SOW-Specs.pdf

UNITED STA

OF THE INTERIOR

FISH , SERVICE

Ml �-�--"' �----..-- .3 lnfrastruct �� . .,. t Division

Station Name/ Address:

Project Name/Number:

5600 ite 990

37-1458

U.S.

FISH & WILDLIFE

SERVICE

BIG MUDDY NATIONAL FISH AND WILDLIFE REFUGES

18500 Brady Lane Boonville, MO 65233-3126

ARROW ROCK FOOT BRIDGE REPAIRS

22-RF-004

PROJECT MANUAL

Page J - 1

PART III, SECTION J

LIST OF DOCUMENTS, EXHIBITS, AND OTHER ATTACHMENTS

INDEX

TECHNICAL PROVISIONS/SPECIFICATIONS

DIVISION 1 - GENERAL REQUIREMENTS

SECTION 01100 SUMMARY OF THE WORK

SECTION 01310 PROJECT COORDINATION

SECTION 01330 SUBMITTALS

SECTION 01420 DEFINITIONS AND STANDARDS

SECTION 01770 PROJECT CLOSEOUT

DIVISION 2 - SITE WORK

SECTION 02110 EROSION CONTROL

SECTION 02200 SITEWORK

SECTION 02230 AGGREGATE

SECTION 02272 POLYPROPYLENE GEOGRID

SECTION 02380 HELICAL ANCHORS

DIVISION 3 – CONCRETE

SECTION 03210 REINFORCING STEEL

SECTION 03300 CONCRETE

DIVISION 4 - NOT USED

DIVISION 6-16 (NOT USED)

ATTACHMENTS

PRE-CONSTRUCTION SAFETY CHECKLIST

DRAWINGS

Drawing Number Description Sheet

3R-MO-1235-121 COVER SHEET, COUNTY/LOCATION MAPS 1 of 4

AND DRAWING INDEX

3R-MO-1235-122 Site Plans 2 of 4

3R-MO-1235-123 Pile Cap Plan and Elevation 3 of 4

3R-MO-1235-124 Reference Photographs 4 of 4

DIVISION 1 SECTION 01100

GENERAL REQUIREMENTS SUMMARY OF THE WORK

01010-1

A. General

1. All applicable Sections of the Federal Acquisition Regulations (FAR) and Division 1 apply to each Section of this Technical Specification (Division 2 through 16).

2. Payment for work done under this contract shall be made in accordance with the lump sum and unit price bid therefore in the Bidding Schedule, and in accordance with subsequent addenda, Change Orders, and/or Extra Work Orders.

B. Work Under This Contract

1. The work in this contract is listed below. Measurement and payment shall include but not be limited to furnishing materials, labor, and equipment for work defined below.

Base Bid

Item 1 – Arrow Rock Foot Bridge Repair. Payment for work under this item includes mobilization and demobilization of a skid steer and a concrete mixing drum, site work, stockpiling of riprap, laying a polypropylene stabilization geogrid and gravel, installing 4 helical anchors, installing formwork and pouring concrete for the repair and construction of 2 reinforced concrete bridge piers, miscellaneous metal welding work, and the replacement of riprap around the new concrete bridge piers, and minor grading seeding and restoration of the site and embankment used for access.

Location And Inspection Of Site

1. The site of the work is located near the Big Muddy Refuge

Arrow Rock site near Genoa, Wisconsin. The mailing address is shown on the Solicitation, Offer, and Award (Standard Form 1442) as attached to this Invitation. The Refuge Manager may be contacted for further information

01010-2 at the above referenced address or by telephone at (660) 672-2801.

2. The contractor, subcontractors, and related persons are encouraged to visit the site of the proposed work and to assess the location and extent of the work prior to submitting a proposal. Persons may inspect the work site by contacting the Refuge Manager.

D. Contract Drawings

1. All information depicted on the contract drawings is based on original "as built" drawings currently on file with the U. S. Fish and Wildlife Service. The Government does not guarantee their accuracy, completeness, or suitability for the intended use and assumes no responsibility for damages resulting from errors and/or omissions in these drawings. All prospective bidders are encouraged to visit the actual sites of the work. The Contractor shall be responsible for determining the location(s) of all affected utilities and structures, and for governing all construction operations in such a manner to avoid damaging existing utilities and structures whenever possible. The Contractor shall be responsible for all damages resulting from construction operations.

2. Drawing Index - Refer to Part III, Section J for index of drawings.

E. Work Not Included In This Contract

Items Not in Contract:

1. All items indicated "N.I.C." on drawings or specifications are items not included in this contract.

2. Work in place and not included as part of this contract is generally shown as "Existing" on the Contract Drawings.

01010-3

3. Work to be performed under other contracts and not included as part of this contract is generally shown as "By Others" on the Contract Drawings.

F. Items Provided By The Government

1. Work to be accomplished by the Government or manufactured items to be provided by the Government are generally shown as "By Government" on the Contract Drawings.

a. Unless specifically provided herein, no materials or equipment shall be furnished by the Government under this Contract.

G. Site Access and Right of Way

1. The construction access limits on Government property will be established by the Government and the Contractor shall be responsible for complying with these limits and governing all work accordingly. All temporary access roads shall be removed following work completion unless directed otherwise by the Contracting Officer.

