Specs-UNA013597B-AM0001.pdf

AM0001 CARL E. MOSES HARBOR FLOATING BREAKWATER UNA013597B

UNALASKA, ALASKA

SD-06 Test Reports

Concrete Anchor Block Location Survey; G

See Section 03 31 29, Marine Concrete, for concrete anchor block location survey requirements.

As Specified for Location of Navigation Marker Bases

See Sheet S3.06 for location survey requirements for the navigation marker bases.

SD-11 Closeout Submittals

Post-Construction Survey; G

1.4 ACCIDENT PREVENTION PLAN

The Contractor shall obtain the Contracting Officer's approval of the Accident Prevention Plan required by EM 385-1-1 prior to start of any work at the project site.

1.4.1 Navigation Safety and Coordination Plan

The Contractor shall submit a Navigation Safety and Coordination Plan as part of the Accident Prevention Plan. This plan shall include but not be limited to temporary lights at night and/or marker buoys during construction, "Notice to Mariners" and coordination with local officials, and reference to applicable U.S. Coast Guard regulations for construction vessels as well as SECTION 19, Floating Plant and Marine Activities, of

EM 385-1-1.

1.5 FIRE SAFETY

The Contractor shall obtain a permit from the organization having jurisdiction over the job site for any welding or open flame work.

1.6 DISPOSITION OF MATERIALS

Combustible and noncombustible waste material shall be disposed of off-site. No burning will be permitted.

1.6.1 Salvageable Material

Salvageable material, if not otherwise indicated, shall become the property of the Contractor. The value of such salvage shall be reflected in the contract price.

1.7 TESTS

The Contractor shall provide testing, except where specifically noted to be performed by the Government, in accordance with SECTION 01 45 04.00 29

CONTRACTOR QUALITY CONTROL.

1.8 WARRANTY OF CONSTRUCTION

a. In addition to any other warranties in this contract, the Contractor warrants, except as provided in subparagraph "i" herein, that the work performed under this contract conforms to the contract requirements

SECTION 01 19 40.00 29 Page 3 a 750 kilonewton load applied over any area equal to the width of the breakwater by an equal length of the breakwater. This load need not be taken within one unit of width from the end of the breakwater.

1.3.7 Transient Moorage Provisions

The floating breakwater shall be provided with rub strips or fenders, and bull rails. Materials for these items shall be suitable for the marine environment and shall allow for transient moorage along the full perimeter of the floating breakwater, with the exception that bull rails shall not be provided along the southern 30 meters of the east floating breakwater.

Bull rail connections shall be designed for ductile failure outside the concrete of the floating breakwater.

1.3.8 Floating Breakwater Moorage Requirements

The design of the floating breakwater shall accomodate catenary moorage lines. Moorage lines shall maintain a minimum depth of -6.1 meters MLLW within the entrance channel and maneuvering areas shown for all specified loading conditions, except that within 3 meters horizontal distance of the north floating breakwater the mooorage lines may be as shallow as -3.0 meters under lateral loads specified. This exception does not apply to the no-load depth of the moorage lines adjacent to the north floating breakwater. Breakwater deflection from the no-load condition shall not exceed 3.5 meters under the lateral loads specified. See Section 03 31 29, MARINE CONCRETE, regarding soil conditions in the project area.

1.3.9 Future Harbor Expansion

Provision shall be made for extending the east floating breakwater to the north. This shall include providing all necessary embedments to continue the floating breakwater system, as designed, farther north.

1.4 DESIGN REQUIREMENTS

The floating breakwater material shall be post-tensioned concrete. The configuration shall be such as to provide a minimum width of 6.4 meters and a minimum unladen draft of 1.3 meters. Minimum post-tensioned module length shall be 30 meters. The design drawings and calculations shall be stamped by a registered professional engineer. While it is understood that some designs may be proprietary, full disclosure of all calculations required to fully demonstrate the performance and safety of the floating breakwater for all listed environmental and loading conditions is required. Proprietary information will be protected and will not be made available to the public. Calculations shall be presented in a fully coordinated manner allowing a marine structural engineer reviewer to readily understand and follow the calculations. Calculation packages submitted which require reviewers to perform parallel calculations to produce numbers or generate understanding shall not be considered acceptable.

