A22_-_W912EK18R0003-0003.pdf

96514773451368

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The reason for amendment is to modify SECTION 01 33 00 SUBMITTAL REGISTER; SECTION 05 50 14; SECTION 26 29 01; SECTION 31 00 00;

SECTION 33 71 02; and the DRAWINGS.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 16-Feb-2018

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912EK18R0003

X 9B. DATED (SEE ITEM 11)

12-Jan-2018

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

16-Feb-2018

CODE

CONTRACTING DIVISION

US ARMY CORPS OF ENGINEERS

1500 ROCK ISLAND DRIVE

ROCK ISLAND IL 61201

W912EK 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912EK18R0003

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

The following items are applicable to this modification:

AMENDMENT 0003

The following modifications are made to SECTION 01 33 00 SUBMITTAL REGISTER; SECTION 05 50 14; SECTION 26 29 01; SECTION 31 00 00; SECTION 33 71 02; and the DRAWINGS.

SECTION 01 33 00

a. SUBMITTAL REGISTER PAGE 1 OF 26 THROUGH PAGE 26 OF 26. Delete the Submittal Register in its entirety, and substitute therefor revised Submittal Register PAGE 1 OF 26 THROUGH PAGE 26 OF 26, Amendment No. 0003, dated 13 February 2018, attached.

SECTION 05 50 14

b. SECTION TABLE OF CONTENTS 05 50 14 PAGE 1. Delete Section Table of Contents 05 50 14 PAGE 1, in its entirety, and substitute therefor revised Section Table of Contents 05 50 14 PAGE 1, Amendment No. 0003, dated 13 February 2018, attached.

c. PAGES 05 50 14-2, 05 50 14-4, and 05 50 14-7. Delete pages 05 50 14-2, 05 50 14-4, and 05 50 14-7, in their entirety, and substitute therefore revised and new pages 05 50 14-2, 05 50 14-2a, 05 50 14-4, 05 50 14-4a, 05 50 14-7, and 05 50 14-7a, Amendment No. 0003, dated 13 February 2018, attached.

SECTION 29 21 01

d. PAGE 29 21 01-4. Delete page 29 21 01-4, in its entirety, and substitute therefor revised page 29 21 01-4, Amendment No. 0003, dated 13 February 2018, attached.

SECTION 31 00 00

e. PAGE 31 00 00-6. Delete page 31 00 00-6, in its entirety, and substitute therefor revised page 31 00 00-6, Amendment No. 0003, dated 13 February 2018, attached.

SECTION 33 71 02

f. PAGES 33 71 02-2 and 33 71 02-8. Delete pages 33 71 02-2 and 33 71 02-8, in their entirety, and substitute therefor revised and new pages 33 71 02-2, 33 71 02-8, and 33 71 02-8a, Amendment No.

0003, dated 13 February 2018, attached.

DRAWING (SUPERSEDED)

g. Revised drawing bearing the revision number and date listed below is being issued with this amendment.

SHEET ID – SA101, MARK 1, Dated 02/12/2018 SHEET ID – SA502, MARK 1, Dated 02/12/2018

ATTACHMENTS: 01 33 00 SUBMITTAL REGISTER; SECTION TABLE OF CONTENTS 05 50

14 PAGE 1; 05 50 14-2, 05 50 14-2a, 05 50 14-4, 05 50 14-4a, 05 50 14-7, and 05 50 14-7a; 29 21 01-4;

31 11 00-6; SA101, and SA502.

SUBMITTAL FORM,Jan 96 PREVIOUS EDITION IS OBSOLETE PAGE 1 OF 1 PAGES

33 71 02 SD-02 Shop Drawings

1.3.1 GPrecast Underground Structures

3.3.5.1 GDuct Bank Cable Schedule

SD-06 Test Reports

3.8.1 GField Acceptance Checks and

Tests

SUBMITTAL REGISTER

CONTRACT NO.

