J03 TECHNICAL SPECIFICATIONS - Miller Heights Sewer Replacement (signed).pdf

MILLER HEIGHTS SEWER MAIN REPLACEMENT

IHS PROJECT PO-20-M96

CONFEDERATED TRIBES OF WARM SPRINGS

INDIAN RESERVATION

JEFFERSON COUNTY, OREGON

TECHNICAL SPECIFICATIONS

INDIAN HEALTH SERVICE

OFFICE OF ENVIRONMENTAL HEALTH

AND ENGINEERING

PORTLAND AREA OFFICE

WESTERN OREGON FIELD OFFICE

FEBRUARY 2020

TYLER TIMMONS

ENVIRONMENTAL ENGINEER

(503) 414-7786

CONFEDERATED TRIBES OF WARM SPRINGS MILLER HEIGHTS SEWER MAIN REPLACEMENT

SECTION 00 01 10 - TABLE OF CONTENTS PAGE 1 OF 1

SECTION 00 01 10

TABLE OF CONTENTS

VOLUME I – Specifications Divisions 0 – Divisions 48 VOLUME II – Contract Drawings

VOLUME I

Division 00 – Procurement and Contracting Requirements 00 01 10 Table of Contents

Division 01 – General Requirements 01 11 00 Summary of Work 01 27 00 Price and Payment 01 31 00 Project Management and Coordination 01 33 00 Submittal Procedures 01 42 00 References 01 43 00 Quality Assurance/Quality Control 01 50 00 Temporary Facilities and Controls 01 77 00 Closeout Procedures 01 78 00 Closeout Submittals

Division 31 – Earthwork 31 23 10 Excavation, Trenching and Backfill 31 25 00 Erosion and Sedimentation Controls

Division 33 – Utilities 33 01 31 Temporary Sewer Bypass 33 30 00 Sanitary Sewerage

The specifications listed above have been prepared under the direction of the Professional Engineer, registered in the State of Oregon, whose seal and signature appear below:

SECTION 01 11 00 – SUMMARY OF WORK PAGE 1 OF 3

SECTION 01 11 00

SUMMARY OF WORK

PART 1 - GENERAL

1.01 SUMMARY

A. The work to be performed under this contract shall consist of furnishing the following to perform the work outlined in these specifications and as indicated by Project Drawings:

1. tools

2. equipment

3. materials

4. labor

5. supplies

6. manufactured articles

7. all transportation to complete the work

8. temporary facilities

B. Location of Work: Warm Springs, Warm Springs Reservation, Jefferson County, Oregon

C. Incidentals Items: All work, materials, and services not expressly listed as being provided by others or not expressly called for in the contract but are necessary for the completion of the work in good faith, shall be furnished, installed, and performed by the Contractor.

1.02 WORK REQUIRED

A. Furnish all labor, materials, equipment, and supervision necessary to construct the following facilities as described by these specifications and drawings. All work, materials, and services not expressly listed as being provided by others or that are called for in the contract or necessary to provide a complete and operational system will be furnished, installed, and performed by the contractor.

B. Description of Work: This project proposes to make specific improvements to the Miller Heights Community Sewage Collection System. The proposed improvements include:

1. Cleanup of soils contaminated with raw sewage.

2. Replacement of failed 8” wood stave sewer main with 8” PVC sewer main.

3. Install adapters and necessary pipe support structures to firmly connect the new 8” PVC sewer main to the existing manholes.

C. Sewer Main Replacement is shown on the drawings.

SECTION 01 11 00 – SUMMARY OF WORK PAGE 2 OF 3

1.03 SITE CONDITIONS

A. Utilities

1. Known buried utilities are shown on the drawings as an indication as to what the contractor may encounter, NOT FOR LOCATION PURPOSES. Locations, material, and sizes of any shown are approximate and not meant as a complete representation. Contractor must obtain exact locations. Known utilities are:

a. Water and Sewer, Warm Springs Public Works, https://warmsprings-nsn.gov/program/public-utilities-branch/

2. Protect existing utilities during construction.

3. Immediately notify project engineer and the utility owner of any damaged utilities.

4. Any and all damage that results from work under this contract shall be promptly repaired at the expense of the Contractor (exception is utilities owned and located incorrectly by the Tribe. Contractor will repair damage and be reimbursed for costs.)

B. Roads

1. ODOT Headquarters – Bend 63055 North Highway 97 Bend, OR 97703 Phone: 541-388-6180 Fax: 541-388-6231

2. Bureau of Indian Affairs, https://www.bia.gov/regional-offices/northwest/warm-springs-agency

3. Warm Springs Public Works, https://warmsprings-nsn.gov/program/public-utilities-branch/

C. Tribal Employment Rights Ordinance (TERO)

1. Contractor must comply with the Warms Springs TERO. Visit https://warmsprings-nsn.gov/program/tribal-employment-rights-office/ to contact Warm Springs TERO and obtain the necessary forms.

D. Rights-of-Way

1. All the work will be performed within existing rights-of-way of the Warm Springs Tribe.

E. Site Ownership

1. The construction site is entirely located inside the Warm Springs Indian Reservation and on the land controlled by the Warm Springs Tribe.

https://warmsprings-nsn.gov/program/public-utilities-branch/ https://warmsprings-nsn.gov/program/public-utilities-branch/ https://www.bia.gov/regional-offices/northwest/warm-springs-agency https://www.bia.gov/regional-offices/northwest/warm-springs-agency https://warmsprings-nsn.gov/program/public-utilities-branch/ https://warmsprings-nsn.gov/program/public-utilities-branch/ https://warmsprings-nsn.gov/program/tribal-employment-rights-office/

SECTION 01 11 00 – SUMMARY OF WORK PAGE 3 OF 3

1.04 SEQUENCE OF WORK

A. The Contractor shall construct in phases or stages to accommodate continuous and uninterrupted operation of the existing facility. The Contractor shall coordinate the construction schedule and operations with the Project Engineer. The contractor shall submit a schedule for construction in accordance with Section 01 31 00.

