SPECIAL PROVISIONS

These Special Provisions modify, change, delete from or add to Sections contained in Division 1, General Requirements of the Standard Specifications and contain general modifications applicable to all Contract Documents. Where Paragraph(s) or Section(s) contained in Divisions 1 to 13 are modified or deleted by these Special Conditions, the unaltered provisions of the Paragraph(s) or Section(s) remain in effect.

Section 01110 - SUMMARY OF WORK

PART 1 GENERAL

1.1 DESCRIPTION

A. DELETE in its entirety, SUBSTITUTE

A. Section includes general requirements for the Work, which includes repairing, rehabilitating or replacing defective or aging sewer mains, laterals and manholes using technologies as specified in the Contract Documents. The work may also include the construction or replacement of new water mains and services in the vicinity of the proposed sanitary sewer work.”

1.2 COMMISSION WORK SCHEDULE

C. Permission to Work

1. DELETE all references to “Contract Documents”, SUBSTITUTE with references to

“Task Order.”

ADD

6. Work hours in accordance with permit.

1.7 CONTRACTOR RESPONSIBILITIES

“B. PERMITS

1. Maryland State Highway Administration

a. Work within Rights Of Way: Follow MSHA Master Permit issued to

WSSC, the Contract Documents, and specified herein.

1) Vehicular traffic: Maintained at all times.

2) Working hours:7 a.m. to 5 p.m. when not affecting traffic and 9 a.m. to 3 p.m. when working in or near normal traffic patterns.

a) Do not perform work within right-of-way on weekends, National holidays or days before and after National holidays.

b. Plate Open Excavation:

1) Provide required warning signs and remove equipment and material a minimum of 30 feet from the edge of the existing traveled pavement during non-work periods.

2) Equipment and material not allowed in median of divided highway when not in use.

3) Do not park private automobiles and nonessential vehicles on right-of-way. d. Remove promptly mud and debris tracked or spilled on the roadway.

4) Take precautions, particularly in freezing temperatures to keep water off traveled roadway.

5) Do not drive or tow equipment with metallic treads on paved surfaces.

6) Do not drag or skid material or equipment without wheels across paved surfaces.

7) Do not place or stockpile excavated or backfill material on improved surfaces.

c. Sheeting:

1) Required for trenches in paved roadways and where the distance of roadside edge of a longitudinal trench is less than depth of trench.

2) Roadside edge: Sheeted and braced against the opposite side of trench. c. Wood sheeting: Left in place and cut 1 foot below finished grade.

3) Metal sheeting: May be removed as tamped backfill progresses.

4) Excavations located within paved sections and shoulder area:

Backfilled in not more than 6-inch lifts.

d. Traffic Lane and Shoulder Closures:

1) Scheduled with District 3 Office of Maryland State Highway Administration.

2) Requests for closures:

a) Submitted as soon as a reliable schedule for the anticipated work is established.

b) Requests must be received at least 2 hours before any closure.

c) Obtain closure scheduling procedures and forms from MSHA District 3 Office.

e. In addition to maintenance of traffic requirements in the MSHA

Master Permit and Contract Documents, follow requirements of the MSHA Traffic Control Standards located in the Attachment Section.

f. Trenches across Roadways and Shoulders:

1) Backfilled entirely with crushed stone and be placed in horizontal layers not to exceed 6 inches in depth.

2) Uniformly tamp each layer to be and compacted by means of a mechanical or vibratory compacting device.

g. Closure of two lanes may require night work. Night work will be done at no cost to the Commission.

2. Prince George's County.

a. Pre-construction meeting: Contractor, DPW&T Inspector, and Engineer.

1) Engineer will arrange by calling a Department Dispatcher at 301-883-5730 at least 48 hours before start of construction.

b. Roadway:

1) Maintain vehicular traffic.

2) Working hours: 9 a.m. to 3:30 p.m. Monday through Friday, unless altered by a County permit or County Inspector.

3) During non-working hours: Both sides to remain open.

c. Perform work following Prince George’s County “Policy and Specification for Utility Installation and Maintenance Permits, February 2007.”

3. Montgomery County.

a. Work within Roadways; Follow the Montgomery County Blanket

Utility Permit issued to WSSC, the Contract Documents, and specified herein:

1) Keep adjacent and adjoining streets free and clean of dirt and debris.

2) Do not deposit or store excavated material on street or sidewalk area.

3) Do not store materials or equipment on roadway or sidewalk surfaces during non-work periods.

4) Working hours in arterial roadways (snow emergency routes) are 9 a.m. to 3:30 p.m. Work hours in secondary or tertiary roadways are stipulated by the Permitting County or County Inspector.

5) Maintain full roadway widths at all other times unless approved by MCDOT. Maintain two-way vehicular traffic on all roads at all times.

6) Backfill and provide temporary paving or plate excavations during non-work hours unless permission is granted, in writing, to otherwise redirect vehicular traffic.

7) Pavement excavations: Limited to not more than half the paved roadway at any time.

8) Notify property owners before crossing existing entrances and driveways, and provide access during non-work hours.

b. Traffic control:

1) Follow the appropriate traffic control sketch located in the Attachment Section or Engineer’s direction.

2) When traffic control requirements are provided for a specific site: Follow those requirements and Engineer’s direction.

4. Maryland National Capital Park and Planning Commission

a. Notify Department of Parks Inspection Supervisor at (301) 495-

2558, at least 48 hours before start of construction and on completion of the work on Park property.

b. Do not remove, clear, or trim trees outside the work limits without specific approval of the MNCP&PC Inspector. Allowable within the work limits: Removing, clearing, or trimming of trees, unless otherwise noted herein or on the Drawings.

c. Restore disturbed areas to the original grades and contours.

d. will notify the following MNCPPC representatives 48 hours in advance of pre-construction conference.

