Attach 03 Indian Slough Landing Specifications.pdf

Boat Landing Replacement Indian Slough part of the Upper Mississippi River National Wildlife & Fish Refuge located in Buffalo County, Wisconsin

United States Department of the Interior Fish and Wildlife Service

Infrastructure Management Division Region 3, Bloomington, MN 55437-1458

October 2020

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 CONSTRUCTION

SECTION 02071 SELECTIVE DEMOLITION

SECTION 02200 EXCAVATION, TRENCHING, AND BACKFILL

SECTION 02210 EROSION CONTROL

SECTION 02600 AGGREGATE BASE

DIVISION 3 - CONCRETE

SECTION 03300 CAST-IN-PLACE CONCRETE

ATTACHMENTS:

PRECONSTRUCTION SAFETY CHECKLIST

SUBMITTAL REGISTER

CONSTRUCTION DRAWINGS

DIVISION 1 SECTION 01100

GENERAL REQUIREMENTS SUMMARY OF THE WORK

01100-1

PART 1 – GENERAL

1.1 Project Title: Concrete boat landing replacement at

Indian Slough Landing, part of the Upper Mississippi River National Wildlife & Fish Refuge.

1.2 Work under these Specifications: The Fish & Wildlife

Service is requesting proposals to replace the existing concrete boat landing at the Indian Slough complex within the Upper Miss. River NW&FR. The existing landing is old and is in need of replacement.

At the same time, the FWS would like to make additional improvements as shown on the attached drawings and as specified herein. The contractor shall furnish all materials, labor, and equipment for the work described below.

Work includes but is not limited to:

1. Construction of a new 15’x30’ reinforced concrete “pour & push” boat landing as per the attached drawings and specifications.

2. Construction of other improvements as shown on the drawings including aggregate base, dredging materials from around the landing, excavations, disposal of the existing landing, and other miscellaneous items required by the drawings and specifications.

This work shall not be measured for payment and shall be paid for on a lump sum basis, complete.

1.3 Location and Inspection of Site

A. The work site is located at the Indian Slough Complex of the Upper Miss. River NW&FR in Buffalo County, Wisconsin as shown on the included drawings. The mailing address is shown on the Solicitation, Offer, and Award (Standard Forms 1442 or, 18 block 9) as attached to this Invitation.

B. All prospective bidders/quoters, contractors, subcontractors, and related persons are encouraged to visit the site(s) of the proposed work and to assess the location(s) and extent of

01100-2 the work prior to submitting bids/quotes. Persons may inspect the work site by contacting the Refuge Manager. All questions regarding the scope of work shall be presented in writing to the Contract Officer.

1.4 Specifications and Drawings for Construction

A. The successful bidder will be provided, upon request, pdf or AutoCAD versions of the contract drawings as necessary for execution of this contract. These drawings will be provided at no additional cost to the successful bidder/quoter.

B. Exact location of all affected utilities will be the responsibility of the contractor. Drawings do not completely show existing utilities. Site verification is required in addition to contacting any local authorities and utility companies to determine exact locations of utilities.

C. In case of difference between drawings and specifications, the specifications shall govern.

1.5 Work Not Included In This Contract

A. All items indicated "NIC" on drawings or in specifications are items not included in this contract.

B. Work in place is generally shown as "Existing" on the Contract Drawings.

C. 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.

1.6 Items Provided By The Government

A. Work to be accomplished by the Government or manufactured items to be provided by the

01100-3

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.

1.7 Temporary Facilities

A. Maintain and restore all Government roads, service areas and utilities used to pre-construction condition.

B. Temporary Toilet facilities will be required for workers throughout the project.

C. Water needed for construction shall be provided by the contractor.

D. The contractor shall provide any required electrical power supply needed to complete this project.

E. The Government will not provide phone/fax services and will not accept deliveries or unload deliveries.

F. The Government will not provide tools, parts, or other equipment to the contractor for use during construction.

1.8 Site Access, Staking and Right of Way

A. 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.

B. Construction staking will not be provided by the

Government, the contractor shall include all costs to stakeout, mark, survey, or otherwise layout the work to be accomplished as part of this contract.

01100-4

C. Maintain traffic and public safety in a safe manner with signs, barricades, lights, and watchmen as required. Follow Manual of Uniform Traffic Control Devices (MUTCD). 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, or state having jurisdiction in the project vicinity to insure bidders/quoters 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, permission must be obtained from the owner to use private property or roads in the conduct of the Work.

D. Work scheduled on Saturdays, Sundays, Federal

Holidays or other than normal working hours shall be approved in advance by the COR, Hatchery Manager, and Contracting Officer.

1.9 Safety - In addition to FAR 52.236-13 Accident

Prevention

A. The contractor shall designate a safety officer to ensure a safe work site. The safety officer shall perform daily work site inspections to assure compliance with all safety regulations and standards.

