24-13_-_Addendum_No._2.pdf

(Addn. No. 2, Pg. 1)

ADDENDUM NO. 2

PROJECT TITLE: FULL PIPE PENETRATION REPLACEMENT

DEFERRED MAINTENANCE PROGRAM (DMP)

LOCATION: DAVIS – SITES 545 AND 549

SPECIFICATION NO.: 24-13

CONTRACT NO.: C51674

ISSUED BY: STATE OF CALIFORNIA

DEPARTMENT OF WATER RESOURCES

DATE ISSUED: JANUARY 29, 2025

The following changes are hereby made by this addendum:

1. Revised section(s) with page numbers: 00300-2, 01330-15, 02300-{1-3, 5, 7, 7a}, 02616-{1, 2, 6}, 07920-{1, 2}, 11282-{1-8}

BIDDER'S SIGNATURE

This addendum shall be signed below in the same manner as the bid is signed.

Bidder: ________________________________________________________

By (Authorized Officer): ___________________________________________

Business Address: _______________________________________________

Dated: ________________________, 20__.

THIS ADDENDUM COMPRISES 22 PAGES.

THIS COVER PAGE MUST BE SIGNED AND RETURNED WITH THE BID.

EXECUTION OF THIS ADDENDUM CONSTITUTES ACKNOWLEDGEMENT

OF THE PREVIOUS ADDENDUM.

Information Available

00300-2

b. Clean Water Act Section 404 (33 USC Section 1344).

Nationwide Permits 7 and 33 issued by U.S. Army Corps of Engineers. September 25, 2024. SPK-2023-00751.

c. Federal Clean Water Act Section 401 as follows:

1. Federal Clean Water Act Section 401. Water Quality Certification issued by Central Valley Regional Water Quality Control Board. January 10, 2024. WDID #5A57CR00214A.

2. Federal Clean Water Act Section 401. Amendment to Water Quality Certification issued by Central Valley Regional Water Quality Control Board. February 29, 2024. WDID

#5A57CR00214A.

d. California Fish and Game Code 1602. Lake and Streambed Alteration Agreement issued by California Department of Fish and Wildlife. April 15, 2024. No. YOL-45628-R2.

3) Encroachment Permit:

a. Encroachment Permit (EP) with the Yolo County Department of Public Works (YCDPW) for work within YCDPW right of way at Site 545 (County Road 29). The Department has an existing EP application pending with YCDPW under the EP number

“PW2022-0233”.

4) Geotechnical Investigation Report:

a. Project Geology Report No. D-233: Geologic Data Report – Willow Slough Bypass LM 4.29 and 5.40: Full Pipe Penetration Replacement – Deferred Maintenance Program.

5) Existing utility for sites 545&549:

a. Alignment sheet for existing CPN pipeline.

b. CPN Pipeline excavation guidelines.

END OF DOCUMENT

G-24 (Addn. No. 2, Pg. 2)

Submittals

(1) Number of days from receipt of Notice to Begin Work or time scheduled by Contractor in 01330, 1.04 C, Submittal Schedule.

01330-15 G-24

(Addn. No. 2, Pg. 3)

SUBMITTAL REGISTER

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DESCRIPTION OF SUBMITTAL

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CONTRACTOR

SCHEDULED

DATES

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SUBMIT BY

01330, 1.04 C, No. of days(1), or as specified

03 03315 – CONTROLLED LOW STRENGTH MATERIAL (CLSM)

