.

Observe same precautions as though pipe were installed in open trench.

3.04 INSTALLATION - Locate other equipment as near as possible to locations designated. Deviations shall be reviewed by Owners Representative prior to installation.

A. PVC Piping - Snake pipe in trench as much as possible to allow for expansion and contraction. Do not install pipe when air temperature is below 40~F. Place manual drain valves at low points and dead ends of pressure supply piping to insure complete drainage of system. When pipe laying is not in progress, or at end of each day, close pipe ends with tight plug or cap. Perform Work in accordance with good practices prevailing in piping trades.

1. Solvent Weld PVC Pipe - Lay pipe and make all plastic to plastic joints in accordance with manufacturer's recommendations.

2. Flexible Plastic (Polyethylene) Pipe - Lay pipe and assemble fittings following manufacturer's recommendations.

B. Electric Control Valves - Install cross-handle 3 inches below finished grade, as detailed. When grouped together, allow at least 12 inches between valve box sides.

Install each remote control valve in a separate valve box. Install individual valve box flush with grade.

C. Valve Boxes:

1. Install one valve box for each type of valve installed as detailed. Valve box extensions are not acceptable except for master valves. Install gravel sump after compaction of all trenches. Place final portion of gravel inside valve box after valve box is backfilled and compacted.

2. Brand controller letter and station number on lid of each valve box. Letter

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and number size shall be no smaller than 1 inch and no greater in size than 1 1/2 inches. Depth of branding shall be no more than 1/8 inch into valve box lid.

D. Sprinkler Heads…