Attch_2-_Specifications.pdf

SPECIFICATIONS FOR

HONCHO SLIDE CULVERT REPLACEMENT

COOS BAY ERFO #2

COOS BAY DISTRICT

DIVISION 1 – GENERAL REQUIREMENTS

General Information and Requirements Section 01009

Testing Laboratory Services Section 01458

Mobilization Section 01505

Traffic Regulation Section 01570

DIVISON 2 – SITE CONSTRUCTION

Clearing and Grubbing Section 02231

Borrow Excavation Section 02317

Excavation and Fill for Structures Section 02322

Geotextile Section 02323

Watering Section 02339

Riprap and Rock Lining Section 02378

Culverts Section 02640

Crushed Aggregate Course Section 02722

River-Run Culvert Interior Embedding Mix Section 02725

Seeding & Mulching Section 02923

DIVISION 3 – CONCRETE

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PLANS / DRAWINGS FOR

HONCHO SLIDE CULVERT REPLACEMENT

COOS BAY ERFO #2

COOS BAY DISTRICT

SHEET

NO. TITLE DWG. NO.

1 TITLE SHEET NONE

2 LOCATION MAP – HONCHO CREEK NONE

3 LOCATION MAP – HONCHO CREEK NONE

4 WASTE & BORROW AREAS NONE

SITE #1: 27-10-4.1 MP 0.57 REMOVE PLUGGING & CULVERT REPLACEMENT

5 SEDIMENT CONTROL PLAN NONE

6 SITE PLAN NONE

7 PROFILE VIEW – CULVERT NONE

8 CULVERT DETAILS NONE

9 ROAD DETAILS NONE

SITE #2: 27-10-4.1 MP 0.50 TO MP 0.57 DITCH RECONSTRUCTION &

SITE #3: 27-10-4.1 MP 0.54 REMOVE PLUGGING & REPLACE EXISTING STREAM

CULVERT

10 DETAILS NONE

SITE #4: 27-10-4.1 MP 0.50 EMBANKMENT RECONSTRUCTION

11 SITE PLAN NONE

12 PROFILE VIEW & ROAD DETAILS NONE

13 CROSS SECTIONS NONE

29-10-33.0 MP 3.0 SLIDE CREEK ROAD

14 LOCATION MAP NONE

15 SITE PLAN NONE

16 PROFILE VIEW & ROAD DETAILS NONE

17 CROSS SECTIONS NONE

DRAWINGS ARE PROVIDED SEPARATELY

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DIVISION 1 SECTION 01009

GENERAL REQUIREMENTS GENERAL INFORMATION AND REQUIREMENTS

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PART 1: GENERAL

1.01 SUMMARY

A. Description of Work: The work includes all labor, supervision, transportation, equipment, tools, supplies, materials, and incidentals necessary for the removal and replacement of existing culvert, ditch reconstruction, and embankment reconstruction, as per these specifications and attached drawings. This includes the setting of construction stakes, minor clearing and grubbing, soil stabilization, the removal and disposal of the existing drainage structure, water quality control, and the culvert installation which includes excavation and embankment, placement of bedding and surface aggregate, construction of slurry mix, placement of riprap, and seeding the fish culvert interior with riprap and river-run culvert embedding mix.

B. Location: Work under this Contract is located in Coos County, Oregon in Umpqua

Resource Area of the Coos Bay District, Bureau of Land Management. The work locations are shown on the drawings.

1.02 REFERENCES

A. Reference Specifications/Standards with Abbreviations and/or Acronyms: Wherever the following acronyms are used in these specifications or on the drawings, they are to be construed the same as the respective expressions represented. The most recent version of the referenced specification shall be used. Copies of the referenced specifications/standards referred to herein may be procured by the Contractor, from the following:

A2LA American Association for Laboratory Accreditation

5301 Buckeystown Pike, Suite 350

Frederick, MD 21704

AA Aluminum Association, Inc.

900 19 th

Street, N.W., Suite 300

Washington, DC 2006

AASHTO American Association of State Highway and Transportation Officials

444 North Capitol Street, N.W., Suite 249

Washington, DC 20001

ACI American Concrete Institute

P.O. Box 19150

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AI Asphalt Institute

P.O. Box 14052

Lexington, KY 40512-4052

AISC American Institute of Steel Construction

1 E Wacker Dr., Suite 3100

Chicago, IL 60601

ANSI American National Standards Institute

11 W 42nd St.

New York, NY 10036

ASTM American Society for Testing and Materials

100 Barr Harbor Dr.

West Conshohocken, PA 19428-2959

AWS American Welding Society, Inc.

550 Lejeune Rd. NW

Miami, FL 33126

FP Standard Specifications for Construction of Roads and Bridgeson Federal

Highway Projects

Government Printing Office

Washington, DC 20402

FS Federal Standard

General Services Administration

Specifications Branch

Room 6039, GSA Building

7th and D Streets, S.W.

