B01 Attachment J01d TP-06 Sanitary Sewer APRIL 2021.pdf

TECHNICAL PROVISIONS - SECTION 06 - Page 1 of 13

April 2021

TECHNICAL PROVISIONS

SECTION 06 – GRAVITY SANITARY SEWERS

TP-601 SCOPE:

The work covered by this section consists of furnishing all plant, labor, equipment, materials and incidentals, in connection with the construction of gravity sewer mains and appurtenances, in accordance with these drawings and specifications.

TP-602 GENERAL:

All facilities shall be constructed in the locations to the grades and of the sizes shown on the drawings. Excavation, trenching and backfilling shall be in accordance with Section 01 of these

Technical Provisions. Any section of sewer that is found defective in material, alignment, grade or joint shall be corrected so as to meet these specifications and drawings.

TP-603 MATERIALS:

A. Pipe, Joints and Fittings

1. PVC Gravity Sewer Pipe: Sewer pipe shall be PVC and shall conform to all requirements of product standard ASTM D3034 for pipe diameters up to 15 inches and ASTM F679 for 18-inch to 48-inch diameter sewer mains. Sewer pipe shall meet the pipe compound requirements of ASTM D1784 and shall be made with PVC 1120 resin, Type I, Grade I. Pipe stiffness shall meet

ASTM D2412. Pipe shall be nominal size, SDR-35. Joints shall be furnished with one end belled. The joint shall be integral bell and spigot with a Rieber rubber gasket. The integral bell shall meet ASTM D 3212. The gaskets shall be as recommended by the pipe manufacturer and shall meet

ASTM F477.

Plastic pipe with scratches, gouges, or grooves deeper than 10 percent of the wall thickness shall be rejected.

2. Services Wyes and Risers: PVC fittings utilized shall be single gasketed bell and spigot push-on type, meeting ASTM 3034.

3. Ductile Iron Pipe: All ductile iron pipe shall be in accordance with AWWA

C151 and shall be in 18 to 20 foot lengths with single rubber gasket (push-on) joints in accordance with AWWA C111. Pipe shall be 350 psi rated. All ductile iron pipe used for sewer shall be cement-mortar lined in accordance with ASTM A746 and AWWA C104.

TECHNICAL PROVISIONS - SECTION 06 - Page 2 of 13

B. Manholes

1. General: All concrete used in constructing the manhole shall conform to

Section 02 of the specifications. All concrete used for manholes shall be batched with a chemical resistant admixture for protection against hydrogen sulfide gas. The admixture shall be equal to Moxie 1800 Super-Admix as manufactured by Moxie International. Contractor shall provide most recent concrete cylinder break result which shall be no more than 30 days old. .

Manholes shall meet the minimum standards of ASTM C478-18 – Standard

Specification of Circular Precast Reinforced Concrete Manhole Sections.

2. Lines and Grades: All manhole locations shall be as shown on the drawings unless field changes are necessary. Sewer line cut stakes shall be provided by the Contractor at each manhole and at the midpoint between each manhole at a minimum. A minimum of 2 offset stakes shall be provided for each cut stake. Further information on staking is found in TP-1.

3. Manhole Frames and Covers: Frames and covers shall be made of cast iron with a combined weight (frames and cover) of not less than 266 pounds. Cast iron frames and covers shall conform to drawings in all essentials of design.

The cover shall have a lifting pocket.. Manhole frames and covers shall meet

ASTM A48. Before leaving the foundry, all castings shall be thoroughly cleaned after which they shall be dipped twice in a preparation of hot asphalt or coal tar and oil, in such a manner as to form a firm coating. The manhole and covers shall be set such that the top of the cover shall be 3 inches above unpaved roads where paving is expected later or ground level as shown on the drawings or as directed by the Owner or Owner’s. Frames and covers shall be East Jordan Iron Works, Inc. Product No. 00120211, 1202Z Frame with vent hole (1202 Assembly, Product No. 00120202) or without vent hole

(1202A Cover, Product No. 00120263) or approved equal.