END OF SECTION

SECTION – 01 27 00 PRICE AND PAYMENT PAGE 1 of 3

SECTION 01 27 00

PRICE AND PAYMENT

PART 1 - GENERAL

1.01 SUMMARY

A. Work covered by this section includes method of measurement and basis of payment for all divisions included.

B. All measurements and payments will be based on completed and accepted work performed in strict accordance with the drawings and specifications.

C. Respective prices and payment shall constitute full compensation for all work completed including incidentals.

D. Record drawings must be current and be inspected by the project engineer before progress payments will be approved.

E. An updated project construction schedule is required before progress payments will be approved.

PART 2 – BID SCHEDULE ITEMS

2.01 GENERAL

A. Payment shall be full compensation to complete the work items in good faith, including incidental work.

B. Payment shall be full compensation for the following:

1. labor

2. materials

3. equipment

4. tools

5. testing equipment

6. General Requirements in Division 01.

a. submittals

b. record drawings

c. temporary facilities and treatments

d. operation and maintenance manuals

e. operational testing and operator training

SECTION – 01 27 00 PRICE AND PAYMENT PAGE 2 of 3

2.02 BID ITEMS

A. SCHEDULE

1. Mobilization:

a. Measurement: Job

b. Basis of Payment: Payment shall cover the cost of equipment and labor to move equipment to and from the job site. Payment shall also cover contractor expenses related to bonds, insurance, permits, coordination, and any other incidental items not otherwise paid under other bid items.

2. Removal and Disposal of Contaminated Soils:

a. Measurement: Cubic Yards

b. Basis for Payment: Includes all labor, tools, equipment, and materials required to remove and dispose of all contaminated soils, and all other items scheduled for removal. Including pipe caps, backfilling, trenching equipment, compaction of soils, and all other items required to complete the work as specified.

3. Temporary Erosion and Sediment Control:

a. Measurement: Lump Sum

b. Basis for payment: Payment shall be full compensation for installing and maintaining erosion and sediment control measures including those identified in the contract drawings, as well as additional measures needed to prevent sediment from leaving the construction site. Preparation of a Storm Water Pollution Prevention Plan, and application for a Construction General Permit shall be incidental.

4. Temporary Sewage Bypass Pumping:

b. Basis for Payment: Payment shall be full compensation for furnishing and maintaining temporary pumping equipment, piping, and structures to divert sewage flows around the work area as needed to maintain sewer service while completing other work.

5. Connections to Existing Manholes:

a. Measurement: Each

b. Basis for Payment: Includes all labor, tools, equipment, and materials required to remove all unwanted debris within the manhole, including trash

SECTION – 01 27 00 PRICE AND PAYMENT PAGE 3 of 3 and concrete, potential excavation, installation of concrete pipe to PVC adapters, and necessary support structures.

6. PVC Sanitary Sewer Pipe, 8 In. Diam.:

a. Measurement: Per lineal foot of trench excavated for pipe installation and pipe installed.

b. Basis for Payment: Payment shall be full compensation to furnish and install pipe to the lines and grades indicated on the contract drawings and for excavating, bedding, backfilling, and compacting trenches for pipe installation. Measurement shall be along the centerline of the pipe installed.

Imported bedding material shall be incidental to this bid item. Field verification of existing utilities and clearing and grubbing shall be incidental to this item.

7. Fencing Repairs and Site Restoration:

b. Basis for Payment: Includes all labor, tools, equipment and materials required to install any removed fencing and restore all areas disturbed by construction as specified.

SECTION 01 31 00 - PROJECT MANAGEMENT AND COORDINATION PAGE 1 of 2

SECTION 01 31 00

PROJECT MANAGEMENT AND COORDINATION

A. Section includes the preconstruction conference, construction scheduling and coordination requirements.

B. Costs associated with project management and coordination are incidental to the contract work and are included in the contract unit and lump sum costs.

1.02 PRE-CONSTRUCTION CONFERENCE AND PROGRESS MEETINGS

A. Prior to beginning construction, but following contract award, the Contractor, Subcontractors and other interested parties must participate in a Preconstruction Conference.

B. Periodically throughout the contract performance period, the Contractor and

Subcontractors shall avail themselves to project progress meetings. These meetings shall be held as often as the parties determine is necessary, but will be at least once every other month (bimonthly).

C. Representatives from the following shall attend each meeting:

1. Prime Contractor

2. Subcontractors

3. Contracting Officer

4. Project Engineer and Inspector

5. Tribal Project Manager

D. Contractor is responsible for notifying Subcontractors of meeting time and date.

1.03 CONSTRUCTION SCHEDULE

A. Present to the contracting officer a written preliminary construction schedule in the form of a “critical path” diagram or equivalent chart showing the following as a minimum (all times referenced to calendar dates):

1. activity

2. activity description

3. duration

B. Review of the schedule by the Engineer shall not constitute endorsement of the

Contractor’s approach, means, methods sequences or procedures nor shall it constitute assignment of the Contractor’s responsibility to provide superintendence and project management.

SECTION 01 31 00 - PROJECT MANAGEMENT AND COORDINATION PAGE 2 of 2

C. Provide the Engineer with a revised schedule whenever major changes occur to the schedule.

1.04 WEEKLY ACTIVITY SCHEDULE

A. Provide the Engineer with a written weekly activity schedule (facsimile or email is acceptable) indicating planned activities, locations, and approximate schedules.

B. Note the planned visits by manufacturer’s representatives, testing firms, or other site visitors that may be of significance to the Engineer.

C. Provide the weekly activity schedule to the engineer by noon on the last day of the workweek for activities during the following week.

SECTION 01 33 00 – SUBMITTAL PROCEDURES PAGE 1 OF 3

SECTION 01 33 00

SUBMITTAL PROCEDURES

A. This section includes information on submittal procedures and general submittal requirements. Materials requiring submittal are listed in the appropriate specification section.

