A04_Scope_of_Work_(SOW,_PWS,_SOO).pdf

Specifications/Statement of Work Bear River Migratory Bird Refuge Box Elder County, UT

2017 2D TO GSL WATER

CONTROL STRUCTURE

MODIFICATION

Asset No. 40161200

United States Fish and Wildlife Service Division of Engineering 134 Union Boulevard Lakewood, Colorado 80228

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

GENERAL INFORMATION AND REQUIREMENTS 01009 - 1

SECTION 01009 - GENERAL INFORMATION AND REQUIREMENTS

PART 1 - GENERAL

1.1 SUMMARY

A. Description of Work: The Work includes:

1. Demolition of existing concrete stoplog support walls.

2. Constructing new concrete overshot gate support walls.

3. Installing new overshot gates and operators.

4. Installing new walkway and handrail.

B. Location: Work under this Contract is located approximately 16 miles southwest of Brigham City, Utah, on the Bear River Migratory Bird Refuge.

1.2 REFERENCES

A. Referenced Specifications/Standards with Abbreviations and/or Acronyms: Wherever the following acronyms are used in these specifications or on the drawings, they are to be construed the same as the respective expressions represented. Copies of the referenced specifications/standards referred to herein may be procured by the Contractor, from the following:

ACI American Concrete Institute

P.O. Box 19150 Detroit, MI 48219

ASTM American Society for Testing and Materials

100 Barr Harbor Dr.

West Conshohocken PA 19428-2959

EPA Environmental Protection Agency

401 M St., SW Washington, DC 20460

OSHA Occupational Safety and Health Administration

US Department of Labor 200 Constitution Ave., NW

Washington DC 20210

AASHTO American Association of State Highway and Transportation Officials

444 North Capitol Street, N.W., Suite 249 Washington, DC 20001

1.3 DEFINITIONS

A. Approvals: Approval of the submittals is an indication that the Contractor's submittals have been reviewed and that there are no exceptions taken, except as noted. Approval of deviations shall

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

GENERAL INFORMATION AND REQUIREMENTS 01009 - 2

apply only to those deviations or omissions from the requirements of the drawings and specifications brought to the Contracting Officer's attention in writing. After approval of an item, submit a substitute for approval when the approved item cannot be purchased or delivered in time to avoid delay in completion of the project. Approval of submittals does not relieve the Contractor of errors, omissions, or from complying with the Contract’s requirements.

1.4 SUBMITTALS

A. Submit manufacturer’s literature, testing reports, and samples.

B. Requirements: Refer to specifications for submittals required. Allow at least 10 working days for review. Submittals shall be delivered to the Contracting Officer’s Representative, Division of Engineering 134 Union Boulevard, Lakewood, CO 80228

C. The Contractor shall review and approve all submittals required under the Contract. The

Contractor shall submit 3 copies of drawings, schedules, brochures, catalogs, and other data required for the work before proceeding with the work. Submittals shall come directly from the Contractor with their stamp and signature of approval. Submittals that do not indicate the Contractor's review and approval will be returned without review; submittals will not be accepted from sub-contractors or suppliers. The Government will require 7 working days for review of each submittal, plus transmittal time back and forth. Required submittals are listed in the section of work for which the submittal is required.

D. As-built Drawings: Upon completion of the work, the Contractor shall furnish one set of "as built" drawings. These drawings shall be contract drawings corrected in red ink to show any differences between contract drawings and actual construction. All changes made during construction shall be noted. Provide sketches and details where necessary to more fully describe the work performed. Each drawing showing changes in dimensions, details, or containing supplemental information shall be plainly marked "As Built" and shall contain the signature of both the Government Project Inspector and the Contractor.

E. Identification of Submittals: Completely identify each submittal by showing at least the following information:

1. Name and address of submitter, plus name and telephone number of the individual to contact for further information.

2. Name of project as it appears in these specifications.

3. Contract number, drawing number, and specification section number to which the submittal applies.

4. Whether this is an original submittal or re-submittal.

5. Each item shall clearly note the manufacturer's name and address, trade name, product, lot, style, color, catalog designation or model number, and locations of use.