Washington, DC 20407

IFI Industrial Fasteners Institute

1505 East Ohio Building

Cleveland, OH 44114

GAI Geosynthetic Accreditation Institute

475 Kedron Avenue

Folsom, PA 19033-1288

ISO International Organization for Standardization

1, ch. De la Voie-Creuse

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Switzerland

MUTCD Manual on Uniform Traffic Control Devices for Streets and Highways

Superintendent of Documents

NAPA National Asphalt Pavement Association

NAPA Building

5100 Forbes Blvd.

Lanham, MD 20706-4413

NPA National Particleboard Association

18928 Premiere Court

Gaithersburg, MD 20879

NPCA National Paint and Coating Association

1500 Rhode Island Avenue, N.W.

Washington, D.C. 20005

OSHA Occupational Safety and Health Administration

US Department of Labor

200 Constitution Ave., NW

Washington, DC 20210

PCA Portland Cement Association

5420 Old Orchard Road

Skokie, IL 60077

PS Product Standards

US Department of Commerce

SSPC Steel Structures Painting Council

4516 Henry St., Suite 301

Pittsburgh, PA 15213

*Federal Specification and catalogs may be obtained at Business Service Centers of

Regional Offices of the General Services Administration. (Washington, DC; Boston, MA;

New York, NY; Philadelphia, PA; Atlanta, GA; Chicago, IL; Kansas City, MO; Fort Worth, TX; Denver, CO; San Francisco, CA; and Auburn, WA.)

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B. Reference Codes with Abbreviations and Acronyms: Wherever the following acronyms are used in these specifications or on the drawings, they are to be construed the same as the respective expressions represented. Copies of the referenced codes referred to may be procured by the Contractor from the following:

LSC Life Safety Code

National Fire Protection Association

1 Batterymarch Park

Quincy, MA 02269

1.03 DEFINITIONS: Approval of the submittals is an indication that the Contractor's submittals have been reviewed and that there are no objections, except as noted. Approval of deviations shall apply only to those deviations or omissions from the requirements of the drawings and specifications brought to the Contracting Officer's attention in writing. After approval of an item, submit a substitute for approval when the approved item cannot be purchased or delivered in time to avoid delay in completion of the project.

1.04 SUBMITTALS

A. Scope: Submittals include manufacturers' literature.

B. Requirements: Refer to specifications for submittals required. Allow at least 10 working days for review. Submittals shall be delivered to the Contracting Officer’s

Representative (COR) at 1300 Airport Lane, North Bend, OR 97459.

C. Identification of Submittals: Completely identify each submittal by showing at least the following information:

1. Name and address of submitter, plus name and telephone number of the individual to contact for further information.

2. Name of project as it appears in these specifications.

3. Contract number, drawing number, and specification section number to which the submittal applies.

4. Whether this is an original submittal or resubmittal.

5. Each item shall clearly note the manufacturer's name and address, trade name, product, lot, style, color, catalog designation or model number, and locations of use.

1.05 CERTIFICATES OF CONFORMANCE

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A. Requirements: The Contracting Officer may permit use, prior to sampling and testing, of materials when accompanied by Certificates of Conformance. Materials used on the basis of a Certificate of Conformance may be sampled and tested. Installation of materials on the basis of Certificates of Conformance shall not relieve the Contractor of responsibility for incorporating materials which conform to the requirements of the drawings and specifications. Material not conforming to those requirements will be subject to rejection, whether in place or not.

B. Format: The Certificate of Conformance provided by the supplier shall:

1. State that the named product conforms to the Contract requirements.

2. Either be accompanied with a certified copy of the test results, or certify that such test results are on file with the manufacturer and will be furnished to the Contracting

Officer upon request

3. Provide the name and address of the manufacturer, the testing agency, and the date of tests

4. Set forth the means of identification which will permit field determination of the product delivered as being the product covered by the certification.

1.06 QUALITY ASSURANCE

A. Codes and Standards: The work shall comply with codes and standards applicable to each type of work and as listed in the individual sections of these specifications. This

Contract incorporates materials, applications, and tests by reference, with the same force and effect as when they were given in full text.

B. Conflict: Where a conflict occurs between reference documents and project specifications, the project specifications shall govern.

1.07 WARRANTY

Required:

A. All project construction shall be provided with a one-year warranty.

B. Material and equipment furnished under this contract shall be covered by the most favorable commercial warranties given to customers for such materials or equipment.

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01009 - 6 or implied, from manufacturers or suppliers for materials or equipment furnished under the contract the Contractor shall:

1. Obtain warranties that would be given in normal commercial practices.

2. Require warranties to be executed, in writing, for the benefit of the Government.

3. Submit warranties to the CO prior to the final inspection.

1.08 DELIVERY, STORAGE, AND HANDLING

A. Delivery: Protect products incorporated into the work from damage while in transit to the site. Products must be delivered in original unopened containers with manufacturer's name, brand designation, and contents legibly indicated.

B. Storage: Provide temporary storage facilities for products. Storage shall comply with the manufacturer's instructions. The storage area shall permit access for inspection and handling.

C. Handling: Load and unload products protecting them from damage.

1.09 PROJECT/SITE CONDITIONS

A. Access to the Work: Access is by State, County, and Bureau of Land Management controlled highways and secondary roads.

B. Work Hours: Work on Saturdays, Sundays, and holidays will only be permitted by written approval of the Contracting Officer’s Representative.