TITLE AND LOCATION CONTRACTOR

CONTRACTOR:

SCHEDULE DATES

CONTRACTOR

ACTION

APPROVING AUTHORITY

A C T I V I T Y

N O

T R A N S M I T T A L

N O

S P E C

S E C T

DESCRIPTION

ITEM SUBMITTED

P A R A G R A P H

C L A S S I F I C A T I O N

G O V T

O R

A E

R E V W

R SUBMIT

APPROVAL

NEEDED

BY

MATERIAL

NEEDED

BY

A C T I O N

C O D E

DATE

OF

ACTION

DATE FWD

TO APPR

AUTH/

DATE RCD

FROM

CONTR

DATE FWD

TO OTHER

REVIEWER

DATE RCD

FROM OTH

REVIEWER

A C T I O N

C O D E

DATE

OF

ACTION

MAILED

TO

CONTR/

DATE RCD

FRM APPR

AUTH REMARKS

(a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m) (n) (o) (p) (q) (r)

SECTION TABLE OF CONTENTS

DIVISION 05 - METALS

SECTION 05 50 14

STRUCTURAL METAL FABRICATIONS

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 QUALIFICATIONS OF WELDERS

1.4 DELIVERY, STORAGE, AND PROTECTION

PART 2 PRODUCTS

2.1 MISCELLANEOUS METALS AND STANDARD METAL ARTICLES

2.1.1 Structural Steel

2.1.2 Structural Steel Tubing

2.1.3 Steel Pipes

2.1.3.1 Pipes

2.1.3.2 Corrosion-Resistant Steel Fasteners

2.1.3.3 High-Strength Bolts, Nuts, and Washers

2.1.3.4 Fittings for Steel Pipe

2.1.4 Steel Studs

2.1.5 Stainless Steel

2.1.5.1 Plate, Sheet, and Strip

2.1.5.2 Bars and Shapes

2.1.6 Aluminum

2.1.6.1 Sheets and Plates

2.1.6.2 Pipes and Tubes

2.1.6.3 Aluminum Alloy Products

2.1.7 Bolts, Nuts, and Washers

2.1.7.1 High-Strength Bolts, Nuts, and Washers

2.1.7.2 Bolts, Nuts, and Washers (Other Than High-Strength)

2.1.7.3 Lag Screws and Bolts

2.1.7.4 Toggle Bolts

2.1.7.5 Powder Actuated Fasteners

2.1.8 Corrosion-Resisting (CRES) Bolts

2.1.8.1 Bolts at Hinges, Including Anchor Bolts

2.1.8.2 All other CRES Bolts

2.1.9 Corrosion-Resisting (CRES) Nuts

2.1.10 Screws

2.1.10.1 Cap Screws

2.1.10.2 Machine Screws

2.1.11 Anchor Bolts

2.1.12 Tie Rods

2.1.13 Post-Installed Reinforcing Bars and Adhesive Anchors

2.1.14 Mechanical Anchors

2.1.15 Wire Rope

2.1.16 Cast Ductile Iron Frames and Covers

2.1.17 Floor Gratings and Walkways

2.1.18 Floor Plates

2.1.19 Manhole Cover And Frame

2.1.20 Miscellaneous Plates And Shapes

SECTION TABLE OF CONTENTS 05 50 14 Page 1

AMEND 0003

13 FEB 2018

ASTM INTERNATIONAL (ASTM)

ASTM A108 (2013) Steel Bar, Carbon and Alloy, Cold-Finished

ASTM A123/A123M (2017) Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A153/A153M (2016a) Zinc Coating (Hot-Dip) on Iron and Steel Hardware

ASTM A193/A193M (2016) Alloy-Steel and Stainless Steel Bolting for High-Temperature or High Pressure Service and Other Special Purpose Applications

ASTM A194/A194M (2017a) Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both

ASTM A240/A240M (2017) Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM A276/A276M (2017) Stainless Steel Bars and Shapes

ASTM A307 (2014; E 2017) Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

ASTM A36/A36M (2014) Carbon Structural Steel

ASTM A467/A467M (2007; R 2012) Machine Coil Chain

ASTM A47/A47M (1999; R 2014) Ferritic Malleable Iron Castings

ASTM A500/A500M (2013) Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

ASTM A53/A53M (2012) Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A536 (1984; R 2014) Ductile Iron Castings

ASTM A572/A572M (2015) High-Strength Low-Alloy Columbium-Vanadium Structural Steel

ASTM A615/A615M (2016) Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement

ASTM A653/A653M (2017) Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

05 50 14-2

ASTM A780/A780M (2009; R 2015) Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