2. The Contractor shall be responsible for complying with all applicable regulations pertaining to roads, bridges and related items in the project vicinity, as directed by the public agency having jurisdiction. Requirements for maintenance of traffic in a safe manner such as signs, barricades, lights, watchmen, etc., shall be met as required. Load limits and other restrictions shall be obeyed. All bidders are reminded that they are responsible for contacting the local entity such as township, county, state, etc., having jurisdiction in the project vicinity to insure bidders are aware of any requirements of the local entity. These requirements are between the entity and the bidder. If the Contractor proposes to cross private property he shall obtain permission from the owner to use private property or roads in the conduct of the work.

01010-4

3. Work on Saturdays, Sundays, Federal Holidays or at night may be performed only with the prior consent of the Contracting Officer.

H. Site Maintenance - Refer to FAR 52.236-12, Cleaning Up

1. Keep work areas free of accumulation of surplus materials and rubbish resulting from all operations.

a. Remove all rubbish from premises.

b. No burning of rubbish on premises will be allowed.

2. Remove rubbish weekly and additionally as required by the

Contracting Officer. Keep work areas free at all times of unattended combustible rubbish.

Disposal shall be in a legally constituted disposal area.

3. Remove all tools, equipment, and temporary facilities immediately when no longer required for execution of the work.

(END OF SECTION 01100)

DIVISION 1 SECTION 01310

GENERAL REQUIREMENTS PROJECT COORDINATION

01310-1

A. Jobsite Administration - Superintendence, Subcontract administration and Quality Control, is the responsibility of the Contractor.

1. Final decisions relative to items in conflict shall be made by the Contracting Officer.

2. The Government shall have the authority to temporarily suspend the work for such time as necessary because of the failure on the part of the Contractor to perform any of the provisions of the contract, and no extension of contract performance time will be allowed for such suspensions. Resumption of work will not be permitted until the Government determines that the defi-ciencies in performance, which caused the temporary suspension, have been corrected.

3. The Contractor shall notify the Engineer at least ten

(10) days prior to the anticipated date of completion of all work specified herein. Upon completion of the work, the Engineer shall proceed with the final inspection which shall be completed as promptly as practicable.

The time required for such inspection and for performing any corrective work shall be included in the contract performance time.

B. Modification/Change Order procedures

1. In the event of the need for a change order, the Contractor will receive a letter requesting a price quote for proposed changes to the contract.

2. For evaluation purposes, the Contractor's quote shall be broken down to show the costs of labor and materials for each proposed category of work included with the change, along with the total cost for Contractor's overhead, profit, and bond for the proposed changes.

3. All contract time extensions required as a result of a proposed change must be justified and supported in detail at the time of the proposal.

DIVISION 1 SECTION 01310

GENERAL REQUIREMENTS PROJECT COORDINATION

01310-2

C. Preconstruction Conference

1. Soon after award of the Contract and prior to commencing construction, the Contractor and any subcontractors shall attend a preconstruction conference with representatives of the Government. Timely notification of the meeting will be given to the Contractor. Time, date, and place of the conference will be determined by the Contracting Officer. Requirements pertaining to con-tract administration, construction operations and the project schedule will be discussed. The project schedule shall be in accordance with Section 01330.

2. The Preconstruction Safety Checklist must be submitted for review and completion during the Preconstruction Conference.

D. Progress Meetings

1. Periodic general project meetings will be conducted with a representative of the Contractor at the project site or by telephone by the Government's representative for the purpose of coordinating, expediting, and assessing the work progress.

2. The Contractor shall provide reports of progress on the project, discuss the work schedule for the coming period, and present all conflicts, discrepancies or other difficulties for resolution. A record of discussions and decisions will be prepared by the Government and distributed to those attending and others affected.

(END OF SECTION 01310)

DIVISION 1 SECTION 01330

GENERAL REQUIREMENTS SUBMITTALS

01330-1

A. General Refer to submittal register or technical specifications for all submittals required.

When specifically requested by the Government representative, the Contractor shall provide copies of manufacturer's literature containing detailed specifications and performance data or shop drawings fully describing the items and written installation instructions and/or recommendations for review and approval prior to accomplishing equipment installation.

B. Submittal Register:

1. A submittal register, listing all items requiring submittals under this solicitation, is provided as an attachment to this document. The Contractor shall provide all required submittals to the Engineer within 21 days of award except for items noted otherwise on the submittal register.

2. Furnish one electronic copy to the COR of all required submittals for review and approval.

3. The approval of submittals shall not relieve the contractor to comply with the terms and conditions of the contract drawings and specifications. The contractor shall be responsible to determine correct dimension, design, connection, detail and satisfactory construction of all work.

C. Project Schedule: Contractor shall provide as required by

Federal Acquisition Regulation (FAR) clauses. *

D. Price Breakdown - Lump Sum Items: Contractor shall provide as required by FAR clauses. *

E. Subcontractor's List

Submit a list of subcontractors who will be working on the project.

F. Submittal of Progress Payment Certificate: Contractor shall provide as required by FAR clauses. *

DIVISION 1 SECTION 01330

GENERAL REQUIREMENTS

SUBMITTALS

01330-2

G. Guarantees, Warranties And Certificates -Refer to Section

01770.

H. Operating And Maintenance Instruction - Refer to Section

01770

I. Delivery Tickets

1. If required, the Contractor shall submit to the Government's on site representative, one legible copy of each delivery ticket for all material delivered to the construction site.

2. The delivery ticket shall show brand name, catalog number, and number of items received.

J. Waste Manifests

4. The Contractor shall submit copies of all waste manifests.

5. Manifests shall state type of waste (i.e., construction debris, hazardous asbestos, etc.), location of disposal, landfill designation, EPA registration of landfill, and EPA registration for transportation of any hazardous wastes.

* The applicable FAR clauses will be provided in full text to the resultant contractor at the pre-construction conference.