C. Construction activity restrictions:

1. No work shall occur within areas designated as murrelet habitat prior to August 5 th

After August 5 th

, no work shall take place earlier than two hours after sunrise or later than two hours before sunset.

2. Instream activity on this project may not proceed prior to July 1 nor extend beyond

September 15.

D. Temporary Facilities: Contractor is responsible to provide all temporary facilities.

These include but are not limited to sanitation, power and water.

E. Vehicle and Equipment Cleaning: Cleaning shall consist of the removal of soil and debris by washing with a high pressure hose, or steam cleaning.

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1. All construction equipment shall be cleaned prior to entering or leaving the project area. An exception will be made for the transportation of personnel if all vehicles are confined to operating on bituminous or gravel-surfaced roads and staying on the designated surfacing at all times. Washing shall consist of removing petroleum or other contaminants, soil and debris from all exterior surfaces of construction equipment with priority given to the following areas: Tracks, track frames and under carriages, all exterior surfaces such as operator decks, winch or ripper areas, fuel tanks, engine and hydro areas, blade arms, blade surfaces, booms and buckets.

2. Prior to entering the construction site vehicle and construction equipment cleaning shall be done at an off-site commercial facility.

3. A washing receipt shall be provided by the Contractor certifying that the above requirements have been complied with and showing the make, model, ID# and date cleaning occurred.

4. Before leaving the construction site vehicles and construction equipment shall be washed. The waste water shall be prevented from entering the stream.

1.10 SEQUENCING AND SCHEDULING: The schedule shall be submitted at the pre-work conference. When requested, submit an updated schedule within 3 calendar days. Schedule shall include a detailed narrative of the sequence of construction including date, time of day, equipment and material used and erosion control measures deployed. No work will be permitted until the schedule is approved in writing by the COR.

PART 2: PRODUCTS

2.01 Products including spark arresters shall meet the requirements of the State of Oregon’s regulations.

PART 3: EXECUTION

3.01 PROJECT MEETINGS

A. Pre-Work Conference:

1. Will be held prior to the start of work. The Contractor will be notified in advance of meeting time, date and place. The purpose will be to review required work, project drawings and specifications, construction schedules, payroll and payments, and administrative provisions of the Contract.

2. The Contractor, subcontractors and the persons responsible for coordination of the work shall be present at the meeting.

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3. Be prepared to summarize and explain procedures planned for the project and present the submittals requested in the specifications.

B. Progress Meetings:

1. To be held at the project site, or as determined by the Contracting Officer.

2. May be called by either the Contracting Officer or the Contractor. Request shall state who should attend and include an agenda.

C. Final Inspection:

1. To be held at the project site, or as determined by the Contracting Officer.

2. Notify the Contracting Officer in writing at least 3 working days before the completion date so the Government can schedule final inspection.

3. The superintendent shall be present during this inspection.

3.02 PREPARATION

A. Work Layout: Baseline monuments or benchmarks disturbed or removed during construction shall be reset by the Contractor at the Contractor's expense. The benchmarks are shown on the plans, to give contractor measurements, lines, and grades necessary for the work executed under this contract.

B. Construction stakes shall consist of 1 ½ inch x 1 ½ inch smooth finished wood stakes of good quality, approximately 12 inches in length.

C. The contractor shall need to establish a new temporary bench mark (TBM) with base line and 2 reference points outside the expected construction zone referencing both the inlet and outlet of the new culvert location to the following standards of accuracy:

Maximum allowable horizontal error +/- 0.2 feet

Maximum allowable vertical error +/- 0.1 feet

3.03 SALVAGEABLE ITEMS

Requirements: Salvageable items consisting of culverts and any other appertances shall become the property of the Contractor. Items which have become the property of the

Contractor shall be removed from the work site. The Contractor shall dispose of materials in a legal manner and pay any fee required.

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3.04 DISPOSAL OF DEBRIS

Requirements: Items or debris not designated as salvage for the Government shall become the property of the Contractor. Disposal of materials in a legal manner and payment of fees required is the Contractor's responsibility.

3.05 HAZARDOUS MATERIAL CONTAINMENT/CLEANUP:

A. Spill Prevention, Control, and Countermeasure Plan (SPCC) – The Contractor shall develop a SPCC Plan as defined under 40 CFR Part. The SPCC Plan will be reviewed and accepted by the CO prior to initiating project work. Upon request, an example of a

SPCC Plan may be obtained from the Coos Bay District Environmental Protection

Specialist for hazardous materials. The SPCC Plan shall, as a minimum, contain the following information:

1. Response Priorities

2. Contractor Representative in Charge

3. Duties of Contractor Personnel

4. Contractor Emergency Response Procedures

5. Contents of the Spill Containment Kit (SCK)

6. Spill Response Diagram

B. Spill Containment Kit (SCK) – The Contractor shall have a SCK, as described in the

SPCC, on-site during any operation and provide training to employees on how components of the SCK are used. A typical spill kit will contain a quantity of absorbent floating boom, pads and pillows, as well as heavy-gauge plastic bags to contain soiled absorbents. A kit with a minimum 40 gallon containment capacity shall be present on site during operations. These are often packed in a 55 gallon drum suitable for transport, and containment of used materials.