05 50 14-2a

NATIONAL ASSOCIATION OF ARCHITECTURAL METAL MANUFACTURERS (NAAMM)

NAAMM MBG 531 (2009) Metal Bar Grating Manual

NAAMM MBG 532 (2009) Heavy Duty Metal Bar Grating Manual

SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC SP 3 (1982; E 2004) Power Tool Cleaning

SSPC SP 6/NACE No.3 (2007) Commercial Blast Cleaning

U.S. GENERAL SERVICES ADMINISTRATION (GSA)

FS RR-W-410 (2016) Wire Rope and Strand

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Miscellaneous Metal Items; G ECDS

Floor Gratings and Walkways; G ECDS Embedded Angles and Plates; G ECDS Roof Hatch; G, ECDS Live Loading Plaque; G ECDS

Detail drawings indicating material thickness, type, grade, and class; dimensions; and construction details. Drawings shall include catalog cuts, erection details, manufacturer's descriptive data and installation instructions, and templates.

Tie Rod Assembly; G ECDS

Drawings to include steel, fasteners, and corrosion protection.

SD-06 Test Reports

Miscellaneous Metals and Standard Metal Articles; G ECDS Shop Fabricated Metal Items; G ECDS

ICC-ES Evaluation Reports for Post-Installed Reinforcing Bars and Adhesive Anchors; G

ICC-ES Evaluation Reports for Mechanical Anchors; G

Certified test reports for materials tests and analyses shall be submitted for approval as specified and in Section 05 50 13, MISCELLANEOUS METAL FABRICATIONS.

05 50 14-4

1.3 QUALIFICATIONS OF WELDERS

Qualify welders in accordance with AWS D1.1/D1.1M. Use procedures, materials, and equipment of the type required for the work.

05 50 14-4a

2.1.8 Corrosion-Resisting (CRES) Bolts

2.1.8.1 Bolts at Hinges, Including Anchor Bolts

Provide in accordance with ASTM A193/A193M, Class 1C, B8R or B8RA.

2.1.8.2 All other CRES Bolts

Provide in accordance with ASTM A193/A193M, Class 1A, Grade B8A.

2.1.9 Corrosion-Resisting (CRES) Nuts

Provide in accordance with ASTM A194/A194M, Grade 8FA, Type 303.

2.1.10 Screws

Provide material, grade, type, style, and finish indicated or best suited for use intended.

2.1.10.1 Cap Screws

Provide in accordance with ASME B18.2.1, ASME B18.3, or ASME B18.6.2 as required.

2.1.10.2 Machine Screws

Provide in accordance with ASME B18.6.3.

2.1.11 Anchor Bolts

Provide in accordance with ASTM F1554, straight, threaded and nutted.

Provide washers and heavy hexagon heads and nuts. Provide double nuts for anchor bolts used for installation of machines and other equipment subject to vibration. Galvanize finish unless specified otherwise.

2.1.12 Tie Rods

Provide in accordance with ASTM A572/A572M, Grade 50, straight threaded, and nutted. Provide washers and heavy hexagonal nuts. Provide corrosion protection for the entire tie rod assembly and which includes anchorage covers and PVC pipe sleeve large enough to encase each tie rod. Filled pipe with a corrosion inhibiting compound.

2.1.13 Post-Installed Reinforcing Bars and Adhesive Anchors

Anchor reinforcing bars and threaded rods in existing concrete and grout-filled masonry with 2-component injectable adhesive.

a. Provide adhesive in containers which keep Component A and Component B separate and designed to accept static mixing nozzle which thoroughly blends Component A and Component B and allows injection directly into drilled hole.

05 50 14-7

b. Anchor rod system to have ICC approval for use in cracked concrete and for seismic conditions and passed mandatory creep tests requirements in accordance with AC 308. Anchors in masonry to have ICC approval for seismic conditions and passed mandatory creep tests requirements in accordance with AC 58.

c. Threaded rod type to be all-threaded, in accordance with ASTM A36/A36M, galvanized, unless indicated otherwise. High-strength rods in accordance with ASTM A193/A193M, Grade B7, galvanized. Stainless steel rods in accordance with ASTM F593, alloy 304.

d. Reinforcing bars in accordance with ASTM A615/A615M, Grade 60.