Athletic Field Coordinator (301) 495-2544 Senior Environmental Planner (301) 495-4541 Volunteer Coordinator for Natural Surface Trails (301) 495-2543

e. Staked or flagged work limits before pre-construction meeting.

f. Access to work area is via the construction alignment only.

g. Storage of construction equipment or material prohibited on Park property.

5. Department of Natural Resources, Maryland Forest Service

a. Prune roots and trim overhead branches as needed for machine clearance, contact WSSC Environmental Group in advance for specific requirements and limitations. or( omit the option 2 that does not apply)

b. No tree removal: Contact WSSC Environmental Group in advance for approval if it is determined during construction that tree(s) need to be removed.

c. Tree care work: By a Roadside Tree Care Expert.

d. 48 hours in advance of tree care work.

1) WSSC Environmental Group (301-206-8077).

6. Incorporated Cities and Towns

MONTGOMERY COUNTY MUNICIPALITIES

Town of Barnesville

Town of Brookeville

Town of Chevy Chase

Town of Chevy Chase View

Town of Chevy Chase Village

The Village of Chevy Chase, Section 3

The Village of Chevy Chase, Section 5

Village of Drummond

Village of Friendship Heights

City of Gaithersburg

Town of Garrett Park

Town of Glen Echo

Town of Kensington

Town of Laytonsville

Village of North Chevy Chase

Town of Poolesville

City of Rockville

Town of Somerset

Town of Oakmont

City of Takoma Park

Town of Washington Grove

PRINCE GEORGE’S COUNTY MUNICIPALILTIES

Town of Berwyn Heights

Town of Bladensburg

City of Bowie

Town of Brentwood

Town of Capitol Heights

Town of Cheverly

City of College Park

Town of Colmar Manor

Town of Cottage City

City of District Heights

Town of Eagle Harbor

Town of Edmonston

Town of Fairmount Heights

Town of Forest Heights

City of Glenarden

City of Greenbelt

City of Hyattsville

Town of Landover Hills

City of Laurel

Town of Morningside

City of Mount Rainier

City of New Carrollton

Town of North Brentwood

Town of Riverdale Park

City of Seat Pleasant

Town of University Park

Town of Upper Marlboro

1.11 LUMP SUM CONTRACTS

“A. Refer to measurement and payment in Section 01271.”

1.16 MOBILIZATION

“A. Refer to measurement and payment in Section 01271.”

B. DELETE in its entirety

PART 4 MEASUREMENT AND PAYMENT

Delete Section 4.1 in its entirety.

ADD FOLLOWING: “Except for items to be measured and paid for as specified in Section 01271 Measurement and Payment, providing for and complying with requirements in this Section will not be measured for payment, but cost will be considered incidental to the Contract.”

END OF SECTION

Section 01150 – SITE CONDITIONS

4.1 Delete Section 4 in its entirety.

ADD FOLLOWING: “Except for items to be measured and paid for as specified in Section 01271 Measurement and Payment, providing for and complying with requirements in this Section will not be measured for payment, but cost will be considered incidental to the Contract.”

ADD “Specification Section 01271 – MEASUREMENT AND PAYMENT.”

SECTION 01271 – MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 DESCRIPTION

A. This Section supersedes all PART 4 - Measurement and Payment subsections included in the Standard Specifications for Divisions 1 through 13.

1.2 MEASUREMENT AND PAYMENT GENERAL

A. The Contractor shall receive and accept the compensation provided in the Bid Schedule as full payment for furnishing all materials and all labor, tools and equipment, for performing all operations necessary to complete the work under the Contract, and also in full payment for all losses or damages arising from the nature of the work, or from any discrepancy between the actual quantities of work and quantities estimated by the ENGINEER, or from the action of the elements or from any unforeseen difficulties which may be encountered during the prosecution of the work until the final acceptance by the Commission.

The prices stated in the Bid Schedule include all costs and expenses for taxes, labor, equipment, commissions, transportation charges and expenses, patent fees and royalties, labor for handling material during inspection together with any and all other costs and expenses for performing and completing the Work as shown and specified herein. The basis of payment for any item at the unit price shown in the Bid Schedule will be in accordance with the description of that item in this Section.

Measurement will be made on the basis of completion of the Work in accordance with the Contract Documents and the appropriate specification section.

Measurement of quantities will be made by the Contractor in the presence of the ENGINEER. The methods of measurement and computations used in determination of quantities of materials furnished and installed shall be those generally recognized as conforming to good engineering practice.

The term "Complete in Place" or “successfully installed” will mean that the item of Work shall be furnished and installed in accordance with the Contract Documents complete with all appurtenances necessary for the item to be used for its intended function. Testing and acceptable results shall be included.

Linear foot and vertical foot measurements shall be measured along the horizontal plane of the ground or paved surface.

Area computations shall be made on the surface. Pay measurements for area computations will not exceed plan dimensions as shown on the Drawings, unless otherwise approved by the ENGINEER in writing.

No payment will be made for length, width, or depth, in excess of that shown on the Drawings or specified in the Specifications for any construction, unless otherwise approved by the ENGINEER in writing.

The term "Each" when used as an item of payment will mean complete payment for the Work described in the Contract Documents.

The word "Lump Sum" when used as an item of payment will mean complete payment for Work described in the item, including all materials, labor, and equipment necessary to complete the Work in accordance with the Contract Documents.