C. The SCK must be designed for use with petroleum products, and must contain, as a minimum, the following items:

1. Two Bales (4 Booms/Bale, of 8 x 10 inches Absorbent Booms)

2. Two Bales (100 Pads/Bale, of Absorbent Pad, minimum 17 x 19 x 1/4 inch)

3. One Absorbent Sweep (minimum of 18 inches x 100 feet x 3/8 inch)

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4. One Floating On-Water Containment Boom (minimum 18” width x 100’ length)

(only required for in-stream or riparian work within 50 feet or less of a waterway.)

5. Gloves (PVC and Latex), Goggles, and Garbage Bags.

D. During Contractor operations on lands managed by the BLM, in event of a release as defined in Oregon Administrative Rules (OAR), Part 340, Division 142, Hazardous

Waste Management, the Contractor shall immediately implement the SPCC plan as referenced herein and notify the Government Contract Representative (COR or PI) on-site or by contacting the BLM office in North Bend, OR at (541) 756-0100. The

Government Representative will remain on scene until relieved by the District

Hazardous Materials Management Coordinator (HMMC) or his/her representative.

E. The Contractor shall take all appropriate action to stop, contain and repair the source of a release. The Government Representative will initiate the District’s Hazardous Materials

Contingency Plan and/or Spill containment Plan reporting requirements The

Government Representative will remain on scene until relieved by the District

Hazardous Materials Management Coordinator (HMMC) or his/her representative.

F. The Contractor shall implement the Emergency Response Actions described in the

SPCC plan. Those actions include, but are not limited to, immediate action to protect employee health and safety, immediate action to stop the flow of product from the equipment, removal of equipment from the waterway if required and/or possible, deployment of the absorbent booms and pads downstream from the equipment, and any other immediate action. The Contractor shall be responsible for cleanup/removal and proper disposal of contaminated materials from the site.

G. If the HMMC determines that additional resources are needed, the HMMC will implement the District’s Hazardous Materials Contingency Plan and the District Spill

Containment Plan. The Contractor may be responsible for any or all costs associated with this level of effort. The amount of actual damage will be deducted by the

Government from the amount due to the Contractor prior to final payment.

3.06 SPILL PREVENTION

A. Contractor shall not re-fuel equipment or power tools in the stream channel or on the floodplain. All on-site refueling shall occur at a location approved by the COR. The location shall have adequate spill containment and clean-up materials during refueling.

B. All site de-watering pumps shall be contained in a leak proof device placed on absorbent pads while in operation within the creek/floodplain. Re-fueling shall only occur when the pump is contained within the device. Fuel containers shall not be stored in the stream channel or on the floodplain.

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D. All pump intake nozzles shall be screened with mesh/woven wire not exceeding 3/32 inch openings.

PART 4: MEASUREMENT AND PAYMENT

4.01 METHOD OF MEASUREMENT

Units: The work described in this section will not be measured for payment.

4.02 BASIS OF PAYMENT

Payment: No direct payment for the work described under this section will be made.

Consideration for this item shall be included in the price for other items of the contract.

END OF SECTION – 01009

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DIVISION 1 SECTION 01458

GENERAL REQUIREMENTS TESTING LABORATORY SERVICES

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1.01 SUMMARY: This section includes requirements for the Contractor to engage a qualified, independent testing laboratory to conduct specific tests where the Contractor is required to do so in this contract.

1.02 SUBMITTALS: The Contractor shall provide three (3) copies of test reports to the COR.

Reports shall include testing facility name, address, telephone number, and names of full-time responsible officers.

1.03 QUALITY ASSURANCE

A. Approval of Laboratory: The qualified, independent testing laboratory, which will be conducting the specific tests required in this contract, must have authority or be licensed to operate in the State in which the project is located. The testing laboratory shall be approved by the CO prior to the Contractor beginning work.

B. Responsibilities of Laboratory:

1. Test samples of mixes submitted by the Contractor.

2. Provide qualified personnel at project site. Cooperate with the COR and Contractor in performance of services.

3. Perform specified sampling and testing of products and materials in accordance with specified standards.

4. Ascertain compliance of materials and mixes with requirements of specifications.

5. Promptly notify the CO and Contractor of observed irregularities or non-conformance of materials.

6. Perform additional tests required by the CO.

C. Limitations on Laboratory

1. Laboratory may not release, revoke, alter, or enlarge on requirements of specifications.

2. Laboratory may not approve or accept partial portions of the work.

3. Laboratory may not assume duties of the Contractor unless approved in writing by the CO.

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1.04 SEQUENCING AND SCHEDULING

A. Establishing Testing Schedule:

1. By advance discussion with the testing laboratory, determine the time required for the laboratory to perform its test and to issue its findings.

2. Provide required time within the construction schedule.

B. Revising Test Schedule: When construction schedule changes are necessary during construction, coordinate such changes with the testing laboratory as required.