4. Manhole Bases: Bottom manhole sections shall have integral precast base or floor slabs. Manhole bases shall be a minimum of 6 inches thick for 48 inch diameter manholes and a minimum of 8 inches thick for manholes larger than

48 inches. If precast concrete manhole bases are used, they shall be bedded on 8 inches of crushed rock or gravel meeting the following requirements:

100% passing a 40 mm screen and not more than 10% passing a No.40 sieve, with uniform grading. Precast bases with precast channels shall be pre-approved on a case-by-case basis by the Owner or Owner’s representative.

Cast in place base slabs shall be constructed with reinforced concrete as shown in the detail plans. The contractor shall submit detail drawings showing the size, placement, and spacing of reinforcing bars for manhole bases. This requirement applies for both pre-cast and cast-in-place manhole bases. Cast in place base slabs shall be constructed with a keyed joint for the

TECHNICAL PROVISIONS - SECTION 06 - Page 3 of 13 manhole barrels to be installed into as shown on the detail drawings.

5. Standard Manholes: Standard manholes are those which have a depth, measured from the invert of the outlet pipe to the top of the cover, greater than 6 feet. Standard manholes shall be constructed of 4 feet inside diameter, 5 inches thick precast concrete manhole sections. Cone sections shall be eccentric, 5 inches thick precast concrete. Standard manholes shall have a 6 inch thick concrete base slab, and shall be constructed as shown on the detail drawings.

6. Shallow Manholes: Shallow manholes shall have a depth of 6 feet or less, and shall be constructed of 4 feet inside diameter, 5 inches thick precast concrete sections with 8 inch thick reinforced concrete flat top cover and 6 inch thick base slabs. Shallow manholes shall be constructed as shown on the detail drawings.

7. Inlet Manholes: Inlet manholes shall have a depth of 6 feet or less, and shall be constructed of 4 feet inside diameter, 5 inches thick precast concrete sections with reinforced concrete cover 8 inches thick and base slabs 6 inches thick, respectively in accordance with ASTM C478-18. The inlet manhole shall be constructed as shown on the detail drawings.

8. Diversion Manholes: Diversion manholes shall have a depth of 6 feet or less, and shall be constructed of 4 feet inside diameter, 5 inches thick precast concrete sections with reinforced concrete cover 8 inches thick and base slabs

6 inches thick, respectively in accordance with ASTM C478-18.. Diversion manholes shall be constructed as shown on the detail drawings. Each diversion manhole shall be provided with a fiberglass gate frame and gate.

The fiberglass gate frame shall have a thickness of 3/16-inch. The gate frame shall have a channel that is ¼-inch. The fiberglass gate shall be ¼-inch thick.

The gate frame and gate shall be constructed as shown on the detail drawings.

9. Drop Manholes: An interior drop bowl, drop pipe, and fasteners shall be installed for the inlet pipe in the existing drop manhole. The interior drop bowl shall be B-8 Drop Bowl, part number B8DB, as manufactured by

Reliner/Duran, Inc. of Lyme, Connecticut or equal. The interior drop bowl shall be installed as per manufacturer’s recommendation using stainless steel fasteners. The drop pipe shall be securely attached to the manhole wall using stainless steel Reliner Adjustable Clamping Brackets or equal and stainless steel fasteners. The drop pipe shall be 8-inch SDR35. The adjustable clamping brackets shall be made of 1-1/2” width, 11 gauge, type 304 stainless steel. The pinch bolts and nuts shall be 3/8” diameter 18-8 stainless. Bracket interval shall be 4 feet maximum and a minimum of two brackets. The connection of the drop bowl to the drop pipe shall be by flexible external pipe

TECHNICAL PROVISIONS - SECTION 06 - Page 4 of 13 coupler. The turn-out at the base and end of the drop pipe shall be installed using a 45 degree PVC pipe elbow.

10. Waterstops: All pipe penetrations through the manhole shall be equipped with waterstop devices. Waterstop devices shall be equal to concrete manhole adapter as manufactured by Fernco. Grouting shall be only applied between the penetrating PVC and receiving concrete invert to create a smooth, watertight transition.. Grouting shall not be applied to or around the boot connectors.

