715PIPE CULVERTS, AND STORM AND SANITARY SEWERS

715.01Description

This work shall consist of the construction or reconstruction of pipe culverts, storm or sanitary sewers, slotted drain pipe, or slotted vane drain pipe in accordance with 105.03.

MATERIALS

715.02Materials 10

Pipe materials, minimum thickness or strength classification, and protective treatments for pipes except underdrains and drain tile will be determined based on height of cover, required service life, site abrasiveness, and structure pH criteria shown on the plans. Pipe with material thickness, strength classification, or protective coatings in excess of the minimum required by the above noted criteria may be used. When metal pipe is selected, the same base metal and coating shall be used for the structure or a pipe extension.

715.02

Concrete used for anchors, collars, grated box end sections, encasements, and sealing existing pipes shall be class A. Corrugated polyethylene pipe, TypeS has a 20 smooth interior liner with a corrugated outer wall. Type SP pipe is a TypeS pipe with perforations.

Materials shall be in acco rdance with the following:

B Borrow ..................................................................... 904.06* Geotextiles ................................................................... 918.02 Pipe Joint Sealant ........................................................ 907.11 30 Reinforcing Bars .......................................................... 910.01 Rubber Type Gaskets .................................................. 907.13 Straps, Hook Bolts, and Nuts....................................... 908.12

* B borrow consisting of ACBF or GBF shall not be used within 2 ft of the free water level.

The maximum particle size of backfill material for corrugated pipe shall be less than 1/2 the corrugation depth.

Type 1 pipe shall be used for culverts under mainline pavement and public road approaches and shall be in accordance with the following:

Clay Pipe, Extra Strength ............................................ 907.08 Corrugated Aluminum Alloy Pipe and Pipe-Arches ... 908.04 Corrugated Polyethylene Pipe, TypeS ........................ * Corrugated Polypropylene Pipe ................................... * Corrugated Steel Pipe and Pipe-Arches ....................... 908.02 Non-Reinforced Concrete Pipe, Class 3 ...................... 907.01 50 Polymer Precoated Galvanized Corrugated Steel Pipe and Pipe-Arches ............................................ 908.08 Profile Wall Polyethylene Pipe, Closed....................... * Profile Wall Polyethylene Pipe, Ribbed ...................... * Profile Wall PV C Pipe................................................. * Reinforced Concrete Horizontal Elliptical Pipe .......... 907.03 Reinforced Concrete Pipe ............................................ 907.02 Smooth Wall Polyethylene Pipe .................................. * Smooth Wall PVC Pipe ............................................... * Spiral Rib Steel Pipe .................................................... 908.02 60 Structural Plate Pipe and Pipe-Arches ......................... 908.09 * All thermoplastic pipes shall be from the QPL of Thermoplastic Pipe and Liner Pipe Sources in accordance with 907.16.

715.02

Type 2 pipe shall be used for storm sewers and shall be in accordance with the following:

Clay Pipe, Extra Strength ............................................ 907.08 Corrugated Polyethylene Pipe, TypeS ........................ * 70 Corrugated Polypropylene Pipe ................................... * Fully Bituminous Coated and Lined Corrugated Steel Pipe and Pipe-Arches ............................................ 908.07 Non-Reinforced Concrete Pipe, Class 3 ...................... 907.01 Polymer Precoated Galvanized Corrugated Steel Pipe and Pipe-Arches Type IA and Type IIA ....... 908.08 Profile Wall Polyethylene Pipe, Closed ...................... * Profile Wall Polyethylene Pipe, Ribbed ...................... * Profile Wall PVC Pipe................................................. * Reinforced Concrete Horizontal Elliptical Pipe .......... 907.03 80 Reinforced Concrete Pipe ............................................ 907.02 Smooth Wall Polyethylene Pipe .................................. * Smooth Wall PVC Pipe ............................................... * * All thermoplastic pipes shall be from the QPL of Thermoplastic Pipe and Liner Pipe Sources in accordance with 907.16.

Type 3 pipe shall be used for culverts under all drives and field entrances. All Type 1 pipe materials are acceptable.