1.5 QUALITY ASSURANCE

A. Codes and Standards: The work shall comply with codes and standards applicable to each type of work and as listed in the individual sections of these specifications. This Contract incorporates materials, applications, and tests by reference, with the same force and effect as if they were given in full text.

B. Conflict: Where a conflict occurs between reference documents and project specifications, the

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

GENERAL INFORMATION AND REQUIREMENTS 01009 - 3

project specifications shall govern.

C. Measurements: Where approved manufacturer's diagrams and shop drawings give specific measurements or rough-in dimensions for equipment, these dimensions shall take precedence over dimensions indicated on the drawings.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Delivery: Protect products incorporated into the work from damage while in transit to the site.

Products must be delivered in original unopened containers with manufacturer's name, brand designation, and contents legibly indicated.

B. Storage: Provide temporary storage facilities for products. Storage shall comply with the manufacturer's instructions. The storage area shall permit access for inspection and handling.

C. Handling: Load and unload products protecting them from damage.

1.7 PROJECT CONDITIONS

A. Access to the Work: The Contractor shall coordinate the use of the premises with the Contracting

Officer and Refuge Manager to avoid interruption of station operations. The Contractor is responsible for protection and safekeeping of the site and all furnished or constructed items until final acceptance by the Government. The Contractor may use existing roads for access to the site.

The Contractor shall maintain existing roads and access ways affected by the Contractor’s operations. Any damage done by the Contractor’s operations shall be repaired or restored at the Contractor's expense.

B. No dewatering or diversion of water is necessary for construction. Site shall be dry during construction.

C. Housekeeping: Routinely, or upon notice by the Government, the Contractor shall clean up and remove from the job site all waste, debris, equipment and surplus material resulting from operations. In the event he fails to complete the requested clean-up of any specific area within seven calendar days following notification, the Government may cause this work to be performed at the Contractor’s expense.

D. Staging Areas: All operations of the Contractor, including storage of materials, on Government premises shall be confined to areas authorized or approved by the Government. Government premises adjacent to the construction area may be made available for use by the Contractor without cost whenever such use will not interfere with other Government uses or purposes. Areas used for staging shall be delineated by the Refuge Manager prior to commencement of work.

Note that storage of Contractor’s equipment on Government premises is at its own risk and the Government assumes no responsibility for vandalism or theft.

E. Availability of Utilities: Power and potable water for construction is not available at the site.

The Contractor shall make all arrangements to provide power and water if needed for its operations.

1.8 SEQUENCING AND SCHEDULING

A. Work Schedule: The schedule shall be submitted at the pre-work conference. When requested, BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

GENERAL INFORMATION AND REQUIREMENTS 01009 - 4

submit an updated schedule within 3 calendar days. As a minimum, the estimated start and completion dates shall be shown in the estimate.

B. The Contractor’s normal work schedule shall be 8:00 a.m. to 4:30 p.m., Monday through Friday.

No work shall be performed on Saturdays, Sundays, or federal holidays, unless authorized in writing by the Contracting Officer.

1.9 SAFETY

A. The Contractor shall comply with all applicable safety codes and regulations including but not limited to Occupational Safety and Health Administration regulations, 29 CFR, Part 1926. The Contractor shall perform his operations so as to ensure safety of his workers, the public, and Government personnel.

PART 2 - PRODUCTS

(There are no applicable requirements.)

PART 3 - EXECUTION

3.1 PROJECT MEETINGS

A. Pre-Work Conference:

1. Will be held prior to the start of work. The Contractor will be notified in advance of meeting time, date and place. The purpose will be to review required work, project drawings and specifications, construction schedules, payroll and payments, and administrative provisions of the Contract.

2. The Contractor, subcontractors and the persons responsible for coordination of the work shall be present at the meeting.

3. Be prepared to summarize and explain procedures planned for the project.

B. Progress Meetings:

1. To be held at the project site, or as determined by the Contracting Officer.

2. May be called by either the Contracting Officer or the Contractor. Request shall state who should attend and include an agenda.