03315 1.04 A.1 CLSM Mix Design Data X X X X

1.04 A.2 CLSM Backfill Work Plan X

1.04 A.3 CLSM Pre-Placement Check-Out Form X

1.04 A.4 Quality Control Test Results X

03810 – CONCRETE DRY PACK REPAIRS

03810 1.04 A Concrete repair surface preparation plan X

1.04 B Packaged repair materials X

1.04 C Dry pack placement plan X

05 05000 – MATERIALS AND WORKMANSHIP

05000 1.04 A Procedures and Material Data & Reports X X X X

05500 – MISCELLANEOUS METALWORK

05500 1.04 A General Product Data X X X

1.04 B Shop Drawings X X

1.04 C Quality Control Submittals X X X

07 07920 – SEALANTS

07920 1.04 A.1 Sealant Data X X X

09 09970 – COATING

09970 1.04 A Product Data X X X

1.04 B Working Drawings X X

1.04 C Material Safety Data Sheets (MSDS) X X

1.04 D Calibration X X

11 11281 – CAST IRON SLIDE GATES

11281 1.04 A.1 Product technical data X X

1.04 A.2 Test Procedures for Field Test X

1.04 A.3 Certificates and Test Reports X X

Earthwork

02300-1 G-24 (Addn. No. 2, Pg. 4)

SECTION 02300

EARTHWORK

PART 1 GENERAL

1.01 DESCRIPTION

A. This section covers the contract items Excavation and Compacted Levee Embankment.

B. The contract items include excavating, transporting, stockpiling, processing, moisture conditioning, placing, and compacting materials obtained from excavations required to produce the lines and grades shown. Excavation also includes potholing.

1.02 RELATED SECTIONS

A. Supplementary General Conditions, General Conditions, Division 1 sections, and Drawings apply to this section. This section may require direct correlation with the following sections of the contract:

1. Section 02220 – Selective Demolition.

2. Section 02230 – Clearing and Grubbing.

3. Section 02240 – Dewatering.

4. Section 02305 – Earthwork Testing.

5. Section 02616 – Reinforced Concrete Pipe.

6. Section 02720 – Aggregate Base.

7. Section 02925 – Seeding and Erosion Control.

8. Section 03100 – Concrete Formwork.

9. Section 03300 – Cast-in-Place Concrete.

1.03 REFERENCES

A. The following publications form a part of this specification to the extent referenced. Application of these publications shall conform to Document 00702 – Interpretation of the Contract, Paragraph 2:

1. American Society for Testing and Materials (ASTM):

02300-2 G-24 (Addn. No. 2, Pg. 5)

a. ASTM D 698 – Standard Test Method for Laboratory Compaction Characteristics of Soil Using Standard Effort (12400 ft-lbf/ft3).

b. ASTM D 1557 – Standard Test Method for Laboratory Compacting Characteristics of Soil Using Modified Effort.

c. ASTM D 4318 – Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils.

d. ASTM D 6913 – Standard Test Methods for Particle-Size Distribution (Gradation) of Soils Using Sieve Analysis.

2. Construction Safety Orders of the California Division of Industrial Safety.

1.04 SUBMITTALS

A. The Contractor shall submit the following for approval:

1. Excavation plan: Methods and equipment for excavation, including potholing.

2. Compaction equipment data and specifications.

3. Placement methods.

4. Test results of materials sampled and tested for quality control.

5. Dimensions, size, and shape of the temporary stockpile area and turnaround ramp.

6. Temporary Cofferdam:

a. Design, plan, and method for construction of temporary cofferdam.

1.05 DEFINITIONS

A. The contract item Excavation includes the following:

1. Remove aggregate base at the excavated area and stockpile area and place aggregate base at the nearby location.

2. Excavation of the existing levee to the lines and grades as shown for construction of headwalls, outlet structure, risers, riser removal, pipe removal, and pipe replacement.

02300-3 G-24 (Addn. No. 2, Pg. 6)

3. Trench excavation.

4. Transporting, stockpiling, and utilizing stockpile area as the turnaround ramp and construction ramps.

5. Removal of temporary stockpiling.

6. Constructing and removal of the temporary cofferdam.

7. Removal of excess materials from the work site and disposal of objectionable and unsuitable material.

8. Removal of temporary turnaround ramp and construction ramps.

9. Potholing near existing utilities.

B. The contract item Compacted Levee Embankment includes processing, moisture conditioning, placement of suitable materials, and compacting excavated levee material as embankment fill. Excavated levee material includes aggregate base stockpiled at the nearby location.