(END OF SECTION 01330)

DIVISION 1 SECTION 01420

GENERAL REQUIREMENTS DEFINITIONS AND STANDARDS

01420-1

A. Regulatory Requirements

1. All work shall be accomplished in strict accordance with the regulations, codes, and laws in effect at the time the work is performed for the location where it is to be performed.

B. Means and Methods

1. Means and methods used in the performance of this contract must be in accordance with all applicable Federal Acquisition Regulations in addition to OSHA regulations, 29 Code of Federal Regulations, acceptable industry practices as recognized by societies, associations, building codes, manufacturers’ specifications and any applicable state safety and health requirements.

C. Permits

1. All permits required to support construction activities such as road permits for oversize, overweight vehicles and equipment, bridge permits, and utility hookup permits, shall be obtained and paid for by the Contractor.

(END OF SECTION 01420)

DIVISION 1 SECTION 01770

GENERAL REQUIREMENTS PROJECT CLOSEOUT

01770-1

A. Final Inspection

1. The Contractor shall request a final inspection in writing at least ten (10) days prior to the anticipated date of completion.

2. Work will not be considered ready for final inspection until all the work has been completed and the Contractor has certified that all items are in strict compliance with all contract terms and conditions.

3. The Contractor or the project supervisor shall be at the job site during the final inspection.

C. Tests

1. Complete all tests required to prove actual operating performance of equipment and systems incorporated into the project.

2. Submit reports of all tests to the Contracting Officer prior to final payment.

D. Record Drawings

The Contractor shall provide and maintain in proper order and in good, clean condition, in the field or the Hatchery office or at the project site, one (1) complete set of full size prints of all drawings. On this set, with red pencil or ink, the Contractor will neatly inscribe all changes in work. At time of final acceptance, and prior to final payment, these corrected prints will be presented to the Engineer. The Contractor will note all data and changes on these record drawings in sufficient detail and clarity to provide information necessary for preparation of "as built" drawings by the Government.

E. Guarantees, Warranties and Certificates

1. The Contractor will submit all guarantees, warranties and certificates to the government prior to final payment.

DIVISION 1 SECTION 01770

GENERAL REQUIREMENTS PROJECT CLOSEOUT

01770-2

2. The Government requires a 100% warranty for a period of one full year after final acceptance. Items of work found defective during the warranty period will be replaced at no cost to the Government and the warranty for that particular part of the work shall automatically extend for one full year beyond the completion date of repairs.

3. If a manufacturer or supplier offers a guarantee in excess of the one year requirement outlined herein, then the longer guarantee period will apply for those particular items.

(END OF SECTION 01770)

DIVISION 2 SECTION 02050

SITE WORK EROSION CONTROL FENCING

02050-1

1. The requirements of this section shall govern the work necessary to place the silt fence required for erosion control.

2. Submittal: The contractor shall submit all materials and dimensions used for the silt fencing including wood stakes, geotextile fabric, silt screen or other miscellaneous components of the silt fence.

B. Material

The geotextile fabric shall conform to the requirements of Wisconsin Standard Specifications for Highway and Structure Construction 2013 Edition, Section 628.2.6, Silt Fence.

Geotextile fabric for the silt fence shall conform to Section

628.2.6.1 and shall have the following characteristics:

TEST METHOD VALUE

Min. Grab Strength ASTM D 4632 120 Lbs Machine Direction

Min. Grab Strength ASTM D 4632 100 Lbs Cross Machine Direction

Max. Apparent Opening Size ASTM D 4751 No. 30

Minimum Permittivity ASTM D 4491 0.05, s-1

Minimum Ultraviolet stability ASTM D 4355 70%

C. Execution

1. The Contractor shall provide that during all periods of shipment and storage the silt fence fabric shall be protected from the direct sunlight, ultra-violet rays, DIVISION 2 SECTION 02050

SITE WORK EROSION CONTROL FENCING

02050-2 temperature greater than 140 degress F and any mud, debris, or damaging material. Any defective fabric not acceptable to the Engineer shall not be used. The fabric shall remain in a heavy duty protective covering prior to installation.

2. The silt fence shall be placed along the entire length of dike being rehabilitated and within 15 feet of the end of construction operations.

3. Dike rehabilitation operations shall not be started until the silt fence has been installed.

(END OF SECTION 02050)

DIVISION 2 SECTION 02110

SITE WORK EROSION CONTROL

02110-1

1. The requirements of this section shall include the erosion control and erosion control fencing necessary to conduct earthwork operations around the footbridge work site.

2. The Contractor shall schedule and conduct his operations to minimize erosion of soils and to prevent silting and muddying of the stream. Construction of erosion control fencing and other erosion control measures to reduce erosion and sedimen-tation shall be established prior to earthwork operations.

3. Prior to suspension of construction operations for appreciable lengths of time, the Contractor shall shape the earthwork in a manner that will permit storm runoff with a minimum of erosion. Temporary erosion and sediment control measures such as erosion control fencing shall be provided and maintained.

Unless otherwise provided for in the contract, temporary erosion control measures will not be paid for directly but will be considered as a subsidiary obligation of the Contractor covered under the various contract items of work.

a. Waste or disposal areas and access roads, if necessary, shall be constructed in a manner that will keep sediment from entering the stream.

b. Mechanized equipment shall only be operated in the live stream area within the construction limits of work.

c. The stream shall be cleared as soon as practicable of falsework, debris, or other items not part of the finished work.

d. Water from aggregate washing or other operations containing sediment shall be treated by filtration, a settling basin, or other means sufficient to reduce the sediment content to no more than that of the area into which it is discharged.

e. Pollutants such as fuels, lubricants, bitumens, raw sewage, and other harmful materials shall not be discharged into or near rivers, streams, and impound-ments or into natural or man-made channels leading thereto. Wash water or waste from concrete mixing

DIVISION 2 SECTION 02110

SITE WORK EROSION CONTROL

02110-2 operations shall not be allowed to enter live streams.

f. All applicable regulations and statutes relating to the preventions and abatement of pollution shall be complied with during the performance of the contract.