2.01 Reports shall include:

A. Date issued.

B. Project title and number.

C. Name of inspector.

D. Date and time of sampling or inspection.

E. Identification of product and specification sections.

F. Location in the Project.

G. Type of inspection or test.

H. Date of tests.

I. Results of tests.

J. Conformance with Contract Documents.

2.02 Interpretation: When requested by the COR, provide interpretation of test results.

2.03 The following materials shall be tested:

Compaction for structures including culverts: each 12 inch compacted lift shall be tested after initial lift with a roller and first lift on the top of the culvert.

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3.01 FIELD QUALITY CONTROL

Contractor Requirements: See individual specifications "Field Quality Control" paragraph for specific testing requirements. When applicable, the Contractor shall:

A. Deliver to agency or laboratory at designated location, adequate samples of materials proposed to be used which require testing, along with proposed mix designs.

B. Cooperate with laboratory personnel, and provide access to the Work.

C. Provide incidental labor and facilities:

1. To obtain, handle, and label or identify samples at the site or at source of products and materials to be tested.

2. To facilitate tests.

3. To provide storage and curing of test samples.

D. Ensure samples are taken by qualified testing personnel.

E. Coordinate the laboratory test frequency and timing with the Contracting Officer.

F. Ensure tests are completed according to the testing schedule.

G. Furnish test reports within 14 working days after tests have been complete. Verbal or written field reports shall be given to the COR when applicable to accommodate contractor’s work schedule.

END OF SECITON 01458

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DIVISION 1 SECTION 01505

GENERAL REQUIREMENTS MOBILIZATION

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1.01 SUMMARY: This section includes preparatory work and operations, including those necessary to the movement of personnel, equipment, supplies, and incidentals; and for other work and operations, which must be performed, or costs incurred prior to beginning work.

(There are no applicable requirements.)

PART 3: EXECUTION

(There are no applicable requirements.)

PART 4: MEASUREMENT AND PAYMENT

4.01 METHOD OF MEASUREMENT: Progress payments will be made as follows:

A. When 5% of the original contract amount is earned from other bid items, 50% of the amount bid for mobilization or 5% of the original contract amount, whichever is less, will be paid.

B. When 10% of the original contract amount is earned from other bid items, 100% of the amount bid for mobilization or 10% of the original contract amount, whichever is less, will be paid.

C. Upon completion of work for the project, 100% of the amount offered for mobilization, less previous progress payments for mobilization, will be paid.

D. The total sum of all payments shall not exceed the original Contract amount bid for mobilization, regardless of the fact that the Contractor may have shut down for the work on the project or moved equipment away from the project and the back again.

4.02 BASIS OF PAYMENT: Payment includes moves between project sites. Payment will be made at the contract price, as indicated in the Schedule of Items and will be full compensation for the work described in this section. Payment will be made under:

Pay Item Pay Unit

01505(01) Mobilization Lump Sum

END OF SECTION 01505

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DIVISION 1 SECTION 01570

GENERAL REQUIREMENTS TRAFFIC REGULATION

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1.01 SUMMARY: This section includes requirements to maintain public traffic convenience and safety during construction operations.

1.02 REFERENCES:

U.S. Department of Transportation, Federal Highway Administration

MUTCD – 2003 Manual on Uniform Traffic Control Devices, For Streets and Highway

1.02 SUBMITTALS:

General: Submittals shall be according to Section 01009 – General Information and

Requirements.

2.01 MATERIALS:

A. Signs shall have reflectorized sheeting, and meet the standards of the current Manual on

Uniform Traffic Control Devices (MUTCD) for colors, sizes, and shapes.

B. Barricades shall be constructed of wood or metal and meet the standards of MUTCD for colors, sizes, and shapes.

C. Cones shall be orange colored and highly visible both in daylight and darkness. For nighttime use, they shall be reflectorized or equipped with lighting devices for maximum visibility. Reflectorized material shall have a smooth, sealed outer surface which will display the same approximate color day and night. Cones shall be capable of remaining upright during normal traffic flow and wind conditions in the area where they are to be used. Cones shall be a minimum 18 inches high.

3.01 PUBLIC CONVENIENCE:

Requirements:

A. Construction shall be accomplished in a timely fashion to minimize the inconvenience to the general public.

B. The COR shall be notified seven days in advance of any road closure.

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DIVISION 1 SECTION 01570

GENERAL REQUIREMENTS TRAFFIC REGULATION

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3.02 PUBLIC SAFETY:

A. Requirements:

1. The Contractor shall conduct the work as to ensure the safety of the general public along roadways, and to ensure the protection of persons and properties.

2. Appropriate traffic control signs and devices shall be erected prior to use of the roadway or area and promptly removed when no longer required. When signs and barricades do not provide adequate protection, or when directed by the Contracting

Officer, the Contractor shall provide flagmen or other appropriate traffic controls.

3. Work shall be scheduled, so that windrows of dirt, open trenches, dirt piles, or other similar or related traffic hazards are eliminated prior to sunset.

B. Signs:

1. The Contractor shall erect warning signs and road closure signs at places on the project where operations may interfere with the use of the road and according to the drawings. Such signs shall be utilized only during the period of the hazard. When the hazard no longer exists, warning and road closure signs, except those necessary for the safety of the public, shall be removed, or shall be covered so that the entire sign panel is not visible.

2. Barricades and Other Traffic Control: Barricades, drums, and cones shall be used as required as channelization devices to prevent vehicular travel in areas that are a hazard to the public or would be a danger to workers and equipment.