B. The Contractor’s Safety Plan shall be available on-site. The Contractor shall provide Safety Data Sheets (SDS) for all hazardous materials brought on-site. SDS shall be made available in a conspicuous location.

C. The Contractor shall provide a Pre-construction

Safety Checklist during the preconstruction conference.

D. All equipment and work activities shall comply with OSHA Regulations and all accidents incidental to work performed under this contract shall be reported in accordance with OSHA reporting requirements. Additionally a copy of

01100-5 the accident report shall be provided to the Contracting Officer.

E. The contractor shall provide and install safety barricades, signs, or other warning devices to delineate & warn the public of the construction area.

F. Provide at least one non-freezing-type fire extinguisher in each workshop and shed used for storage of materials on the premises. Place in location readily accessible to workers.

G. Provide at least one non-freezing-type fire extinguisher of the appropriate class for each group of workers performing flammable procedures.

H. Provide and maintain a basic first aid kit for use of workers.

(a) Provide first aid supply commensurate with size of project with items necessary for first aid treatment of all injuries. The first aid supply shall include items identified on SDS (see paragraph B of this section) in applicable locations.

(b) Advise all workers of the location of first aid supplies.

(c) Post telephone numbers of nearest hospital or ambulance service and fire station in conspicuous location. Advise all workers of location of telephone numbers.

I. Provide necessary Personnel Protective Equipment

(PPE) as identified by SDS and OSHA regulations.

Provide documentation, workers have been trained in use of PPE prior to individual use.

PART 2 - PRODUCTS (Not Applicable)

PART 3 - EXECUTION (Not Applicable)

(END OF SECTION 01100)

DIVISION 1 SECTION 01310

GENERAL REQUIREMENTS PROJECT COORDINATION

01310-1

PART 1 - GENERAL

1.1 Jobsite Administration - Superintendence, Subcontract

administration and Quality Control, is the responsibility of the Contractor.

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

B. 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. No extension of contract performance time will be permitted until the Government determines that the deficiencies in performance, which caused the temporary suspension, have been corrected.

C. The Contractor shall have responsible superintendence on site during all project operations. Contractor shall notify Government of any changes of superintendents.

D. The Contractor shall notify the COR at least ten (10) days prior to the anticipated date of completion of all Work specified herein. Upon completion of the Work, the COR 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.

F. The contractor shall notify the COR and Inspector five

(5) days prior to any concrete pours, paving and back filling so that the Inspector can be on-site to perform inspections.

1.2 Modification/Change Order procedures

A. 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.

01310-2

B. 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.

C. 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.

1.3 Preconstruction Conference

A. 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 Contract administration, construction operations and the project schedule will be discussed. The project schedule shall be in accordance with Section 01330.

The Preconstruction Safety Checklist shall be submitted for review during this conference. Please pay special attention to Question #15 of the “Preconstruction Safety Checklist”.

1.4 Progress Meetings

A. 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.

B. 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

01310-3 discussions and decisions will be prepared by the Government and distributed to those attending and others affected.

PART 3 - EXECUTION (not Applicable)

(END OF SECTION 01310)

DIVISION 1 SECTION 01330

GENERAL REQUIREMENTS SUBMITTALS

01330-1

1.1 General:

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

B. When specifically requested by the Contracting Officer

(CO), Contractor’s Officer’s Representative (COR) or the Government’s Construction Inspector, the Contractor shall provide copies of manufacturer's written installation instructions and/or recommendations for review and approval prior to accomplishing equipment installation.

1.2 Submittal Register:

A. A submittal register, summarizing (not a complete listing) major items requiring submittals under this solicitation, is provided as an attachment to this document. The Contractor shall provide all required submittals to the COR within 30 days of award except for items noted otherwise on the submittal register.

B. Furnish a minimum of four copies of all required submittals. Three copies will be retained by the Government. The remaining copies will be returned to the Contractor.

C. 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.

1.3 Project Schedule: Contractor shall provide as required by

Federal Acquisition Regulation (FAR) clauses. *

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

01330-2

1.5 Subcontractor's List

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

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

1.7 Guarantees, Warranties And Certificates: Refer to Section

01770

1.8 Operating And Maintenance Instruction: Refer to Section

01770

1.9 Delivery Tickets

A. 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.

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

1.10 Waste Manifests

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

B. 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.

01330-3

* 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

1.1 Regulatory Requirements

A. 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. All completed construction shall comply with OSHA, NFPA, NEC and ABA regulations.

B. All work performed on this project shall comply with

Title 40, Protection of the Environment, Code of Federal Regulations.

C. All electrical installations, components and work shall comply with the most current edition of NFPA 70 National Electric Code.

1.2 Means and Methods

A. 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.

1.3 Permits

A. All permits required to support the 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

1.1 Manufacturer's Specifications

A. The installation of manufactured products and equipment, together with all associated parts, shall be in conformance with the manufacturer's recommendations, and code requirements. All installations shall be complete and ready for immediate use, and every part required for proper operation of the manufacturer's equipment shall be provided. Following the completion of the Work under this Contract, all installed equipment shall be tested for proper operation and compliance with the Contract.