C. Percent Compaction: The ratio, expressed as a percentage, of the field dry density to the maximum dry density as determined by the appropriate testing method.

D. Moisture Conditioning: The process of adding or removing water to or from earthwork materials using equipment necessary to ensure thorough penetration and uniform distribution of moisture in the materials, until the targeted moisture content is achieved.

PART 2 PRODUCTS

2.01 MATERIALS

A. Suitable Material:

1. Suitable material as defined in Table 2.01. Obtain suitable material from onsite excavations. Materials will require blending and moisture conditioning to meet the embankment requirements outlined in these Specifications.

B. Unsuitable Material:

1. Materials classified as organic clay (OH) or organic silt (OL) are unsuitable.

2. Contaminated materials exceeding California Code of Regulations Title 22 regulatory limits are unsuitable and shall be removed from the site at the Contractor’s expense.

02300-5 G-24 (Addn. No. 2, Pg. 7)

B. Water Application Equipment:

1. Equipment for applying water shall be of a type and quality adequate for the work, shall be free of major leaks or equipment problems, and shall be equipped with distributor bars or other approved device to ensure uniform application. Water supply trucks shall be equipped with meters, gauges, or other devices, capable of measuring the quantities of water dispensed.

C. Disking Equipment:

1. Disking equipment used to break up, blend, or moisture condition materials shall be sized to penetrate a minimum depth of 8 inches.

Disk serrations shall break up and blend the materials. In no case shall the depth of the disk serrations be allowed to wear down to less than 50 percent of their depth when new.

D. Equipment Maintenance:

1. Placing, mixing, and compaction equipment shall be maintained in proper operating condition. The Engineer may direct the Contractor to improve the method or increase efficiency by replacing inadequate or worn equipment if tests indicate areas of compacted fill are not within specified requirements.

E. Potholing Equipment:

1. Contractor shall use hand equipment and nondestructive tools to locate existing utilities. All other equipment, such as an excavator, is not allowed to perform potholing. If approved by the Engineer, the Contractor may use air (vacuum) and water (jetting) methods.

PART 3 EXECUTION

3.01 GENERAL

A. The temporary cofferdams shall be installed prior to removal of existing culvert and headwall.

B. Prior to excavation or stockpile materials, Contractor shall remove aggregate base at the ground surface and place them at the nearby location.

C. Ground surface shall be restored to pre-construction condition after completion.

D. Excavated material shall be used to construct a temporary turnaround ramp, temporary construction ramp, temporary cofferdam, and temporarily stockpiled in areas designated by the Engineer. The Contractor shall remove temporary turnaround ramp, temporary construction ramp, temporary cofferdam, and stockpiles and restore the ground to the pre-project condition.

02300-7 G-24 (Addn. No. 2, Pg. 8)

Department. Overexcavation may begin only after receiving all approval from the Engineer.

J. Blasting: Blasting shall not be allowed.

K. Classification: Excavation methods and the nature of materials encountered in the various types of excavation will not be classified for payment.

L. Safety: Excavations and cut slopes shall conform to the Safety Orders.

In addition, trench excavation shall conform to Document 00701 – Safety, Paragraph 14.C. When trench support shoring, trench shields or other protective measures are not used, trenches shall have sloping sides which are safe for the materials encountered.

M. The width of the trenching below the top of the pipe shall be at least the outside diameter (OD) plus 2 feet or as shown.

N. Potholing:

1. Contractor shall prevent damage to existing utilities during potholing. Potholing shall be performed in accordance with the California Code of Regulations Title 8, Section 1541.

2. Unless shown to be removed, the Contractor shall protect all active utility lines as shown. If damaged during potholing or excavation, the utilities shall be repaired or replaced at the Contractor's expense.

3. Unless shown to be removed, potholed areas shall be restored to their previous conditions. Compaction and backfilling of all layers above the bottom of the pothole, including but not limited to subgrade, subbase, base coarse, and surface coarse, shall be completed with appropriate standards and procedures that return all replaced layers back to their original condition prior to being removed during potholing activities.