(END OF SECTION 02110)

DIVISION 2 SECTION 02200

SITEWORK SITEWORK

02200-1

1. The requirements of this section shall include the general site work necessary to prepare the area for construction of the new concrete piers.

2. The Contractor shall remove all riprap, wire fencing, erosion control matting, or other materials that would prevent the placement of the helical anchors or forming operations for the new concrete piers. Riprap and topsoil shall be stockpiled for later placement between and around the new concrete bridge support piers or embankment areas. See photos in the construction drawings showing the general area site conditions.

3. The contractor shall determine the best means to allow equipment access to the stream area whether that be with metal tracks, construction of a temporary road, or other means deemed practicable.

4. Finish Grading

a. Should a temporary road be built to provide access, the contractor shall upon removal of the road perform finish grading of the embankment to blend to existing dike embankment grades.

b. Plow, disk and drag any areas compacted by equipment, other vehicles or storage of materials to lend and match the adjacent streambed areas.

c. Insure a minimum of 4" of topsoil covers all disturbed embankment slopes. Spread salvaged topsoil uniformly over disturbed areas.

5. Riprap

a. Riprap to the degree it is encountered at the site shall be placed evenly over the gravel areas around the new concrete bridge piers and in the center of the stream area between the piers.

DIVISION 2 SECTION 02200

SITEWORK SITEWORK

02200-2

(END OF SECTION 02200

DIVISION 2 SECTION 02230

SITEWORK AGGREGATE

02230-1

1. Work under this section includes the furnishing, transporting, spreading and compacting of gravel around the bridge piers as shown on the contract drawings.

2. The Contractor shall provide all labor, tools, materials and equipment necessary to install the gravel shown on the contract drawings and as specified herein.

3. All work specified herein shall be accomplished only when, in the opinion of the Inspector, weather and site conditions are suitable for this type of work.

4. Any equipment which drips fuel, grease, oil or any other substance which, in the opinion of the Engineer, is detrimental to the quality of the finished product shall not be permitted on the job site until such drips are adequately repaired.

5. Submittals:

a. Certification that all materials meet these specifications shall be submitted for approval prior to delivery of any materials to the job site.

B. Materials

1. Gravel material shall meet the requirements of 2018 Missouri Standard Specifications for Highway Construction, Section 1007 Aggregate Base Course, Type 7 or similar graded aggregate.

1. Sub-grade Preparation: Preparation shall include grading the stream bottom if necessary, and laying a polypropylene geo-grid membrane prior to placement.

DIVISION 2 SECTION 02230

SITEWORK AGGREGATE

02230-2

2. Placement and Compaction: The aggregate shall be laid over the polypropylene geo-grid to the grade shown on the drawings. The gravel placement will be done in 1 lift. The gravel shall be graded, smoothed, and be free of depressions or lumps. The gravel shall be compacted using the skid steer on site to install the helical anchors or any other means that are deemed practicable by the Contractor until no further consolidation occurs.

3. Existing stockpiled riprap shall be placed over the gravel around the piers to the extent available at the site.

(END OF SECTION 02230)

DIVISION SECTION 02272

SITEWORK POLYPROPYLENE GEOGRID

02272-1

1. The requirements of this section shall govern the work necessary to lay and place the polypropylene geo-grid material. The geogrid shall be used in conjunction with aggregate to stabilize the area around the bridge pier supports as shown on the Contract Drawings. Excess geogrid can also be used to stabilize soft ground areas for light vehicle and equipment operation.

1.

2. Follow manufacturer’s recommended practices for geogrid placement.

3. The Contractor shall provide that during all periods of shipment and storage the geogrid material shall be protected from any mud, debris, or damaging material.

Geogrid shall not be placed in temperatures lower than 20 degrees F. Defective geogrid material shall not be used. The geogrid shall remain in a heavy duty protective covering prior to installation.

4. Submittal: The Contractor shall furnish a product specification sheet which meets the requirements stated in these specifications.

B. Material

The geogrid shall be an integrally formed biaxial polypropylene. Minimum product properties shall be as follows:

Index Properties MD Values XMD Values

Aperture Dimension 1.0 inches 1.3 inches Minimum Rib Thickness 0.05 inches 0.05 inches Tensile Strength 2% Strain 410 lbs/ft 620 lbs/ft Tensile Strength 5% Strain 810 lbs/ft 1340 lbs/ft Ultimate Tensile Strength 1310 lbs/ft 1970 lbs/ft

DIVISION SECTION 02272

SITEWORK POLYPROPYLENE GEOGRID

02272-2

Structural Integrity

Junction Efficiency 93%

Flextural Stiffness 750,000 mg-cm

Aperture Stability 0.65 m-N/deg

Durability

Resistance - Installation Damage 95%SC/93%SW/90%GP Resistance - Long Term Degradation 100%- EPA 9090 Resistance to UV Degradation 100%- ASTMD 4355-05

2. After site work specified in Section 02200 is completed the contractor shall lay out the polypropylene grid to stabilize the area around the new bridge piers. The grid will be placed under and extend 3 feet around the base of the newly constructed concrete bridge piers.