Separate payment will not be made for the following items; the cost of such work will be included in the various, applicable Contract Items of work, unless specifically provided for in a specific contract pay item:

1. Mobilization and demobilization charges for each project work notice.

2. Clearing and grubbing, including trees and shrubs with trunks up to 4 inches in diameter at breast height (DBH).

3. Grinding stump and surface roots up to 6 inches.

4. Protection in place for all trees and shrubs with trunk larger than 4 inches in DBH not shown on the plans, specified or directed to be removed.

5. Bypass pumping to maintain service and rehabilitation of sewer mains and manholes. Bypass design shall be based upon the flow rates shown in the Contract Documents. No flow rate will be provided for flows below 2,000 gpm.

6. Job site safety in conformance with all regulatory requirements.

7. Fuel, taxes, insurance and travel related charges and/or fees.

8. Shoring and sheeting as required by OSHA trench excavation safety standards. Several pricing items consider the excavation depth in determining the unit price. Where a range is given, the greater depth shall be inclusive in that depth and the lower end shall be above that depth. (e.g. 0-12’ means less than or equal to 2’ while 12’-20’ means above 12’ to equal to or less than 20’). Where depth is not considered in the pricing, the Contractor shall review the Contract documents to determine the depth and base unit pricing accordingly.

9. Groundwater dewatering and proper disposal of all ground water, potable water, wastewater and CIPP curing water.

10. Temporary facilities and controls during construction such as, but not limited to, water/sanitary facilities, erosion and sediment control, environmental protection, temporary barricades, fences, bridges, guards, temporary utilities, steel plates over trenches, and project identification signs.

11. Removing and proper disposing of waste material due to construction.

12. Cleanup and restoring the job site to its original condition, which includes but is not necessarily limited to restoring the ground surface to the grade shown in the Contract Documents or if not shown or identified, to its original grade.

13. Testing, including any material, equipment or third-party services.

14. Placing system or component into operation.

15. Maintaining the existing quantity and quality of service to WSSC customers during construction.

16. Identifying, locating and protecting existing utilities.

17. Repair of existing utilities damaged during construction.

18. Appurtenant work as required for a complete and operable system.

19. Obtaining and complying with specified permits necessary to perform the construction work and complying with all other permits obtained by the Commission, in accordance with Division 1, Standard Specification Section 01110 headed, “Summary of Work,” and Special Conditions.

20. Coordination with all Federal, State and Local agencies and utility Companies.

21. Repair of private irrigation systems damaged during construction.

22. Furnishing and installing suitable temporary fence, as required by the Contract Documents or as directed by the ENGINEER, to adequately secure areas protected by a permanent fence when that permanent fence must be removed. The temporary fence will remain in place until the permanent fence is replaced.

23. Securing work site and material storage site with temporary fence during construction.

24. Securing material storage site with temporary chain link fence, 6 foot in height.

25. Maintaining as-built drawings of work performed including any change to the work.

26. Transportation o f Commission- furnished materials to a n d from the Commission’s Warehouse, including transportation of salvaged materials.

27. Permit or site conditions that require work at other than normal work hours.

28. Allaying dust and mud.

29. Furnishing, hauling, placing, manipulating, and compacting material.

30. Offsite disposal of excess excavated, surplus and remnant excavated materials in accordance with all local, state and federal laws, rules, and regulations.

31. Removal and replacement of existing signs, fences, mail boxes, guard rails and similar existing improvements.

32. Minor relocation of buried cables, gas lines, water lines, sewer lines, or similar utility lines 2 inches and smaller in diameter.

33. Restoration of pavement markings.

34. Surface preparation of Non-Structural Epoxy Manhole Lining.

35. Maintenance of Traffic in county and municipal roadways. An additional pay item is included for the increased cost to perform work in state and arterial roadways. The additional cost for Maintenance of Traffic in these roads will be paid for under the appropriate line items. When multiple repairs are required between two intersections, only one increase for state and arterial roads will be permitted. It is the Contractor’s responsibility to coordinate work to minimize the traffic impact.

The Contractor is advised that the quotations for the various items of work are intended to establish fixed unit rates which shall be all-inclusive with consideration of all labor, equipment, mobilization, demobilization, remobilization, safety, security, excavation, material disposal, pumping out water from the trench, saw cutting, tools, fuel, taxes, insurance, travel, and any other specified materials or labor necessary to perform the Work for this Contract, but which will not be measured or paid for separately. If the price for work described in the construction documents and Task Order has not been established by the Bid Schedule, as determined by the Engineer, the discrepancy may be addressed as a Change Order in accordance with the General Conditions.

1.3 GRAVITY SEWER SYSTEM (OPEN-CUT TRENCH INSTALLATION)

A. Sanitary Sewer Pipe and Pipe Laterals

1. Description: The Work under this Contract Pay Item shal l be an a l l inc lus ive pr ice tha t includes furnishing all labor, materials, equipment and services required for the open-cut trench installation of sanitary sewer pipelines, pipe laterals, fittings, bends, test pits for locating lateral pipes and other utilities, cleanouts, wyes/tees and connection or reconnection of existing sewer services to new or existing pipes, manholes, or other structures in accordance with Special Provision Sections 02230 Site Clearing, 02315 Earthwork for Pipeline Construction, 01570 Erosion and Sedimentation Control, and 02530 Sanitary Sewage System.

The unit price includes excavation, backfill (onsite material deemed suitable for reuse), compaction, pipe embedment (see 02315) installation of pipe, fittings, cleanouts, wyes, tees, drop connections and adapters; placement and removal of temporary plugs, connections to new and existing mains and manholes, connection taps and tapping, reshaping of existing manhole channels, installation of backwater valves, all reconnections, cleaning and CCTV inspection of existing pipe, cleaning and CCTV inspection post-pipe installation, all applicable testing, traffic control in non-state roads, mobilization, equipment, bypass, saw cutting and pavement removal, temporary pavement, seeding and landscaping, removal of trees up to 4” DBH, and all other temporary installation necessary for performance of the work.

