Specifications.pdf

BADL PMIS 246345

BADLANDS NATIONAL PARK

INTERIOR, SOUTH DAKOTA

Replace Two Manholes and Repair/Install Rings on 9 Manholes

PMIS 246345

PROJECT SPECIFICATIONS

NATIONAL PARK SERVICE

11/16/2020

TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS PAGE 3

SECTION 01 10 00 - DIVISION 01 SHORT FORM GENERAL REQUIREMENTS

DIVISION 02 – WASTEWATER

SECTION 02 31 0 - SITE EXCAVATION AND GRADING PAGE 13

WASTEWATER RENOVATIONS

SECTION 02 22 4 - SELECTIVE DEMOLITION WASTEWATER RENOVATION PAGE 16

MANHOLES/RISERS/RINGS PAGE 18

SPECIFICATIONS PAGE 21

MAPS PAGE 23

SECTION 01 10 00

DIVISION 1 SHORT FORM GENERAL REQUIREMENTS

PART 1 – GENERAL

ITEM 1 - DESCRIPTION OF WORK

1.1 Background: The goal of this project is to replace 2 manholes and replace/repair two manhole rings and lid ring at the Cedar Pass Lagoons; install additional riser rings on 5 manholes at Cedar Pass Lodge, and install two riser/rings on the main Cedar Pass Developed Area Wastewater System. This is due to one manhole having incorrect inverts and previous corrections have failed, damage has occurred to a riser lid ring of 1 manhole, 1 of the manholes concrete riser was broken; 5 of the manholes are below ground level, and 2 of the manholes are located in a high silt area. This project would allow proper flow of sanitary wastes from the housing complex, prevent sediment from flowing into the sewer lines, and prevent silt/mud from entering sewer lines and covering lids that will allow for ease of locating manholes for preventive maintenance measures.

1.2 Work Covered by the Contract Documents:

A. Project Locations: Ben Reifel Visitor Center- 20695 SD HWY 240, Interior SD, 57750; Cedar Pass Housing Area- 25225 Ben Reifel PL. Interior SD,57750 (Across the street next to the volle;

Cedar Pass Lodge- 20681 SD HWY 240, Interior SD, 57750; and across the road from Cedar Pass Fire Cache- 25270 Ben Reifel Rd. Interior SD, 57750.

B. Work consists of: Replacing two manholes in the park’s housing area, replacing/repairing two manhole rings and lid ring. Installing additional riser rings on five manholes and two riser/rings on main wastewater system line that were not replaced during the 2009 wastewater line replacement project.

C. All work will be performed under a single contract.

ITEM 2 - EXISTING UTILITIES

2.1 Existing Utilities: Notify Contracting Officer and utility companies of proposed locations and times for excavation.

2.2 Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government. If damage occurs to an unknown utility, repair utility. An equitable adjustment will be made in accordance with the Changes clause of the contract.

2.3 Water service shall be maintained throughout construction.

2.4 Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Government or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

2.4.1 Notify Contracting Officer not less than two days in advance of proposed utility interruptions.

2.4.2 Hours for Utility Shutdowns: Shut downs shall not exceed 2 to 3 hours. Temporary provisions will be needed by the Contractor for periods longer than stated allowance.

ITEM 3 - CONTRACTOR’S USE OF PREMISES

3.1 Conduct of Operations: At all times the contractor shall conduct his operations in conformance with the rules and regulations promulgated by the Secretary of the Interior for the National Park Service, and applicable park rules and regulations prescribed by the Park Superintendent.

https://www.nps.gov/badl/learn/management/superintendent-s-compendium.htm

A. No signs or advertisements (except those specified herein) shall be displayed on the construction site or within the park unless approved by the Contracting Officer.

B. Smoking is not permitted within any Federal building or within 25 feet of entrances, operable windows, or outdoor air intakes.

C. Public Use of Site: Contractor shall at all times conduct operations to ensure the least inconvenience to the public.

3.2 On-site work hours: Work shall be generally performed during normal business working hours of 7 a.m. to 4 p.m., Monday through Thursday, except when otherwise indicated.

A. Work on Saturdays, Sundays, Federal holidays, early morning, or at night may not be performed without prior consent from the Contracting Officer. Submit requests for work outside of the stated normal business hours to the Contracting Officer for approval at least 48 hours in advance of the work.