C. Final Inspection:

1. To be held at the project site, or as determined by the Contracting Officer.

2. Notify the Contracting Officer in writing at least 10 working days before the completion date to allow the Government to schedule a final inspection.

3.2 DISPOSAL OF DEBRIS

A. Items or debris not designated as salvage shall be disposed of by the Contractor off station grounds in a legal manner and in accordance with applicable local codes.

3.3 WARRANTY

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

GENERAL INFORMATION AND REQUIREMENTS 01009 - 5

A. Requirements: Materials and equipment furnished under this Contract shall be covered by the most favorable commercial warranties given to customers for such materials or equipment. The rights or remedies provided herein are in addition to and do not limit rights afforded to the Government by other clauses of this Contract. With respect to warranties, expressed or implied, from manufacturers or suppliers for materials or equipment furnished under the Contract the Contractor shall:

1. Obtain warranties that would be given in normal commercial practices.

2. Require warranties to be executed, in writing, for the benefit of the Government.

3. Submit warranties to the Contracting Officer prior to the final inspection.

PART 4 - MEASUREMENT AND PAYMENT

4.1 MEASUREMENT

A. All items associated with complying with this section will not be measured for payment.

4.2 PAYMENT

A. Payment for all work associated with complying with this section shall be included in the prices bid in the schedule for other items of work. No separate payment will be made to the Contractor for work required in this section.

END OF SECTION 01009

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

CAST-IN-PLACE CONCRETE 03300-1

SECTION 03300 – CAST-IN-PLACE CONCRETE

PART 1 - GENERAL

A. This Section includes cast-in-place concrete for overshot gate support walls.

1.2 SUBMITTALS

A. Submit proposed mix design to Contracting Officer’s Representative for review and acceptance, a minimum of 10 working days prior to commencement of work.

B. Provide concrete batch tickets complying with ASTM C 94 with each batch of concrete delivered to the site.

C. Steel Reinforcement Shop Drawings: Details of fabrication, bending, and placement, prepared according to ACI 315, "Details and Detailing of Concrete Reinforcement." Include material, grade, bar schedules, stirrup spacing, bent bar diagrams, arrangement, and supports of concrete reinforcement. Include special reinforcement required for openings through concrete structures.

D. Concrete Form Inspection: ALL FORMS TO BE REVIEWED AND INSPECTED PRIOR

TO CONCRETE DELIVERY AND WORK. FORMS ARE TO BE INSPECTED FOR

SQUARENESS AND VERTICALNESS PRIOR TO PLACING ANY CONCRETE.

CONTRACTOR TO RECEIVE ACCEPTANCE VIA SUBMITTAL FORM PRIOR TO

PLACING CONCRETE. CONTRACTOR TO CONTACT CONTRACTING OFFICER

FOR INSPECTION – A MINIMUM OF SEVEN (7) DAYS NOTICE TO SCHEDULE IS

REQUIRED.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Deliver, store, and handle steel reinforcement to prevent bending and damage.

PART 2 - PRODUCTS

2.1 MATERIALS

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

B. Fine and Coarse Aggregates: ASTM C 33, graded, 1-inch nominal maximum coarse-aggregate size.

1. Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.

C. Water: Clean, not detrimental to concrete, free from harmful amounts of sediments, salts, or organic impurities, comply with ASTM C 94, paragraph 4.1.3.1 including table 1.

D. Air Entrainment Admixture: ASTM C 260.

E. Curing compound conforming to ASTM C 309.

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

CAST-IN-PLACE CONCRETE 03300-2

2.2 CONCRETE MIX

A. Compressive Strength at 28 days, ASTM C 31 and C 39: 4,000 pounds per square inch.

B. Water-to-cement ratio: not to exceed 52 percent.

C. Each cubic yard of concrete shall contain not less than 4.5 bags of cement.

D. Slump: 4 inches at placement.

E. Entrained air content: 5 to 7 percent by volume.

F. Concrete used in the construction of the water control structure shall be a dense, durable product.

2.3 EPOXY REPAIR MORTAR

A. Provide repair mortar suitable for the intended purpose. Contractor to prepare and place repair mortar as per Manufacturer recommendations for use. Allow ample curing time prior to placing into service.