1.2 Final Inspection

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

B. 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 properly operating and in strict compliance with all Contract terms and conditions.

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

1.3 Tests

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

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

C. Provide any regulatory acceptance documents in cases of cleanup.

01770-2

1.4 Maintenance and Operating Instructions

A. Submit three (3) final copies of all operating, maintenance instructions and parts lists for all equipment and systems that require adjustment, servicing, and attention for proper operation.

Include all information necessary for proper operation of equipment. Use simple, non-technical language where possible. Provide all necessary diagrams and schematics required by repairmen. Any hazards likely to occur in operation of equipment shall be pointed out to avoid improper operation of any equipment that might result in damage or danger to equipment, building or personnel.

B. Final copies of all maintenance and operating information shall be submitted in bound form as a "Manual of Operating Instructions" with items grouped by sections of Work. Append each manual with name, address, telephone number of Contractor, subcontractor and companies or individuals providing service for equipment used.

C. Provide competent personnel to meet with the

Government representative to fully explain and familiarize the Government personnel with all equipment and its operation and maintenance.

1.5 Record Drawings:

The Contractor shall provide and maintain in proper order and in good, clean condition, at the project 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 COR. 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.

01770-3

1.6 Guarantees, Warranties and Certificates

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

B. 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.

C. If a manufacturer or supplier offers a guarantee/warranty or is required per the detailed specification to provide a guarantee/warranty in excess of the one year requirement outlined herein, then the longer period will apply for those particular items.

(END OF SECTION 01770)

DIVISION 2 SECTION 02071

SITE WORK SELECTIVE DEMOLITION

02071-1

1.1. General

A. The work of this section consists of the demolition and removal of concrete landing, and other miscellaneous items as shown on the contract drawings.

PART 2 – PRODUCTS

PART 3 - EXECUTION

3.1 Disposal

1. Concrete material or other non-regulated demolition material shall be removed from the site and disposed of in accordance with state and local regulations.

2. All hazardous demolition material such as asbestos, treated wood or asphalt pavement shall be removed from the site and disposed of in an EPA licensed landfill or as otherwise required by state and local regulations.

3. The contractor is encouraged to take any non-regulated materials removed from this project to a recycling center.

3.2 Execution

1. All existing pavements, structures, or other surfaces shall be saw-cut at removal limits. The contractor shall take special precautions to ensure saw dust or water used during sawing does not enter the pollute the adjacent river, creek, or lakes.

2. The Contractor shall erect temporary supports as needed in order to do any demolition required.

3. The Contractor shall erect temporary water dams, barriers, or diversions in order dewater the area in order to construct the additional improvements.

DIVISION 2 SECTION 02071

SITE WORK SELECTIVE DEMOLITION

02071-2

4. The Contractor shall take precautions to insure that the remaining structures are not damaged. Any damage to the structure shall be repaired at the Contractor's expense.

5. Areas disturbed by the demolition which are not incor-porated into the new work shall be restored to their original condition or better, even if the original condition was poor.

(END OF SECTION 02071)

DIVISION 2 SECTION 02200

SITE WORK EXCAVATION, TRENCHING AND BACKFILLING

02200-1

1.1 General

A. The requirements of this section shall include the excavation, dewatering, dredging, backfilling, compaction, and grading necessary for the installation of the improvements as shown on the drawings and as specified herein.

B. The Contractor shall have the local utility field mark utility locations and verify location of existing utilities prior to excavation.

C. The Contractor shall design and construct a dewatering system in order to keep all excavations free of water.

D. The Contractor shall compact all locations disturbed by construction operations to eliminate voids and settling.

E. The Contractor shall grade all areas excavated or otherwise disturbed by the construction activities to a smooth surface, free of holes or lumps and sloped to drain away from buildings and equipment.

F. All equipment to be used on-site shall be washed prior to arrival to prevent the spread of invasive species.

1.2 Submittals

A. Granular Material: Submit Gradation, Material

Certification, and Stockpile location.

B. Sheet Piling/Dewatering Plan: Submit plan for temporary sheet piling, cofferdams, and dewatering system.

C. Test Report: Provide successful compaction tests reports prior to submitting for progress payment.

PART 2 – PRODUCTS

2.1 Materials

02200-2

A. Embankment material: All excavations going through roadways shall be backfilled with new Granular Material.

All excavated materials not suitable for backfill shall be removed and disposed of off-site.

B. Granular Material: Granular material furnished and used in the work shall consist of natural sand or a mixture of sand with gravel, crushed gravel, or crushed stone.

Granular material shall meet the Minnesota Department of Transportation specification (Class V). No recycled concrete, slag, or other materials will be allowed

PART 3 – EXECUTION

3.1 Execution

A. Pipe Trench Excavation

1. All trench areas shall be excavated and free (stripped) of any gravel, topsoil, or vegetation.

2. Over-excavation below grade shall be corrected by replacing and compacting with granular material to 100 percent of Standard Proctor density.