Use of offsite backfill versus onsite borrow materials must be approved by and is at the sole discretion of the Engineer. Price shall include all applicable items in paragraph 1.2 of this Section.

2. Payment: Payment for Sanitary Sewer Pipelines and Pipe Laterals included in the work will be made under the following unit price items:

Item No. Description Unit

1300.06 Replace Sanitary Sewer Main Pipe 6”at 0’-12’ Depth LF

1300.08 Replace Sanitary Sewer Main Pipe 8”at 0’-12’ Depth LF

1300.10 Replace Sanitary Sewer Main Pipe 10”at 0’-12’ Depth LF

1300.12 Replace Sanitary Sewer Main Pipe 12”at 0’-12’ Depth LF

1300.15 Replace Sanitary Sewer Main Pipe 15”at 0’-12’ Depth LF

1301.06 Replace Sanitary Sewer Main Pipe 6”at 12’-20’ Depth LF

1301.08 Replace Sanitary Sewer Main Pipe 8” at 12’-20’ Depth LF

1301.10 Replace Sanitary Sewer Main Pipe 10” at 12’-20’ Depth LF

1301.12 Replace Sanitary Sewer Main Pipe 12” at 12’-20’ Depth LF

1301.15 Replace Sanitary Sewer Main Pipe 15” at 12’-20’ Depth LF

Item No. Description Unit

1302.04 Replace Sewer House Connection 4” by Excavation; 0’-

12’ Depth

LF

1302.06 Replace Sewer House Connection 6” by Excavation; 0’-

12’ Depth

LF

1302.08 Replace Sewer House Connection 8” by Excavation; 0’-

12’ Depth

LF

1303.04 Replace Sewer House Connection 4” by Excavation; 12’- 20’ Depth

LF

1303.06 Replace Sewer House Connection 6” by Excavation; 12’- 20’ Depth

LF

1303.08 Replace Sewer House Connection 8” by Excavation; 12’- 20’ Depth

LF

3. Measurement for Payment:

The quantities shall be as indicated in the table above. 1300-1303 Payment shall be per linear foot measurement based upon the actual length installed and determined by the Engineer to have been successfully installed. Lengths will be measured along the pipe centerline from center of manhole to center of manhole with no deduction for fittings (i.e., wyes or tees) or manholes. Laterals, cleanouts, and wyes and detectable tape will be incidental to the cost of installing the pipes. Depth shall be determined by the difference in elevation between the ground or pavement surface and the pipe invert at the deepest point on the pipe run. The entire length of pipe between the manholes will be paid at this rate.

B. External Point Repairs

1. Description: The Work under this Contract Pay Item includes furnishing all labor, materials, equipment and services required for performing an external point repair on an existing deteriorated sanitary sewer in accordance with Special Provision Sections 02230 Site Clearing, 02315 Earthwork for Pipeline Construction, Section 01570 Erosion and Sediment Control, and 02530 Sanitary Sewage System.

The unit price shall be an all-inclusive price that includes, excavation, backfill (onsite material deemed suitable for reuse), pipe embedment (including all materials used within the pipe embedment zone as defined in Special Provision 02315 Earthwork for Pipe Construction and the Standard Details), installation of pipe up to 10 feet (minimum of 5 feet) in length, fittings, and adapters; placement and removal of temporary plugs, connections to new and existing mains and manholes reshaping of existing manhole channels, reconnection of existing service laterals, cleaning of new pipe, pre-external point repair and post-external point repair CCTV inspection; traffic control, bypass, saw cutting and pavement removal, temporary pavement installation, permanent pavement and all other temporary installations necessary for performance of the work and all applicable items identified in paragraph 1.2 of this section. All offsite material used for backfill outside of the pipe embedment zone and not included in any other pay items will be measured for payment separately under the appropriate bid items herein. Use of offsite backfill versus onsite borrow materials must be approved by and is at the sole discretion of the Engineer.

The unit price also includes erosion and sediment cont rol , the demolition, removal and proper disposal of existing pipe, cleanouts, or lampholes, and survey by a professional land surveyor.

2. Payment: Payment for External Point Repairs included in the work will be made under the following unit price items:

Item No.

Description Unit

1304.06 6” Diameter pipe Sewer Main External Point Repair at 0’-12’ Depth EA

1304.08 8” Diameter pipe Sewer Main External Point Repair at 0’-12’ Depth EA

1304.10 10” Diameter pipe Sewer Main External Point Repair at 0’-12’ Depth

EA

1304.12 12” Diameter pipe Sewer Main External Point Repair at 0’-12’ Depth

EA

1304.15 15” Diameter pipe Sewer Main External Point Repair at 0’-12’ Depth

EA

1305.06 6” Diameter pipe Sewer Main External Point Repair at 12’-20’ Depth

EA

1305.08 8” Diameter pipe Sewer Main External Point Repair at 12’-20’ Depth

EA

1305.10 10” Diameter pipe Sewer Main External Point Repair at 12’-20’ Depth

EA

1305.12 12” Diameter pipe Sewer Main External Point Repair at 12’-20’ Depth

EA

1305.15 15” Diameter pipe Sewer Main External Point Repair at 12’-20’ Depth

EA

The quantity to be measured for payment of External Point Repairs in accordance with the table above.

Items 1304 to 1305 - will be the actual number of each (EA) external point repair succ es s fu l ly i n s t a l l e d as sh own on the plans, spec i f i ed o r a s d i rec t ed by t h e Engineer. For repairs in excess of 10 linear feet, the additional amount of pipe installed shall be measured in linear feet and paid under the appropriate bid item for sewer pipe. Depth shall be determined by the difference in elevation between the ground or pavement surface and the pipe invert at the location of the point repair.