3.3 Contractor Use of Site:

A. General: Contractor shall have limited use of the site for construction operations. Limit use of premises to be identified by COR. Do not disturb portions of Project site beyond areas in which the Work is indicated.

B. Driveways and Entrances: Keep driveways, access roads, and entrances serving premises clear and available to Government, Government's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials. Schedule deliveries to minimize use of driveways and entrances.

C. Limit site disturbance, including earthwork and clearing of vegetation, to:

a. 50 feet beyond surface walkways, patios, surface parking, and utilities less than 12 inches in diameter

b. 50 feet beyond primary roadway curbs and main utility branch trenches

c. 100 feet beyond constructed areas with permeable surfaces (such as pervious paving areas, storm water detention facilities, and fields) that require additional staging areas in order to limit compaction in the constructed area.

D. Security and Protection facilities installation:

1. Environmental Protection: Provide protection, operate temporary facilities, and conduct construction in ways and by methods that comply with environmental regulations and that minimize possible air, waterway, and subsoil contamination or pollution or other undesirable effects.

1. Cleaning of Equipment: The Contractor shall ensure that prior to moving on to the Project Area, all equipment, is free of soil, seeds, vegetative matter, or other debris that could contain or hold seeds. Ensure that all equipment has been pressure washed and is free of exotic species prior to start-up of operations and moving of equipment to Project Area. Equipment shall be considered free of soil, seeds, and other debris when a visual inspection does not disclose such material. Disassembly of equipment components or specialized inspection tools are not required.

2. Tree and Plant Protection: Provide Tree Protection fence at drip line of trees impacted in construction area. Coordinate with COR.

3. Pest Control: Follow NPS requirements and practices to minimize attraction and harboring of rodents, roaches, and other pests and to perform extermination and control procedures at regular intervals so Project will be free of pests and their residues at Substantial Completion.

Perform control operations lawfully, using environmentally safe materials.

3.4 Storage - Staging Areas:

A. Confine Storage of materials and equipment to the project area. Contractor can store

Manhole materials in Maintenance Yard.

3.5 Preservation of Natural Features: N/A

3.6 Hauling Restrictions: Must meet South Dakota and Jackson County guidelines for load limits and requirements on county road access and National Park roads.

3.7 Housekeeping:

A. Keep project neat, orderly, and in a safe condition at all times. Store and use equipment, tools, and materials in a manner that does not present a hazard. Immediately remove all hazardous rubbish. Do not allow rubbish to accumulate. Provide onsite containers for collection of rubbish and dispose of it at frequent intervals during progress of work.

B. All construction waste becomes property of the contractor and shall be disposed of or recycled at an approved landfill or recycling center.

3.9 Photo Documentation:

All photos shall be in focus, show maximum range of depth of field general photo and then close up detail photo as needed. Submit photo documentation electronically within 7 days or as approved by COR.

A. Existing Condition Images: Before starting construction, take color, dated, digital images of project site and adjacent property/roads/etc. that may be impacted by construction activity/traffic.

Include existing items to remain or be salvaged from different vantage points and with context for location identification.

B. Construction Images:

1. Document all sub-surface work/ trenches etc. prior to backfill with enough overall field view to show location and then details.

2. Maintain organized index for photos with date, description, etc.

3. Additional images as needed when questions or emergency situations occur. Submit within 24 hours.

3.10 Fire and Life Safety:

As a minimum, conduct one weekly 15-minute "toolbox" safety meetings. These meetings shall be conducted by a foreman or supervisor and attended by all construction personnel at the worksite. Topics need to coincide with work scheduled for the following week. Document and submit meeting minutes to the Contracting Officer within one day after the meeting.

A. Comply with the requirements of NFPA 241 (Standard for Safeguarding Construction, Alteration, and Demolition Operations).

B. Store and handle hazardous materials in accordance with manufacturer’s and OSHA 29CFR1926 Subpart D requirements. Maintain readily available, on site, MSDS/Safety Data Sheets (SDS) for each chemical.

i. Immediately report all spills of hazardous materials to the park.

ii. Maintain a spill emergency response kit.

iii. Train employees how to respond to a spill and use the emergency response kit.

3.11 Noise and Acoustics Management:

A. Noise Control: Perform demolition and re-roof operations to minimize noise. Perform noise-producing work in less sensitive hours of the day or week as directed by the Contracting Officer.