3.03 PLACEMENT OF SUITABLE MATERIAL

A. No fill shall be placed on any part of the levee degrade surface until such areas have been inspected by the Engineer.

B. Place suitable material visibly free of lenses, pockets, streaks, segregation, and layers of materials differing substantially in texture or gradation from the surrounding material. Take special care to break down large lumps of high plasticity clay and uniformly blend with surrounding soil. Blend materials at an approved processing area.

02300-7a G-24 (Addn. No. 2, Pg. 9)

C. Place suitable material in approximate uniform horizontal layers not to exceed 8 inches loose thickness, without producing segregation, and compact as specified.

D. The percent compaction of each layer of Compacted Levee Embankment shall not be less than 95 percent per ADTM D698.

E. For all roads finished with aggregate base, including but not limited to levee crown road, the percent compaction of the upper 12 inches of subgrade shall not be less than 97 percent per ASTM D698.

F. At the time of placement, the suitable material shall be within minus 1 percent and plus 3 percent of optimum water content, unless otherwise approved by the Engineer. Maintain the required moisture content uniformly throughout each lift of material to be compacted. Compaction by jetting or ponding will not be allowed.

G. Placement Against Slopes: Surfaces 6H to 1V and steeper against which Embankment Material is to be placed shall be cut vertically to a

Reinforced Concrete Pipe

02616-1 G-24 (Addn. No. 2, Pg. 10)

SECTION 02616

REINFORCED CONCRETE PIPE

PART 1 GENERAL

1.01 DESCRIPTION

A. This section covers the contract item Reinforced Concrete Pipe, 24-inch.

B. This section shall include the procurement, materials, installation and testing of Reinforced Concrete Pipe. The work includes the pipe, connections, fittings, gaskets, sealants, appurtenances, and water testing.

1.02 RELATED SECTIONS

A. Supplementary General Conditions, General Conditions, Division 1 sections, and Drawings apply to this section. This section may require direct correlation with the following sections of the contract:

1. Section 02220 – Selective Demolition.

2. Section 02240 – Dewatering.

3. Section 02300 – Earthwork.

4. Section 03300 – Cast-in-Place Concrete.

5. Section 05000 – Materials and Workmanship.

6. Section 05500 – Miscellaneous Metalwork.

7. Section 07920 – Sealants.

8. Section 11281 – Cast Iron Slide Gates.

1.03 REFERENCES

A. The following publications form a part of this specification to the extent referenced. Application of these publications shall conform to Document 00702 – Interpretation of the Contract, Paragraph 2:

1. American Society for Testing and Materials (ASTM):

a. ASTM A 185 – Standard Specification for Steel Welded Wire Fabric, Plain, for Concrete Reinforcement.

b. ASTM C 76 – Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe.

02616-2 G-24 (Addn. No. 2, Pg. 11)

c. ASTM C 141 – Standard Specification for Hydrated Hydraulic Lime for Structural Purposes.

d. ASTM C 260 – Standard Specification for Air-Entraining Admixtures for Concrete.

e. ASTM C 332 – Standard Specification for Lightweight Aggregates for Insulating Concrete.

f. ASTM C 443 – Standard Specification for Joints for Concrete Pipe and Manhole, Using Rubber Gaskets.

g. ASTM C 1330 – Standard Specification for Cylindrical Sealant Backing for Use with Cold Liquid-Applied Sealants.

1.04 SUBMITTALS

A. Submit the following:

1. Fabrication and installation sequence for the concrete pipe.

2. Fabrication details including sections, dimensions, and reinforcing steel.

3. Dimensional details of the bell and spigot joint rings and rubber gasket.

4. Manufacturer’s data for the rubber gasket.

5. Plan for hydrostatic testing of installed pipe.

1.05 DELIVERY, STORAGE, AND HANDLING

A. Completed Pipe Sections:

1. Pipe shall be handled carefully with belt slings or other approved devices. Pipe sections shall be handled with a two-point pickup.