C. Manholes and Cleanouts

1. Description: The Work under this Contract Pay Item includes furnishing all labor, materials, equipment and services required for installing new manholes, manhole interior drop-lines and fittings, cleanouts as shown on the plans and in accordance with Special Provision Sections 02230 Site Clearing, 02315 Earthwork for Pipeline Construction, 02530 Sanitary Sewage System, Section 01570 Erosion and Sediment Control, and the Standard Details. Cleanouts in this section are for those not associated with the mainline replacement. Cleanouts for mainline replacement are considered incidental to the mainline replacement and are not paid for under this section.

The unit price includes excavation, vacuum excavation, backfill, bedding, compaction, installation of riser pipe for cleanouts, cleanout and cover, VacA- Tee style saddles, manhole frame and cover (F&C), fittings and adapters; test pit to locate lateral and other underground utilities; installation and shaping of benches and channels, placement and removal of temporary plugs, connections to new and existing mains and manholes; internal drop-line pipes; sealing, reshaping of existing manhole channels, installation of aluminum ladder, ladder extension, safety rail, steps, reconnection of existing service laterals and cleaning of new manhole, or cleanout and all other incidental work required to comply with the Standard Details. When required, fall prevention shall include installation of aluminum ladder, ladder extension and safety rail.

The unit price also includes erosion sediment control, the demolition, removal and proper disposal of existing materials including, but not limited to pipe, manholes, cleanouts and lampholes, and survey of the new structure by a professional land surveyor.

The unit price for repair of an existing cleanout includes excavation, vacuum excavation, backfill, bedding, compaction, installation of riser pipe for cleanouts, cleanout and cover, and survey of the new structure by a professional land surveyor.

2. Payment: Payment for manholes and cleanouts included in the work will be made under the following unit price items:

Item

No.

Description Unit

1306 Furnish and Install 4” or 6” Cleanout up to 10’ depth of cut EA

Item

No.

Description Unit

1307 Furnish and Install 4” or 6” Cleanout in excess of 10’ depth of cut VF

1308 Furnish and Install 4” or 6” Vac-A-Tee Style Cleanout up to 10’ depth of cut EA

1309 Furnish and Install 4” or 6” Vac-A-Tee Style Cleanout in excess of 10’ depth of cut VF

1310 Furnish and Install Standard Manhole 4’ inside dia. with F&C VF

1311 Furnish and Install Manhole over Existing Sewer, Type 1 or 2, 4’ inside dia. with F&C VF

1312 Furnish and Install Standard Manhole 5’ inside dia. with F&C VF

1313 Furnish and Install Manhole over Existing Sewer, Type 1 or 2, 5’ inside dia. with F&C VF

1314 Furnish and Install Standard Manhole 6’ inside dia. with F&C VF

1315 Furnish and Install Manhole over Existing Sewer, Type 1 or 2, 6’ inside dia. with F&C VF

1316 Furnish and Install Manhole Fall Prevention System VF

1317 Furnish and Install Inside Mainline Drop Connection VF

3. Measurement f o r Payment:

The quantity to be measured for payment s h a l l b e i n a c c o r d a n c e w i t h t h e t a b l e a b o v e .

Items 1306 and 1308 - Cleanouts shall be paid for each (EA) and will include all riser pipes up to 10 feet of depth of cut (as measured at the cleanout from the ground or pavement surface to the pipe invert). This price shall include all access, temporary controls, restoration and other items incidental to the work. Removal of an existing cleanout is incidental to the cost of installation of the new cleanout.

Items 1307 and 1309 - Clean outs in excess of 10’. This pay item shall by the vertical foot (VF) and only for the cost of the portion of the cleanout in excess of 10 feet measured from the ground surface. All other work associated with the cleanout shall be included in pay items 1340 and 1342.

I t e m s 1 3 1 0 – 1 3 1 5 - T he quantity to be measured for payment of manholes, in VF, will be the actual length of manhole installed, where shown on the plans or directed by the Engineer, measured along the vertical centerline from the bottom of the frame to the lowest invert. Transition riser sections will be measured for payment under the pay item for the largest end.

Item 1316 - The quantity to be measured for payment of fall prevention system, in

VF, will be the actual length of fall prevention system installed from the uppermost member (unextended) to lowest member.

Item 1317 - The quantity to be measured for payment of drop connection, in VF, will be the actual length of drop connection pipe installed, where shown on the plans or directed by the Engineer, measured along the vertical centerline from the upper invert to the lowest pipe invert.

D. Abandonment, Removal and Replacement:

1. Description: The Work under this Contract Pay Item includes the furnishing all labor, materials, equipment and services required for the abandonment, removal and replacement of manholes, including manholes with interior or exterior drop-lines, abandonment of pipe at manholes, cleanouts, lampholes and house connections as shown on the plans, or directed by the Engineer and in accordance with 02530 Sanitary Sewage System, Section 01570 Erosion and Sediment Control, and the Standard Details.

The unit price includes excavation, backfill, bedding, pipe and fittings, permanent or temporary mechanical plugs, concrete, flowable fill, removal of pipe and fittings, salvaging manhole frames and covers and delivery to WSSC and all other incidental work required to complete abandonment, or removal and replacement as specified and shown on the Standard Details.

The unit price also includes erosion sediment control, the demolition, removal and proper disposal of existing pipe, lampholes, manholes and survey by a professional land surveyor.

The quantity to be measured for abandonment of house connection will be the actual number of each (EA) house connection abandoned in separate trench from new or renewed service, where shown on the plans or as directed by the Engineer.