1.5 QUALITY REQUIREMENTS

The floating breakwater will be placed in service in a harsh marine environment at Unalaska, Alaska. The corrosion typical of marine environments is present as well as a high number of annual freeze-thaw cycles. The materials selected for use in the floating breakwater shall be such as to provide for a minimum 25-year service life with only minor maintenance. Acceptance of alternate designs shall be dependent on

SECTION 01 19 41 Page 4 providing documentation of similar structures, in similar environmental conditions, which have been in service for a time period approaching or exceeding 25-years, with a documented record of low maintenance. Alternate designs shall include a minimum of three references of owners or operators of facitities where similar floating breakwaters, in similar environmental conditions, have been in service for a minimum of 15-years. While it is recognized that alternate designs may incorporate casting the breakwater in shorter module lengths than those shown, increasing numbers of units shall be considered a detriment to long term performance, especially as it concerns maintenance. If mulitiple units are incorporated, the units shall be match-cast to ensure that they may be properly assembled and post-tensioned. If multiple units are incorporated and post-tensioning is not accomplished at the precast concrete plant, the precast plant shall be certified by the PCI Plant Certification Program for Category C1 work for casting of floating breakwater modules. PCI Plant quality control program records shall be available for review. If multiple units are not post-tensioned at the precast concrete plant the assembly/post-tensioning plan shall be included as part of the professional engineer's stamped design drawings and calculations.

PART 2 PRODUCTS

The quality of materials established in the full design provided shall be considered the minimum acceptable standard of quality for materials in alternate designs.

2.1 ConcreteCONCRETE

Concrete for the floating breakwater shall be as specified in SECTION 03 31 29 MARINE CONCRETE. Relaxation of the PCI Plant Certification requirements shall not be acceptable.

2.2 CONCRETE REINFORCEMENT

Reinforcement shall be coated in accordance with: ASTM A 767/A 767M, including compliance with the recommendations of Appendices X1 and X2.

Coating repairs shall be made in accordance with ASTM A 780 zinc rich paint, using power tool cleaning, and to a dry film thickness matching the surrounding coating.

2.3 STRESSING TENDONS AND ACCESSORIES

Concrete post-tensioning strands and accessories shall be as indicated in

SECTION 03 23 00 STEEL STRESSING TENDONS AND ACCESSORIES FOR PRESTRESSED

CONCRETE.

2.4 TIMBER BULLRAILS

If timber is used as the material for the required bullrails, timber bullrails shall meet the requirements of SECTION 06 13 33 PRESERVATIVE

TREATED TIMBERS.

PART 3 EXECUTION - NOT USED

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SECTION 01 19 41 Page 5

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 22 00.00 10

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 LUMP SUM PAYMENT ITEMS

1.1.1 Construct East Floating Breakwater

1.1.1.1 Item 0001: Bid, Performance, and Payment Bond cost and

Mobilization and Demobilization, complete. ARRA Federal Funding 80%

1.1.1.2 Item 0002: Bid, Performance, and Payment Bond cost and

Mobilization and Demobilization, complete. Local Funding 20%

1.1.1.3 Item 0003: Construct East Floating Breakwater, complete. ARRA

Federal Funding 80%

1.1.1.4 Item 0004: Construct East Floating Breakwater, complete.

Local Funding 20%

1.1.1.5 Item 0005: Provide and Install Bull Rail Mount Weldments for

East Floating Breakwater, complete. Local Funding 100%

1.1.2 Construct North Floating Breakwater

1.1.2.1 Item 0006: Construct North Floating Breakwater, complete.

ARRA Federal Funding 80%

1.1.2.2 Item 0007: Construct North Floating Breakwater, complete.

Local Funding 80%

1.1.2.3 Item 0008: Provide and Install Bull Rail Mount Weldments for

North Floating Breakwater, complete. Local Funding 100%

1.1.3 Bull Rails for East Floating Breakwater

1.1.3.1 Item 0009: Provide and Install Bull Rails for East Floating

Breakwater, complete. Local Funding 100%

1.1.4 Bull Rails for North Floating Breakwater

1.1.4.1 Item 0010: Provide and Install Bull Rails for North Floating

Breakwater, complete. Local Funding 100%

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION

3.1 CONTRACT COST BREAKDOWN

-- End of Section Table of Contents --

SECTION 01 22 00.00 10 Page 1

SECTION 01 22 00.00 10

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 LUMP SUM PAYMENT ITEMS

Payment items for the work of this contract for which contract lump sum payments will be made are listed in the PROPOSAL SCHEDULE and described below. All costs for items of work, which are not specifically mentioned to be included in a particular lump sum or unit price payment item, shall be included in the listed lump sum item most closely associated with the work involved. The lump sum price and payment made for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.

1.1.1 Construct East Floating Breakwater

1.1.1.1 Item 0001: Bid, Performance, and Payment Bond cost and Mobilization and Demobilization, complete. ARRA Federal Funding 80%

Payment will be made for costs associated with mobilization and demobilization, as defined in Special Clause PAYMENT FOR MOBILIZATION AND DEMOBILIZATION. This CLIN shall include 80% of the total cost for bid, performance, and payment bond cost and Mobilization and Demobilization.

See CLIN 0002 for the remaining 20%.