The pickup points shall be located between 1/5 and 1/4 of the pipe section length from each end of the pipe section. The handling devices shall be constructed so that no metal bears against the pipe surfaces and so that the bearing is uniform. The width of belt slings or other approved handling devices shall be adequate to prevent damage to the pipe. The pipe shall at no time be allowed to drop, but shall be lowered carefully into position.

2. Pipe shall be loaded and secured carefully to avoid damage to pipe ends during shipment.

3. During transport, each pipe section shall rest on saddles shaped to the outside diameter of the pipe and located between 1/5 and 1/4 of the pipe section length from the ends of the pipe section. The

02616-6 G-24 (Addn. No. 2, Pg. 12)

B. The Contractor shall test the completed pipe to be watertight before backfilling operations are completed. The Contractor shall provide bulkheads, piping, valves, pumps, and other facilities required to test the pipe and to dewater the pipe after the tests are completed.

C. Prior to testing, the pipeline shall be filled with water and allowed to stand for 24 hours to saturate the lining. During this period the amount of water required to be added to maintain the water surface at the designated test elevation for 24 hour period.

D. Defects in the pipeline piping shall be repaired and the test repeated until no defects are found.

E. Testing shall be performed by the Contractor and witnessed by the Engineer at least 10 minutes with no cracking observed, and no measurable leakage shall develop during the test period at a sustained pressure equal to 120 percent of the test elevation. The test elevation is different elevation between the levee crown elevation and the lowest pipe invert elevation.

3.04 REPAIR

A. Manufactured units which are found to be imperfect during the manufacturing process or damaged during handling and transporting shall be repaired at no additional cost to the Department. Repaired units will be acceptable if, in the opinion of the Engineer, the repaired units conform to these specifications.

PART 4 MEASUREMENT AND PAYMENT

4.01 MEASUREMENT

A. Measurement for payment for the contract item Reinforced Concrete Pipe, 24-Inch will be by the linear foot and will be the number of linear feet placed in the work.

4.02 PAYMENT

A. The contract price will be paid for REINFORCED CONCRETE PIPE, 24-INCH; which price shall include full compensation for all costs incurred under this section.

END OF SECTION

Sealants

07920-1

SECTION 07920

SEALANTS

PART 1 GENERAL

1.01 DESCRIPTION

A. This section covers the procurement, materials and placement of sealant around Reinforced Concrete Pipe at concrete wall.

B. Sealants shall be paid under contract item Reinforced Concrete Pipe, 24-inch.

C. ****

1.02 RELATED SECTIONS

A. Supplementary General Conditions, General Conditions, Division 1 sections, and Drawings apply to this section. This section may require direct correlation with the following sections of the contract:

1. Section 02616 – Reinforced Concrete Pipe.

2. Section 03300 – Cast-in-Place Concrete.

1.03 REFERENCES

A. The following publications form a part of this specification to the extent referenced. Application of these publications shall conform to Document 00702 – Interpretation of the Contract, Paragraph 2:

1. American Society for Testing Materials (ASTM).

a. ASTM C 920 – Standard Specification for Elastomeric Joint Sealants.

1.04 SUBMITTALS

A. Submit the following in accordance with Section 01330 – Submittals:

1. Sealant Data:

a. Certification that sealant material complies with specified requirements. When no specified sealant material is called for, (Addn. No. 2, Pg. 13)

Sealants

07920-2 manufacturer shall state that sealant material and installation procedure proposed are manufacturer’s recommendation for accomplishing best results for each condition considering joint size, shape, and exposure to weather, wear, and abuse.

b. Manufacturer’s Technical Data Guides and application procedures for primers and sealant.

c. Guarantee and Warranty.

d. Provide Material Safety Data Sheets for each product.

1.05 DELIVERY, STORAGE, AND HANDLING

A. Deliver products in original factory packaging bearing identification of product, manufacturer, and batch number.

B. Store products in a location protected from freezing, damage, construction activity, precipitation, and direct sunlight in strict accordance with manufacturer’s recommendations.

