A-01. Pryor Sewer Investigation-Technical Specs.docx

PART 2 – TECHNICAL PROVISIONS

Pryor Sewer Main Cleaning & Inspection

Table of Contents Technical Provisions

01220 - UNIT PRICES

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes administrative and procedural requirements for unit prices.

B. Engineer shall confirm actual quantities installed prior to submission of payment request.

C. It is the responsibility of the Contractor to arrange for inspection of work for confirmation of quantities installed.

1.2 DEFINITIONS

A. Unit price is price per unit of measurement for materials or services. Unit prices include all necessary material, labor, delivery costs, installation, insurance, overhead, and profit require to provide item, in place and ready for use.

B. Incidental Items: Incidental items are those items not listed on a bid schedule which are considered to be subsidiary to and a part of an applicable contract bid item. No payment shall be made for incidental items. The following is a partial list of common incidental items. This is not intended to be an all inclusive list of incidental items:

1. Construction Safety: Includes compliance to all applicable safety laws and regulations, as well as compliance with established construction safety practices.

2. Removal, transportation, and legal disposal of excess material as necessary.

3. Cleanup of site.

4. Delivery, freight, setup, takedown, and storage of materials and equipment.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 GENERAL

A. General units of measurement and abbreviations:

1. Each (ea): Payment per complete individual item installed.

2. Lump sum (ls): Payment of a single sum for completion of a set of items or activity in whole.

3. Linear feet (lf): Payment per foot, measured along the centerline of the item.

4. Vertical linear feet (vlf): Payment per foot, measured vertically.

5. Square feet (sf): Payment per area installed, measured along a flat plane of the item installed.

6. Square yard (sy): Payment per area installed, measured along a flat plane of the item installed.

7. Cubic yard (cy): Payment per loose cubic yard installed or excavated, unless otherwise noted.

8. Hour (hr): Payment per hour actively engaged in a specific activity or installation.

B. Additional clarification specific to some unit prices is provided below.

3.2 LIST OF UNIT PRICES

A. Mobilization:

1. Description: Includes but is not limited to transport of labor and equipment onto the jobsite, all setup and takedown, and all labor, equipment, and materials removal upon completion of the work. Contractor may apply for 50% of mobilization upon Notice to Proceed. The remaining payment can be made upon mobilization of adequate labor, equipment, materials, and supplies to begin work as scheduled.

2. Unit of measure: Lump sum B. Sewer main cleaning & inspection:

1. Description: Includes but is not limited to clearing of debris from the line by high pressure water from a water jetter, inspection via remote controlled video and provision of documentation per specifications.

2. Unit of measure: Linear feet.

C. Sewer manhole inspection:

1. Description: Includes but is not limited to cleaning designated sewer manholes and inspecting to determine structural condition, capacity of manhole to meet system needs, and documentation per specifications.

2. Unit of measure: Each.

END OF SECTION

Unit Prices Section 01200 Technical Provisions - Page 2

01330 - SUBMITTALS

GENERAL

SUMMARY

This Section includes requirements for submittals.

GENERAL

Only submittals approved by Engineer may be used for the services.

Furnish copies of final submittals to others as necessary for performance of the Work. Show distribution on transmittal forms.

SUBMITTAL SCHEDULE

The Submittal Schedule (Section 01331) provides a list of required technical submittals, arranged in numerical order by the applicable Section.

Additional submittals may be required elsewhere in the Contract Documents, including but not limited to the following.

Contractor’s Bid.

Contractor qualification information.

The schedule may be updated due to change orders or other modifications to the Contract.

Contractor is responsible for all submittals described in the Contract Documents, regardless of whether or not they are on the Submittal Schedule. Contractor shall inform the Engineer if any required submittals are missing from the schedule, and Engineer shall update the schedule accordingly.

The Submittal Schedule shall be used as a cover form for submittals as described by this Section.

SUBMITTALS

ACTION SUBMITTALS

Product Data: Collect information into a single submittal for each type of equipment.

Include the following information, as applicable:

Compliance with specified referenced standards.

Potential Awarded Contractor's Schedule: Submit Schedule for distribution prior to pre-commencement conference. Submit updated Schedule as necessary.

Subcontract List: If required, prepare a written summary identifying individuals or firms proposed for each portion of the Work, including those who are to furnish products or equipment fabricated to a special design.

INFORMATIONAL SUBMITTALS

Qualification Data: Prepare written information that demonstrates capabilities and experience of firm or person. Include a list of three (3) completed projects with project names and addresses, names and addresses of Engineers and owners, and other information specified.

EXECUTION

SUBMITTAL PREPARATION AND TRANSMISSION

Coordinate preparation and processing of submittals so that the Work will not be delayed. No extension of Contract Time will be authorized due to failure to transmit submittals in a timely manner.

Prepare submittals per the requirements of the applicable Section and as described in Part 2 of this Section.

Identify deviations from the Contract Documents on submittals. Note corrections and field dimensions.

Allow ten business days for processing of each submittal, with time beginning on Engineer’s receipt of submittal.

END OF SECTION

Submittals Section 01330 Technical Provisions - Page 3

01331 – SUBMITTALS SCHEDULE

01310

Schedule

Sewer inspection

33106

Pipe & manhole cleaning log

33106

Video inspection log

33106

Manhole inspection log

33106

Digital copy of sewermain inspection

Submittals Schedule Section 01331 Technical Provisions - Page 4

01770 - CLOSEOUT

GENERAL

SUMMARY

This Section includes requirements for contract closeout, including the following:

Submittals.

CLOSEOUT SUBMITTALS

General: Provide all submittals required by any specific Section of the Contract Documents.