1.02 SUBMITTAL PROCEDURES

A. Submit three (3) original copies of submittals to the project engineer.

B. Identify each cut sheet or shop drawing with the following information:

1. Contact number.

2. Supplier

3. Specification section, plan sheet or detail drawing number to which the submittal pertains.

C. Submit the following information, as applicable, in accordance with the submittal requirements of each section.

1. Manufacturer’s cut sheets indicating compliance with references and standards (e.g. applicable ASTM, AWWA standards).

2. Laboratory results, as applicable.

3. Dimensional drawings or shop drawings, as applicable.

4. Other specific information required by the particular section of the specification.

D. Variations from Contract Documents or Products Specified:

1. Bring all submitted variations to the attention of the Project Engineer.

2. Variations not brought to the Project Engineer’s attention, in writing, and that conflict with the Contract Documents, do not relieve the contractor from the requirements of the contract documents.

E. Revisions and Resubmittal

1. Revise and resubmit submittals as required and identify all changes made since previous submittal.

SECTION 01 33 00 – SUBMITTAL PROCEDURES PAGE 2 OF 3

2. Engineer Obligations for Resubmittals:

a. The engineer will be obligated to review the original submittal and one resubmittal for each item requiring submittal.

b. Subsequent resubmittals will be at the Contractor’s expense, deducted from the subsequent partial pay request and ultimately credited to the contract via subsequent change order at an hourly rate at $60 per hour.

3. Incomplete submittals or rejected submittals that result in the need for the Contractor to resubmit cannot be grounds for a contract time expansion or equitable adjustment to contract price, unless the engineer did not meet the obligations outlined in Paragraph 1.02, Subparagraphs E and G.

F. Distribute copies of reviewed submittals to concerned parties, (i.e. suppliers, sub-contractors).

G. Submittal Time Requirements:

1. All submittals shall be made within 14 days after receipt of Notice to Proceed.

2. The Contractor should allow 10 days from receipt by the Owner for review and approval or rejection.

3. For each material re-submittal required, the Contractor should allow an additional 7 days from date of receipt by the Owner for review and approval or rejection.

4. Repeated resubmittals resulting from “Rejected” or “Incomplete Submittals” (as defined in Article 1.03) will not be grounds for a contract time expansion.

5. Lack of response does not constitute approval.

H. Approval Required Before Installation:

1. Approval of submittals must be provided by the Project Engineer prior to installation of materials.

2. Materials installed without written submittal approval will be at the Contractor’s risk, and may require removal, at no expense to the Owner or Government.

SECTION 01 33 00 – SUBMITTAL PROCEDURES PAGE 3 OF 3

1.03 DEFINITIONS

A. Approved: Deemed to be acceptable for use in accomplishing the requirements of the plans and specifications, but does not extend to the means, methods, or procedures of construction (except where specific means, methods, or procedures are specifically required by the contract documents) and does not imply approval of the system or construction in which the submitted item is a part. Approval does not relieve the Contractor of the obligation to meet the requirements of the contract documents.

B. Conditionally Approved: Deemed to be acceptable for use in accomplishing the requirements of the plans and specifications, if the conditions noted in the submittal approval letter are met. The approval does not extend to the means, methods, or procedures of construction (expect where specific means, methods, or procedures are specifically required by the contract documents) and does not imply approval of the system or construction in which the submitted item is a part. Conditional approval does not relieve the Contractor of the obligation to meet the requirements of the contract documents.

C. Rejected: Deemed unacceptable for the use for which it was submitted.

D. Incomplete Submittal: Information is insufficient to ascertain acceptability.

Neither approval nor rejection is implied.

SECTION 01 42 00 - REFERENCES PAGE 1 OF 2

SECTION 01 42 00

REFERENCES

A. This section includes a list of organizations, associations or appropriate agencies with jurisdiction that have references, standards, laws or regulations cited in these specifications.

B. Use latest revision of all references, standards, laws or regulations.

1.02 LIST OF ORGANIZATIONS, ASSOCIATIONS & AGENCIES

A. National Standards Organizations & Associations

American Association of State Highway and Transportation Officials (AASHTO) 444 North Capital Street NW, Suite 249 Washington DC, 20001

(202) 624-5800 www.aashto.org

American Concrete Institute (ACI) ACI International PO Box 9094 Farmington Hills, Michigan 48333-9094

(810) 848-3700 www.aci-int.org

American Society for Testing and Materials

(ASTM)

100 bar Harbor Drive West Conshohocken, Pa 19428-2959

(610) 832-9585 www.astm.org

American Water Works Association (AWWA) 6666 West Quincy Avenue Denver, CO 80235

(303) 794-7711 www.awwa.org

B. Federal Agencies

Environmental Protection Agency (EPA) U.S. EPA Region 10 1200 6th Avenue Seattle, WA 98101

(206) 553-1200 http://www.epa.gov/region10

Occupational Health and Safety Administration 1111 Third Avenue, Suite 715 Seattle, Washington 98101-3212

(206) 553-5930

(206) 553-6499 FAX

www.osha.gov

C. State Agencies

Oregon Department of Transportation (ODOT) 4040 Fairview Industrial Drive SE Salem, OR 97302-1142 Phone 541-388-6180 https://www.oregon.gov/odot/About/Pages/Contact-Us.aspx http://www.aashto.org/ http://www.aci-int.org/ http://www.astm.org/ http://www.awwa.org/ http://www.epa.gov/region10 http://www.osha.gov/ https://www.oregon.gov/odot/About/Pages/Contact-Us.aspx

SECTION 01 42 00 - REFERENCES PAGE 2 OF 2

PART 2 – PRODUCTS (N/A)

PART 3 – EXECUTION

3.01 STANDARD SPECIFICATION

A. Except as specified in these contract documents, all workmanship and materials shall be in accordance with the Oregon Standard Specifications for Construction, 2018 edition.

SECTION 01 43 00 – QUALITY

ASSURANCE/QUALITY CONTROL

SECTION 01 43 00

QUALITY ASSURANCE/QUALITY CONTROL

A. This section includes prerequisites and procedures to ensure the quality of the construction and to provide assurance that the Contractor is capable of meeting quality requirements.

B. The intent of all quality control requirements is that the Owner will be provided with a complete, properly functioning system upon completion.

C. The costs for Contractor Quality Assurance/Quality Control measures are incidental to the overall contract and are included in the applicable contract line items.