B. Repetitive and/or intermittent, high-level noise: Permitted only during Daytime.

1. Do not exceed the following dB(A) limitations at 50 feet:

Sound Level in dB(A) Time Duration of Impact Noise 70 More than 12 minutes in any hour 80 More than 3 minutes in any hour

2. Maximum permissible construction equipment noise levels at 50 feet:

EARTHMOVING dB(A) MATERIALS HANDLING dB(A) Compressors 75 Pneumatic Tools 80 Pumps 75 Saws 75 Generators 75 Vibrators 75

C. Ambient Noise:

1. Maximum noise levels (dB) for receiving noise area at property line shall be as follows:

a. Residential receiving area :

Daytime: 65 dB Nighttime: 45 dB

b. Commercial/Industrial receiving area:

Daytime: 67 dB Nighttime: 65 dB

ITEM 4 - COMMENCEMENT, PROSECUTION, AND COMPLETION

4.1 The Contractor shall commence work in accordance with the terms and conditions of the contract.

(Block 11 of the SF 1442 or relevant section of the award document)

ITEM 5 - EXAMINATION OF THE SITE

5.1 All bidders are urged to visit the job site and examine existing conditions before submitting bids. All bidders will be held to have the same knowledge concerning the site and the on-ground conditions as if they had inspected the job site. No change orders will be approved for work obvious during a site visit.

Please see FAR 52.236-27 - Site Visit (Construction).

ITEM 6 - ABBREVIATIONS

6.1 The list of abbreviations, which may be used in the Construction Specifications or Special Provisions, refer to the organizations and specifications of the organizations may be found at the below https://www.nps.gov/orgs/1671/do-business-with-us.htm

ITEM 7 - ACCIDENT PREVENTION

7.1 Description: The work of this section consists of establishing and implementing an effective accident prevention program and providing a safe environment for all personnel and visitors.

A. It is the Contractor's responsibility to require all those working on or visiting the site to wear hard hats and other necessary personal protective equipment in good repair at all times. As a minimum, maintain four hard hats and all other APP required equipment.

7.2 Submittals:

A. Accident Prevention Program: At the preconstruction conference submit for approval an accident prevention program. The program shall include:

1. Name of responsible supervisor to carry out the program

2. First aid procedures

3. Training, both initial and continuing

4. Planning for possible emergency situations

5. Contractor to identify nearest location of medical facility for emergencies

6. Recognition that work will be performed in remote areas with limited communication or cell phone coverage https://www.nps.gov/orgs/1671/do-business-with-us.htm

B. Meeting and Inspection Reports: Safety Meetings: As a minimum, conduct 15 minute "toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the worksite. Submit a report of safety meetings and inspections.

7.3 Qualification of Employees:

A. Ensure that employees are physically qualified to perform their assigned duties in a safe manner to include operators of vehicles and equipment. Provide operating instructions for all equipment.

B. Do not allow employees to work whose ability or alertness is impaired because of drugs, fatigue, illness, intoxication, or other conditions that may expose themselves or others to injury.

7.4 Accident Reporting: The Contractor shall report all accidents to the Contracting Officer or designee as soon as possible and assist the Contracting Officer and other officials as required in the investigation of the accident.

7.5 First Aid Facilities: Provide adequate facilities for the number of employees and the type of construction at the site.

7.6 Emergency Instructions: Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

7.7 Protective Equipment: It is the Contractor's responsibility to require all those working on or visiting the site to wear necessary protective equipment at all times.

7.8 Hazardous Materials: It shall be the responsibility of all operators and contractors, functioning within the park to properly cleanup, mitigate and remediate if necessary, all unauthorized discharges of hazardous materials or non-hazardous chemical and biological products released from fleet and/or other support vehicles or stationary sources. Response shall be consistent with guidelines established by federal, state and local regulations, and as outlined within the operator's Safety or Hazardous Materials Business Plan.

A. If a spill, leak or other release occurs, the operator shall as soon as possible, without impeding cleanup, notify the National Park Service Emergency Dispatch.

ITEM 8 - PRECONSTRUCTION CONFERENCE: See FAR 52.236-26

ITEM 9 - SUBMITTALS

9.1 General Submittal Procedures:

A. General: Prepare and submit submittals required by individual Specification Sections. Types of submittals are indicated in individual specific sections.