05 50 14-7a

PART 2 PRODUCTS

2.1 NAMEPLATES

Include rated voltage, rated full-load amperes, rated horsepower, service factor, number of phases, RPM at rated load, frequency, code letter, locked-rotor amperes, duty rating, insulation system designation, and maximum ambient design temperature on nameplates.

2.2 MOTORS

Supply motors of the vertical shaft type as required by the pump manufacturer, normal or low starting torque, low starting current, squirrel-cage induction type, designed to be controlled by variable frequency drive, either WP-1 or WP-2 enclosure, with moisture resistant windings, and in accordance with NEMA MG 1, except as specified.

a. Submit equipment foundation dimensions; outline drawings with weights, nameplate data, and details showing method of mounting and anchoring the motor for approval prior to the commencement of manufacture of motors.

b. Complete descriptive specifications of each type and size motor provided, with necessary cuts, photographs, and drawings to clearly indicate the construction of the motor, the materials and treatments used to prevent corrosion of parts, bearing construction, and type of insulation used on all windings.

c. Submittal includes all information required for selection of protective and control equipment and for operational setting, such as, but not limited to, normal and maximum operation temperature for windings and bearings, overload trip setting for motor at pump maximum head condition and starting times for starting at rated and 90 percent starter voltage.

2.2.1 Rating

Each motor to be wound for 3-phase, 60-Hz, alternating current, and for an operating voltage of 480 volts.

Design motor for operation in a 105 degrees Fambient temperature and all temperature rises above this ambient temperature. The rated horsepower of the motor not to be less than 110 percent of the determined maximum load requirement of the pump. Motors shall have a service factor of 1.0 or applied using a service factor of 1.0 if standard service factor is greater than 1.0. The temperature rise above the ambient temperature for continuous rated full-load conditions and for the class of insulation used not to exceed the values in accordance with NEMA MG 1.

2.2.2 Operating Characteristics

2.2.2.1 Torques

Starting torque, sufficient to start the pump to which the motor, will be connected under the maximum conditions specified, but in no case will the starting torque be less than 60 percent of full-load torque. Breakdown torque not to be less than 200 percent of full-load torque.

26 29 01-4

AMEND 0001

3.2.3 Dewatering

Control surface and ground water flowing toward or into excavations to prevent sloughing of excavation slopes and walls, boils, uplift and heave in the excavation and to eliminate interference with orderly progress of construction. Do not permit French drains, sumps, ditches or trenches within 3 feet of the foundation of any structure, except with specific written approval, and after specific contractual provisions for restoration of the foundation area have been made. Take control measures by the time the excavation reaches the water level in order to maintain the integrity of the in situ material. Jetting is prohibited for installation of the dewatering system.

Dewatering of the area enclosed between sheet piles for the retaining wall west of the new pump station and the embankment in accordance with paragraph "SITE FILL BELOW ELEVATION 837."

3.2.4 Trench Excavation

Excavate the trench as recommended by the pipe manufacturer. Excavate trenches to a stable condition in accordance with EM 385-1-1 requirements, the subsurface conditions in the excavation, and other applicable conditions. Properly slope, shore, or otherwise stabilize all trenches prior to entry by any personnel. Give special attention to slopes which may be adversely affected by weather or moisture content. Do not exceed the trench width below the pipe top of 48 inches plus pipe outside diameter.

Where recommended trench widths are exceeded, provide redesign, stronger pipe, or special installation procedures. The redesign, stronger pipe, or special installation procedures without any additional cost to the Government.

3.2.4.1 Bottom Preparation

Grade the bottoms of trenches accurately to provide uniform bearing and support for the bottom quadrant of each section of the pipe. Excavate bell holes to the necessary size at each joint or coupling to eliminate point bearing. Remove stones of 3 inches or greater in any dimension, or as recommended by the pipe manufacturer, whichever is smaller, to avoid point bearing.

3.2.4.2 Removal of Unyielding Material

Where unyielding material is encountered in the bottom of the trench, remove such material 9 inches below the required grade and replace with suitable materials in accordance with paragraph "BACKFILLING AND

COMPACTION."

3.2.4.3 Removal of Unstable Material

Where unstable material is encountered in the bottom of the trench, remove such material to the depth directed and replace to the proper grade with select granular material in accordance with paragraph "BACKFILLING AND COMPACTION." When removal of unstable material is required due to the Contractor's fault or neglect in performing the work, the Contractor is responsible for excavating the resulting material and replacing without additional cost to the Government.