1.02 CONTRACTOR QUALIFICATIONS

A. The General Contractor performing work shall be registered in the State of Oregon for the type of construction and magnitude of construction being performed.

1.03 INSTALLER QUALIFICATIONS

A. Trade work shall be performed under the direct supervision of personnel licensed in the State of Oregon for the trade being performed.

1.04 CONTROL OF INSTALLATION

A. Inspect materials for acceptability when delivered to the site.

B. Store and handle materials to prevent damage.

C. Inspect materials, services, and workmanship to ensure that work is performed in accordance with the specifications.

D. Comply with manufacturers’ instructions.

E. Should manufacturers’ instructions conflict with contract documents, request clarification from Project Engineer before proceeding.

F. Correct defective work to the satisfaction of the Project Engineer.

1.05 SAMPLES

A. When requested by the Project Engineer, supply samples of materials proposed for use.

SECTION 01 43 00 – QUALITY

ASSURANCE/QUALITY CONTROL

1.06 WARRANTY

A. Provide a minimum one (1) year warranty for all materials and labor, covering defects in the materials or deficiencies resulting from contractor installation.

B. Provide additional warranties as required by specific sections.

SECTION 33 01 31 – TEMPORARY FACILITIES AND CONTROLS PAGE 1 OF 4

SECTION 01 50 00

TEMPORARY FACILITIES AND CONTROLS

A. The work covered by this section includes all temporary facilities and controls needed to complete work under the Contract in a manner that protects public safety and worker safety, that preserves both public and private property and that appropriately involves local governments, emergency and law enforcement.

1.02 RELATED WORK

A. Section 31 23 13 – Excavation, Trenching and Backfill

1.03 REFERENCES

A. Manual on Uniform Traffic Control Devices

PART 2 – PRODUCTS (NOT APPLICABLE)

PART 3 - EXECUTION

3.01 GENERAL

A. Provide temporary facilities and controls that are necessary to carry out the requirements of the Contract in a manner

1. That protects public safety and worker safety.

2. That preserves both private and public property.

3. That communicates and cooperates with local authorities and governments.

3.02 TEMPORARY WATER

A. Make arrangements with Warm Springs Department of Public Works to draw from nearby community system. Back flow protection will be required at all times. The Warm Springs Department of Public Works reserves the right to change for water taken from community system by the Contractor for this project.

SECTION 33 01 31 – TEMPORARY FACILITIES AND CONTROLS PAGE 2 OF 4

3.03 TEMPORARY SANITARY FACILITIES

A. Provide and maintain a chemical toilet meeting State and Tribal requirements for the use of all workers of all trades.

B. Place temporary facilities in an inconspicuous place and keep clean.

C. Remove temporary sanitary facilities after completion of the project.

3.04 BARRICADES & WARNING DEVICES

A. Notify local police, fire departments, and other emergency programs of any proposed barricading or detouring.

B. Erect and maintain barricades, guardrails, lights, and signs as necessary for public convenience and safety.

C. Ensure that barricades remain in place during critical hours.

D. Comply with “Occupational Safety and Health Act” and local safety requirements, as they apply.

3.05 TRAFFIC CONTROL

A. Conduct all traffic control operations in accordance with the latest issues of the

“Manual on Uniform Traffic Control Devices” (MUTCD).

B. Coordinate and obtain approval for all traffic control from local law enforcement.

C. Signs, Signals, and Devices:

1. Place warning signs in the region of the work.

2. Warn of types of conditions that may be encountered

a. Muddy Roads

b. Slippery Roads

c. Flagman

d. Detour

e. Slow Moving Traffic

f. Trucks Entering Roadway

3. Traffic Controls Signals: Meet the needs of the local government authority.

4. Traffic Cones and Drums, Flares, and Lights:

a. Meet the needs of the local jurisdictions.

b. Use flares and lights during hours of low visibility to delineate traffic lanes and to guide traffic.

c. Ensure that flares, lights, etc. remain in position throughout the night.

5. Flagman:

a. Meet the needs of the local jurisdictions.

SECTION 33 01 31 – TEMPORARY FACILITIES AND CONTROLS PAGE 3 OF 4

b. Provide trained and equipped flagman to regulate traffic when construction operations or traffic encroach on public traffic lanes.

D. Haul Routes:

1. Consult with authority having jurisdiction in establishing public Thoroughfares to be used for haul routes and site access.

2. Confine construction traffic to designated haul routes.

3. Provide traffic control at critical areas of haul routes to regulate traffic, to minimize interference with public traffic.

E. Removal of Traffic Control:

1. Remove equipment and devices when no longer required.

2. Repair damage caused by installation.

3.06 PARKING

A. The Contractor may park their own and employees’ vehicles on the site without charge with permission from the Owner.

B. If the site is not large enough, the Contractor shall make parking arrangements.

C. A locked gate will be available for overnight parking at the Warm Springs

Construction Enterprise, an Industrial Complex approximately a mile away.

D. Prevent interference with the flow of local traffic.

E. Prevent interference with emergency vehicle functions.

3.07 ROAD SURFACE MAINTENANCE

A. Remove mud and excavated spoils from the affected roadway at the end of each workday in order to preserve the roadways and maintain safe driving conditions.

B. No tracked machinery will be allowed on paved roadways.

C. Contractor is responsible for any costs associated with repairing the roadways that are damaged due to construction equipment.

3.08 WATER CONTROL

A. Grade site drain.

B. Protect site from puddling or running water.

C. Provide water barriers as required to protect site from soil erosion.

SECTION 33 01 31 – TEMPORARY FACILITIES AND CONTROLS PAGE 4 OF 4

3.09 SECURITY

A. The Owner will not be responsible for security on the site of work.

B. Each Contractor will be held responsible for loss or injury to persons or property where their work is involved.

C. Provide (if deemed necessary) such watchmen and take such other precautionary measures as deemed necessary to protect facilities during the contract period.