C. Terminal Sewer Main Cleanouts: Such cleanouts shall be of the same material as the gravity sewer main and sized as called for on the bid schedule. Cleanouts are to be constructed as shown on the detail drawings. Frame and lid shall be equal to East

Jordan Iron Works, Inc. Product No. 00157804, Catalog No. 1578ZPT and 1578APT with a locking cover. Covers shall be marked "SEWER. The open pipe inside the locked cover shall be plugged with a Cherne Original Gripper, or equal.

D. Warning Tape: Warning tape shall be green in color with "Caution - Buried Sewer

Line Below" continuously printed on it. Tape shall be a minimum of 3-inches wide, 5 mils total thickness, composed of plastic with a metal foil core, and equal to

Traceline Underground Utility Marking Tape. The warning tape shall be installed 12 inches above the pipe. This tape shall also be installed on sewer service lines.

E. Marker Post: 2-1/2 inch diameter aluminum or steel utility markers with stampable brass or aluminum caps shall be installed to mark the location of all manholes and terminal sewer main cleanouts. Marker posts shall be painted with a minimum of 2 coats of yellow paint designed for outdoor commercial use. The marker posts shall be properly cleaned and the surface prepared in accordance with the paint manufacturer’s recommendations prior to painting. Markers shall be 60-inch long,

2.5 inch diameter, Bernsten Model A1NBF60-OS aluminum posts, or approved equal. Marker posts shall be installed, to leave 36 inches exposed above ground.

Where possible, the markers shall be located immediately above the indicated item.

The Owner will specify the location for markers requiring offset installation. The

Contractor shall be responsible for accurately stamping the location, orientation and size of the sewer main, manholes, terminal cleanouts, and appurtenances on the cap.

Installation and stamping of marker posts shall be considered incidental to installation of sewer main, manholes, terminal cleanouts, and appurtenances.

Under no circumstances shall marker posts be installed within the right-of-way of any roadways, unless specifically indicated on a right-of-way permit. Instead, the contractor shall install carsonite marker posts to mark the locations of valves, vaults, bends, tees, crosses, interconnections, etc. within the right-of-way of roadways.

Carsonite markers shall be 72 inches in length, 3.75 inches in width, green in color, model CRM306607 with anchor barb and “Caution Sewer Pipeline” text on the

TECHNICAL PROVISIONS - SECTION 06 - Page 5 of 13 marker as manufactured by Carsonite Composites, or equal. The carsonite markers shall be installed directly over the item that it is marking with a 24 inch bury depth.

TP-604 TRENCH EXCAVATION AND BACKFILL:

Trenching and backfilling operations shall be performed as specified in Section 01 of the Technical

Provisions.

TP-605 INSTALLATION OF GRAVITY SEWER LINES:

The bottom of the trench shall be shaped to give uniform support to the pipe. Pipe laying shall proceed upgrade, with the spigot end pointing in the direction of the flow. Each pipe shall be laid true to line and grade as shown on the drawings, and in such a manner as to form a close concentric joint with the adjoining pipe. As the work progresses, the interior of the sewer shall be cleared of all dirt and extraneous materials of every description. If the maximum width of the trench at the top of the pipe specified in Section 01 of these Technical Provisions is exceeded for any reason other than at the direction of the Owner or Owner’s representative, the Contractor shall install such concrete cradling, encasement, gravel base or other bedding as may be required to satisfactorily support the added load of the backfill. Trenches shall be kept free from water and the pipe shall not be laid when conditions of the trench or weather are unsuitable for such work. At all times when work is not in progress, all open ends of pipe and fittings shall be securely closed so that no trench water, earth or other substances will enter the pipe.

TP-606 WATER AND SEWER LINE SEPARATION REQUIREMENTS:

A. General: Water lines located near sewers present conditions for serious potential cross contaminations. Protection from cross contamination can be provided by separation of the facilities and use of special piping materials. For measuring separation between pipes, all measurements shall be the clearance between pipes

(pipe O.D. to pipe O.D.).

For the purposes of this section, the term “lines” shall include mains, laterals, and service lines for both water and sewer.

B. Horizontal Separation of Water and Sewer Lines: When water and sewer lines are laid parallel to each other, the horizontal distance between the water and sewer lines shall be at least 10 feet. Each line shall be laid in a separate trench.