2. Payment: Payment for abandonment of service connections, manholes and pipe at manholes, and for removal and replacement of a manhole and for the removal and replacement of a lamphole with a manhole will be made under the following unit price items:

Description Unit

1318 Abandonment of Manhole EA

1319 Removal of Existing Manhole and replace with Standard Manhole 4’ inside dia. with F&C, < 10’ Depth EA

1320 Removal of Existing Manhole & Replace w/ standard MH 4', >10' Depth VF

1321 Removal of Existing Manhole and replace with Standard Manhole 5’ inside dia. with F&C, <10' Depth EA

1322 Removal of Existing Manhole & Replace w/ standard MH 5', >10' Depth VF

1323 Removal of Existing Manhole and replace with Standard Manhole 6’ inside dia. with F&C, <10' Depth EA

1324 Removal of Existing Manhole & Replace w/ standard MH 6', >10' Depth VF

1325 Removal of Lamphole and replace with Standard Manhole 4’ inside dia.

with F&C up to 10’ depth EA

1326 Abandonment of Pipe at Manhole EA

1327 Abandonment of House Connections EA

The quantity to be measured for payment of abandonment of manhole and pipe at manholes will be as noted in the table above.

4. Item 1318 Manhole abandonment by Each (EA) actual manhole and pipe at manhole abandoned, where shown on the plans or directed by the Engineer.

Items 1319, 1321, 1323, 1325 - The quantity to be measured for payment of removal and replacement of existing cleanouts, manholes and for removal and replacement of lampholes with manholes will be by Each (EA) actual manhole removed and replaced, or each lamphole removed and replaced with a manhole up to 10 feet of depth as shown on the plans, specified, or directed by the Engineer.

Items 1320, 1322, 1324 - For cleanouts, manholes or lampholes that are deeper than 10 feet, which are shown on the plans or directed to be removed and replaced by the ENGINEER, only the portion in excess of 10 feet of depth will get paid per Vertical Feet (VF) as measured from the ground surface. All other costs shall be incidental to the appropriate unit pay item for manholes r e m o v a l a n d r e p l a c e m e n t .

1326 - The quantity to be measured for pipe abandonment at a manhole is each

(EA) for a depth up to 10’.

1327 - Cost for pipe and house connection abandonment is each (EA)

1.4 SEWER REHABILITATION

Not applicable to this contract

1.5 SEWER MANHOLE REHABILITATION

A. Manhole Location:

1. Description: The Work under this Contract Pay Item for Sewer Manhole Location includes all labor, materials, equipment and services to locate buried sanitary sewer manholes in accordance with Special Provision Sections 02230 Site Clearing and 02315 Earthwork.

The unit price shall be a fully loaded cost that includes traffic control, locating and exposing existing buried manholes, excavation, vacuum excavation, backfill;

demolition removal and proper disposal of street pavement, driveway, curb and gutter and survey by a professional land surveyor.

The unit price does not include the cost of raising the manhole or frame and cover to grade which will be paid for under other bid items.

2. Payment: Payment for Sewer Manhole Location will be made under the following unit price items:

Item No. Description Unit 1500 Locate Existing Buried Manhole - In Paved Area EA 1501 Locate Existing Buried Manhole - In Unpaved Area EA

Items 1500 and 1501: The quantity to be measured for payment for Location of Existing Manhole will be based on the actual quantity of each buried manhole successfully located, exposed and surveyed in accordance with the Contract Documents or as directed by the Engineer.

B. Manhole Rehabilitation:

1. Description: The Work under this Contract Pay Item for Sewer Manhole

Rehabilitation includes all labor, materials, equipment and services to complete the repair and rehabilitation of existing sanitary sewer manholes as outlined in the Contract Documents and more specifically Special Provision Section 02957 Sewer Manhole Rehabilitation.

Manhole Rehabilitation includes resetting/replacing manholes’ frame and cover, adjustment of grade ring, plugging or capping inactive pipe connections, sealing of pipe connections, replacement of manhole bolts, manhole riser adjustment, interior and exterior chemical grouting of manholes, installation of chimney seals, cementitious reconstruction bench repairs & replacement, drop connection installation (internal or external) and installation of manhole liners.

The unit price for all items includes pre- and post CCTV survey inspection;

photographs; traffic control, surface preparation, any excavation and backfilling, any removal/disposal of debris offsite, testing required by the specification, control of groundwater or other leakage into the manhole during construction, and bypassing/use of flow through plugs for flows up to 2,000 gpm.

The unit price for replacing or resetting frame and covers includes all equipment, labor, and materials; excavation and backfill; resetting or replacing of manhole frame and cover; preparing salvaged frame and cover for reuse;

transition/adjustment material; pickup and return of materials; temporary restoration; and any other incidentals necessary to perform the work.

The unit price for manhole grade ring adjustment includes all equipment, labor, and materials; excavation and backfill; transition/adjustment material; temporary restoration; and any other incidentals necessary to perform the work.

The unit price for manhole riser adjustment includes all equipment, labor, and materials; excavation and backfill; installing new riser; transition/adjustment material; replacing reusable manhole materials; temporary restoration; and any other incidentals necessary to perform the work.

The unit price for chemical grout sealing includes all equipment, material, and labor; water plugs and oil-free oakum water plugs; and any other incidentals necessary to perform the work.

The unit price for installing a chimney seal includes all equipment, material, and labor; water plugs and oil-free oakum water plugs; use of root inhibitors in chemical grout; filling of any voids; and any other incidentals necessary to perform the work.

The unit price for replacement of manhole bolts includes all equipment, material, and labor; frame and cover preparation; and any other incidentals necessary to perform the work. Payment is for each manhole cover for which the bolts have been replaced and includes replacement of all bolts in the manhole frame and cover.