31 00 00-6

AMEND 0003

13 FEB 2018

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2017) National Electrical Code

TELECOMMUNICATIONS INDUSTRY ASSOCIATION (TIA)

TIA-758 (2012b) Customer-Owned Outside Plant Telecommunications Infrastructure Standard

U.S. DEPARTMENT OF AGRICULTURE (USDA)

RUS Bull 1751F-644 (Most Current) Underground Plant Construction

UNDERWRITERS LABORATORIES (UL)

UL 44 (2014; R Feb 2015) Thermoset-Insulated Wires and Cables

UL 467 (2017; R Jun 17) Grounding and Bonding Equipment

UL 486A-486B (2013; R Jan 2016) Wire Connectors

UL 510 (2017) Polyvinyl Chloride, Polyethylene and Rubber Insulating Tape

UL 514B (2012; R Nov 2014) Conduit, Tubing and Cable Fittings

UL 6 (2007; R Nov 2014) Electrical Rigid Metal Conduit-Steel

UL 651 (2011; R Jun 2016) Schedule 40 and 80 Rigid PVC Conduit and Fittings

UL 83 (2017) Thermoplastic-Insulated Wires and Cables

UL 854 (2004; R Nov 2014) Service-Entrance Cables

UL 94 (2013; R Sep 2017) Tests for Flammability of Plastic Materials for Parts in Devices and Appliances

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Precast Underground Structures; G Duct Bank Cable Schedule; G

33 71 02-2

3.3.4 Conduit and Duct Without Concrete Encasement

Depths to top of the conduit to be not less than 24 inches below finished grade. Provide not less than 3 inches clearance from the conduit to each side of the trench. Grade bottom of trench smooth; where rock, soft spots, or sharp-edged materials are encountered, excavate the bottom for an additional 3 inches, fill and tamp level with original bottom with sand or earth free from particles, that would be retained on a 1/4 inch sieve. The first 6 inch layer of backfill cover to be sand compacted as previously specified. The rest of the excavation to be backfilled and compacted in 3 to 6 inch layers. Provide color, type and depth of warning tape as specified in Section 31 00 00 EARTHWORK.

3.3.4.1 Encasement Under Roads and Structures

Under roads and paved areas, install conduits in concrete encasement of rectangular cross-section providing a minimum of 3 inch concrete cover around ducts. Concrete encasement to extend at least 5 feet beyond the edges of paved areas and roads. Depths to top of the concrete envelope to be not less than 24 inches below finished grade.

3.3.5 Duct Encased in Concrete

Construct underground duct lines of individual conduits encased in concrete. Depths to top of the concrete envelope to be not less than 24 inches below finished grade. Do not mix different kinds of conduit in any one duct bank. Concrete encasement surrounding the bank to be rectangular in cross-section and to provide at least 3 inches of concrete cover for ducts. Separate conduits by a minimum concrete thickness of 3 inches.

Before pouring concrete, anchor duct bank assemblies to prevent the assemblies from floating during concrete pouring. Anchoring to be done by driving reinforcing rods adjacent to duct spacer assemblies and attaching the rods to the spacer assembly. Provide color, type and depth of warning tape as specified in Section 31 00 00 EARTHWORK

3.3.5.1 Partially Completed Duct Banks

Prior to installation, provide duct bank cable schedule and cross-section details identifying each proposed duct bank size, duct location, and each intended electrical cable locations identified by Cable Identification Number.

During construction wherever a construction joint is necessary in a duct bank, prevent debris such as mud, and, and dirt from entering ducts by providing suitable conduit plugs. Fit concrete envelope of a partially completed duct bank with reinforcing steel extending a minimum of 2 feet back into the envelope and a minimum of 2 feet beyond the end of the envelope. Provide one No. 4 bar in each corner, 3 inches from the edge of the envelope. Secure corner bars with two No. 3 ties, spaced approximately one foot apart. Restrain reinforcing assembly from moving during concrete pouring.

33 71 02-8

3.3.6 Duct Sealing

Seal all electrical penetrations for radon mitigation, maintaining integrity of the vapor barrier, and to prevent infiltration of air, insects, and vermin.

33 71 02-8a