3. Mechanically connect the geogrid sections together with nylon cable ties to maintain overlap dimensions.

4. Cut and overlap geogrid to accommodate curves or end sections. Cutting may be done with sharp shears, knife, or handheld saw.

5. Place and compact aggregate on the geogrid as specified in

Section 02230, Aggregate and to the extent shown on the drawings.

6. Wear appropriate safety equipment such as gloves and eye protection.

(END OF SECTION 02272)

DIVISION 2 SECTION 02380

SITEWORK HELICAL ANCHORS

Horicon 02380-1

1. Section Includes: Supplying and installing helical anchors to support the new concrete bridge support piers as shown on the plans. Helical anchors shall be installed a minimum 15 feet below grade.

2. Submittals:

a. The Contractor shall furnish the pier anchor fabricator’s complete technical data and product specification for approval showing sizes, materials, and connecting hardware.

b. The Contractor shall furnish an installation record for each pier listing foreman’s name that witnessed installation date and time of installation location and reference number of pier, description of lead section and extensions installed, overall depth of the anchor as referenced from bracket plate and torque readings for the last three feet of installation or termination torque shall be recorded as a minimum.

1. The manufacturer shall be one who regularly engages in the manufacturing of helical anchors.

The listed manufacturer is for reference purposes only and to establish a standard for operation. Other manufacturer’s may be approved by the Government subject to equivalent design and attributes to the items specified.

A.B. CHANCE Company (HUBBELL), 210 N Allen Street, Centralia MO 65240, 573-682-8367

2. Helical Anchors Structural Requirements:

a. Bearing Capacity: 29,000 Lbs.

b. Allowable Lateral Capacity: 1200 Lbs.

Horicon 02380-2

c. Maximum Installation Torque 8500 Ft. Lbs.

d. Allowable Bending Resistance: 4500 Ft. Lbs.

e. The plates shall have a Class B-1 hot dipped galvanized coating complying with ASTM A 153

3. Pier shafts shall be a minimum of 3.5 inch dia. solid steel conforming to ASTM A 29 and AISI.

4. Upper Bracket Pipe Assembly: Upper bracket pipe assembly shall be hot rolled round steel tubing complying with ASTM A 512 with a minimum tensile strength 50 ksi. The closure plate shall be a minimum 3/4 inch and conform to

AASHTO M 183.

5. Bracket Plate shall be a minimum 1/4 inch steel complying with ASTM A 36.

6. All hardware, plates, and bolts shall be hot dipped galvanized steel conforming ASTM A153 AASHTO Specification M 232.

C. Execution:

1. Drilling/Driving equipment shall be adequate for handling the length of piers shown on the drawings and also adequate torque to meet the required bearing.

Helical anchors shall be installed according to manufacturer’s specifications.

2. Piers will be installed in a smooth continuous manor with a variation of not more than 1/4 inch per foot from the vertical and their heads shall remain straight to align with the reinforced concrete pile cap.

3. The top helix must be a minimum of five feet below the soil surface. If this cannot be achieved the contracting officer must be contacted before proceeding further.

4. Plain extension pipe to position the pier to the depth required shall be coupled using 2 high strength structural bolts. Bolts shall be tightened as recommended by the helical anchor manufacturer.

Horicon 02380-3

5. Any damage resulting from improper handling or installation, as determined by the Contracting Officer, shall be repaired or replaced at the Contractor's expense.

6. The helical anchors shall be installed as close as practicable to the existing sonotube concrete piles.

The contractor has discretion as to the distance this shall be given all factors that may restrict driving the anchors at the site. The new concrete pile length shown on the drawings may change based on the contractor’s actual placement of the helical anchors.

(END OF SECTION 02380)

DIVISION 3 SECTION 03210

CONCRETE REINFORCING STEEL

03210-1

1. All concrete reinforcing steel will be fabricated and placed in accordance with the "Manual of Standard Practice" by the Concrete Reinforcing Steel Institute (CRSI), 228 North LaSalle Street, Chicago, Illinois 60601. Fabrication and placement will also be in accordance with these specifications and as shown on the contract drawings.

2. Submittal: The Contractor shall furnish mill certificates and shop drawings for the reinforcing steel used. The mill certificate shall include all descriptive material information pertaining to the reinforcing steel. The shop drawings shall show all dimensions and connection details.

1. Reinforcing steel shall conform to the requirements of ASTM A-615, latest revision.

a. All bars No. 4 or larger shall be Grade 60.

b. All bars used on this project shall be epoxy coated in conformance with AASHTO M 284.

2. Bar chairs and other similar devices used to support reinforcing steel shall be items of standard manufacture, sized to support the reinforcement to the dimensions shown on the contract drawings and of adequate strength to resist displacement when placing concrete.

Reinforcing bars shall be set to proper elevation by the use of metal chairs. The use of wood blocks, mortar blocks or other materials is prohibited.

DIVISION 3 SECTION 03210

CONCRETE REINFORCING STEEL

03210-2

1. Store steel reinforcement in an orderly manner above ground on platforms, skids, or other supports. Where possible, store reinforcement steel above the extreme high water elevation.

2. All reinforcing steel shall be securely tied in place, supported and spaced so that it will not be displaced while placing concrete.

3. The dimensions as shown on the contract drawings, indicate the clear distance from the edge of the main reinforcement to the concrete surface. The concrete covering of stirrups, spacer bars and similar secondary reinforcements may be reduced by the diameter of such bars.