1. CM-16 Transmittal Form: All submittals shall be transmitted via electronic email using

National Park Service form CM-16 form. The form will be provided by the Contracting

Officer. No action will be taken on a submittal item unless accompanied by the CM-16 transmittal form. Submit to the Contracting Officer.

B. Submittal List: The intent is to provide an overall summary of submittal requirements and not a comprehensive list. The requirements of the individual Specification Sections, terms and conditions of the Contract still apply regardless of what is shown on the submittal list.

C. Preconstruction Conference Submittal: The following items shall be submitted a minimum of one week prior to the Preconstruction Conference. If all of these documents have not been received one week prior to the scheduled Pre-Construction Conference date, the conference will be cancelled, Notice to Proceed will not be issued, and the Contracting Officer will consider other contractual remedies. Work shall not commence until written Notice to Proceed has been issued. Contracting Officer will notify Contractor of tentative date for the Pre- Construction Conference:

1. Letter designating Project Superintendent.

2. Construction Schedule.

3. A comprehensive breakdown of the Schedule of Values.

4. Accident Prevention Plan (see section 7 of this document).

5. A list of Subcontractors for this project.

6. Written statements from subcontractors certifying compliance with applicable labor standard clauses (SF1413).

7. Satisfactory evidence of liability insurance coverage and workman’s compensation for the

Contactor and all subcontractors.

8. Waste Management Plan.

9. Quality Control Plan.

10. Temporary Storm Water Pollution Prevention Plan (SWPP or UPPP).

9.2 Product Data: Contracting Officer will provide sample cover sheet.

A. Product Data: Provide component construction, anchorage method, hardware, etc.

B. For submittals specified above, forward submittals to Contracting Officer at least 15 days before need for approval (depends on length of project).

C. After approving submittals, Contracting Officer will return one copy to the Contractor. If submittals are not approved, Contracting Officer will return all copies to Contractor with reasons for rejection. Resubmit, identifying changes. Any work done before approval shall be at Contractor's own risk.

9.3 Approved Equals: Refer to FAR 52.211-6 - If an item in this solicitation is identified as “brand name or equal” or lists more than 3 manufacturers, the purchase description reflects the characteristics and level of quality that will satisfy the Government’s needs. The salient physical, functional, or performance characteristics that “equal” products must meet are specified in the solicitation or relevant specification.

A. For each item proposed as an “approved equal,” submit supporting data, including:

1. Drawings and samples as appropriate.

2. Comparison of the characteristics of the proposed item with that specified.

3. Changes required in other elements of the work because of the substitution.

4. Name, address, and telephone number of vendor.

5. Manufacturer’s literature regarding installation, operation, and maintenance, including schematics for electrical and hydraulic systems, lubrication requirements, and parts lists. Describe availability of maintenance service, and state source of replacement materials.

B. A request for approval constitutes a representation that Contractor:

1. Has investigated the proposed item and determined that it is equal or superior in all respects to that specified.

2. Will provide the same warranties for the proposed item as for the item specified.

3. Has determined that the proposed item is compatible with interfacing items.

4. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution.

5. Waives all claims for additional expenses that may be incurred as a result of the substitution.

C. Approved Equals will be evaluated and approved/disapproved during the submittal process.

9.4 Progress Schedules: As soon as possible after Notice of Award and before beginning any work, submit Progress Schedule. Contracting Officer will review the Progress Schedule for format and content.

Submit four copies of Progress Schedule (normally in bar chart form) showing estimated starting and completion dates for each part of the work. The first progress payment will not be issued until an acceptable progress schedule is submitted. The following information must accompany submission of progress schedules prior to processing any pay application:

A. Daily/weekly progress reports during construction as part of the administration process.

B. Schedule of Values: Breakdown each lump-sum item into component work activities used in the schedule, for which progress payments may be requested. The Schedule of Values will form the basis for payment. The work activities broken out within the schedule of values shall be integrated into and made a logical part of the construction baseline schedule submitted under this specification. The total costs for the component work activities shall equal the contract price for that lump-sum item. The Contracting Officer may request data to verify accuracy of dollar values.

A sample Schedule of Values will be provided by the Contracting Officer.

ITEM 10 – TEMPORARY SERVICES

10.1 Description: The work of this section consists of providing temporary services required for Contractor's performance of the work of this Contract.