3. Slopes: Excavated to at least the angle of repose and as required by the State or OSHA, whichever is more restrictive. Brace, shore, and otherwise support excavations in order to protect property and provide worker safety.

4. Drive temporary sheet piling and use other means to create cofferdams if needed to excavate the area around the landing. Design and install dewatering systems as required to install improvements. Dredge material within 10’ of the end of the proposed landing to just below the elevation of the bottom of the proposed landing.

5. Pile excavated material in a manner that will not endanger work or pollute the adjacent waters.

Remove excavated materials from the site prior to

02200-3 the end of each day.

6. Trenches: Dewater trenches using wells, pumps, or or other means as necessary to excavate trench and install improvements. Hold ground water level to a minimum 2 feet below bedding.

7. Direct surface and groundwater discharges to natural drainage channels or drains downstream of water control structure. Provide energy dissipation at discharge point of dewatering wells or points (if used). Provide dewatering sedimentation basins at discharge point of trench sump pump or provide filter bag to trap sediment and other pollutants from entering creek.

8. Over-excavate when bottom of trench contains unstable or unsuitable material. Bring excavation up to grade with compacted granular material.

Notify COR of soil conditions which may be poor bearing capacity and when organic soils are encountered. Install additional rock stabilization when necessary.

9. Provide temporary support, remove, relocate, or reconstruct existing utilities located within trench excavation. Utility owner shall designate method employed. Use care and provide compacted fill or other stable support for utility crossings to prevent displacement, rupture, or failure.

10. Excavate to expose existing utilities that cross in close proximity to new pipe line to determine utilities' location ahead of pipe installation to avoid grade conflict. Measure to determine utilities' location relative to new pipe line location. Deviation from alignment, grade, and location to avoid conflict may be ordered by the Engineer. Plan work with Engineer at preconstruction conference and coordinate activities during course of work.

02200-4

11. All excavations shall comply with OSHA 29CFR1926- Subpart P – Excavations.

B. Backfill

1. Backfill with granular materials.

2. Granular material shall be placed in uniform depth layers not exceeding a loose depth of 8-inches and shall be compacted over the entire width Backfill not meeting the requirement shall be excavated and recompacted.

3. Hand operated compaction equipment only, will be permitted in all excavations. Vibrating Plate compactors can be used instead of “jumping jack” type compactors.

4. Compact granular materials to 95% of Modified

Proctor Density, per ASTM D 1557. Provide compaction test results to COR for each 8” layer of backfill. Testing shall be performed by a qualified testing company.

5. All trenches shall be excavated and shored as necessary, in accordance with OSHA requirements.

The trench shall be wide enough to permit operation of hand operated compaction equipment without damaging the pipes.

6. Excavated material not suitable or required for backfill shall be disposed of legally.

(END OF SECTION 02200)

DIVISION 2 SECTION 02210

SITE WORK EROSION CONTROL

02210-1

SECTION 02210 EROSION CONTROL

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Prevention of erosion due to construction activities.

B. Prevention of sedimentation of waterways, open drainage ways, and storm and sanitary sewers due to construction activities.

C. Restoration of areas eroded due to insufficient preventive measures.

1.02 RELATED REQUIREMENTS

A. Section 03 3000 - Cast-in-Place Concrete: Concrete for temporary and permanent erosion control structures indicated on drawings.

1.03 REFERENCE STANDARDS

A. ASTM D4355 - Standard Test Method for Deterioration of Geotextiles by Exposure to Light, Moisture, and Heat in a Xenon Arc Type Apparatus.

B. ASTM D4491 - Standard Test Methods for Water Permeability of Geotextiles by Permittivity.

C. ASTM D4533 - Standard Test Method for Trapezoid Tearing Strength of Geotextiles.

D. ASTM D4632 - Standard Test Method for Grab Breaking Load and Elongation of Geotextiles.

E. ASTM D4751 - Standard Test Method for Determining Apparent Opening Size of a Geotextile.

F. ASTM D4873 - Standard Guide for Identification, Storage, and Handling of Geosynthetic Rolls and Samples.

G. EPA (NPDES) - National Pollutant Discharge Elimination System (NPDES), Construction General Permit.

H. FHWA FLP-94-005 - Best Management Practices for Erosion and Sediment Control; Federal Highway Administration.

1.04 PERFORMANCE REQUIREMENTS

A. Comply with all requirements of U.S. Environmental Protection Agency for erosion and sedimentation control, as specified for the National Pollutant Discharge Elimination System (NPDES), Phases I and II, under requirements for the 2003 Construction General Permit (CGP), whether the project is required by law to comply or not.

02210-2

B. Best Management Practices Standard: Federal Highway Administration Best Management Practices for Erosion and Sediment Control.