4. Lap requirements will be as shown on the contract drawings or as specified in the latest edition of ACI standard 318.

5. Bar placement tolerance shall be as follows:

a. Between bars: ¼-inch (plus or minus).

b. Vertical position of bars in slabs and walls:

1/2-inch (plus or minus).

6. Subject to the approval of the Engineer, reinforcement bars may be shifted or bent in the field where necessary to avoid openings, pipes, embedded items and other obstructions.

7. The Contractor will notify the designated Government

Inspector when the reinforcing is in place and prior to the placement of forms so that the reinforcing can be inspected.

(END OF SECTION 03210)

DIVISION 3 SECTION 03300

CONCRETE CAST-IN-PLACE CONCRETE

03300-1

1. The bridge is in a remote location inaccessible to conventional concrete truck delivery means. The contractor shall provide the method to provide concrete to the site either by providing a portable concrete mixing machine or other method deemed practical.

2. Testing. The Contractor shall:

a. Perform appropriate laboratory tests including compression tests of cylinders, and slump tests to substantiate mix designs. Two (2) copies of certified testing laboratory reports shall be furnished the Government as soon as possible after the test has been completed. One copy of the cylinder test results shall be sent directly to the Engineer from the testing laboratory and one copy to the Government Inspector. The tests will clearly indicate the mix proportions used, test results, and certify compliance with these specifications.

b. The Contractor shall take the following minimum number of tests to assure compliance with contract requirements:

Test Material Frequency

Slump

(ASTM C-143)

Concrete One per pier, or as directed by the Engineer.

Strength*

(ASTM C-31,

make & cure;

ASTM C-39,

test cylinders)

Concrete 3 cylinders per pier for each day's pour.

* Test one (1) cylinder at 7 days and two (2) cylinders at 28 days.

03300-2

3. Submittals: The onsite proportions of all components of the concrete mix shall be by weight and shall be submitted for approval prior to placement of any concrete. The approved mix design shall not be changed throughout concrete placement unless a new mix design and supplier are approved.

1. Cement shall be Portland Cement, Type I, IA, III, or IIIA conforming to the requirements of ASTM C-150.

2. Water shall be clean and free from deleterious amounts of acids, oil, alkalis, and organic materials, and conform to ASTM C-109.

3. All aggregates shall conform to the requirements of ASTM

C-33. The aggregate particles shall be clean, hard, unweathered, and uncoated.

a. Fine aggregate shall be natural sand conforming to the requirements of ASTM C-33.

b. Coarse aggregates shall be crushed stone or washed gravel conforming to the grading requirements of ASTM C-33, size No. 67, 3/4 to No. 4.

4. The concrete mix design shall conform to the following criteria:

a. Compressive Strength - 3000 psi @ 28 days (min).

b. Slump - 2 to 4 inches.

1. General: Prior to placement, the Contractor shall submit his procedure to provide concrete to the site.

2. Anchor Bolts and Expansion Bolts:

03300-3

a. The Contractor will set all helical anchor shafts and steel cap plates precisely and maintain positions during concreting operations. Anchor bolts if needed shall be standard manufactured items intended for the use shown. Bolts, nuts, washers and appurtenant items shall be galvanized unless otherwise noted.

Bolts shall be furnished with cut washers.

3. Pipe Sleeves and Embedded Items:

a. Before placing any concrete, the Contractor will determine that all embedded metal pipe sleeves, anchors, anchor slots, anchor bolts, wedge inserts, concrete inserts, rebar and similar items are firmly secured and fastened or grouted in place.

4. Placing Concrete

e. The Contractor will convey concrete from mixer to forms as rapidly as practicable and by methods which will prevent segregation or loss of ingredients, will deposit the concrete as nearly as practicable in its final position. The Contractor will place concrete before the initial set has occurred, and in no event after it has contained its water content for more than one (1) hour. The concrete will be placed on clean, damp surfaces, free from water, or upon properly consolidated fills, but never upon soft mud, dry porous earth, or frozen ground.

g. The Contractor will deposit continuously and as rapidly as practicable until the unit of operation is completed.

h. The Contractor will consolidate all concrete by vibration so that the concrete is thoroughly worked around the reinforcement, around embedded items, and into corners of forms, eliminating all air or stone pockets which may cause honeycombing, pitting, or planes of weakness.

i. In joining fresh concrete to concrete that has already set, the Contractor will remove all loose

03300-4 and foreign materials from set concrete, scrub with wire brooms and thoroughly clean the set concrete, and will moisten existing surfaces when the new concrete is placed.

5. Weather Conditions:

a. Protection - The Contractor will:

(1) Provide adequate protection against rain, sleet and snow before and during placement and finish-ing of concrete.

(2) Provide adequate protective measures to maintain the temperature of the concrete as specified.

(3) Keep a thermometer on the job site at all times to record temperature.

b. Cold Weather Concreting - The Contractor will:

(1) Not place concrete when the atmospheric tempera-ture is below 40°F or when the concrete is likely to be subjected to freezing temperatures within 24 hours after it has been deposited unless adequate temporary heating is provided. In no case shall concrete be exposed to freezing temperature for 72 hours after placing.

(3) Use no frozen materials or materials containing ice in concrete.

(4) Use no salt or other chemicals to prevent freezing.

6. Repairing and Patching - The Contractor will:

a. Remove and replace at no additional cost, any con-crete not formed as shown on plans, concrete out of alignment, surfaces beyond required tolerances, or defective surfaces which cannot be properly repaired or patched, including any concrete failing to meet the strength requirements.