10.2 Fire Prevention and Protection:

A. Hazard Control: Take all necessary precautions to prevent fire during construction. Provide adequate ventilation during use of volatile or noxious substances.

ITEM 11 - PROJECT CLOSEOUT

11.1 Description: The work of this section consists of final cleanup, closeout submittals, final inspection procedures, and safety precautions.

11.2 Cleaning: Remove all tools, equipment, surplus materials, and rubbish. At time of final inspection, project shall be thoroughly clean and ready for use.

11.3 Substantial Completion and Final Inspection: Submit written certification that project is substantially complete, and a final inspection must be requested to the Contracting Officer in writing. The Contracting Officer or designee will make an inspection within 10 days of receipt of request or at a mutually agreeable time.

A. If the work is determined to be substantially complete, following the final inspection, the.

Contracting Officer will prepare a Punch List and issue a Letter of Substantial Completion.

B. If the work is not determined to be substantially complete following the final inspection, the

Contracting Officer will notify Contractor in writing. Contractor shall request a new final inspection after completing the work. Re-inspection costs may be charged against the Contractor in accordance with the Inspection of Construction contract clause.

C. Contractor shall complete the Punch List within 30 calendar days, documented weather permitting.

D. If Contracting Officer determines that the work is not substantially complete; he will immediately notify Contractor in writing, stating reasons. After completing work, Contractor shall resubmit certification and request a new final inspection. Re-inspection costs may be charged against the Contractor in accordance with the Inspection of Construction contract clause.

E. If Contractor completes all items of work on the Punch List and all contractually required items, Contracting Officer will issue Letter of final acceptance of work.

F. If the Contractor fails to complete the work within the time frame, the Contracting Officer may correct the work with an appropriate reduction in contract price or charge for re-inspection costs in accordance with the Inspection of Construction contract clause.

G. Disposition of any permits and warranties required by the specifications in this section.

11.4 Acceptance of the Work: After all deficiencies have been corrected, a Letter of Acceptance will be issued. A Release of Claims document must be executed and submitted to the Contracting Officer before final payment can occur.

11.5 Warranties

A. Construction Warranty shall be based on date of Substantial Completion.

B. Provide All Warranty information of products installed organized by Division. All contact information, extents and conditions shall be clearly noted as well as date of overall project Substantial Completion.

C. Information shall include operation and maintenance manuals for each warranted material.

PART 2 – PRODUCTS (NOT USED)

PART 3 – EXCUTION (NOT USED)

END OF SECTION

SECTION 02310

SITE EXCAVATION AND GRADING

WASTEWATER RENOVATIONS

PART 1 GENERAL

DESCRIPTION

Work consists of the following: Demolition and replacing two manholes in the parks housing area, replacing two manhole rings and lid rings at Cedar Pass Lagoons, installing 5 additional riser rings at Cedar Pass Lodge, and installing two riser/rings on the main Cedar Pass Developed Area Wastewater System line.

• The work of this section consists of site excavation and grading.

CLASSIFICATION

Rock excavation consists of material that cannot be excavated without blasting or using rippers, including boulders having a volume of 2 cubic yards or more.

All other excavation under this section will be considered unclassified regardless of the nature of material encountered.

PROJECT CONDITIONS

Maintain fills, slopes, and ditches within the limits of the new construction until final acceptance. Repair damaged areas at no additional expense to the Government.

PART 2 PRODUCTS

EXISTING EMBANKMENT MATERIAL

Material for embankment construction shall be free from frozen material, debris, muck, detrimental quantities of organic materials, and other unsuitable materials.

IMPORTED BORROW

Clean, readily compactible soil or soil aggregate, with all particles passing a 1-inch square opening and not more than 35 percent by weight passing a No. 200 sieve, as determined by ASTM D422-63. The portion of material passing the No. 40 sieve shall have a plasticity index of not more than 10, as determined by ASTM D4318-95. Use all suitable existing embankment material before importing borrow.

WATER

NOT USED.

PART 3 EXECUTION

STRIPPING AND STOCKPILING TOPSOIL

Strip topsoil within the construction limits to a depth approved by the Contracting Officer. The Contracting Officer will designate locations for stockpiles. The maximum haul distance, pick-up point to stockpile, will not exceed 1000 feet.

FIELD QUALITY CONTROL – Not used

EXCAVATION

Keep excavation free from water during construction. As directed, stockpile excavated material to be used in embankment construction. Excavate rock to a minimum depth of 6 inches and a maximum depth of 12 inches below subgrade.