B. Manufacturers offering products that may be incorporated into the Work include, but not limited to the following:

a. Sika Corporation

2.4 STEEL REINFORCEMENT

A. Reinforcing Bars: ASTM A 615/A 615M, Grade 60, deformed.

2.5 REINFORCEMENT ACCESSORIES

A. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars and welded wire fabric in place. Manufacture bar supports according to CRSI's "Manual of Standard Practice" from steel wire, plastic, or precast concrete or fiber-reinforced concrete of greater compressive strength than concrete, and as follows:

1. For concrete surfaces exposed to view where legs of wire bar supports contact forms, use

CRSI Class 1 plastic-protected or CRSI Class 2 stainless-steel bar supports.

2. Rocks or blocks used to support rebar will not be allowed.

3.1 BATCHING, MIXING, PLACING AND CURING

A. CONTRACTOR TO NOTIFY CONTRACTING OFFICER’S REPRESENTATIVE

AFTER FORMS ARE SET TO ALLOW INSPECTION OF THE FORMS FOR

SQUARENESS AND VERTICALNESS PRIOR TO PLACING ANY CONCRETE.

CONTRACTOR TO RECEIVE ACCEPTANCE OF FORMS PRIOR TO PLACING

CONCRETE.

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

CAST-IN-PLACE CONCRETE 03300-3

B. Construction operations shall be done in such a manner that erosion and air and water pollution are minimized and held within legal limits. The completed job shall be workmanlike and shall present a good appearance.

C. The temperature of the concrete shall be maintained below 90 °F during mixing, conveying and placing.

D. Comply with ACI 305 - Hot Weather Concreting, when air temperatures exceed or are expected to exceed 90 °F.

E. Concrete shall be mixed and delivered in conformance with ASTM C 94.

F. Concrete shall be discharged from the mixer no later than 1-1/2 hours after water is added to the cement and aggregates.

G. The use of accelerators or antifreeze compounds shall not be allowed.

H. Concrete shall not be placed during freezing weather unless adequate protection is provided to keep the concrete temperature between 50 and 90 °F for a period of not less than 7 days.

I. Construction of concrete structure shall not be permitted when minimum 24 hour temperatures are expected to drop below 32 °F unless the method of applying artificial heat to the lining has prior approval by the Contracting Officer’s Representative.

J. Concrete shall not be placed against frozen surfaces.

K. All concrete exposed to view shall have a float finish or its equivalent and shall be free of honeycombed or sand-streaked areas.

L. Chamfer exterior corners and edges of permanently exposed concrete. Chamfer size shall be ¾ inch.

M. Provide a minimum concrete coverage over reinforcement of 3”.

N. Apply curing compound to the concrete surface within 30 minutes after placing and finishing the concrete. The application rate shall be not less than 1.0 gallon of curing compound per 200 square feet of surface. Use only white pigmented compounds. Spray the compound over the surface so that a continuous white cover is obtained. Two applications to achieve the required application rate may be required.

O. Protect all concrete against damage until final acceptance by the Government.

3.2 EMBEDDED ITEMS

A. Place and secure anchorage devices and other embedded items required for adjoining work that is attached to or supported by cast-in-place concrete. Use Setting Drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

3.3 STEEL REINFORCEMENT

A. General: Comply with CRSI's "Manual of Standard Practice" for placing reinforcement.

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

CAST-IN-PLACE CONCRETE 03300-4

B. Clean reinforcement of loose rust and mill scale, earth, ice, and other foreign materials.

C. Accurately position, support, and secure reinforcement against displacement. Locate and support reinforcement with bar supports to maintain minimum concrete cover. Do not tack weld crossing reinforcing bars.