Type 4 pipe shall be used for drain tile and longitudinal underdrains and shall be in accordance with the following:

Clay Pipe** ................................................................. 907.08 Corrugated Polyethylene Drainage Tubing ................. * Corrugated Polyethylene Pipe, TypeS** .................... * Corrugated Polyethylene Pipe, Type SP ...................... * Drain Tile** ................................................................ 907.10 Non-Reinforced Concrete Pipe .................................... 907.01 100 Perforated Clay Pipe** ................................................ 907.09 Perforated PVC Semicircular Pipe .............................. * Profile Wall PVC Pipe................................................. * * All thermoplastic pipes shall be from the QPL of Thermoplastic Pipe and Liner Pipe Sources in accordance with 907.16. ** These materials shall be used for drain tiles only.

Type 5 pipe shall be used for broken-back pipe runs where coupled or jointed pipe is desirable and shall be in accordance with the following: 110

715.02

Corrugated Aluminum Alloy Pipe and Pipe-Arches ... 908.04 Corrugated Polyethylene Pipe, TypeS ........................ * Corrugated Polypropylene Pipe ................................... * Corrugated Steel Pipe and Pipe-Arches ....................... 908.02 Fully Bituminous Coated and Lined Corrugated Steel Pipe and Pipe-Arches ................................... 908.07 Polymer Precoated Galvanized Corrugated Steel Pipe and Pipe-Arches ............................................ 908.08 Profile Wall Polyethylene Pipe, Closed....................... * 120 Profile Wall Polyethylene Pipe, Ribbed ...................... * Profile Wall PV C Pipe................................................. * Smooth Wall Polyethylene Pipe .................................. * Smooth Wall PVC Pipe ............................................... * Spiral Rib Steel Pipe .................................................... 908.02 * All thermoplastic pipes shall be from the QPL of Thermoplastic Pipe and Liner Pipe Sources in accordance with 907.16.

Slotted drain pipe shall be used to drain paved median and concrete gutter areas. 130 Slotted drain pipe shall be in accordance with 908.14.

Slotted vane drain pipe shall be used to drain driveway areas. Slotted vane drain pipe shall be in accordance with 908.14.

End bent drain pipe shall be perforated profile wall PVC pipe, perforated smooth wall PVC pipe, or corrugated polyethylene drainage tubing Type SP from the QPL of Thermoplastic Pipe and Liner Pipe Sources in accordance with 907.16. 140

Pipe for underdrain outlets and drain tile outlets shall be PSM PVC pipe, profile wall PVC pipe, smooth wall polyethylene pipe, or smooth wall PVC pipe from the QPL of Thermoplastic Pipe and Liner Pipe Sources in accordance with 907.16 and

907.24. Schedule 40 PVC pipe in accordance with 907.24 is also allowable

Grating for box end sections shall be in accordance with 910.22. Threaded inserts for Type II grated box end sections shall have a minimum pull-out capacity of 6,000 150 lb. The 1/2 in. round bolts shall have hex heads, cut washers, and where necessary, shall be furnished with the grating. Th e aggregate leveling be d required for precast units shall be coarse aggregate No. 8 in accordance with 904.03. The hardware cloth used to cover the weep holes may be plastic with 1/4 in. mesh or galvanized steel wire No. 4 mesh with a minimum wire diameter of 1/32 in. It shall be firmly anchored to the outside of the structure and shall be centered on the holes.

715.02

A Type C certification in accordance with 916 shall be provided for the materials in this section unless otherwise specified.

Metal pipe end sections shall be in accordance with 908.06. Precast concrete pipe end sections shall be in accordance with 905.06.

Pipe used for extending roadway drain castings located in a bridge deck shall be in accordance with 907.23, 907.28, or 908.10. Pipe support brackets and all hardware shall be galvanized in acco rdance with ASTM A153, class D or ASTM B695, class 40, type I. A Type C certification in accordance with 916 shall be provided for the pipe brackets. 170

Pipe used as drainage pipe through conc rete masonry as described in 702.16 shall be either profile wall or smooth wall PVC from the QPL of Thermoplastic Pipe and Liner Pipe Sources in accordance with 907.16, or steel in accordance with 908.11.