EMBANKMENT CONSTRUCTION

Before placing embankment, scarify ground surface to provide ample bond between old and new material. Place embankment material in layers not exceeding 8 inches loose measurement. Compact each layer before placing the next layer. As the compaction of each layer progresses, continually level and manipulate to ensure uniform moisture and density. Add water to obtain optimum moisture content.

COMPACTION

Compact the top 2.5 feet of embankments supporting walks and other structures to 95 percent of the maximum density as determined by ASTM D698-91, at plus or minus 2 percent of the optimum moisture content.

Compact embankments below the top 2.5 feet and embankments not supporting walks or other structures to 90 percent of maximum density as determined by ASTM D698-91, at plus or minus 2 percent of the optimum moisture content.

SUBGRADE TOLERANCE

The finish subgrade elevation shall not vary above or below the theoretical grade more than 0.1 foot.

PLACING TOPSOIL

Section 02911.

DISPOSAL

Dispose of all surplus and unsuitable material as specified by the Contracting Officer and Facility Manager.

PART 4 MEASUREMENT AND PAYMENT

SITE EXCAVATION AND GRADING

Payment will be included in the bid item to which this work relates.

SECTION 02224

SELECTIVE DEMOLITION

WASTEWATER RENOVATION

PART 1 GENERAL

DESCRIPTION

Work consists of the following: Demolition and replacing two manholes in the parks housing area, replacing two manhole rings and lid rings at Cedar Pass Lagoons, installing 5 additional riser rings at Cedar Pass Lodge, and installing two riser/rings on the main Cedar Pass Developed Area Wastewater System line.

• The work under this section consists of demolition and removal of the existing manhole.

SUBMITTALS

Submit schedule showing sequence of work and methods of demolition. Include schedule for shutting off and capping utilities and re-establishing utility services.

QUALITY ASSURANCE

Comply with safety requirements for demolition, ANSI A10 .6-90.

PROJECT CONDITIONS

Keep dust and dirt pollution to a minimum.

Ensure safety of persons in demolition area. Provide temporary barricades as required.

Provide adequate fire protection. Keep area clear of hazardous substances and debris.

Maintain access to exits at all times.

SCHEDULING

Complete demolition that might damage new construction before starting new work.

PART 2 PRODUCTS NOT USED.

PART 3 EXECUTION

PREPARATION

Protect nearby structures and vegetation as necessary.

Cap or disconnect utilities. Provide bypass connections as necessary to maintain utility service to occupied areas of facilities. Remove utilities that are no longer required.

DEMOLITION

Work systematically from top downward.

Demolish concrete and masonry in small sections.

NOT USED

RESTORATION AND CLEAN-UP

Repair and clean adjacent surfaces damaged or soiled by demolition work.

Restore utility service to normal operation.

Remove equipment, temporary protection and barriers, and debris. Dispose of unsalvageable material at an offsite disposal site approved by the Park.

PART 4 MEASUREMENT AND PAYMENT

SELECTIVE DEMOLITION

Payment will be included in the bid item to which this work relates.

Manholes/Risers/Rings

Work consists of the following: Demolition and replacing two manholes in the parks housing area, replacing two manhole rings and lid rings at Cedar Pass Lagoons, installing 5 additional riser rings at Cedar Pass Lodge, and installing two riser/rings on the main Cedar Pass Developed Area Wastewater System line.

Manhole specifications:

• All manhole barrel and cone sections shall be numbered and/or measured by the Contractor prior to installation to ensure that each furnished manhole component is correct for that location and that the finished manhole will be to current grade of existing manhole.

• Standard manholes are manholes which have a depth, measured from the invert of the outlet pipe to the top of the cover, greater than 7 feet. Extra manhole depth shall be considered as invert to cover depth of greater than 8 feet. Shallow manholes shall have a depth of 7 feet, or less. Standard manholes shall be constructed of 5-inch thick precast concrete manhole and cone sections, 8-inch concrete base slab, with precast concrete adjustment rings and cast-iron frames and covers. Shallow manholes shall be constructed of 5-inch thick precast concrete sections with 6-inch reinforced concrete cover and base slabs. The invert channels shall be smooth and U-shaped with a semicircular section conforming to the inside of the adjacent sewer section and vertical sidewalls. A minimum invert elevation drop of one-tenth of a foot from the entrance to the outlet shall be provided in all manholes where there is a change in direction or a change in slope. Changes in direction of flow shall be made with a smooth curve of as large radius as the size of the manhole will permit. Changes in sizes and grade of the channels shall be made gradually and evenly. The invert channels may be precast, formed directly in the concrete, or may be constructed by laying a full section of sewer pipe through the manhole and cutting out the top half after the surrounding concrete has hardened.