D. Set wire ties with ends directed into concrete, not toward exposed concrete surfaces.

3.4 TOLERANCES

A. Concrete structures shall be installed to design lines and elevations within the following tolerances:

1. The elevation of the top edge or of the finished invert at any point shall be within 0.10 foot of the specified design elevation.

2. The thickness of the walls shall meet the specified thickness to allow for new overshot gate installation.

3.5 FIELD QUALITY CONTROL

A. Testing Agency: Contractor will engage, at its expense, a qualified independent testing and inspecting agency to perform field tests and inspections and to prepare test reports. All testing results shall be submitted to the Contracting Officer, for review and acceptance, a minimum of 48 hours after completion of test.

B. Mixed concrete shall be tested for consistency (slump), temperature, air content, and unit weight.

Concrete cylinders shall be collected for compression tests. Contractor shall obtain a sample of each type of concrete once each day that concrete is placed. Samples shall be representative of the concrete placed during the day the sample is taken. Concrete samples shall be sufficiently large to make all tests without reuse of concrete in other tests or in cylinders.

3.6 CONCRETE SURFACE REPAIRS

A. Defective Concrete: Repair and patch defective areas when approved by Government. Remove and replace concrete that cannot be repaired and patched to Government's approval.

B. Patching Mortar: Mix dry-pack patching mortar, consisting of one part Portland cement to two and one-half parts fine aggregate passing a No. 16 sieve, using only enough water for handling and placing.

C. Repairing Formed Surfaces: Surface defects include color and texture irregularities, cracks, spalls, air bubbles, honeycombs, rock pockets, fins and other projections on the surface, and stains and other discolorations that cannot be removed by cleaning.

1. Immediately after form removal, cut out honeycombs, rock pockets, and voids more than 1/2 inch in any dimension in solid concrete but not less than 1 inch in depth. Make edges of cuts perpendicular to concrete surface. Clean, dampen with water, and brush-coat holes and voids with bonding agent. Fill and compact with patching mortar before bonding agent has dried.

Fill form-tie voids with patching mortar or cone plugs secured in place with bonding agent.

2. Repair defects on surfaces exposed to view by blending white Portland cement and standard

Portland cement so that, when dry, patching mortar will match surrounding color. Patch a

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

CAST-IN-PLACE CONCRETE 03300-5

test area at inconspicuous locations to verify mixture and color match before proceeding with patching. Compact mortar in place and strike off slightly higher than surrounding surface.

3. Repair defects on concealed formed surfaces that affect concrete's durability and structural performance as determined by Government.

D. Repairing Unformed Surfaces: Test unformed surfaces, such as floors and slabs, for finish and verify surface tolerances specified for each surface. Correct low and high areas. Test surfaces sloped to drain for trueness of slope and smoothness; use a sloped template.

1. Repair finished surfaces containing defects. Surface defects include spalls, popouts, honeycombs, rock pockets, crazing and cracks in excess of 0.01 inch wide or that penetrate to reinforcement or completely through unreinforced sections regardless of width, and other objectionable conditions.

2. After concrete has cured at least 14 days, correct high areas by grinding.

3. Correct localized low areas during or immediately after completing surface finishing operations by cutting out low areas and replacing with patching mortar. Finish repaired areas to blend into adjacent concrete.

4. Repair random cracks and single holes 1 inch or less in diameter with patching mortar.

Groove top of cracks and cut out holes to sound concrete and clean off dust, dirt, and loose particles. Dampen cleaned concrete surfaces and apply bonding agent. Place patching mortar before bonding agent has dried. Compact patching mortar and finish to match adjacent concrete. Keep patched area continuously moist for at least 72 hours.

E. Perform structural repairs of concrete, subject to Government's approval, using epoxy adhesive and patching mortar.

PART 4 - MEASUREMENT AND PAYMENT

4.1 MEASUREMENT

A. Measurement for Cast-In-Place Concrete for walls will not be made. Measurement shall consist of the material quantity as shown in the bid schedule.