C. Condition products to approximately 60 to 70 degrees F for use in accordance with manufacturer’s recommendations.

D. Handle the products with appropriate precautions and care as stated on Material Safety Data Sheet.

1.06 PROJECT CONDITIONS

A. Do not use products under conditions of precipitation or freezing weather. Use appropriate measures for protection and supplementary heating to ensure proper curing conditions in accordance with manufacturer’s recommendations if application during inclement weather occurs.

B. Ensure substrate is dry.

PART 2 PRODUCTS

2.01 SEALANT

A. Sealant product shall comply with ASTM C 920.

2.02 PRIMERS

A. Primers shall be as recommended and furnished by sealant manufacturers for each material and condition.

(Addn. No. 2, Pg. 14)

Cast Iron Slide Gates

11281-1 G-24

SECTION 11281

CAST IRON SLIDE GATES

PART 1 GENERAL

1.01 DESCRIPTION

A. This section specifies the requirements for the following contract items:

1. Cast Iron Slide Gates

2. Cast Iron Slide Gate Special Tools and Spare Parts.

B. Cast Iron Slide Gates shall include furnishing, installing and testing 30-inch slide gates, thimbles, anchor bolts and appurtenances. The gate shall be equipped with stems, pedestals, stem couplings, stem guides, stem covers, anchors, and other appurtenances necessary to make a complete system.

C. Cast Iron Slide Gate Special Tools and Spare Parts includes furnishing and delivering a set of special tools and spare parts for slide gate assembly to the work site.

1.02 RELATED SECTIONS

A. General Conditions, Supplementary General Conditions, Division 1 sections, and Drawings apply to this section. This section may require direct correlation with the following sections of the contract:

1. Section 03300 – Cast-in-Place Concrete.

2. Section 05000 – Materials and Workmanship.

3. Section 05500 – Miscellaneous Metalwork.

4. Section 09970 – Coatings.

1.03 REFERENCES

A. The following publications form a part of this specification to the extent referenced. Application of these publications shall conform to Document 00702 – Interpretation of the Contract, Paragraph 2:

1. American National Standards Institute (ANSI).

2. American Society of Mechanical Engineers (ASME).

(Addn. No. 2, Pg. 15)

11281-2 G-24

3. American Society for Testing and Materials (ASTM):

a. ASTM A 36 – Standard Specification for Carbon Structural Steel.

b. ASTM A 126 – Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings.

c. ASTM A 276 – Specification for Stainless Steel Bars and Shapes.

d. ASTM A 307 – Specification for Carbon Steel Bolts and Studs, 60,000 PSI Tensile Strength.

e. ASTM A 582 – Standard Specification for Free-Machining Stainless Steel Bars.

f. ASTM B 98 – Standard Specification for Copper-Silicon Alloy Bar, Rod, and Shapes.

g. ASTM B 139 – Standard Specification for Phosphor Bronze Rod, Bar, and Shapes.

h. ASTM B 505 – Standard Specification for Copper-Base Alloy Continuous Castings.

i. ASTM B 584 – Standard Specification for Copper Alloy Sand Castings, for General Applications.

4. American Water Works Association (AWWA):

a. AWWA C560 – Cast-Iron Slide Gates.

5. American Welding Society (AWS).

6. International Organization for Standardization (ISO).

1.04 SUBMITTALS

A. Submit the following:

1. Product technical data

a. Gate part list and data sheet.

b. Material list and specifications.

c. Installation instructions.

(Addn. No. 2, Pg. 16)

11281-3 G-24

d. Material Safety Data Sheet (MSDS).

e. Location and type of protective coatings.

f. Operation and maintenance manuals.

g. Manufacturer warranty.

h. Drawings showing the general arrangements and principal dimensions necessary for the gates.

i. Drawings showing clearances necessary for installation, assembly and dismantling of equipment.

j. Drawings showing the location, size, and type of anchors.

k. Drawings showing the location, dimensions, and load bearing capacity required for supports anchored to concrete.

l. Anchor calculations showing that the anchors can withstand the maximum thrust of the actuator, weight loads, and seismic loads, simultaneously, in accordance with the seismic criteria specified.

m. The operating force of the slide gate as required by the gate manufacturer. The required data is as follows:

1) Break out load in pound force.