When physical conditions, such as an existing obstruction, will not allow the required

10-foot horizontal separation, the water and sewer lines may be laid closer than 10 feet if the bottom of the water line is at least 18 inches above the top of the sewer line.

TECHNICAL PROVISIONS - SECTION 06 - Page 6 of 13

C. Vertical Separation of Water and Sewer Lines: When water lines cross sewer lines, the water line should be above the sewer line with no less than 18 inches vertical clearance (Measuring pipe O.D. to pipe O.D.).

Whenever possible the water line shall be above the sewer line. If the minimum 18-inch clearance cannot be obtained with the water line above the sewer, the water line must be installed under the sewer line.

Where a water line must cross under a sewer line, a vertical clearance of at least 18 inches between the bottom of the sewer line and the top of the water line shall be maintained. The water main shall be the normal water distribution pipe as specified on the construction drawings, with a 20-foot pipe section centered on the sewer crossing. No joints in sewer lines shall be permitted within 9 feet of a water line.

Where a water line must cross sewer service lines or mains, and the water line is not a minimum of 18 inches above the sewer service line or main, special protection is required. In these instances, the sewer service line or main shall be reconstructed of ductile iron pipe of the same size as the original sewer service line or main for a distance of 10 feet on either side of the water/sewer crossing point. As an alternative method of providing special protection, the contractor may place concrete a minimum of 8” greater than the outside diameter of the pipe (i.e. 4” of concrete all the way around the pipe) for a length of 20 feet (10 feet on either side of the water/sewer crossing point), if approved by the project engineer. Concrete shall meet TP-2 requirements. All existing sewer grades shall be maintained.

D. Water Main Separation from Sewer Manholes: No water pipe shall pass through, under, or come into contact with any part of a sewer manhole.

E. Separation Between Water Lines and Components of the Sewage Disposal System:

Water lines shall not be installed within 10 feet of a septic tank, within 25 feet of a drainfield, or 50 feet from an outhouse. Also, waterlines shall not be installed within

100 feet of the perimeter fence of an individual lagoon, or within 500 feet of the perimeter fence of a community lagoon.

TP-607 CONCRETE ENCASEMENT OF SEWER MAIN:

Sewer line sections indicated on the plans as requiring concrete encasement shall be constructed in accordance with the detail drawings. Transition from PVC to DI sewer pipe shall be accomplished with approved a transition boot. DI piping shall extend a minimum of 6-1/2 feet beyond the limits of indicated concrete encasement unless otherwise directed in the plans and detail drawings. Concrete requirements shall be as indicated in Section 02 of these Technical Provisions.

TP-608 INSTALLATION OF MANHOLES:

Manhole invert channels shall be smooth and semi-circular in shape, conforming to the inside of the

TECHNICAL PROVISIONS - SECTION 06 - Page 7 of 13 adjacent sewer pipe section. The invert shall be finished smoothly with a semi-circular cross section.

Flat-bottomed inverts shall not be acceptable. Inverts with humps or low spots or roughness of finish which will catch solid materials will not be acceptable. Inverts shall not be brush finished. 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 change in grade. Changes in direction of flow shall be made with a smooth curve of as large a radius as the size of the manhole will permit. S-curves will not be acceptable. Changes in sizes and grade of the channels shall be made gradually and evenly. The manhole shall be positioned such that the pipes intersect in the center of the manhole circle. The invert channels will be formed directly in the concrete. For those manholes where the sewer pipe does not change grade or slope, the invert 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 shall slope toward the channel at a 15 percent grade. , installed as shown on the drawings. Any deviation of alignment of more than 3 inches for any step shall be cause for it to be reinstalled at the Contractor's expense.

The tops of all manholes shall have a concrete collar of the dimensions shown on the detail.

Manholes shall be installed at the locations and elevations shown on the site plans or as directed by the Owner or Owner’s representative in the field. Joints between precast manhole sections shall be sealed with "Ram Nek" bituminous rope type sealer, Reduced Friction Seal pre-lubricated gasket or equal. The sections shall then be grouted to a smooth finish on the interior and exterior of the manhole. Grout for jointing shall be as specified in Section 02 of the Technical Provisions.