1.1.1.2 Item 0002: Bid, Performance, and Payment Bond cost and Mobilization and Demobilization, complete. Local Funding 20%

Payment will be made for costs associated with mobilization and demobilization, as defined in Special Clause PAYMENT FOR MOBILIZATION AND DEMOBILIZATION. This CLIN shall include 20% of the total cost for bid, performance, and payment bond cost and Mobilization and Demobilization.

See CLIN 0001 for the remaining 80%.

1.1.1.3 Item 0003: Construct East Floating Breakwater, complete. ARRA Federal Funding 80%

This work shall include 80% of the production, delivery and installation of the east floating breakwater with the exception of work associated with Item s 0005 and 0006 0005. See CLIN 0004 for the remaining 20%.

1.1.1.4 Item 0004: Construct East Floating Breakwater, complete. Local Funding 20%

This work shall include 20% of the production, delivery and installation of the east floating breakwater with the exception of work associated with Item s 0005 and 0006 0005. See CLIN 0003 for the remaining 80%.

SECTION 01 22 00.00 10 Page 2

1.1.1.5 Item 0005: Provide and Install Bull Rail Mount Weldments for East Floating Breakwater, complete. ARRA Federal Funding 80%Local Funding 100%

This work shall include 80% of the production and installation of the bull rail mount weldments and associated reinforcing steel for the east floating breakwater. See CLIN 0006 for the remaining 20%.

1.1.1.3 Item 0006: Provide and Install Bull Rail Mount Weldments for East Floating Breakwater, complete. Local Funding 20%

This work shall include 20% of the production and installation of the bull rail mount weldments and associated reinforcing steel for the east floating breakwater. See CLIN 0005 for the remaining 80%.

1.1.2 Construct North Floating Breakwater

Items 0006 through 0008 will be exercised concurrently.

1.1.2.1 Item 00070006: Construct North Floating Breakwater, complete.

ARRA Federal Funding 80%

This work shall include 80% of the production, delivery and installation of the north floating breakwater with the exception of work associated with Items 0009 and 0010 0008. See CLIN 00080007 for the remaining 20%.

1.1.2.2 Item 00080007: Construct North Floating Breakwater, complete.

Local Funding 80%20%

This work shall include 20% of the production, delivery and installation of the north floating breakwater with the exception of work associated with Items 0009 and 0010 0008. See CLIN 00070006 for the remaining 80%.

1.1.2.3 Item 00090008: Provide and Install Bull Rail Mount Weldments for North Floating Breakwater, complete. ARRA Federal Funding 80%Local Funding 100%

This work shall include 80% of the production and installation of the bull rail mount weldments and associated reinforcing steel for the north floating breakwater. See CLIN 0010 for the remaining 80%.

1.3.2.2 Item 0010: Provide and Install Bull Rail Mount Weldments for North Floating Breakwater, complete. Local Funding 20%

This work shall include 20% of the production and installation of the bull rail mount weldments and associated reinforcing steel for the north floating breakwater. See CLIN 0009 for the remaining 20%.

1.1.3 Bull Rails for East Floating Breakwater

1.1.3.1 Item 00110009: Provide and Install Bull Rails for East Floating Breakwater, complete. ARRA Federal Funding 80%Local Funding 100%

This work shall include 80% of the production and installation of the bull rails and associated mounting hardware for the east floating breakwater.

See CLIN 0012 for the remaining 20%.

SECTION 01 22 00.00 10 Page 3

1.3.3.1 Item 0012: Provide and Install Bull Rails for East Floating Breakwater, complete. Local Funding 20%

This work shall include 20% of the production and installation of the bull rails and associated mounting hardware for the east floating breakwater.

See CLIN 0011 for the remaining 80%.

1.1.4 Bull Rails for North Floating Breakwater

Exercise of this option is contingent on exercise of option items 0006 through 0008.

1.1.4.1 Item 00130010: Provide and Install Bull Rails for North Floating Breakwater, complete. ARRA Federal Funding 80%Local Funding 100%

This work shall include 80% of the production and installation of the bull rails and associated mounting hardware for the north floating breakwater.

See CLIN 0014 for the remaining 20%.

1.1.4.1 Item 0014: Provide and Install Bull Rails for North Floating Breakwater, complete. Local Funding 20%

This work shall include 20% of the production and installation of the bull rails and associated mounting hardware for the north floating breakwater.

See CLIN 0013 for the remaining 80%.

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION

3.1 CONTRACT COST BREAKDOWN

The Contractor shall furnish within 30 days after the date of Notice to Proceed, and prior to the submission of its first partial payment estimate, a breakdown of its lump-sum pay items which will be reviewed by the Contracting Officer as to propriety of distribution of the total cost to the various accounts.