2) Reseat load in pound force.

3) Running load in pound force.

4) Maximum stem load in pound force.

n. Lubricating instructions.

o. Nameplates and nameplate engraving schedule.

p. A complete list of special tools and spare parts to be furnished, handling devices and templates.

q. Data on antiseizing compound for stainless steel bolts.

r. If embedded anchors are used, a template shall be furnished for each set of anchors to be embedded.

s. Shipping, handling, and storage instructions.

(Addn. No. 2, Pg. 17)

11281-4 G-24

2. Test Procedures for Field Test:

a. General description of tests to be performed.

b. Gate opening and closing tests.

3. Certificates and Test Reports:

a. The slide gate manufacturer shall furnish certified statement that the product meets AWWA C560 requirements. Certification shall be submitted, to the Engineer, within 30 days after testing, and prior to the shipment of the slide gate assemblies.

1.05 STORAGE, HANDLING AND SHIPMENT

A. Slide gate assembly shall be shipped in accordance with AWWA C560 and manufacturer’s recommendations.

1.06 WARRANTY

A. The slide gate and assembly shall warrant defects in workmanship and materials for a period of at least five years.

1.07 SPECIAL TOOLS AND SPARE PARTS

A. Special Tools:

1. The Contractor shall furnish special tools and wrenches of unusual pattern or size, which are necessary for assembly and disassembly of the slide gate. The wrenches and tools shall be furnished in a lockable type toolbox and each piece shall be identified.

2. Handling devices shall identify the parts of the slide gate assembly to be handled.

B. Spare Parts:

1. Spare parts furnished under this section shall be interchangeable with and be made of the same material as the corresponding part to be replaced. Spare parts shall be boxed and protected against deterioration in storage. Spare parts shall be packed separately by size. Each box of spare parts shall be clearly marked on four sides with complete identification of contents.

2. Supply one set of bushing, wedge, and wedge blocks for the slide gate, unless these items are not used in the slide gate.

3. One set of seals for the slide gate.

(Addn. No. 2, Pg. 18)

11281-5 G-24

PART 2 PRODUCTS

2.01 MANUFACTURERS

A. The Cast Iron Slide Gate shall be 30-inch Non-self contained slide gate.

B. Cast Iron Slide Gate shall be one of the following:

1. Series A – 101 Cast Iron Flat Back Frame Slide Gate as manufactured by Rodney Hunt Company.

2. Model C-20 Cast Iron Slide Gate as manufactured by Waterman.

3. Or equal.

2.02 MATERIALS

A. Materials for the slide gate shall conform to the following:

1. Slide gates shall conform to AWWA C560, unless otherwise specified.

2. Material specifications are ASTM specifications unless otherwise specified.

Item Material Specifications

Wedge B584, C87300

Thimble, frame, guide rail, slide, stem guides, and gear housing

ASTM A126, lass B or C; or ASTM A48, class

Pedestal ASTM A 240 or ASTM A 276, types 304L or 316L.

Stem couplings A 582, Type 303; A 276, Type 304 or 316

Thrust nut B 584, C 87300; B 505, C 95800

Seating faces B 98, C 65100 or C 65500; B 139, C 51000;

B 584, C 87300; A 276, Type 302 or 304

Guide liner and slide tongue cap B 98, C 65100 or C 65500; B 139, C 51000;

B 505, C 95800; B 584, C 87300

Stem guide bushing B 98, Alloy C65100 or C65500;

B 139, C 51000; B 584, C 87300

Anchor support A 36

Anchor bolts and nuts for actuator support

F 593 or F 594, alloy group 1 or group 2

(Addn. No. 2, Pg. 19)

11281-6 G-24

2.03 DESIGN REQUIREMENTS

Slide Gates:

1. Slide gate assembly shall be designed, manufactured, and tested in accordance with the AWWA, ANSI and ASME standards, as specified.