3.10 PROGRESS CLEANING

A. Maintain areas free of waste materials, debris, and rubbish. Maintain site in a clean and orderly condition.

B. Remove waste materials, debris, and rubbish from site weekly and dispose of off-site.

3.11 TEMPORARY FIRST AID FACILITIES

A. Provide temporary first aid facilities for employees in sufficient quantity for the number of workers.

3.12 TEMPORARY FIRE PROTECTION

A. Post fire department telephone numbers at the jobsite.

B. Keep fire extinguishers on the job that are appropriate for the type of work being performed.

SECTION 01 77 00 – CLOSEOUT PROCEDURES PAGE 1 OF 1

SECTION 01 77 00

CLOSEOUT PROCEDURES

A. Section includes information on closeout procedures and final cleaning.

1.02 RELATED WORK

A. Section 01 27 00 – Price and Payment

B. Section 01 43 00 – Quality Assurance/Quality Control

C. Section 01 78 00 – Closeout Submittals

1.03 CLOSEOUT PROCEDURES

A. Substantial Completion Process:

1. Provide the engineer certification that work is substantially complete and that facilities are ready for beneficial use by the Owner.

2. If the engineer concurs, the engineer will document a warranty date for substantially complete facilities.

B. Final Inspection:

1. Submit written certification that work is complete in accordance with contract documents and ready for final inspection at least five (5) calendar days prior to final inspection.

2. Perform and coordinate the final inspection with the engineer, representatives of the owner and other funding partners (i.e. funding agencies) involved in the project.

3. Final Punch List: Remaining deficiencies will be listed, in a written letter, from the Project Engineer.

4. Provide warranties and record documents (e.g. as-built drawings) to Project Engineer within ten (10) days of final inspection.

C. Final Completion: Final completion will be established once the final punch list deficiencies are remedied and applicable General and Contracting Requirements are met.

SECTION 01 78 00 – CLOSEOUT SUBMITTALS PAGE 1 OF 2

SECTION 01 78 00

CLOSEOUT SUBMITTALS

A. This section describes the requirements for closeout submittals including, record drawings, warranty information and general operation and maintenance information.

A. Section 01 43 00 –Quality Assurance/Quality Control

B. Section 01 77 00 – Closeout Procedures

1.03 DELIVERY

A. Provide all closeout submittals meeting these requirements and any specific requirements of each section.

B. All closeout submittals must be received in a correct and complete manner before final payment can be made.

1.04 DEFINITIONS

A. Record Drawing: A drawing showing the actual installation of facilities, showing changes from the plans, and showing detail enough that future persons can readily locate all objects.

B. Ties: Measurements from three permanent easily located objects to an installed object.

PART 2 – PRODUCTS (NOT APPLICABLE)

3.01 RECORD DRAWINGS

A. Provide record data in one of the following manners:

1. On a set of project drawings, neatly draw tie measurements and changes.

2. On separate 8½ X 11 sheets, neatly draw site sketches, structure sketches, etc., indicating the necessary information.

SECTION 01 78 00 – CLOSEOUT SUBMITTALS PAGE 2 OF 2

B. Provide three (3) swing tie measurements to all buried utility objects installed under the contract that may need to be located in the future, including, but not limited to:

1. Gate valves

2. Cleanouts

3. Sewer wyes

4. Utility crossings

C. Provide offset measurements for buried utilities (e.g. water main) installed parallel to roads.

D. Provide revised elevation data for all items that have elevations shown on the plan drawings, including, but not limited to, the following:

1. Manhole invert elevations

2. Elevations of pipe entering and manholes

3.02 WARRANTIES

A. Submit all warranty information regarding the materials installed.

B. Minimum warranty information is listed in Section 01 43 00. Specific warranties may be required for each Section of specifications.

SECTION 31 23 10 – EXCAVATION, TRENCHING AND BACKFILL PAGE 1 OF 8

SECTION 31 23 10

EXCAVATION, TRENCHING AND BACKFILL

A. This section includes excavation, trenching and backfill necessary for the construction of the facilities as indicated on the plans including, but not limited to concrete sewer manholes, piping, and other structures.

A. Section 31 25 00 – Erosion and Sediment Control

B. Section 33 30 00 – Sanitary Sewerage

A. ASTM D698 – Test Methods for Moisture Density Relations of Soils and Soil- Aggregate Mixtures Using 5.5 lb. Rammer and 12-in. Drop [Standard Proctor Test].

B. ASTM D1556 – Test Method for Density of Soil in Place by the Sand-Cone Method.

C. ASTM D2216 – Test Method for Laboratory Determination of Water Content of Soil, Rock and Soil-Aggregate Mixtures.

D. ASTM D2487 – Classification of Soils for Engineering Purposes [Unified Soil Classification System].

E. ASTM D2774 – Underground Installation of Thermoplastic Pressure Piping.

F. ASTM D2922 – Test Method for Density of Soil and Soil Aggregate and Rock in Place by Nuclear Methods (Shallow Depth).

G. ASTM D3017 – Test Method for Water Content of Soil and Rock in Place by Nuclear Methods (Shallow Depth).

H. OSHA 1926 – Occupational Safety and Health Standards for the Construction Industry.

I. ODOT – Oregon Standard Specifications for Construction, 2018 Edition.

1.04 DEFINITIONS

A. Native, Import and Select Material Definitions:

1. Native Material: Soils excavated from the trench in the immediate vicinity of current pipe installation activities.

SECTION 31 23 10 – EXCAVATION, TRENCHING AND BACKFILL PAGE 2 OF 8

2. Import Material: Soils transported from a soil pit stockpile at a location other than the location where trench excavation is taking place.

B. Soil Materials as summarized in the table below and further defined in ASTM D2487:

USCS Group Description GW Well-Graded Gravel, with less than 5% fines GP Poorly-Graded Gravel, with less than 5% fines SW Well-Graded Sands, with less than 5% fines SP Poorly-Graded Sands, with less than 5% fines GW-GM or GW-GC Well-Graded Gravel, with 5-12% fines GP-GM or GP-GC Poorly-Graded Gravel, with 5-12% fines SW-SM or SW-SC Well Graded Sands with 5-12% fines SP-SM or SP-SC Poorly Graded Sands with 5-12% fines

1.05 QUALITY ASSURANCE

A. Compaction Testing Qualifications: Tests must be performed by a firm or professional regularly engaged in soil testing for engineering purposes. The individual on site shall be certified to operate nuclear density equipment.