B. All other items associated with complying with this section will not be measured for payment.

4.2 PAYMENT

A. Payment for Cast-In-Place Concrete for walls shall be made at the unit price per each bid in the schedule for “Construct New Concrete Overshot Gate Support Walls.”, which unit price shall include the cost of all work associated therewith.

B. All other costs of complying with this section shall be included in the prices bid in the schedule for other items of work. No separate payment will be made to the Contractor for work other than that described above.

END OF SECTION 03300

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

METAL FABRICATIONS 05500 - 1

SECTION 05500 - METAL FABRICATIONS

PART 1 - GENERAL

This Section includes the following:

1. Handrail Anchoring Plates at Overshot Gate Support Walls.

2. Galvanized Walkway Planks.

3. Pipe Handrails.

4. Leveling Plates for Gate Assemblies.

1.2 SUBMITTALS

A. Product Data: For the following:

1. Steel Handrail Anchoring Plates.

2. Galvanized Walkway Planks.

3. Pipe for Handrails.

B. Shop Drawings: Include plans, elevations, sections, and details of metal fabrications and their connections. Show anchorage and accessory items.

C. Templates: For anchors and bolts.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. In other Part 2 articles where titles below introduce lists, the following requirements apply to product selection:

1. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, manufacturers specified.

2.2 METALS

A. Metal Surfaces, General: Provide materials with smooth, flat surfaces without blemishes.

B. Ferrous Metals:

1. Steel Plates, Shapes, and Bars: ASTM A 36/A 36M.

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

METAL FABRICATIONS 05500 - 2

2. Steel Pipe: ASTM A 53, standard weight (Schedule 40), unless another weight is indicated or required by structural loads.

3. Iron Casting: ASTM A 48, Class 30, unless another class is indicated or required by structural loads.

4. Concrete inserts: Smooth, threaded or wedge type; galvanized ferrous castings, ASTM A 27 cast steel. Provide bolts, washers, and shims as needed, hot-dipped galvanized per

ASTM A 153/A 153M.

5. Metal Planks at Walkway:

a. Hot Dipped Galavanized Plain Steel

6. Pipe for Handrail:

a. Schedule 40 Pipe 2” diameter plain steel to be painted. Provide color chart to

Refuge Manager for color selection prior to handrail manufacture.

7. Manufacturers offering products that may be incorporated into the Work include, but not limited to the following:

a. McNichols Co., phone 1-800-237-3820

2.3 FASTENERS

A. General: Zinc-plated fasteners with coating complying with ASTM B 633, Class Fe/Zn 5.

Select fasteners for type, grade, and class required.

2.4 MISCELLANEOUS MATERIALS

A. Universal Shop Primer: Fast-curing, lead- and chromate-free, universal modified-alkyd primer complying with MPI #79.

B. Zinc-Rich Primer: Complying with SSPC-Paint 20 or SSPC-Paint 29 and compatible with topcoat.

a. Benjamin Moore & Co.; Epoxy Zinc-Rich Primer CM18/19.

b. Carboline Company; Carbozinc 621.

c. ICI Devoe Coatings; Catha-Coat 313.

d. International Coatings Limited; Interzinc 315 Epoxy Zinc-Rich Primer.

e. PPG Architectural Finishes, Inc.; Aquapon Zinc-Rich Primer 97-670.

f. Sherwin-Williams Company (The); Corothane I GalvaPac Zinc Primer.

g. Tnemec Company, Inc.; Tneme-Zinc 90-97.

C. Galvanizing Repair Paint: SSPC-Paint 20, high-zinc-dust-content paint for regalvanizing welds in steel.

D. Nonshrink, Nonmetallic Grout: Factory-packaged, nonstaining, noncorrosive, nongaseous grout complying with ASTM C 1107.

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

METAL FABRICATIONS 05500 - 3

2.5 FABRICATION

A. General: Preassemble items in the shop to greatest extent possible. Use connections that maintain structural value of joined pieces.

1. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges.

Remove sharp or rough areas on exposed surfaces.