• The floor of the manhole outside the channels shall be smooth and shallow slope towards the channels not less than 1 inch per foot and not more than 2 inches per foot. Drop inside the manhole shall not exceed 2 feet, measured from the invert of the inlet pipe to the invert of its corresponding channels. A channel must be formed in the concrete of ogee shape, so there is no free drop. Manholes shall be provided with copolymer polypropylene coated steps not less than 12 inches in width built into and thoroughly anchored in walls and spaced approximately 16 inches apart. The steps shall be constructed of a minimum ½ inch grade 60 steel reinforcing rod.

The steps shall be coated by the manufacturer and shall be installed according to the manufacturer’s recommendations.

• Concrete: All concrete used in manholes shall have a compressive strength of not less than

4,000 pounds per square inch at 28 days of age.

• Installation: Manholes shall be installed at the locations and elevations of existing manholes, or as directed by the COR. Mortar for jointing shall consist of 1-part Portland cement and 2 parts of fine sand. Adjustment rings shall be grouted in place when the manhole is constructed.

• Technical Specifications

Precast manhole sections/joints shall be sealed inside and out with a plastic cement putty, or a non-shrink hydraulic cement mortar. A “O-Ring” seal or flexible gasket, hydrophilic butyl rubber water stop with mastic wrap may be used for joining the manhole sections. All manholes shall have a least 1 adjustment ring. All manholes shall be free of visible leakage and shall pass the hydrostatic tests, “Gravity Sewer Line Tests.” If precast concrete manhole bases are used, they shall be bedded in a minimum of 6 inches of compacted clean sand or crushed rock to prevent future settlement.

• Connection of PVC sewer pipe to manholes shall be made by the use of approved flexible boot style pipe to structure connection equal to PSX Positive Seal Gasket System as manufactured by Press-Seal Gasket Corporation.

• Frames and Covers: Frames and covers shall be made of cast-iron. The manhole covers shall be cast with the lettering “SANITARY SEWER.”

1) CPHH- Manhole 19-

a. Approximately 10 feet 2 inches deep

b. Approximately Three 8 inch and One 4-inch line come into this manhole.

c. Main collection point for Ben Reifel Visitor Center, Park Administration Buildings and Park Housing

d. Brick bottom design

e. Location: Cedar Pass Housing Area- 25225 Ben Reifel PL. Interior SD,57750

(next/near to the volleyball court)

2) CPHH- Manhole 20-

a. Approximately 6 Feet 11 inches deep

b. Installed with wrong inverts

c. Brick bottom Design

d. Location: Cedar Pass Housing Area- 25225 Ben Reifel PL. Interior SD,57750

(next/near to the volleyball court)

3) DIV-V-2 and DIV-V-3-

a. Riser Lid Ring Damage

b. Concrete Riser broken

c. Location: Cedar Pass Lagoons (Located on access road past the Maintenance

Building complex 25291 Ben Reifel Rd. Interior, SD 57750)

4) CPL-MH-2, CPL-MH-3, CPL-4, CPL-MH-5, CPL-MH-6, & CPL-MH-7-

a. Below Ground Level

b. Need approximately 24-inch risers to bring lids up to ground level

c. Location: Cedar Pass Lodge Wastewater System (20681 SD HWY 240 Interior, SD, 57750)

5) CPHH- Manhole 11 and 13-

a. Located in high silt area

b. Need approximately 36-inch concrete risers to bring manholes above high silt area

c. Location: Across the access road from the Cedar Pass Fire Cache. (25270 ½

Ben Reifel Rd. Interior, SD 57750)

Maps

- Ben Reifel Visitor Center and Cedar Pass Lodge Location

- Manholes located at Cedar Pass Lodge, Ben Reifel Visitor Center and along the road located between the two locations

-Location areas of Manholes to be replaced/fixed

-Direction toward Lagoons (Further down road past Maintenance Shop area on the left side of the road)