C. Develop and follow an Erosion and Sedimentation Prevention Plan and submit periodic inspection reports.

D. Do not begin clearing, grading, or other work involving disturbance of ground surface cover until applicable permits have been obtained; furnish all documentation required to obtain applicable permits.

E. Timing: Put preventive measures in place as soon as possible after disturbance of surface cover and before precipitation occurs.

F. Storm Water Runoff: Control increased storm water runoff due to disturbance of surface cover due to construction activities for this project.

1. Prevent runoff into storm and sanitary sewer systems, including open drainage channels, in excess of actual capacity or amount allowed by authorities having jurisdiction, whichever is less.

2. Anticipate runoff volume due to the most extreme short term and 24-hour rainfall events that might occur in 25 years.

G. Erosion On Site: Minimize wind, water, and vehicular erosion of soil on project site due to construction activities for this project.

1. Control movement of sediment and soil from temporary stockpiles of soil.

2. Prevent development of ruts due to equipment and vehicular traffic.

3. If erosion occurs due to non-compliance with these requirements, restore eroded areas at no cost to US Fish And Wildlife Service.

H. Erosion Off Site: Prevent erosion of soil and deposition of sediment on other properties caused by water leaving the project site due to construction activities for this project.

1. Prevent windblown soil from leaving the project site.

2. Prevent tracking of mud onto public roads outside site.

3. Prevent mud and sediment from flowing onto sidewalks and pavements.

4. If erosion occurs due to non-compliance with these requirements, restore eroded areas at no cost to US Fish And Wildlife Service.

02210-3

I. Sedimentation of Waterways On Site: Prevent sedimentation of waterways on the project site, including rivers, streams, lakes, ponds, open drainage ways, storm sewers, and sanitary sewers.

1. If sedimentation occurs, install or correct preventive measures immediately at no cost to US Fish And Wildlife Service; remove deposited sediments; comply with requirements of authorities having jurisdiction.

2. If sediment basins are used as temporary preventive measures, pump dry and remove deposited sediment after each storm.

J. Sedimentation of Waterways Off Site: Prevent sedimentation of waterways off the project site, including rivers, streams, lakes, ponds, open drainage ways, storm sewers, and sanitary sewers.

1. If sedimentation occurs, install or correct preventive measures immediately at no cost to US Fish And Wildlife Service; remove deposited sediments; comply with requirements of authorities having jurisdiction.

K. Open Water: Prevent standing water that could become stagnant.

L. Maintenance: Maintain temporary preventive measures until permanent measures have been established.

1.05 SUBMITTALS

A. See Section 01 3000 - Administrative Requirements, for submittal procedures.

B. Erosion and Sedimentation Control Plan:

1. Include:

a. Site plan identifying soils and vegetation, existing erosion problems, and areas vulnerable to erosion due to topography, soils, vegetation, or drainage.

b. Site plan showing grading; new improvements;

temporary roads, traffic accesses, and other temporary construction; and proposed preventive measures.

c. Where extensive areas of soil will be disturbed, include storm water flow and volume calculations, soil loss predictions, and proposed preventive measures.

d. Schedule of temporary preventive measures, in relation to ground disturbing activities.

e. Other information required by law.

f. Format required by law is acceptable, provided any additional information specified is also included.

02210-4

2. Obtain the approval of the Plan by authorities having jurisdiction.

3. Obtain the approval of the Plan by US Fish And Wildlife Service.

C. Certificate: Mill certificate for silt fence fabric attesting that fabric and factory seams comply with specified requirements, signed by legally authorized official of manufacturer; indicate actual minimum average roll values; identify fabric by roll identification numbers.

D. Inspection Reports: Submit report of each inspection;

identify each preventive measure, indicate condition, and specify maintenance or repair required and accomplished.

PART 2 PRODUCTS

2.01 MATERIALS

A. Grass Seed For Temporary Cover: Select a species appropriate to climate, planting season, and intended purpose. If same area will later be planted with permanent vegetation, do not use species known to be excessively competitive or prone to volunteer in subsequent seasons.

Ensure seed is at least 98% weed free.

B. Silt Fence Fabric: Polypropylene geotextile resistant to common soil chemicals, mildew, and insects; non-biodegradable; in longest lengths possible; fabric including seams with the following minimum average roll lengths:

1. Average Opening Size: 30 U.S. Std. Sieve, maximum, when tested in accordance with ASTM D4751.

2. Permittivity: 0.05 sec^-1, minimum, when tested in accordance with ASTM D4491.

3. Ultraviolet Resistance: Retaining at least 70 percent of tensile strength, when tested in accordance with ASTM D4355 after 500 hours exposure.

4. Tensile Strength: 100 lb-f, minimum, in cross-machine direction; 124 lb-f, minimum, in machine direction;

when tested in accordance with ASTM D4632.