B. Locations: Provide compaction test results at locations as designated by the Project

Engineer.

1. Frequency:

a. Excavation, Trenching and Backfilling outside of an Established, Traveled Roadway: once per 50-feet along the pipeline.

2. At locations where structures, roadway shoulders, or driveways will be constructed or reconstructed over the trench, the backfill shall be spread in layers and be compacted by mechanical tampers. In such cases, the backfill material shall be placed in successive layers not exceeding 6 inches in loose thickness, and each layer shall be compacted with mechanical tampers to the density specified herein. Mechanical tampers shall be of the impact type as approved by the Engineer.

3. At each location, provide enough tests to demonstrate compliance with the compaction requirements for both the pipe embedment zone and the final backfill zone.

4. If testing reveals inadequate compaction, retest at that location after remedying the non-compliance with the specifications.

SECTION 31 23 10 – EXCAVATION, TRENCHING AND BACKFILL PAGE 3 OF 8

PART 2 – PRODUCTS

2.01 BEDDING, HAUNCHING AND INITIAL BACKFILL MATERIAL

A. Imported Bedding, Haunching and Initial Backfill Materials: Use one of the following materials.

1. Crushed, processed or naturally occurring aggregates that meet ISPWC Section

305, “Type1 Bedding”:

2. USCS (ASTM D2487) soil types GP, GW, SP, SW (coarse grained soils with less than 5% fines) and GP-GM, GP-GC, GW-GM, GW-GC, SP-SM, SP-SC, SW-SM, SW-SC, with maximum particle sizes limited to 1-inch, utilized as stipulated in Part 3 - Execution.

B. Native bedding, native haunching and native initial backfill material:

1. Use in accordance with the restrictions of Part 3 – Execution.

2. Free from particles greater than 1-inch in dimension.

2.02 FINAL BACKFILL MATERIAL

A. General:

1. Free from soil chunks larger than 4-inches in dimension.

2. Free from stones or rocks larger than 4-inches in dimension.

3. Free from organic materials.

4. Free from frost chunks.

B. Imported Final Backfill for Wet Conditions:

1. Types GW, GP, SW, SP (coarse grained soils with less than 5% fines) or GW-

GC/GM, GP-GC/GM, SW-SC/SM, SP-SC/SM (coarse grained soils with 5-12% fines).

2. Otherwise meeting the general requirements of Article 2.02 Paragraph A.

A. Conform to applicable safety laws, including, but not limited to, OSHA 29 CFR Part 1926.

B. Obtain all permits from the appropriate road agencies for construction within road right of way.

C. Repair damage resulting from settlement, slides, cave-ins, water pressure, and other causes.

SECTION 31 23 10 – EXCAVATION, TRENCHING AND BACKFILL PAGE 4 OF 8

D. Provide traffic control and other temporary provisions as needed.

3.02 EXCAVATION

A. Remove brush, trees and stumps from excavation and site.

B. Strip and stockpile existing topsoil.

C. Maintain surface drainage away from trenching or excavation.

D. If existing soil cannot provide uniform and stable bearing support along the length of the pipe, or if the existing soil contains stones greater than 1-inch in dimension, then over-excavate 6-inches below bottom of pipe.

3.03 TRENCHING

A. Bottom Width:

1. No less than 12 inches or more than 24 inches wider than the outside diameter of the pipe.

2. Where a chain or wheel trencher is approved for use in a rural area, the trench width shall be 4 to 6 inches greater than the outside diameter of the pipe.

B. Depth: Provide minimum cover as specified, or depths shown on plans.

C. Top Width: As needed to meet safety requirements, but minimize the width where possible.

D. Trench Walls: Keep trench walls vertical in the pipe embedment zone.

E. Length of Open Trench:

1. All trenches must be backfilled during non-work hours, or alternately, up to 20-feet of trench can be left open during non-work hours if the trench is completely barricaded and fenced.

2. If open trenches in excess of this specification result in the wetting of moisture-sensitive stockpiled materials, such that the moisture content makes it impossible to meet compaction requirements, the contractor shall provide imported material that complies with these specifications and haul away the wet materials at no expense to the project or the Owner.

3.04 BEDDING

A. If existing soil cannot provide uniform, stable bearing support, over-excavate a minimum of 4 inches below bottom of pipe or structure and provide imported bedding material as directed by the Owner.

1. If unsuitable soil is encountered a price for imported bedding material will be negotiated if not included in the bid schedule.

SECTION 31 23 10 – EXCAVATION, TRENCHING AND BACKFILL PAGE 5 OF 8

B. Compaction of Imported Bedding: Meet the following density requirements based on standard proctor (ASTM D698):

Location

Percent of Max.Dry Density Required

Areas of Recent Fill or Embankment 95% Areas Traveled By Vehicular Traffic, Rights-of-Way 90% Unimproved Surfaces or Fields 80%

C. Unauthorized over excavation shall be backfilled with acceptable bedding material at the Contractor’s expense.

3.05 HAUNCHING AND INITIAL BACKFILL

A. General

1. Provide complete and uniform bearing and support for the pipe, including allowance for bell holes.

2. Work material under the pipe haunches and around the pipe to ensure full pipe support.

3. Place material in lifts no greater than 6-inches thickness in loose measure.

4. Install initial backfill to a depth of 6-inches over the crown of the pipe.

B. Material Usage:

1. PVC Pipe: Imported Material

C. Compaction of Haunching and Initial Backfill:

1. Compact haunching material and initial backfill using walk-behind vibratory plate compactor or manual hand-tamping tools

2. Ensure no contact between compacting equipment and the pipe.

3. Prohibited Compaction Equipment for Haunching and Initial Backfill:

a. hoe-pack

b. hydrohammer

c. rammer-tamper

d. vibratory rollers

4. Prevent movement of the pipe during placement or compaction of material.

5. Meet the following density requirements based on standard proctor (ASTM D698):

SECTION 31 23 10 – EXCAVATION, TRENCHING AND BACKFILL PAGE 6 OF 8

Percent of Max. Dry Density Required

Areas of Recent Fill or Embankment 95% Areas Traveled By Vehicular Traffic, Rights-of-Way 90% Unimproved Surfaces or Fields 80%

3.06 FINAL BACKFILL

1. If moisture content of the native soil results in the inability to meet compaction requirements (due to fines), use imported material that meets Article 2.02 B.