Manhole sections, and adjustment rings if required, shall be grouted in place when the manhole is constructed. The grout shall be spread evenly over the entire mating surface. The maximum number of adjustment rings shall be as indicated on the plans. The jointing and sealing materials shall be approved by the Owner or Owner’s representative prior to installation.

Any drop manholes shall be constructed at the locations shown on the plans in accordance with the details shown on the construction drawings. Bases, walls and cones shall conform to the drawings.

The manhole covers shall be set to the elevations shown on the drawings.

All connections between sewer pipe and manhole walls shall be sealed with non-shrinking grout in such a manner to make the manholes water tight.

Manholes shall not be acceptable if any evidence of infiltration into them is found. The Contractor shall take whatever actions are necessary, at his expense, to ensure that the manholes are completely watertight.

Precast manholes shall not be altered or modified in anyway. Precast manhole bases, barrel sections, etc. shall be installed in their precast condition. Chipping or altering the concrete shall not be allowed.

TECHNICAL PROVISIONS - SECTION 06 - Page 8 of 13

TP-609 CONNECTION TO EXISTING MANHOLES:

Connection of newly constructed sewer mains to existing manholes shall be of either the drop or at-grade type as indicated in the drawings and listed on the bid schedule. Reconstruction of manhole bases and inverts, all necessary piping, and associated work required to complete the connection shall comply with the provisions of Section TP-608.

All pipe entrances into the existing manhole shall be core bored, and a waterstop and watertight sealer shall be installed on each pipe penetrating into the manhole. All voids shall be repaired with non-shrink grout. Grouted areas shall be painted with bituminous coating on exterior. The invert shall be constructed as specified in TP-608 Installation of Manholes. Chipping and altering existing concrete inverts to connect the new sewer main pipe into the manhole is allowed.

TP-610 TESTING:

A. Sewer Main Alignment: After the gravity sewer lines have been completely backfilled and the contractor has verified the line as ready for testing, the Owner or his/her representative will check the alignment by shining a light between manholes.

Any deviation from true line or grade may be cause for rejection of the line. Any deviation from true line or grade which prevents water from draining by gravity from the sewer system, including manholes, shall be corrected such that the facilities meet these specifications and drawings. For horizontal alignment only, a deviation allowance of one-quarter of the inside diameter of the pipe may be excepted by the

Owner or Owner’s representative.

B. Sewer Main Water Tightness:

Testing for water tightness in gravity sewer mains may be accomplished by either of the following two methods:

1. Exfiltration/Infiltration: Tests for water tightness in the gravity sewer mains shall be made by the Contractor in a manner approved by and in the presence of the Owner or Owner’s representative. The sewer and manhole connections shall not leak under either external or internal water pressure in excess of 10 gallons per day per inch diameter per 1000 feet of sewer. The test shall be run for a minimum of a four hour period.

Infiltration testing shall be completed under existing ground water conditions.

Exfiltration testing shall be conducted under an internal pipeline test pressure generated by a manhole water level at least 1 foot above the highest elevation of the sewer main to be tested. Leakage by either infiltration or exfiltration greater than specified above shall be corrected by the Contractor at his expense. All equipment and water for these tests shall be furnished by the

Contractor. This test will be made after the line has been completely backfilled.

TECHNICAL PROVISIONS - SECTION 06 - Page 9 of 13

2. Low Pressure Air Test:

Test Requirements & Setup:

a. Test each newly installed section of gravity sewer line between manholes.

b. Slowly introduce air pressure to approximately 5.0 psig.

c. Allow pressure to stabilize for at least five (5) minutes. Adjust pressure to 5.0 psig or the increased test pressure as determined below if groundwater is present. Start the test.

Test Procedure:

a. Determine the test duration for a sewer section with a single pipe size from the table below:

Low Pressure Air Test – Test Times

Sewer Main Diameter (inches) Test Time (Minutes/100 Feet of Sewer Main)

8 1.2

10 1.5

12 1.8

24 3.6

b. Record the drop in pressure during the test period. If the air pressure has dropped more than 1.0 psig during the test period, the line is presumed to have failed. If the 1.0 psig air pressure drop has not occurred during the test period, the test shall be discontinued and the line will be accepted.

c. If the line fails, determine the source of the air leakage, make corrections and retest. The Contractor has the option to test the section in incremental stages until the leaks are isolated. After the leaks are repaired, retest the entire section between manholes.