-- End of Section --

SECTION 01 22 00.00 10 Page 4 mass of cementitious material.

d. Air Content. Concrete shall be air entrained and shall conform to the air limits specified below in Table 3.

e. Slump. The concrete mixture shall be proportioned to have, at the point of deposit, a maximum slump of 4 inches as determined by ASTM C 143/C 143M. Where an ASTM C 494/C 494M, Type F or G admixture is used, the slump after the addition of the admixture shall be no less than 150 mm nor greater than 200 mm. Slump tolerances shall comply with the requirements of ACI 117.

f. Chloride Ion Penetration. Floating breakwater module concrete shall be proportioned such that the chloride ion penetration, when tested in accordance with ASTM C 1202, shall give a result below 1,500 coulombs for concrete specimens tested at 56 days. Alternatively, a ponding test in accordance with AASHTO T 259 may be performed to validate chloride ion penetration in accordance with ASTM C 1202. Concrete for items other than floating breakwater modules shall not require chloride ion penetration testiong.

g. Shrinkage Limits of floating breakwater module Mixture Designs. Drying shrinkage of concrete for mixture design trial batches at 21 days of age shall not exceed 0.04 percent based on the averaged results from three or more specimens constituting a test set; however, the results from any individual specimen from the trial batches which are less than the shrinkage value obtained by subtracting 0.009 percent shrinkage from the average shall be discarded and a new average established.

Test procedures and test specimens shall conform to the following:

The "Drying Shrinkage" specimen shall be fabricated, cured, dried and measured in the manner outlined in ASTM C 157/C 157M and modified as follows:

Specimens shall be removed from molds at an age of 23 hours plus or minus 1 hour after trial batching, shall be placed immediately in lime-saturated water at 23 degrees C plus or minus 0.5 degrees C for at least 30 minutes, and shall be measured within 30 minutes thereafter to determine original length, then submerged in lime-saturated water at 23 degrees C plus or minus 2 degrees C.

Measurement to determine expansion expressed as a percentage of original length shall be made at age 7 days. This length at age 7 days shall be the base length for drying shrinkage calculations. Specimens then shall be stored immediately in a humidity control room maintained at 23 degrees C plus or minus 2 degrees C and 50 percent plus or minus 4 percent relative humidity for the remainder of the test.

Measurement to determine shrinkage as a percentage of base length shall be made and reported separately for concrete age of 7, 14, 21, and 49 days.

2.1.3 Required Average Strength of Concrete

The minimum compressive strength (fcr) of the selected mixture shall equal or exceed the strength required under ACI 301 for laboratory mixture designs and which passes the test indicated in the subparagraph entitled "Chloride Ion Penetration." The average compressive strength produced under field tests shall be the minimum compressive strength (fcr) required

SECTION 03 31 29 Page 17

2.2.5.1 Air Entraining Admixture

Provide air entraining admixtures conforming to ASTM C 260. Provide the admixture of such a type and dosage that the total air content in the hardened concrete can be readily maintained within the limits specified in Table 3.

Table 3 - Air Content

Nominal maximum size of Size Total air content, coarse aggregate, mm Number percent by volume

9.5 8 5-8

12.5 7 4.5-7.5

16.0 - 4-7

19.0 67 3.5-6.5

25.0 57 3.5-6.5

37.5 467 3-6

50.0 357 2.5-5.5

75.0 - 2-5

Air content shall target the center of the range indicated. No additional tolerance on air content shall be acceptable. Air contents indicated have been adjusted to account for specified compressive strength that is greater than 35 MPa and are acceptable for all concrete in this project.

2.2.5.2 Accelerating

ASTM C 494/C 494M, Type C.

2.2.5.3 Retarding

ASTM C 494/C 494M, Type B, D, or G.

2.2.5.4 Water Reducing

ASTM C 494/C 494M, Type A, E, or F.

2.2.5.5 High Range Water Reducer (HRWR)

ASTM C 494/C 494M, Type F and ASTM C 1017/C 1017M.

2.2.5.6 Corrosion Inhibitor Admixture

Corrosion inhibitor shall be 30 percent water solution of calcium nitrite.

Allow for the free water in the admixture within the total water in concrete mixture. Accelerating and set adjusted versions are acceptable, however, the concrete set time effects and mixture workability shall be considered. Refer to admixture manufacturer recommendations for dosage for chloride protection levels.

2.2.6 Materials for Forms

Provide plywood, or steel. Plywood: PS-1, B-B concrete form panels or better. Steel form surfaces shall not contain irregularities, dents, or sags. Comply with the recommendations of ASTM A 767/A 767M, Appendiix X2 regarding electrically isolating galvanized reinforcing bars from uncoated steel or stainless steel formwork.

SECTION 03 31 29 Page 20