2. Waste or haul away material not meeting the requirements.

3. Repair any trenches improperly backfilled or where settlement occurs, then refill and compact.

B. Compaction:

1. Install 2-feet of total fill over the pipe crown before subjecting the trench to hydrohammers, hoe-packs, or vehicular traffic.

2. Backfill in lifts to meet compaction requirements throughout the full depth of backfilled trench.

3. Compact to the following requirements (Densities as a percent of Standard Proctor):

Maximum Lift

Percent of Max. Dry Density Required

Under Roadways or Surfaces Traveled by Vehicular Traffic 12-inches 95% Areas of Recent Fill or Embankment 12-inches 95% Rights-of-Way 12-inches 90% Unimproved Surfaces or Fields 24-inches 70%

4. Use smaller lifts if necessary to meet the in-place density requirements.

SECTION 31 23 10 – EXCAVATION, TRENCHING AND BACKFILL PAGE 7 OF 8

3.07 REMOVAL OF NUISANCE WATER

A. Control site drainage, springs and runoff, and prevent water from adversely affecting trenching locations.

B. Remove nuisance water entering the trenches. Water that can be removed through the use of sump or trash pumps will not be considered dewatering.

C. Keep trenches free from standing water until the facilities are in place, the end plugged against the entrance of water, and backfill has been placed and compacted.

3.08 LOCATE EXISTING UTILITIES

A. Field locate all existing underground utilities.

1. Utilize state “utility locate” hotlines.

2. Contact all other utility owners not covered by the state “Utility Locate” hotlines.

B. Contact tribal water and sewer officials 48-hours in advance of work in areas needing utility location service.

3.09 UTILITY CONFLICTS

A. Protect existing utilities from damage during excavation and backfilling operations.

B. Provide temporary support for existing water, gas, telephone, power, or other utility services that cross the trench until backfilling of trench is complete.

1. Compact backfill to 95% of maximum density under disturbed utilities.

2. Coordinate the repair of existing utilities, regardless of whether they were properly located.

a. Damage to existing utilities properly located through “Utility Locate” programs will be the responsibility of the Contractor to repair, at no cost to the Owner or Government.

b. Damage to existing utilities improperly located by “Utility Locate” programs shall be at the expense of the “Utility Locate” service or the owner of the damaged utilities.

c. Fair compensation will be negotiated for repairs to tribal water and sewer utilities that were improperly located. However, if the Contractor neglects to request a Tribal utility locate in accordance with the Contract requirements, no compensation will be made to the Contractor.

C. Water and sewer parallel and perpendicular crossings:

1. Maintain a 10-foot horizontal separation (O.D. to O.D.) for parallel mains.

SECTION 31 23 10 – EXCAVATION, TRENCHING AND BACKFILL PAGE 8 OF 8

2. Upon approval by the Engineer, water and sewer mains may be installed in parallel as close as 6-feet, provided all of the following conditions:

a. Vertical separation is 18 inches (O.D. to O.D.)

b. Water main is above the sewer main.

c. Sewer pipe is constructed to withstand 150 psi static pressure without leaking.

3. Maintain a minimum 18-inch vertical separation (O.D. to O.D.) for perpendicularly crossing mains.

a. Place water pipe over sewer pipe.

b. Lay pipe with joints equidistant from the point of crossing.

4. If it is impossible to meet any of the above separation distances and deviations, and specific provisions are not indicated on the plans, bring the matter to the attention of the Project Engineer for resolution.

SECTION 31 25 00 – EROSION AND SEDIMENT CONTROL PAGE 1 OF 3

SECTION 31 25 00

EROSION AND SEDIMENT CONTROL

A. This section includes erosion and siltation control measures accomplished through the use of silt fences, slope paving, ditch checks, and other erosion control devices or methods.

Section 31 23 10 – Excavation, Trenching and Backfill

A. Environmental Protection Agency - 1987 Congressional Amendments, Clean Water Act, Section 402.

B. Oregon Standard Specifications of Construction 2018

1.04 SUBMITTALS

A. Storm Water Pollution Prevention Plan (SWPPP).

B. Notice of Intent (NOI) for coverage under the EPA Construction General Permit.

C. Silt fence material, (or alternate erosion control material proposed).

1.05 QUALITY ASSURANCE

A. Erosion control materials, methods and practices shall conform to the applicable state agency handbooks of Best Management Practices, or tribal laws established for the purpose of erosion control on construction sites.

PART 2 - PRODUCTS

2.01 POSTS

A. Wood or steel, 2” x 2” x 54” minimum.

SECTION 31 25 00 – EROSION AND SEDIMENT CONTROL PAGE 2 OF 3

2.02 SILT FENCING

A. 15 mil thick screen fabric with a minimum of 120 pounds of grab tensile strength and an equivalent minimum opening size of 170.

B. All seams shall be heat sealed or sewn

2.03 EROSION FIBER LOGS

A. Made of aspen excelsior barbed, curled wooden fibers inside a tube of polyester netting.

B. Acceptable Products: Equal to American Excelsior Sediment Log

2.04 GEOTEXTILE FABRIC

A. Woven Polypropylene Geotextile

B. Acceptable Products: Equal to Mirafi 500X

2.05 AGGREGATE FOR STABILIZATION

A. Oregon Standard Specifications for Construction 2018 - Section 00430.11 “Granular

Drain Backfill Material”

Sieve Size Percent Passing 2” 100% 1 1/2” 95-100% 3/8“ 0-15% 1/2” 0-2%

PART 3 – EXECUTION

A. Coordinate temporary and permanent erosion control measures to ensure economical, effective and continuous erosion control.