03300-5

b. Clean, dampen, and fill all bolt and tie holes and other similar defects, with patching concrete immedi-ately after removing forms.

c. Remove to sound concrete all bulges, projections, honeycomb and all other defects in exposed concrete, and patch. Thickness of patch: 1-inch, minimum.

Cut the perimeter edges of all areas to receive patching mix perpendicular to the surface or under-cut. Feather-edge patches will not be allowed. Do all patching before concrete is thoroughly dry.

7. Curing - The Contractor will:

a. Protect concrete from premature drying. Provide temporary housing, covering, or other protection used in curing and keep in place and intact a minimum of 24 hours after placement.

b. Keep concrete continuously moist for seven (7) days, and prevent rapid drying at the end of the curing period.

(2) Use non-staining polyethylene film and keep all joints weighted to prevent wind penetration.

8. Finishing:

a. A rubbed finish shall be given to all exposed walls above finish ground line. Fins and other projections shall be carefully removed and damaged places re-paired. After all required patching, cleaning, and correction of major imperfections have been completed, the concrete surface shall be rubbed with cement or carborundum bricks and water, leaving the surface uniformly smooth and clean.

(END OF SECTION 03300)

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*A s B ui lts n ot re qu ire d un til a fte r c om pl et io n of P ro je

PRECONSTRUCTION SAFETY CHECKLIST

PROJECT LOCATION:

PRECONSTRUCTION MEETING

DATE:

NAME AND ADDRESS OF

CO NT RACT OR :

NAME OF CONTRACTOR

SU PER INT EN DE NT /FO RE M AN

NAME OF SERVICE

CONTRACTING OFFICER:

NAM E O F C ON TR ACT OR ’S

COM PETEN T PERSO N (PER 29

CFR

PROPOSED CONSTRUCTION

STAR T D ATE:

PROJECT T ITLE: CONTRACT NUMBER:

The Fish and Wildlife Service (FWS) places safety and health as a top priority at all Service contracted construction sites (360 FW 4). The contractor has ultimate responsibility for safety during construction until final completion and acceptance of the project by FWS.

This checklist serves as an assurance tool/guide in assessing safety program preparations of the contractor, and is not all-inclusive. As tasks change and new risks and hazards are introduced, you may need to address additional safeguards and corrective measures.

The contractor and subcontractor(s) must comply with all Occupational Safety and Health Administration (OSHA) regulations applicable to the construction project, including requirements set forth w ithin solicitation provisions and contract clauses (e.g., FAR 52.236-13 “Accident Prevention” with Alternate I and Special Provisions). It is the responsibility of the contractor/subcontractor(s) to adhere to regulations found at 29 CFR 1910, 1926, and 1928. (See page 5 for Table of Contents of OSHA Construction Safety Standards.) Each contractor/subcontractor must initiate and maintain an effective safety program that provides adequate systematic policies, procedures, and practices to protect their employees from, and allow them to recognize, job-related safety and health hazards. The program must include provisions for the systematic identification, evaluation, and prevention/control of general work s ite hazards, specific job hazards, and potential hazards that may arise from foreseeable conditions, as well as providing a competent person to conduct frequent and regular inspections. The contractor must instruct each employee to recognize and avoid unsafe conditions and the regulations applicable to the work environm ent.

The contractor will address the following items prior to and/or during the Preconstruction Conference (the Contracting

Officer/Contracting Officer’s Representative will record these items):

1.

FAR 52.236-13, Accident Prevention, Alternate I and applicable safety provisions?

The contractor has read and understands his/her re spo nsibilities for compliance with contractual safety language -

NO ___YES ___

2. Has contractor prepared a Safety Plan that analyzes anticipated hazards of the project and indicates how the hazards will be controlled?

use, scaffolding, excavat

Contractor must identify specific procedures for controlling hazardous operations such as crane

NO ___ion/trenching, hot work/welding, etc,. ES ___ Y N/A

FWS Form 3-2199 05/03 Page 1 of 5

3. How will contractor/subcontractor address the four leading hazards of construction work: falls, struck by, caught in/betw nd electr ical?

4. The “Designated Competent Person” (responsible for the pro ject’s safety and health performance) is knowledgeable corrective measures?

in applicable OSHA regulations and capable of identifying existing/predictable hazards, and has the authority to prompt

YES ___ NO ___

5.

haza

Do contractor and subcon tractor em ployees know wha t to do in the event of an em erge ncy (e.g., injury, fire, accident, ESYrdous material spill, etc.) with regard to the following actions? NO

a. Notification of Departm ent, FW S Facility Manager, CO, COR, CI, etc.

b. Means of com munication with contact numbers (e.g., radio, cellular, pager, etc.).

c. Availability of first-aid/medically-trained contractor personnel with appropriate medical supplies.

d. Personnel (including subcontractors) knowledge of location for imm ediate aid (e.g., first-aid, etc.).

e. Evacuation routes, signals, and procedures are provided to all on-site personnel.

f. Safety and health information disseminated to all site personnel (e.g., contractor and subcontractor employees).

6.

(If no, skip to # 7)

a. Location and type of trailer (office or equipment).

b. Telephone hook-up.

c. Electrical hook-up.

d.

W ill a contractor/s ubc ontra ctor tra iler be broug ht on site and its hook-up/p lacem ent coord inated with COR /CI?

e. Propane used for heating?

f. Serve as first-aid station? YES

Vehicle parking arrang em ent (adequate space).