The unit price for plugging/capping inactive pipe connections includes all equipment, material, and labor; removal and disposal; mechanical plug; concrete or grout for plugging inactive pipe connections; and any other incidentals necessary to perform the work. This unit will not be paid if the contractor is compensated for the abandonment of the manhole, pipe, or house connection.

The unit price for repairing/modifying the manhole bench includes all equipment, material, and labor; filling of voids; replacement of bricks and concrete; grouting to stop leaks; use of chemical grout; water plugs and oil-free oakum water plugs; and cementitious bench and channel lining; and any other incidentals necessary to perform the work

The unit price for cementitious reconstruction includes all equipment, materials, and labor; installation of material; filling of voids; grouting to stop leaks; use of chemical grout; water plugs and oil-free oakum water plugs; control of groundwater or other leakage into the manhole during construction; and any other incidentals necessary to perform the work. The minimum thickness for each liner type shall be as shown in the contract documents or in accordance with the manufacturer’s recommendation but not less than ½” thick.

The unit price for epoxy liners includes all equipment; materials and labor;

installation of material; filling of voids; grouting to stop leaks; use of chemical grout; water plugs and oil-free oakum water plugs; and any other incidentals necessary to perform the work in accordance with the specifications and the manufacturers recommendation. The minimum thickness for each liner type shall be as shown in the contract documents or in accordance with the manufacturer’s recommendation.

Surface restoration of street pavements, driveway, sidewalk, curb and gutter, and grassing will be measured for payment under other appropriate contract p a y i t e m s .

2. Payment: Payment for Sewer Manhole Rehabilitation will be made under the following unit price item:

Description Unit

1502 Reset/Set Manhole Frame and Cover EA

1503 Furnish New 24”-36” Manhole Frame and Cover EA

1504 Manhole Grade Ring Adjustment VF

Description Unit

1505 Manhole Riser Adjustment VF

1506 Chemical Grouting Sealing GAL

1507 Chimney Seal EA

1508 Replace Manhole Bolts EA

1509 Plug / Cap Inactive Pipe Connection EA

1510 Repair/Modify Manhole Bench EA

1511 Cementitious Reconstruction for 4’ Inside Diameter Manhole VF

1512 Cementitious Reconstruction for 5’ Inside Diameter Manhole VF

1513 Cementitious Reconstruction for 6’ Inside Diameter Manhole VF

1514 N/A VF

1515 N/A VF

1516 N/A VF

1517 Spray-on Epoxy Liner for 4’ Inside Diameter Manhole VF

1518 Spray-on Epoxy Liner for 5’ Inside Diameter Manhole VF

1519 Spray-on Epoxy Liner for 6’ Inside Diameter Manhole VF

Measurement f o r P a y m e n t : Measurement for payment is described below. All pay items for new manholes include the frame and cover, drop connections, bench installation will not be measured for separate payment on new manholes.

1502: Reset/set manhole frame and cover will be each (EA) manhole reset or replaced satisfactorily as shown on the plans, as specified or directed by the Engineer. If the manhole frame and cover removed for resetting is in unacceptable condition as determined by the Engineer, then provide a new manhole frame and cover as directed by the engineer. The new frame and cover will be measured for payment separately.

1503: Furnish new 24” – 36” MH Frame and Cover will be for each (EA) frame and cover where the Engineer has determined the existing frame and cover is not acceptable for reuse. Removal and disposal of the existing frame and cover is included in this pay item.

1504: Payment for manhole adjustment of grade ring, in Vertical Foot (VF) will be actual length of grade ring adjusted measured from the bottom of the grade material included in the reset/replace manhole frame and cover to the top of the existing undisturbed cone or wall material, as determined to match existing grade, elevation shown on the plans or as directed by the Engineer. Tilted adjusting rings will be measured on the long side.

1505: Payment for manhole riser adjustment, in Vertical Foot (VF) will be measured from the ground surface to the top of existing undisturbed manhole wall material for each manhole location and diameters listed as shown on the places, as specified, or directed by the Engineer. Payment will include removal of existing riser sections and payment will not include material included in the reset/replace frame and cover.

1506: Manhole Chemical Grout Sealing is paid by each measured Gallon (Gal) of grout injected for precast base, pipe connections, precast section joint, or brick manhole leaks as shown on the plans, as specified, or directed by the Engineer.

1507: Payment for Chimney Seal will be for each (EA) chimney seal satisfactorily completed as shown on the plans, as specified, or directed by the Engineer.

1508: Payment for Manhole Bolt Replacement will be made for each (EA) manhole cover for which the bolts have been replaced, as directed by the Engineer. Separate payment will not be made for manhole bolt replacement if the frame and covers are replaced.

1509: Payment for Plugging or Capping Inactive Pipe Connections will be made by Each (EA) inactive pipe connection plugged or capped, as shown on the plans, as specified, or directed by the Engineer.

1510: Payment for repair/modify manhole bench will be made by EACH (EA) bench repaired or reconstructed as shown on the plans, as specified, or directed by the Engineer.

1511 – 1513: Payment for Cementitious Reconstruction shall be by the vertical foot for the appropriate manhole diameter. Measurement shall be along the vertical center line of the manhole.

1517 – 1519: Epoxy Liners shall be paid by the vertical foot (VF) for the appropriate manhole diameter of liner installed as shown on the plans, specified or directed by the engineer. Measurement shall be along the vertical center line of the manhole.