B. Keep construction areas small.

C. Divert drainage away from construction areas.

D. Prevent discharge or deposition of soil materials into surface waters.

E. Inspect and maintain temporary erosion control materials to ensure its continued effectiveness.

1. Remove sediment material captured by erosion control systems before the systems fail.

SECTION 31 25 00 – EROSION AND SEDIMENT CONTROL PAGE 3 OF 3

2. Inspect and repair erosion control systems following rain events.

F. Remove erosion control only after the area has stabilized and vegetation has developed to the extent that further erosion is unlikely.

G. Submit an erosion control plan in accordance with local Tribal requirements, State

BMP’s and Federal EPA requirements.

3.02 TEMPORARY EROSION CONTROL

A. Use temporary erosion control measures to protect ditches and drainage ways.

B. Silt fencing (in lieu of or in combination with erosion bales)

1. Place silt fences following a constant elevation contour, in an arc or horseshoe shape with the ends pointing up towards the slope.

2. Drive stakes into the soil to a depth such that the silt fence contacts the ground.

3. Trench the silt fence into the ground and tamp the bottom of the filter material to ensure that runoff is forced through the fence rather than under it.

C. Erosion Control Fiber Logs (in lieu of or in combination with other methods)

1. Install as necessary or as otherwise indicated on the plans.

2. Place perpendicular to the direction of flow in a drainage swale or ditch.

3. Butt ends of logs up against each other and secure using nylon zip ties.

4. Place hardwood stakes every 2-feet along the downstream side of the erosion log and secure the log to the stakes.

5. Ensure that the installation is installed flush with the ground so that runoff is forced through the erosion log rather than over it.

SECTION 33 01 31 – TEMPORARY SEWER BYPASS PAGE 1 OF 6

SECTION 33 01 31

TEMPORARY SEWER BYPASS

A. This section includes requirements for implementing a temporary pumping system for the purpose of diverting existing sewage flow around work area for the duration of the project.

A. Section 31 23 13 – Excavation, Trenching and Backfill

B. Section 33 05 61 – Sanitary Sewer Manholes

1.03 QUALITY ASSURANCE

A. Follow national standards and requirements as specified herein.

B. Perform leakage and pressure tests on discharge piping using clean water, before operation. Notify Engineer 24 hours prior to testing.

C. Maintain and inspect temporary pumping system every four hours.

Responsible operator shall be on site when pumps are operating.

D. Keep and maintain spare parts for pumps and piping on site, as required.

E. Maintain adequate hoisting equipment and accessories on site for each pump.

A. Submit following Section 01 33 00.

1. Detailed plan and description of proposed pumping system. Indicate number, size, material, location and method of installation of suction and discharge piping, size of pipeline or conveyance system to be bypassed, staging area for pumps, site access point, and expected flow.

a) Size and location of manhole or access points for suction and discharge hose or piping.

b) Sections showing suction and discharge pipe depth, embedment, select fill and special backfill, if buried.

c) Temporary pipe supports and anchoring required.

SECTION 33 01 31 – TEMPORARY SEWER BYPASS PAGE 2 OF 6

d) Thrust and restraint block sizes and locations.

e) Sewer plugging method and type of plugs.

f) Bypass pump sizes, capacity, number of each size to be on site and power requirements.

g) Backup pump, power and piping equipment.

h) Calculations of static lift, friction losses, and flow velocity. Pump curves showing pump operating range.

i) Design plans and computation for access to bypass pumping locations indicated on drawings.

j) Calculations for selection of bypass pumping pipe size.

k) Method of noise control for each pump and/or generator.

l) Method of protecting discharge manholes or structures from erosion and damage.

m) Schedule for installation and maintenance of bypassing pumping lines.

n) Procedures to monitor upstream mains for backup impacts.

o) Procedures for setup and breakdown of pumping operations.

p) Emergency plan detailing procedures to be followed in event of pump failures, sewer overflows, service backups, and sewage spillage.

1) Maintain copy of emergency plan on site for duration of project.

B. Certify bypass system will meet requirements of codes, and regulatory agencies having jurisdiction.

1.05 DELIVERY AND STORAGE

A. Transport, deliver, handle, and store pipe, fittings, pumps, ancillary equipment and materials to prevent damage and following manufacturer’s recommendations.

B. Inspect all material and equipment for proper operation before initiating work.

C. Material found to be defective or damaged due to manufacturer or shipment:

SECTION 33 01 31 – TEMPORARY SEWER BYPASS PAGE 3 OF 6

1. When Engineer deems repairable: Repair as recommended by manufacturer.

2. When Engineer deems not repairable: Replace as directed by Engineer before initiating work.

3. Repair or replacement of defective or damaged material and equipment will be at no cost to Owner.

PART 2 - PRODUCTS

2.01 MATERIALS

A. Discharge and Suction Pipes: Approved by Engineer.

1. Discharge piping: Determined according to flow calculations and system operating calculations.

2. Suction piping: Determined according to pump size, flow calculations, and manhole depth following manufacturer’s specifications and recommendations.

B. Polyethylene Plastic Pipe:

1. High density solid wall and following ASTM F714 Polyethylene (PE) Plastic Pipe (SDR-DR) based on Outside Diameter, ASTM D1248 and

ASTM D3550.

2. Homogeneous throughout, free of visible cracks, discoloration, pitting, varying wall thickness, holes, foreign material, blisters, or other deleterious faults.

C. High-Density Polyethylene (HDPE)

1. Homogenous throughout, free of visible cracks, discoloration, pitting, varying wall thickness, holes, foreign material, blisters, or other deleterious faults.

2. Defective areas of pipe: Cut out and joint fused as stated herein.

3. Assembled and joined at site using couplings, flanges or butt-fusion method to provide leak proof joint. Follow manufacturer’s instructions and ASTM D2657.

4. Threaded or solvent joints and connections are not permitted.

5. Fusing: By personnel certified as fusion technicians by manufacturer of HDPE pipe and/or fusing equipment.

SECTION 33 01 31 – TEMPORARY SEWER BYPASS PAGE 4 OF 6

6. Butt-fused joint: True alignment and uniform roll-back beads resulting from use of proper temperature and pressure.

7. Allow adequate cooling time before removal of pressure.

8. Watertight and have tensile strength equal to that of pipe.

9. Acceptance by Engineer before insertion.

10. Use in streams,…