All Closeout Submittals must be received and approved prior to final payment.

SUBSTANTIAL COMPLETION

Preliminary Procedures: Before requesting inspection for Substantial Completion, complete the following.

Prepare a list of items to be completed and corrected.

Advise Owner of pending insurance changeover requirements.

Remove temporary facilities from Project site.

Complete final cleaning.

Touch up and otherwise repair and restore marred exposed finishes to eliminate visual defects.

MATERIALS: Not Applicable

EXECUTION

FINAL CLEANING

Clean Project site of rubbish, waste material, and other foreign substances.

Rake disturbed grounds that are not planted or paved to a smooth surface.

Removed tools. Equipment, machinery, and surplus materials from Project Site.

Clean exposed equipment surfaces.

END OF SECTION

Closeout Section 01770 Technical Provisions - Page 5

33106 - SEWER COLLECTION SYSTEM CLEANING AND INSPECTION

GENERAL

SUMMARY

This Section includes sewermain cleaning, sewerline video inspection, and manhole inspection.

SUBMITTALS

Submittals to be provided prior to commencing the Work:

Description of proposed safety procedures, including confined entry for manholes.

Description of proposed sewerline cleaning and inspection procedures. Include proposed forms if different from forms provided in the Specifications.

Closeout submittals:

General: cleaning and inspection logs may be provided in paper form or in a digital pdf format.

Pipe and manhole cleaning log. Provide two copies.

Video inspection log. Provide two copies. Identify pipes using upstream and downstream MH, according to naming convention on attached working drawings.

Manhole inspection log. Provide two copies. Identify manholes according to the attached working drawings.

Video recording in DVD format: Provide two copies.

PRODUCTS (not applicable)

EXECUTION

SEWERMAIN AND MANHOLE CLEANING

Equipment Provide equipment which will provide a high velocity jet with a minimum pressure of 2000 psi at 18 gpm.

Recommended additional equipment includes a freshwater tank, debris tank, minimum of 500’ of hose with a 270° - 360° boom.

Provide nozzles capable of providing flow from a fine spray to a solid stream.

Provide a high-velocity gun for washing and scouring manhole walls and floor.

Cleaning Clean manholes upstream of pipe sections to be cleaned prior to cleaning pipe sections. Use high velocity gun to wash and scour manhole walls and floor.

Use high velocity jet to remove sand, silt, solids, rags, and other debris to allow video inspection of sewer mains.

Material removal: Remove all sludge, dirt, sand, rocks, grease, and other solid or semisolid material from downstream manhole of the segment being cleaned.

Material disposal: Legally disposed of all materials removed from mains and manholes.

Impassible mains:

If main is impassible from one direction, reset equipment at opposite manhole and attempt to clean main from other direction.

Notify the Engineer as soon as possible when encountering impassible mains. Make note of probable reason for impassibility.

Acceptance of cleaning: If video inspection shows cleaning to be unsatisfactory, Contractor shall reclean and inspect main until cleaning is shown to be satisfactory.

Record information required for closeout documentation in Paragraph 3.4

SEWERMAIN AND MANHOLE INSPECTION

Equipment: Provide a camera with a built in headlight, capable of travelling through 6” and larger sewer pipe during normal flow conditions. Camera shall be able to rotate to allow a clear picture of the entire periphery of the pipe. Equipment shall produce a clear videotape of the pipeline, from which pipeline defects can easily be recognized. Equipment shall be able to accurately measure the distance travelled within the sewer pipe.

Sewermain inspection: Move camera through pipeline at a moderate rate, stopping when necessary to document service taps, changes in condition, defects, and other items of note.

Provide documentation of inspection per Paragraph 3.4.

Impassible mains:

If inspection of a section of pipe cannot be completed from one manhole, set up equipment from manhole at other end of pipeline to clean from the opposite direction. If unsuccessful from the other end, it will be assumed the main is impassible.

Notify Engineer as soon as possible when encountering impassible mains. Make note of probable reason for impassibility.

Manhole inspection:

Visually inspect interior manholes for inflow and infiltration, cracking, spalling, and other defects or irregularities.

Visually inspect frame, cover, steps, and other components for defects.

Provide pictures or video of each manhole inspected, noting defects, irregularities, or other deficiencies.

SAFETY

Conform to all applicable Federal, State, and Tribal laws regarding confined space entry and general safety laws and regulations in devising safety plan.

Strictly conform to approved safety plan for entry into confined spaces.

CLOSEOUT DOCUMENTATION

Cleaning log:

Provide a log of daily cleaning activities, arranged chronologically.

At a minimum, include manhole name, pipe name, upstream and downstream manholes, flow direction, difficulties and other pertinent information as applicable.

Manhole inspection log:

Provide a printed log of manhole inspection, arranged by location.

Provide pictures or videos detailing manhole condition as applicable.

At a minimum, provide the following information:

Manhole # (from attached working drawings) Depth from rim to invert.

Connecting pipe numbers.

General description of location.

Defects, including observed or suspected infiltration or inflow.

Date and time inspected.

Sewermain inspection log:

Provide a videotape including video of each sewermain inspected. Include an oral account of activities as they are performed. Note the recorded distance on the video, along with service taps, deficiencies, changes in condition, and other notable events.

Provide a printed log of sewermain inspection.

At a minimum, provide the following information:

Pipe # Starting and ending manhole numbers. (from attached working drawings) Invert to rim depth of starting and ending manholes.

Date and time inspected.

Distance from start.

Description and severity of all service taps and deficiencies in conformance with NASSCO pipeline assessment & certification program coding standards.

Position of observation

END OF SECTION

Sewer Collection System Cleaning and Inspection Section 33106 Technical Provisions - Page 6