C. Flushing: The Contractor shall flush all sewer lines before pre-final inspection to remove sand, silt and other foreign material which might have entered the pipe during construction. Water used for flushing shall be domestic quality or as approved by the Owner or his/her representative. All equipment and water for the flushing shall be furnished by the Contractor. This test will be made after the line has been completely backfilled. The Contractor shall dispose of all water and foreign matter after flushing in an approved manner.

D. Deflection Test: The maximum allowable deflection (reduction in vertical inside diameter) for PVC pipe shall be five percent. However, up to seven and one half

TECHNICAL PROVISIONS - SECTION 06 - Page 10 of 13 percent may be allowed 30 days after final backfilling. Deflection testing is required in all cases between all manholes. All locations with excessive deflection shall be excavated and repaired by re-bedding or replacement of the pipe. Acceptable methods of deflection testing include use of properly sized go-no-go mandrels or deflectometer. Deflection testing is not required for ductile iron sewer mains.

D. Manhole Testing: All manholes shall be tested for watertightness. Each manhole shall be tested immediately after assembly and prior to backfilling. All lift holes shall be plugged with an approved non-shrink grout. All pipes entering the manhole shall be plugged, taking care to securely brace the plug. If the manhole fails the initial test, necessary repairs shall be made and the manhole shall be retested. One of the following methods shall be used.

1. Vacuum Testing: Vacuum testing should be conducted in accordance with

ASTM C-1244 (Vacuum Test for Concrete Manholes), except as modified below. The vacuum test head shall be placed inside the top section and the seal inflated in accordance with the manufacturers' recommendations. A vacuum of 10 inches of mercury shall be drawn and the vacuum pump shut off. With the valves closed, the time shall be measured for the vacuum to drop to 9 inches. The manhole shall pass if the time is greater than 60 seconds for 48-inch diameter, 75 seconds for 60-inch, and 90 seconds for

72-inch diameter manholes.

2. Hydrostatic Testing: Hydrostatic testing shall be conducted in accordance with ASTM C-969 except as modified below. The mains into and out of the manhole shall be stoppered with a suitable device such as a tethered pneumatic plug. The manhole shall be filled with water to the ring. After a period of at least one hour to allow for concrete absorption and to allow the water level to stabilize, the manhole shall be refilled and the water level shall be checked. The hydrostatic test shall then begin and shall be administered for a period of 4 hours. If the water level is found to drop more than ¼ inch per foot of depth of the manhole over this 4 hour duration, then the leakage shall be considered excessive and the Contractor shall be required to make all necessary repairs and retest the manhole. The exterior of the manhole shall be inspected during this period for visible evidence of leakage. Visible moisture, sweating, or beads of water on the exterior of the manhole shall not be considered leakage, but any water running across the concrete surface will be considered leakage and shall be repaired to the satisfaction of the Engineer regardless of the volume of water lost during the test.

TP-611 CLEANUP:

Upon completion of the work, the entire site shall be cleared of all debris, and the ground surface shall be finished to smooth and uniform slopes. All fences, clotheslines, gravel driveways or other

TECHNICAL PROVISIONS - SECTION 06 - Page 11 of 13 obstructions removed during construction shall be left in a condition at least equal to their condition prior to construction. Cleanup shall be considered an incidental item and no additional payment shall be made for it, but rather its costs shall be merged with the applicable pay item irregardless of whether cleanup is specifically included in the measurement and payment section.

TP-612 MEASUREMENT AND PAYMENT:

A. Gravity Sewer Main: Gravity sewer main shall be measured in linear linear feet along the centerline of the pipe, center to center of the manhole without deduction for fittings or diameter of manholes, for each of the various sizes and types of pipe installed. Payment for sewer pipe shall be at the contract unit price for the various sizes and types of sewer main installed as shown on the Bid Schedule. This price shall be full compensation for furnishing all labor, equipment, materials, exfiltration/infiltration testing, and incidentals required for a complete installation, including but not limited to excavation, bedding, stabilization material, laying and jointing pipe, exfiltration/infiltration testing or air testing, supplying water, plugging, measuring, flushing, backfilling, as-builts, and final cleanup.