Pipe and fittings used in an enclosed bridge deck drainage system shall be cast iron soil pipe in accordance with 908.10 or reinforced thermosetting resin pipe in accordance with 907.28. All mounting hardware shall be installed in accordance with 180 the pipe manufacturer’s recommendations. All mounting hardware shall be galvanized in accordance with ASTM B695, class 40, type I. A Type C certification in accordance with 916 shall be provided for the pipe brackets.

CONSTRUCTION REQUIREMENTS

715.03General Requirements

The construction requirements, method of measurement, basis of payment, and pay items described herein shall apply, ex cept for the following, which are described in their respective sections. 190

A pipe order shall be prepared and submitted prior to delivery of pipe to the project site. The order shall include the following:

715.03

conformance with cover and service life criteria

structures.

When riprap is specified, geotextile shall first be placed on the in-situ soil in accordance with 616.11. Riprap shall then be placed in accordance with 616.

715.04Excavation

Unless otherwise directed, the trench cross-sectional dimensions shall be as shown on the plans. The trench bottom shall give full support to the pipe as shown on the plans. Recesses shall be cut to receive any projecting hubs or bells.

Where pipe is to be placed in fill sections , a portion of the fill shall be constructed

prior to installation of the pipe as shown on the plans.

Where rock or boulder formation is encountered at or above the proposed trench

bottom elevation, the trench shall be excavated at least 8 in. below the proposed grade,

backfilled with structure backfill, and compacted in accordance with 211.04.

In case a firm foundation is not encountered at the required grade, the unstable

material shall be removed to a depth that when replaced with suitable material, usually

B borrow, compacted, and properly shaped, it will produce a uniform and stable230

foundation along the entire length of the pipe. A timber mat shall be placed to hold the

pipe to line and grade if necessary.

All trenches shall be kept free from water until any joint filling material has

hardened sufficiently not to be harmed.

715.05Laying Pipe

Each section of pipe shall have a full firm bearing throughout its length, true to

the line and grade given. All pipes which settle or which are not in alignment shall be

taken up and re-laid. Pipe shall not be laid on a frozen trench bottom. Fully bituminous240

coated and lined pipe and pipe-arches shall only be placed when the ambient

temperature is 35°F or above.

Concrete and clay pipe shall be laid with hub upgrade, with the spigot end fully

extended into the adjacent hub, and with all ends fitted together tightly. Concrete pipe

shall not be laid in muck or sulphate soils.

Except for circular concrete pipe, pipe joints designed to accommodate seals or

pipe joints requiring seals shall be sealed with rubber type gaskets, caulking, pipe joint

715.04

739

sealant, elastomeric material, or sealing compound. Circular concrete pipe joints shall250

utilize rubber type gaskets.

If the infiltration of water is a factor, each joint, regardless of the type used, shall

be sealed with a compression type joint sealer in accordance with ASTM C425 or

ASTM C443, whichever is applicable.

Joints and stub-tee connections for thermoplastic pipe shall be in accordance with

the requirements of the respective material specifications for each type of pipe.

Connections of thermoplastic pipe to manholes, catch basins, and inlets shall be260

in accordance with the manufacturer’s recommendations.

Prior to being lowered into the trench, corrugated metal pipe sections shall be

examined closely and so fitted that they will form a true line of pipe when in place.

Sections which do not fit together properly shall not be used.

At the time of acceptance, all pipes shall have been cleaned and be free from silt

and other foreign matter.

Prior to constructing a pipe extension, the existing structure shall be cleaned of all270

foreign materials. Existing anchors, end sections, or headwalls shall be removed as

shown on the plans or as directed. All existing pipes which are damaged by the

removal operation shall be replaced. Removed materials shall be disposed of in

accordance with 202.