5. Elongation: 15 to 30 percent, when tested in accordance with ASTM D4632.

6. Tear Strength: 55 lb-f, minimum, when tested in accordance with ASTM D4533.

7. Color: Manufacturer's standard, with embedment and fastener lines preprinted.

C. Silt Fence Posts: One of the following, minimum 5 feet long:

02210-5

1. Steel U- or T-section, with minimum mass of 1.33 lb per linear foot.

D. Gravel: See Section 32 1123 for aggregate.

PART 3 EXECUTION

3.01 EXAMINATION

A. Examine site and identify existing features that contribute to erosion resistance; maintain such existing features to greatest extent possible.

3.02 PREPARATION

A. Schedule work so that soil surfaces are left exposed for the minimum amount of time.

3.03 SCOPE OF PREVENTIVE MEASURES

A. In all cases, if permanent erosion resistant measures have been installed temporary preventive measures are not required.

B. Construction Entrances: Traffic-bearing aggregate surface.

1. Width: As required; 20 feet, minimum.

2. Length: 50 feet, minimum.

3. Provide at each construction entrance from public right-of-way.

4. Where necessary to prevent tracking of mud onto right-of-way, provide wheel washing area out of direct traffic lane, with drain into sediment trap or basin.

C. Linear Sediment Barriers: Made of silt fences.

1. Provide linear sediment barriers:

a. Along downhill perimeter edge of disturbed areas, including soil stockpiles.

2. Space sediment barriers with the following maximum slope length upslope from barrier:

a. Slope of Less Than 2 Percent: 100 feet..

b. Slope Between 2 and 5 Percent: 75 feet.

c. Slope Between 5 and 10 Percent: 50 feet.

d. Slope Between 10 and 20 Percent: 25 feet.

e. Slope Over 20 Percent: 15 feet.

D. Storm Drain Curb Inlet Sediment Trap: Protect each curb inlet using one of the following measures:

1. Filter fabric wrapped around hollow concrete blocks blocking entire inlet face area; use one piece of fabric wrapped at least 1-1/2 times around concrete blocks and secured to prevent dislodging; orient cores of blocks so runoff passes into inlet.

02210-6

2. Straw bale row blocking entire inlet face area; anchor into pavement.

E. Storm Drain Drop Inlet Sediment Traps: As detailed on drawings.

F. Temporary Splash Pads: Stone aggregate over filter fabric;

size to suit application; provide at downspout outlets and storm water outlets.

G. Soil Stockpiles: Protect using one of the following measures:

1. Cover with polyethylene film, secured by placing soil on outer edges.

2. Cover with mulch at least 4 inches thickness of pine needles, sawdust, bark, wood chips, or shredded leaves, or 6 inches of straw or hay.

H. Mulching: Use only for areas that may be subjected to erosion for less than 6 months.

I. Temporary Seeding: Use where temporary vegetated cover is required.

3.04 INSTALLATION

A. Traffic-Bearing Aggregate Surface:

1. Excavate minimum of 6 inches.

2. Place geotextile fabric full width and length, with minimum 12 inch overlap at joints.

3. Place and compact at least 6 inches of 1.5 to 3.5 inch diameter stone.

B. Silt Fences:

1. Store and handle fabric in accordance with ASTM D4873.

2. Where slope gradient is less than 3:1 or barriers will be in place less than 6 months, use nominal 16 inch high barriers with minimum 36 inch long posts spaced at 6 feet maximum, with fabric embedded at least 4 inches in ground.

3. Where slope gradient is steeper than 3:1 or barriers will be in place over 6 months, use nominal 28 inch high barriers, minimum 48 inch long posts spaced at 6 feet maximum, with fabric embedded at least 6 inches in ground.

4. Where slope gradient is steeper than 3:1 and vertical height of slope between barriers is more than 20 feet, use nominal 32 inch high barriers with woven wire reinforcement and steel posts spaced at 4 feet maximum, with fabric embedded at least 6 inches in ground.

02210-7

5. Install with top of fabric at nominal height and embedment as specified.

6. Do not splice fabric width; minimize splices in fabric length; splice at post only, overlapping at least 18 inches, with extra post.

7. Fasten fabric to steel posts using wire, nylon cord, or integral pockets.

8. Wherever runoff will flow around end of barrier or over the top, provide temporary splash pad or other outlet protection; at such outlets in the run of the barrier, make barrier not more than 12 inches high with post spacing not more than 4 feet.

C. Temporary Seeding:

1. When hydraulic seeder is used, seedbed preparation is not required.

2. When surface soil has been sealed by rainfall or consists of smooth undisturbed cut slopes, and conventional or manual seeding is to be used, prepare seedbed by scarifying sufficiently to allow seed to lodge and germinate.