1.6 CLEANING AND TELEVISION INSPECTION

A. Cleaning and CCTV of mainline pipes, lateral pipes and manholes;

1. Description: The Work under this Contract Pay Item for Cleaning and Television Inspection includes all labor, materials, equipment and services to complete the cleaning and execution of internal closed-circuit television (CCTV) surveys to inspect sewer mains, laterals and manholes as outlined in Special Provision Sections 02956 Closed Circuit Television Inspection of Sewer Mains and Laterals and 2957 for S e w e r Manhole Rehabilitation.

The unit price reflects a fully loaded cost including all incidentals required to perform the work. This includes access, the cleaning and proper disposal of the removed solids and liquids, CCTV survey and inspection with proper field documentation of manholes, sewer mainlines and lateral pipes that must be conducted in accordance with MACP, PACP, and LACP protocols, respectively.

The unit price also includes traffic control, CCTV survey inspections, use of hydraulic jet cleaners, porcupines, cutters, power rodding, clam buckets and other mechanical means of removing solids and debris, sufficiently to allow camera passage and video reviewers a clear picture of conditions.

The work in this section is for cleaning and inspection only. When sections or manholes are identified for rehabilitation, light cleaning and inspection shall incidental to the rehabilitation work.

2. Payment: Payment for Cleaning and Television Inspection will be made under the following unit price items:

Description Unit

1600.06 6” Diameter Sewer – Light Cleaning with Video Inspection LF

1600.08 8” Diameter Sewer – Light Cleaning with Video Inspection LF

1600.10 10” Diameter Sewer – Light Cleaning with Video Inspection LF

1600.12 12” Diameter Sewer – Light Cleaning with Video Inspection LF

1600.15 15” Diameter Sewer – Light Cleaning with Video Inspection LF

1601.06 6” Diameter Sewer – Heavy Cleaning with Video Inspection LF

Description Unit

1601.08 8” Diameter Sewer – Heavy Cleaning with Video Inspection LF

1601.10 10” Diameter Sewer – Heavy Cleaning with Video Inspection LF

1601.12 12” Diameter Sewer – Heavy Cleaning with Video Inspection LF

1601.15 15” Diameter Sewer – Heavy Cleaning with Video Inspection LF

1602.04 4” Diameter Lateral – Cleaning with Video Inspection LF

1602.06 6” Diameter Lateral – Cleaning with Video Inspection LF

1603 Cleaning with Video Inspection of Manhole VF

1600-1602: The length of Light Cleaning and Video Inspection of sewer main or lateral pipe to be measured for payment will be the actual length of sewer main or lateral cleaned and CCTV surveyed with proper field documentation in accordance with the Contract Documents, in linear feet (LF). Separate payment shall be made for heavy cleaning as directed, when light cleaning as defined in Section 02956 for Closed Circuit Television Inspection of Sewer Mains and laterals is not sufficient in the opinion of the Engineer. The line items for heavy cleaning will only be used when directed by the Engineer.

1603: Cleaning with Video Inspection of Manhole will be measured by each (EA) manhole cleaned and inspected.

1.7 PIPE BURSTING

A. Not applicable to this contact.

1.8 WATER MAINS & APPURTENANCES

A. Water Main Pipe and Appurtenances

1. Description: The Work under this Contract Pay Item for Water Main and Appurtenances includes furnishing all applicable general items from paragraph 1.2, labor, materials, equipment and services required to install, and place in operation the water mains and fittings, as outlined i n Special Provision Sections 02230 Site

Clearing, 02315 Earthwork for Pipeline Construction, 02510 Water Distribution System and the Standard Details. The unit pricing for pay items shall reflect a fully loaded cost. The Contractor is responsible to review the Contract documents to determine all cost items that will impact the unit pricing based upon the work being issued.

The unit price includes test pits required by contract documents, traffic control, bypass pumping, excavation, pipe embedment and backfilling, installation of water main pipe, installation of water main pipe as carrier pipe inside casing pipe, adapters for connecting to different water main materials, tapping sleeves and valves, sleeves, fittings, valves, valve boxes, special linings, blow-offs, manholes, polyethylene encasement, branch connections, connecting to existing water mains, corporation stops, couplings for chlorination, temporary thrust control, proprietary restrained joints or external joint restraints; temporary plugs, temporary valves, flushing/pigging, bacteriological testing, disinfection, fire hydrants and fire hydrant leads, performing taps, installation and removal of temporary sample taps, and all other incidental work required to complete the installation of water mains as specified and shown on the Standard Details.

The unit price also includes the demolition, removal and proper disposal of existing pipe, valves and appurtenances, and survey by a professional land surveyor.

2. Payment: Payment for the Water Main Pipe and Water Main Fittings will be made under the following unit price items:

Item No.

Description Unit

1800 Furnish and Install Watermain LS

1801.075 Furnish and Install 0.75” Service – Water House

Connection

LF

1801.01 Furnish and Install 1” Water Service – Water House

Connection

LF

1801.015 Furnish and Install 1.5” Water Service – Water House Connection

LF

1801.02 Furnish and Install 2” Water Service – Water House

Connection

LF

1802 Meter Setting – Single yolk with meter box – Water House Connection

EA

1803 Replace Curb Box – Water House Connection EA 1804 Replace meter Crock – Water House Connection EA

Item 1800: The quantity for furnish and install watermain will be paid by the lump sum (LS) for all watermain work as shown on the plans and as determined by the Engineer to have been successfully installed. Payments will be made to the contractor in installments that correspond with the percentage of work complete.

Item 1801: The quantity of furnish and install water service will be paid by the linear foot (LF) for each foot of water house connection successfully installed as specified or directed by the Engineer. This item is a contingent item for water house connections not shown on the plans at the time of bid.

Item 1802 through 1804: The quantity of meter setting, curb box replacement, and meter crock replacement will be paid by each meter setting, curb box, or meter crock successfully installed as specified or directed by the…