B. Shallow Manholes: Shallow manholes shall have a depth of 6 feet or less when measured from the invert of the outlet pipe to the top of the cover, and shall be measured each. Payment shall be at the contract unit price shown on the Bid

Schedule. This price shall be full compensation for furnishing all labor, equipment, materials, and incidentals required for a complete installation, including but not limited to excavation, concrete, frame and cover, adjustment of height, invert forming, connection to sewer lines, backfilling, as-builts, and final cleanup.

C. Standard Manholes: Standard manholes shall have a depth greater than 6 feet when measured from the invert of the outlet pipe to the top of the cover, and shall be measured each. Payment shall be at the contract unit price for the various depths of manholes installed as shown on the Bid Schedule, which shall be full compensation for furnishing all labor, equipment, material, and incidentals required for a complete installation, including but not limited to excavation, concrete, frame and cover, adjustment of height, invert forming, connection to sewer lines, backfilling, as-builts, and final cleanup.

D. Drop Manholes: Drop manholes shall be measured each. Payment shall be at the contract unit price shown on the Bid Schedule, which shall be full compensation for furnishing all labor, equipment, material, and incidentals required for a complete installation, including but not limited to excavation, concrete, frame and cover, adjustment of height, invert forming, connection to sewer line, backfilling, as-builts, and final cleanup.

E. Inlet Manholes: Inlet manholes shall be measured each. Payment shall be at the furnishing all labor, equipment, material, and incidentals required for a complete

TECHNICAL PROVISIONS - SECTION 06 - Page 12 of 13 installation, including but not limited to excavation, concrete, frame and cover, gate frame and gates, adjustment of height, invert forming, piping, connection to sewer line, backfilling, as-builts, and final cleanup.

F. Diversion Manholes: Inlet manholes shall be measured each. Payment shall be at the furnishing all labor, equipment, material, and incidentals required for a complete installation, including but not limited to excavation, concrete, frame and cover, gate frame and gates, adjustment of height, invert forming, connection to sewer line, backfilling, as-builts, and final cleanup.

G. Terminal Sewer Main Cleanouts: Sewer main cleanouts installed at the terminal end of a sewer main shall be measured each. Payment shall be at the contract unit price on the Bid Schedule, which shall be full compensation for furnishing all labor, equipment, material, and incidentals required for a complete installation, including but not limited to excavation, concrete, frame and cover, fittings, backfilling, as-builts, and final cleanup.

H. Connection to Existing Manhole: Connections to existing manholes shall be measured each. Payment shall be at the contract unit price shown in the Bid

Schedule. This price shall be full compensation for furnishing all labor, equipment, material, and incidentals required for a complete installation, including but not limited to excavation, cutting into the existing manhole, grouting, fittings, removing the existing invert, pouring and forming a new invert, backfilling, as-builts, and final cleanup.

I. Water and Sewer Main Crossings - Sewer Mains: All costs associated with completion of water and sewer main crossings shall be merged with other bid items and will not be considered a separate item for payment. No additional payment will be made for installation of ductile iron pipe associated with water and sewer main crossings.

J. Concrete Encasement: The concrete encasement shall be measured in linear feet along centerline of the encased pipe, beginning to end of encasement. Payment shall be at the contract unit price shown in the Bid Schedule, which shall be full compensation for furnishing all labor, equipment, materials, and incidentals required for a complete installation.

TP-613 SUBMITTALS:

A. PVC sewer pipe and fittings

B. Ductile iron sewer pipe and fittings

C. Manhole ring and cover

E. Pre-Cast Manhole including base and pre-cast channels

F. Sewer main warning tape

TECHNICAL PROVISIONS - SECTION 06 - Page 13 of 13

G. Cleanout frame and lid

H. Exfiltration/Infiltration/Air testing method

I. Fiberglass gate frame and gates

J. Detail drawing of size, placement, and spacing of reinforcing bars for manhole bases