3. Maintenance of Traffic Control Devices: Signs, barricades, and other devices shall be kept clean and readable. During periods when no work is being done, daily inspection and necessary repairs shall be made to signs, lights, barricades, and other devices.

END OF SECTION 01570

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DIVISION 2 SECTION 02231

SITE CONSTRUCTION CLEARING AND GRUBBING

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A. Section Includes: Removal of trees, clearing of vegetation and grubbing of stumps, roots and debris; disposal of unutilized materials; and other incidental work related to preparing the site for Contractor work.

B. Related Sections:

Excavation and Fill for Structure Section 02322

Seeding Section 02923

1.02 DEFINITIONS

A. Clearing: Clearing shall consist of the felling, trimming, and cutting of obstructions such as trees into sections and the satisfactory disposal of the trees and other surface vegetation designated for removal, including down timber, snags, brush, and rubbish occurring in the areas to be cleared.

B. Grubbing: Grubbing shall consist of the removal and disposal of below-surface stumps, roots larger than 3 inches in diameter, and matted roots from the designated grubbing areas.

1.03 PROJECT/SITE CONDITIONS:

A. Work Limits: Area to be cleared and grubbed will be the excavation area or those that will be under the embankment.

B. Burning of Slash shall not be permitted.

C. Landscape Preservation: Protect vegetation outside the work limits from injury.

2.01 EQUIPMENT: Spark arresters shall meet the requirements of the State of Oregon’s

Regulations.

3.01 PROTECTION: Keep roads and walks free of dirt and debris at all times.

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DIVISION 2 SECTION 02231

SITE CONSTRUCTION CLEARING AND GRUBBING

02231 - 2

3.02 CLEARING

A. Requirements: Remove all trees, stumps, roots, brush, and other vegetation within the work limits.

B. All timber with a scaling diameter of 4 inches and greater shall be decked adjacent to the work site in such a manner that a self loader may reach the logs without leaving the running surface of the road unless otherwise shown on the drawings. Government timber shall be decked and kept separate from private timber.

3.03 GRUBBING

Excavation Areas: Remove all stumps, roots, and debris to a minimum of 12 inches below finished grade.

3.04 DISPOSAL

Requirements: Vegetative material that is not to be salvaged shall be disposed of by scattering outside the clearing limits.

Consideration for this item shall be included in Section 02322 – Excavation and Fill for

Structures.

END OF SECTION - 02231

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DIVISION 2 SECTION 02317

SITE WORK BORROW EXCAVATION

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1.01 SUMMARY: This section includes furnishing, loading, hauling, and placing imported borrow materials as backfill for culvert installations and road embankments.

1.02 PROJECT/SITE CONDITIONS

A. Excess Material: Useable excess material excavated shall be used for backfill before imported borrow use is allowed. Wasting borrow is not permitted.

B. Borrow Material Source: The Contractor shall obtain borrow material from sources shown on drawings.

2.01 MATERIALS

A. Imported Borrow: Imported borrow shall be selected to meet the requirements and conditions for which the particular fill is intended. Sand soils or sand-clay soils capable of being readily shaped and compacted to the required densities are preferred. The borrow material shall be free of roots and trash.

B. Classification: Imported borrow shall be of one of the acceptable soil classifications as listed below.

1. Acceptable: well-graded gravel(GW), poorly graded gravel (GP), silty gravel (GM), clayey gravel (GC), well-graded sand (SW), poorly graded sand (SP), clayey sand (SC), silty sand (SM).

2. Unacceptable: Peat (PT), organic clay or silt of medium to high plasticity

(OH), organic clay or silt of low plasticity (OL), fat clay (CH), silt (ML), lean clay (CL)and elastic silts (MH).

3.01 PREPARATION

A. Clearing and Grubbing: Strip from the borrow pit area all brush, trees, stumps, and roots. Timber greater than four inches in diameter shall be decked adjacent to the work site in such a manner that a self loader may reach logs without leaving the running surface of the road.

B. Borrow Areas: The borrow excavation slope must not exceed 1:1. Vertical slopes are not allowed. Upon completion, spread excess materials and dress the area with stable, rounded slopes.

DIVISION 2 SECTION 02317

SITE WORK BORROW EXCAVATION

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3.02 PLACEMENT

Borrow shall be placed according to Section 02322 - Excavation and fill for Structures.

PART 4: MEASUREMENT AND PAYMENT

4.01 METHOD OF MEASUREMENT

Consideration for this item shall be included in Section 02322 – Excavation and Fill for Structures.

END OF SECTION - 02317

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DIVISION 2 SECTION 02322

SITE CONSTRUCTION EXCAVATION AND FILL FOR STRUCTURES

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A. This section includes excavating, backfilling and compacting necessary to complete contract work as specified and as shown on the drawings. Working includes repairing road subgrades, reestablishing ditches, grading existing roadway, replacing and installing culverts. Work includes the hauling and disposal of excess soil and rock.