2. Weld corners and seams continuously. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals. Obtain fusion without undercut or overlap. Remove welding flux immediately. Finish exposed welds smooth and blended.

3. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners where possible. Locate joints where least conspicuous.

4. Fabricate seams and other connections that will be exposed to weather in a manner to exclude water. Provide weep holes where water may accumulate.

5. Where units are indicated to be cast into concrete or built into masonry, equip with integrally welded steel strap anchors, not less than 24 inches o.c.

B. Loose Bearing and Leveling Plates: Provide loose bearing and leveling plates for steel items bearing on masonry or concrete construction. Drill plates to receive anchor bolts.

1. Provide anchors for attachment to walls.

2. Drill for mechanical anchors and countersink. Locate not more than 4 inches from ends and not more than 12 inches o.c.

2.6 FINISHES

A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for recommendations for applying and designating finishes. Finish metal fabrications after assembly.

B. Steel and Iron Finishes:

1. Hot-dip galvanize items as indicated to comply with ASTM A 123/A 123M or ASTM A 153/A 153M as applicable.

2. Preparation for Shop Priming: Prepare uncoated ferrous-metal surfaces to comply with requirements indicated below for environmental exposure conditions of installed metal fabrications:

a. Exteriors (SSPC Zone 1B) and Items Indicated to Receive Zinc-Rich Primer:

SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."

3. Shop Priming: Apply shop primer to uncoated surfaces of metal fabrications, except those with galvanized finishes and those to be embedded in concrete, sprayed-on fireproofing, or masonry, to comply with SSPC-PA 1, "Paint Application Specification No. 1: Shop, Field, and Maintenance Painting," for shop painting.

BEAR RIVER MIGRATORY BIRD REFUGE 2D TO GSL WATER CONTROL

BOX ELDER COUNTY, UTAH STRUCTURE MODIFICATION 2017

METAL FABRICATIONS 05500 - 4

(There are no applicable requirements)

PART 4 - INSTALLATION

A. General: Perform cutting, drilling, and fitting required for installing metal fabrications. Set metal fabrications accurately in location, with edges and surfaces level, plumb, and true.

1. Fit exposed connections accurately together. Weld connections that are not to be left as exposed joints but cannot be shop welded. Do not weld, cut, or abrade surfaces of exterior units that have been hot-dip galvanized after fabrication.

2. Provide anchorage devices and fasteners where metal fabrications are required to be fastened to in-place construction.

3. Provide temporary bracing or anchors in formwork for items that are to be built into concrete, masonry, or similar construction.

B. Set bearing and leveling plates on cleaned surfaces using wedges, shims, or leveling nuts. After bearing members have been positioned and plumbed, tighten anchor bolts and pack solidly with non-shrink, nonmetallic grout.

C. Touch up surfaces and finishes after erection.

1. Painted Surfaces: Clean field welds, bolted connections, and abraded areas and touch up paint with the same material as used for shop painting.

2. Galvanized Surfaces: Clean field welds, bolted connections, and abraded areas and repair galvanizing to comply with ASTM A 780.

PART 5 - MEASUREMENT AND PAYMENT

5.1 MEASUREMENT

A. Measurement for furnishing and installing stainless screen slots at kettles will not be measured for payment.

B. All other items associated with complying with this section will not be measured for payment.

5.2 PAYMENT

A. Payment for furnishing and installing walkway planks and handrails shall be included in the price bid in the schedule for “Construct Walkway and Handrails.”, which unit price shall include the cost of all work associated therewith.

B. All other costs of complying with this section shall be included in the prices bid in the schedule for other items of work. No separate payment will be made to the Contractor for work other than that described above.

END OF SECTION 05500

B. All other costs of complying with this section shall be included in the prices bid in the schedule for other items of work. No separate payment will be made to the Contractor for work other than that described above.

3. Shop Priming: Apply shop primer to uncoated surfaces of metal fabrications, except those with galvanized finishes and those to be embedded in concrete, sprayed-on fireproofing, or masonry, to comply with SSPC-PA 1, "Paint Application Specificat...