YES ___

___NO ___

NO ___

7. Is contractor aware that he/she must ensure construction area is clearly delineated and posted with appropriate warning signs (e .g., “Hard Hat Area”, “Construction Site – CLOSED”, rea C losed to Public”, etc.), and that instructional signs (e.g., designated parking area, etc.) and flagmen or barriers may be required? Yes No

Housekeeping - Is contractor/subcontractor aware that they must ensure that following acceptable housekeeping

NO

“A

8.

standards are practiced from project’s start to finish?

YES

a. Form/scrap lumber with protruding nails and all other debris shall be kept clear from work areas.

b. Combustible scrap and debris shall be removed at regular/frequent intervals.

c. Materials shall be stored with regard to their fire characteristics with effective fire protection and prevention measures used.

d. An enclosed chute shall be used whenever materials are dropped more than 20 feet to an exterior point of a building.

e. Aisles, exits, and passageways shall be kept clear and in good repair.

9.

Is contractor aware of following Environmental and Personal Controls standards? YES NO

a. Potable water provided.

b. Restroom facilities provided.

c. W ashing facility provided for employees engaged in operations involving harmful substances.

d. Intoxicating beverages, controlled substances, and/or firearms are not permitted under any circumstances on the construction site.

e. All activities in or around water bodies must be in compliance with regulations for worker safety, including personal flotation devices or buoyant work vests, lifelines, ring buoys and guardrails while working over or adjacent to water hazards, and from barges, boats, and/or launches.

FWS Form 3-2199 05/03 Page 2 of 5

10.

a. Confined Space.

b. Scaffolding.

c. Fall Protection.

d. Hazard Comm unication.

e. Lockout/Tagout.

f. Respiratory Protection.

g. First Aid.

Is contractor/subcontactor aware that following employee training considerations may need to be addressed?

YES NO

11. Contractor/subcontractor is responsible for requiring the wearing of appropriate personal protective equipment in all operations where there is an exposure to hazardous conditions or where the need is indicated for using such equipment to reduce the hazard to their employee(s). The contractor/subcontractor is also responsible for ensuring equipment may include the following: Discussed with contractor?

that personnel using protective equipment shall be trained and medically qualified to do so. Such personal protective

a. Eye and face protection (safety goggles, safety glasses, welding goggles, face shields, etc.).

b. Protective footwear (safety shoes, boots).

c. Protective gloves (leather, rubber, insulated).

d. Respirators (dust, half-face, full-face, etc.).

e. Hearing protection (ear plugs, muffs, etc.).

f. Coast Guard-approved PFD/buoyant vest.

g. Fall protection equipm ent.

12. Tools (hand, electric, pneumatic) Standards: Discussed with contractor?

a. Hand tools, power tools, and jacks are maintained in safe operating condition and used only for the purpose for which they were designed.

b. Electric power-operated tools must be either approved double-insulated, or be properly grounded (see Item

#13 “Electrical” for additional considerations).

13. Electrical Standards:

a. Ground Fault Circuit Interrupters (GFCIs) or an assured equipment-grounding conductor program must be used to protect employees from ground-fault hazards.

b. Electrical cords/insulation must be in good condition (not frayed or damaged).

c. All ground plugs must be on electrical cords, if so designed by the manufacturer.

d. W orkspace, walkways, and similar locations shall be kept clear of electrical cords.

e.

f.

All electrical extension cords must be of the three-wire type.

Contractor/subcontractor must determine need and implem ent an appropriate Lock-out/Tag-out program.

14. W ill motor vehicles, cranes, and/or heavy equipment be used? YES NO __ (If no, skip to #15)

a. Crane and derrick use must comply with applicable standards.

b. Rollover protection as required.

c. Back-up alarms or observer signals as required.

d. No crawler type vehicles are allowed on an improved road.

e. All utilities must be located prior to excavating soil.

15. Excavating and Trenching work? YES ___ NO ___ (If no, skip to #16)

a. All excavating/trenching must be in accordance with applicable safety standards.

b. All utilities must be located prior to excavating.

FWS Form 3-2199 05/03 Page 3 of 5

16. Elevated W ork? YES ___ NO ___ (If no, skip to #17) a.

Ladders and their use must conform to standards.

b. Aerial lift usage must meet applicable requirements.

c. Fall protection needs must be assessed per standards.

d. Scaffold work must conform to standards.

e. Stair design, construction, and use must meet applicable requirements.

f. Toeboards, when used to protect workers from falling objects, must be erected along the edge of the overhead walking/working surface.

g. Safety net use must comply with standards.

h. Railing must conform to standards.

17.

construction.

Contractor is aware of and understands the need to incorporate app licable requirem ents for concrete and m asonry

YES ___ NO ___ N/A ___

18. Contractor is aware of and understands the need to incorporate welding and cutting operations that com ply with etc.).

applicable safe ty requirem ents (e.g., compressed gas cylinders are protected from vehicle traffic, valve caps secured, 19.

paint

Contrac tor is aw are o f and understands the need to m anage hazard ous m aterials/waste appro priately (e.g., YES N/A

N/A ___ s, solvents, fuels, etc.) including the following: NO ___

a. Use and storage of flammable/combustible liquids.

b. Aboveground fuel storage tanks properly managed/contained.

c. Com pressed gases and cylinders managed correctly (e.g., secured and protected from damage, etc.).

d. Procedures for managing use, storage, and disposal of hazardous materials properly established.

e. Excess/waste product(s) and containers properly disposed of per environmental regulations.

f. Hazards of product use and the need for protective measures (e .g., personal protective equipment, etc.)

conveyed to employees.

g. Asbestos work conform s to applicable standards.

h. Exposure to toxic gases, vapors, fum es, dusts , and m ists managed correctly.

i. Lead, laser, and any other hazardous components managed per the applicable…