2. The slide gate assembly shall be designed, manufactured, and tested in accordance with AWWA C560, unless otherwise specified.

3. Slide Gate Assemblies:

a. Each slide gate shall consist of a gate slide, gate guides, gate frame, wedging devices, stem and stem extensions, stem couplings, stem guides, anchor bolts, and lubricating guns with lubricating grease.

b. The slide gate will be used primarily in partially open positions for throttling flow. It shall be positioned and mounted as shown.

The slide gate shall be a rising stem cast iron slide gate with wedges on the sides.

c. The gate frame shall have a flange for bolt attachment to a thimble as shown.

4. Seismic Criteria:

The slide gate and its anchorage support shall be designed and constructed to resist the effects of seismic loads. The Contractor shall submit seismic load calculations in compliance with the current effective version of the California Building Code (CBC) to the Department for approval. The calculations shall be stamped and signed by a California registered Civil Engineer.

2.04 DESIGN DETAILS

A. General:

1. Design Pressures and Operating Conditions:

a. The design of the slide gate shall conform to AWWA C560, except as otherwise shown or specified. The slide gate shall be installed at the location shown. The slide gate shall be structurally designed to operate under an unbalanced head.

b. Screws used to secure inserts and liners shall be locked by a nylon pellet on the thread or other approved locking device.

(Addn. No. 2, Pg. 20)

11281-7 G-24

c. The slide gate assemblies shall conform to the following schedule:

CAST IRON SLIDE GATE SCHEDULE

Gate Type 30” Slide Gates

Gate Function Flow Control

Gate Width (inch) 30

Gate Height (inch) 30

Type of Closure Conventional

Design Head, Seating (feet) 20

Design Head, Unseating (feet) 5

Maximum Head, Seating, (feet) during Actuation

Maximum Head, Unseating, (feet) during Actuation

Gate Mounting Type Surface

Operation Frequency Daily

Manual Type Hand Wheel Operated or Geared Crank Type

NOTES TO ABOVE TABLE:

The specified head is measured to the centerline of the gate.

2.05 NAMEPLATES

A. The slide gate shall be identified by an equipment nameplate. The nameplate shall be attached to the equipment by means of screws or rivets.

2.06 COATINGS

A. Slide gate and appurtenances shall be per AWWA C560.

B. No coating shall be required for stainless steel parts.

PART 3 EXECUTION

3.01 FIELD ERECTION AND TESTS

A. The Contractor shall provide the services for installation, inspection, start-up assistance and testing of the slide gate assembly.

(Addn. No. 2, Pg. 21)

11281-8 G-24

B. Parts shall be secured in place with anchor bolts to prevent movement during grouting and shall be checked for true plumb prior to and during grouting. Parts shall be fitted to preclude scraping, binding, vibration, displacements or other evidence of misalignment. The gate, gate guides, stem, and stem guides shall be in place and adjusted before grouting.

C. After installation, the gate shall be operated through not less than five complete cycles of opening and closing, with gate operation stopped and started at three intermediate positions in each direction of travel.

Evidence of improper fit, misalignment, galling, overheating or other defects will be considered defective work.

PART 4 MEASUREMENT AND PAYMENT

4.01 MEASUREMENT

A. Measurement for payment for the contract item Cast Iron Slide Gate will be by the actual count and will be the numbers of each placed in the work.

B. Measurement for payment for the contract item Cast Iron Slide Gate Special Tools and Spare Parts will be by actual count and will be the number of each set furnished to the Department.

4.02 PAYMENT

A. The contract prices will be paid for CAST IRON SLIDE GATE; and

CAST IRON SLIDE GATE SPECIAL TOOLS AND SPARE PARTS;

which prices shall include full compensation for all costs incurred under this section.

END OF SECTION

(Addn. No. 2, Pg. 22)