B. Related Sections

Clearing and Grubbing Section 02231

Borrow Excavation Section 02317

Culverts Section 02640

Crushed Aggregate Course Section 02722

Seeding & Mulching Section 02923

1.02 QUALITY ASSURNACE

A. Failure Criteria: Not limited to the following:

1. Settlement of backfill which occurs within a one-year period of final acceptance that results in a deformation of road surface of more than 1/8 inch. shall be remedied at the Contractor’s expense by appropriate remedial action approved by the CO.

2. Water running under culvert or through fill.

1.03 PROJECT AND SITE CONDITIONS

A. Excess Material: Useable excess excavated material shall be used in the embankment construction before the use of imported borrow is allowed. Borrow wasting is not permitted.

B. Unstable Material Below Pipe Elevation: Excavate unstable material below foundation grade and replace it with foundation fill.

C. Bedrock Material Above Aggregate Bedding: Cut the bottom of the excavation to the specified elevation.

D. Borrow Material Source: Obtain borrow material from a commercial or approved source if needed.

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E. Environmental Conditions:

1. Areas that have become saturated with oil, gasoline, or bituminous products shall be excavated to a depth 12 inches beyond the contaminated material; backfill with approved material. Dispose of contaminated materials in full accordance with DEQ regulations.

2. Storage of Excavated Material: Excavated material shall not be stored on the project site. All excavated material shall be endhauled to the designated waste area as shown on the drawings, these areas shall be contoured to drain properly. No sidecasting of material shall be permitted.

3. Water quality control techniques shall be implemented during construction and culvert installation to minimize turbidity and sediment from entering the stream.

These may include the following:

a. Use of high volume pumps (at least 10 gallons per minute) to divert streamflow.

All draft hoses being used shall be screened with a 3/32 inch woven wire mesh screen to prevent intake of juvenile fish.

b. Use of silt fence, or straw and geotextile to form temporary sediment detention ponds immediately downstream of the project and above the confluence of a higher order stream.

4. After the fill has been constructed, the Contractor shall line the toe of the fill with a silt fence and bales of straw. The bales will be staked firmly to the ground and laid end to end. To prevent sediment from entering the creek. This will not be required at the riprap headwalls.

5. Grade to produce a well-drained surface. Seed, fertilize, and mulch in accordance with Section 02923 – Seeding and Mulching.

A. Backfill/Embankment Material:

1. Common Material shall be a well-graded, compactable material free of excess moisture, muck, frozen lumps, roots, sod, or other deleterious material conforming to the following:

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a. For all structure and pipes other than plastic pipe:

1.) Maximum particle size 3 inches

2.) Soil classification, AASHTO M145 A-1, A-2, or A-3

b. For plastic pipe (CPP)

1.) Maximum particle size 1 ½ inches

2.) Soil classification, AASHTO M145 A-1, A-2-4, or A-2-5

2. Clay Seal: Material used for clay seals shall be classified by the USCS as inorganic high plasticity clay (CH), or other similar material available on-site and approved by

CO.

3. On-Site Excavation Material: Unless otherwise specified, suitable on-site excavation material shall be utilized for backfill/embankment.

4. Stockpiled material to be used for backfill/embankment shall be covered during times of adverse weather.

5. Materials removed in clearing and grubbing shall not be used for backfill.

B. Borrow material shall be conforming to Section 02317 – Borrow Excavation.

C. Bedding, Base and surface material shall be conforming to Section 02722 – Crushed

Aggregate Course and a concrete slurry mix conforming to Section 03306 – Minor

Concrete.

D. Seeding shall be conforming to Section 02923 – Seeding & Mulching.

E. Foundation Fill:

1. Geotextile Fabric shall be a woven polypropylene, LINQ Industrial Fabric’s GTF

375N, or the equivalent.

Properties ASTM Test Value

Grab Tensile Strength (lbs) D4632 425/350

Elongation (%) D4632 21/21

Trapezoidal Tear (lbs) D4533 145/125

Puncture (lbs) D4833 150

Mullen Burst (psi) D3786 650

UV Stability (% @ 500 hrs) D4355 90

Permittivity (sec -1

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Flow Rate (gpm/ft ) D4491 70

CBR Puncture D6241 N/A

AOS

(US Sieve #) D4751 40

AOS

(mm) D4751 0.425

Weight (oz/yd ) D5261 7.4

Thickness (mils) D5199 20

2. Aggregate material shall be a 3” open graded material conforming to Section 02722-

Crushed Aggregate Base Course.

A. Clearing and grubbing shall be according to Section 02231 – Clearing and Grubbing.

B. Dewatering: Keep the excavation dewatered so that installation of culverts, installation of backfill, bedding placement, slurry mix placement, and interior embedding material can be carried on under dewatered conditions. Dispose of excess water by using natural drainage ways near the site to the extent of their natural capacity causing no erosion, increased turbidity, or other damage. Comply with all Clean Water Act regulations.

3.02 EXCAVATION

A. OSHA Compliance: The contractor shall have a competent person on site at all times during excavation activities to be responsible for the excavation in compliance with

OSHA regulations as published in 29 CFR 1926.

B. The culvert shall be excavated to the lines and grades or elevations as shown on the drawings or as designated on the ground. Excavation shall be of sufficient size to allow for safety and provide proper width and depth with allowance made for placement and compaction of backfill material. The Contractor shall have a competent person on-site at all times to be responsible for the excavation in compliance with OSHA Regulations as published in 29 CFR 1926.