3. If temporary mulching was used on planting area but not removed, apply nitrogen fertilizer at 1 pound per 1000 sq ft.

4. On soils of very low fertility, apply 10-10-10 fertilizer at rate of 12 to 16 pounds per 1000 sq ft.

5. Incorporate fertilizer into soil before seeding.

6. Apply seed uniformly; if using drill or cultipacker seeders place seed 1/2 to 1 inch deep deep.

7. Irrigate as required to thoroughly wet soil to depth that will ensure germination, without causing runoff or erosion.

8. Repeat irrigation as required until grass is established.

3.05 MAINTENANCE

A. Inspect preventive measures weekly, within 24 hours after the end of any storm that produces 0.5 inches or more rainfall at the project site, and daily during prolonged rainfall.

B. Repair deficiencies immediately.

C. Silt Fences:

1. Promptly replace fabric that deteriorates unless need for fence has passed.

2. Remove silt deposits that exceed one-third of the height of the fence.

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3. Repair fences that are undercut by runoff or otherwise damaged, whether by runoff or other causes.

D. Clean out temporary sediment control structures weekly and relocate soil on site.

E. Place sediment in appropriate locations on site; do not remove from site.

3.06 CLEAN UP

A. Remove temporary measures after permanent measures have been installed, unless permitted to remain by COTR.

B. Clean out temporary sediment control structures that are to remain as permanent measures.

C. Where removal of temporary measures would leave exposed soil, shape surface to an acceptable grade and finish to match adjacent ground surfaces.

END OF SECTION

DIVISION 2 SECTION 02600

SITEWORK AGGREGATE BASE

02600-1

PART 1 - GENERAL

1.1 Summary

A. Work covered under this Section includes providing all materials, equipment, and labor necessary to construct base materials for roads and structures.

1.2 REFERENCES

A. American Society for Testing and Materials, Current Edition, hereafter referred to as ASTM.

B. Minnesota Department of Transportation Standard Specifications for Construction, Latest Edition, hereafter referred to as MNDOT Standard Specifications.

1.3 SUBMITTALS

A. Aggregate for Base and Surfaces: Submit Gradation, Material Certification, and Stockpile location.

B. Test Reports: Provide successful Aggregate compaction test reports prior to submitting progress payment.

PART 2: PRODUCTS

2.1 AGGREGATE BASE

A. Aggregate base materials shall conform to the requirements of MNDOT Specification, Section 3138, Class 5. No recycled concrete, slag, or other materials may be used.

B. Aggregate surface materials shall conform to the requirements of MNDOT Specification, Section 3138, Class 1.

No recycled concrete, slag, or other materials may be used

PART 3: EXECUTION

3.1 REMOVAL

A. Removal areas shall be prepared to the lines and grades as shown in the drawings.

3.2 AGGREGATE BASE

A. Install 6” of new aggregate base material, as necessary, to obtain a nice smooth, even base for existing roadway

DIVISION 2 SECTION 02600

SITEWORK AGGREGATE BASE

02600-2 repair, new roadways, and concrete structure construction.

Compact base to 95% of Modified Proctor Density, ASTM D 1557. Base material density shall be tested approximately every 50 feet along sub-base. Add Aggregate surface material for the final inch.

3.3 FIELD QUALITY CONTROL

A. The CONTRACTOR shall establish and maintain quality control for Work covered under this Section to assure compliance with the contract requirements, including compaction test results as requested by GOVERNMENT. The CONTRACTOR shall employ a qualified testing agency to perform compaction testing. Testing shall be accomplished as shown above.

(END OF SECTION 02600)

DIVISION 3 SECTION 03300

CONCRETE CAST-IN-PLACE CONCRETE

03300 - 1

SECTION 03300 - CAST-IN-PLACE CONCRETE

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

B. All concrete work not specifically covered by these specifications shall conform to ACI Standard Building Code Requirements for Reinforced Concrete (ACI 318-77).

1.2 SUMMARY

A. Section includes cast-in-place concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, and finishes, for the following:

1. Concrete Boat Landing.

B. Related Sections:

1. Division 2 Section "Excavation & Base Aggregates".

1.3 DEFINITIONS

A. Cementitious Materials: Portland cement Type I, IA, III, or IIIA conforming to the requirements of ASTM C-150.

1.4 SUBMITTALS

A. Design Mixtures: The 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 and supplier shall not be changed throughout concrete placement unless a new mix design and supplier are approved.

03300 - 2

1. Indicate amounts of mixing water to be withheld for later addition at Project site.

B. Steel Reinforcement Shop Drawings: Placing drawings that detail fabrication, bending, and placement. Include bar sizes, lengths, material, grade, bar schedules, stirrup spacing, bent bar diagrams, bar arrangement, splices and laps, mechanical connections, tie spacing, hoop spacing, and supports for concrete reinforcement.

C. Material Certificates: For each of the following:

1. Cementitious materials.

2. Admixtures.

3. Steel reinforcement and accessories.

1.5 QUALITY ASSURANCE

A. Installer Qualifications: A qualified installer who employs Project personnel who are qualified as ACI-certified Flatwork Technicians and Finishers and a supervisor who is an ACI-certified Concrete Flatwork Technician.

B. Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment.

1. Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete Production Facilities."

PART 2 - PRODUCTS

2.1 REINFORCEMENT ACCESSORIES

A. Reinforcing steel bars shall conform to the requirements of ASTM A-615, grade 60, latest revision.

B. Welded wire fabric shall be fabricated from cold drawn steel wire conforming to either ASTM A-82 (smooth wire) or ASTM A-496 (deformed wire), latest revisions. The wires shall be welded at right angles to form a rectangular grid

03300 - 3 in accordance with the requirements of ASTM A-185 and A- 497, latest revision. (6x6 W4.0/4.0 min)

2.2 CONCRETE MATERIALS

A. Cementitious Material: Use the following cementitious materials, of the same type, brand, and source, throughout Project:

1. Portland Cement: ASTM C 150, Type I, IA, III, or

IIIA.

B. Normal-Weight Aggregates: ASTM C 33, coarse aggregate or better, graded. Provide aggregates from a single source

1. Maximum Coarse-Aggregate Size: 1 inch nominal.

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

C. Water: ASTM C 94/C 94M and potable.

2.3 ADMIXTURES

A. Air-Entraining Admixture: ASTM C 260.

B. Chemical Admixtures: Provide admixtures certified by manufacturer to be compatible with other admixtures and that will not contribute water-soluble chloride ions exceeding those permitted in hardened concrete. Do not use calcium chloride or admixtures containing calcium chloride.

1. Water-Reducing Admixture: ASTM C 494/C 494M, Type A.

2.4 CONCRETE MIXTURES

A. Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: 4500 psi at 28 days.

2. Maximum Water-Cementitious Materials Ratio: 0.45

3. Slump Limit: 2-4 inches.

4. Air Entrainment Admixture-ASTM C-260

5. Air Content %: 5-8%

03300 - 4

PART 3 - EXECUTION

3.1 FORMWORK

A. Provide clean, sturdy, and suitable forms to ensure concrete is poured to the lines and grades specified.

B. Clean forms and adjacent surfaces to receive concrete.

Remove chips, wood, sawdust, dirt, and other debris just before placing concrete.

C. Coat contact surfaces of forms with form-release agent, according to manufacturer's written instructions, before placing reinforcement.

3.2 STEEL REINFORCEMENT

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

B. Clean reinforcement of loose rust and mill scale, earth, ice, and other foreign materials that would reduce bond to concrete.

C. Accurately position, support, and secure reinforcement against displacement. Locate and support reinforcement with bar supports to maintain minimum concrete cover. Do not tack weld crossing reinforcing bars. Place wire mesh on suitable metal chairs to ensure minimum cover.

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

3.3 JOINTS

A. Control Joints: Install control joints true to line with faces perpendicular to surface plane of concrete as specified on the drawings.

B. Expansion Joints: Install expansion joints at locations specified on the drawings.

03300 - 5

3.4 CONCRETE PLACEMENT

A. Before placing concrete, verify that installation of formwork, reinforcement, and embedded items is complete and that required inspections have been performed.

B. Do not add water to concrete during delivery, at Project site, or during placement unless approved by Government.

C. Deposit concrete continuously in one layer or in horizontal layers of such thickness that no new concrete will be placed on concrete that has hardened enough to cause seams or planes of weakness. If a section cannot be placed continuously, provide construction joints as indicated. Deposit concrete to avoid segregation.

D. The contractor shall broom finish all concrete not otherwise specified to be grooved, tooled, or other special finish.

3.5 CONCRETE PROTECTING AND CURING

A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures.

B. Comply with ACI 306.1 for cold-weather protection.

C. Curing shall be by covering the concrete surfaces with impermeable sheets of polyethylene material with joints lapped and sealed to make watertight. No chemical curing compounds shall be used.

3.6 TESTING

A. Testing Agency: Contractor must engage a qualified independent testing and inspecting agency to perform field tests and inspections and to prepare test reports.

B. Testing Frequency: Contractor shall take concrete cylinders once daily during concrete construction. Air and slump tests shall be taken every 20 cubic yards of concrete placed. All costs for concrete testing shall be included in the contractors bid/proposal.

03300 - 6

3.7 FINISHING

A. Formed Surfaces: Immediately after the removal of forms, all bulges and projections on portions of concrete which will be exposed shall be removed by chipping or tooling and the surface rubbed or ground. All honeycombed and defective areas shall be chipped out to solid concrete with edges cut at right angles to the surface. All cavities shall be filled with a grout of cement and fine aggregate in the same proportion as the adjacent concrete.

Immediately before filling, the cavity shall be brushed with a slurry of neat cement.

B. Horizontal Surfaces and Slabs: For slabs in wet locations, the Contractor shall be particularly careful to provide an adequate slope to the drains or to suitable points of disposal.

C. Boat Landing Finish: Concrete landings shall be grooved as per the details shown on the drawings.

END OF SECTION 03300