C. The use of explosives is prohibited.

D. Storage of excavated material shall be as designated by the COR. No excavated material shall be stored on the stream side of the roadway.

E. The culvert shall not be placed or backfilled until the excavation and foundation have been approved by the COR.

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3.03 FOUNDATION FILL

Soft, spongy, or unstable ground shall be excavated below the invert of the pipe to a minimum depth of two feet and a width of at least two times the culvert diameter;

(Diameter+4’) is maximum width. Geotextile fabric shall be placed in the bottom of the trench and extending to the top of the bedding aggregate according to manufacturer’s recommendation. Unsuitable material shall be replaced with three inch minus (-) crushed aggregate material.

3.04 BACKFILLING

A. All suitable excavated material shall be utilized as backfill or embankment. No excavated material shall be placed in the stream. All surplus material shall be disposed of at the designated waste disposal site. No excavated material shall be deposited in a manner that will endanger the partly finished structure.

B. After the culvert is placed, select material shall be placed, compacted and brought up evenly and simultaneously on both sides of the pipe, in layers not exceeding 12 inches in depth. Begin backfill at the center of the culvert and fill towards both ends. Along the sides of the culvert there shall be an area of compacted material at least as wide as 2 feet.

Backfill shall be compacted without damaging or displacing the culvert.

C. Moisture Content: During placing and compacting of fill material, the optimum moisture content -4 percent to + 2 percent as determined by AASHTO T 217 or

AASHTO T 239, unless otherwise approved by the COR, shall be maintained by wetting or drying.

D. Backfill density shall exceed 95 percent of the maximum dry density as determined by

AASHTO T 99, Method C or D and as measured by AASHTO T310.

E. After the culvert is backfilled, it shall be protected by an adequate cover, as recommended by the manufacturer, before heavy equipment is permitted to cross during roadway construction.

3.05 DISPOSAL AREA

A. Location of the designated waste disposal area is shown on the drawing.

B. The access road into the waste area should be cleared of brush. The site should be free of growing vegetation and scarified before piling waste material. The limits of the waste disposal area will be marked with flagging by the Government. The material shall not be placed outside the flagged limits.

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C. Embankment materials in disposal site shall be compacted by tracking construction equipment over the materials in 2 foot lift, two passes for each lift is required.

D. No nuclear testing is required.

E. Embankment materials shall be placed at least four (4) feet away from the existing ditch lines.

F. The surface of the embankment materials shall be slightly crowned. Edge of the embankment materials shall be sloped at 1-1/2 to 1. No embankment materials shall be left lodged against standing trees.

G. Upon the completion of the embankment material, seeding and mulched shall be placed.

3.06 SURFACE RESTORATION

Surface Restoration: Restore all surfaces to a condition as good or better than preconstruction condition.

4.01 METHOD OF MEASUREMENT: The work described in this section will be measured and paid on a lump sum basis.

4.02 BASIS OF PAYMENT: This pay item shall include all excavating, sediment control, borrow excavation, grubbing and clearing, and project waste disposal not included in other pay items. Payment will be made at the contract price as indicated in the Schedule of Items and will be full compensation for the work described in this section. Payment will be made under:

02322(01) Excavation and Fill for Structures Lump Sum

02322(02) Excavation – Unconsolidated Material Cubic Yard

02322(03) Excavation – Excess Bedrock Cubic Yard

END OF SECTION 02322

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DIVISION 2 SECTION 02323

SITE CONSTRUCTION GEOTEXTILE

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1.01 SUMMARY:

A. This section includes Geotextile to stabilize and reinforce an aggregate cover material of an unpaved roadway.

Excavation and Fill for Structure Section 02322

Crushed Aggregate Course Section 02722

1.02 DEFINITIONS: Minimum Average Roll Value (MARV): Property value calculated as typical minus two standard deviations. Statistically, it yields a 97.7 percent degree of confidence that any sample taken during quality assurance testing will exceed value reported.

1.03 SUBMITTALS

A. Certification: The contractor shall provide to the CO a certificate stating the name of the manufacturer, product name, style number and chemical composition of the filaments or yarns and other pertinent information to fully describe the geotextile. The Certification shall state that the furnished geotextile meets MARV requirements of the specification as evaluated under the Manufacturer’s quality control program. The Certification shall be attested to by a person having legal authority to bind the Manufacturer. Certifications from Private Label distributors will not be accepted.

B. Quality Standards: The contractor shall provide to the CO the Manufacturer’s Quality

Control Plan along with their current A2LA, GAI-LAP, AND ISO 9001:2008 certificates.

1.04 QUALITY ASSURNACE

A. Manufacturer Qualifications:

1. The geotextile Manufacturer shall have all of the following credentials:

a. ISO 9001:2008 Quality management System

b. Geosynthetic Accreditation Istitute (GAI) Laboratory Accreditation Program

(LAP)

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c. American Association for Laboratory Accreditation (A2LA)

B. The geotextile Manufacturer shall have a GAI-LAP and A2LA accredited laboratory at the location of…