715.06Joining Pipe

Band couplers for AASHTO M 36 type I and type II corrugated steel pipe and

pipe-arches shall have corrugations that mesh with the corrugations of the pipe

sections being joined or the annular rerolled ends of those pipe sections. Band couplers

with projections or dimples may be used with pipe having either annular or helical280

corrugations only when corrugated band couplers will not provide a matching

connection to both pipes. Band couplers for AASHTO M 36 type IA and IIA

corrugated steel pipe and pipe-arches shall have corrugations that mesh with the

corrugations of the pipe or shall be gasketed flat bands. Couplers for AASHTO M 36

type IR ribbed steel pipe shall be in accordance with AASHTO M 36 and the

manufacturer’s recommendations.

At the connection of a pipe extension to an existing structure where the joint

system of the pipe extension differs from that in place, or if a satisfactory joint cannot

be obtained between the two structures, a concrete collar shall be constructed. Portions290

of the existing structure shall be removed as shown on the plans, or as necessary, to

ensure proper fit of the extension to the existing pipe. If not shown on the plans, the

collar shall have a width of at least 18 in. and a thickness of at least 6 in. around the

entire joint.

715.06

740

If rigid pipe connections are of lesser strength than that of the main barrel of a

pipe structure, these connections shall be encased with concrete at least 6 in. thick.

Any pipe which is damaged during installation shall be repaired or replaced as

directed.300

Slotted drain pipe or slotted vane drain pipe shall be constructed in 20 ft sections

with shop fabricated elbows. The upgrade end of slotted drain pipe shall be plugged

with a metal cap before backfilling. The upgrade end of slotted vane drain pipe shall

be plugged with class A concrete. Such concrete shall extend 6 in. inside the upgrade

end of the pipe.

715.07Tee and Stub-Tee Connections

At locations shown on the plans, or where directed, a stub-tee connection of the

size specified shall be furnished and placed as a tee connection to corrugated metal310

pipe, corrugated metal pipe-arch, concrete pipe, reinforced concrete pipe, or reinforced

concrete horizontal elliptical pipe.

The stub-tee connection to a corrugated metal pipe, ribbed metal pipe, or

corrugated metal pipe-arch shall be constructed of corrugated or ribbed metal and the

length of the stub shall be no less than that which readily accommodates the connecting

band. It shall be made by shop welding a stub of corrugated or ribbed metal pipe to

the respective corrugated metal pipe or pipe-arch or ribbed metal pipe at the time of

fabrication. Where field conditions warrant, stub-tee or other connections may be field

connected by using shop fabricated saddle connectors. Welds, flame cut edges, and320

damaged spelter coating shall be regalvanized or painted with zinc dust-zinc oxide

paint in accordance with Federal Specification TT-P-641, type II or MIL-P-21035.

Where applicable, damaged bituminous coating shall be repaired with asphalt mastic

in accordance with AASHTO M 243. The pipe connection to the stub shall be made

by means of connecting bands of required size or by means of concrete collars as

directed.

The stub-tee connection to concrete pipe, reinforced concrete pipe, or reinforced

concrete horizontal elliptical pipe may be field constructed or factory constructed. The

concrete used in the stub shall be of the same proportions as that used in the330

construction of such pipe. The length of the concrete stub shall be no less than 6 in.

and no more than 12 in. The pipe connection to the concrete stub shall be made by

means of a cement mortar bead or concrete collar or as directed.

715.08Blank

715.09Backfilling

All pipe trenches shall be backfilled with structure backfill. Structure backfill

shall be placed in accordance with 211. Structure backfill nominal sizes 2 in. and 1 1/2

in. shall not be used as pipe backfill on any pipe with exterior ribs, corrugations, or340

other profile.

715.07

741

If a pipe is to be backfilled using one of the flowable backfill options, design

calculations shall be submitted in accordance with 105.02, either proving the pipe will

not float or detailing the methods to be taken to prevent the pipe from floating during

installation of the flowable backfill. Prior to placing one of the flowable backfill

options for structure backfill, all standing water shall be removed from the trench. If

water cannot be removed from the trench, one of the non-flowable structure backfill

options shall be used to backfill to an elevation 2 ft above the water. The remainder of

the trench shall be backfilled as shown on the plans.350

Where material other than structure backfill is allowed and used for backfilling, it

shall be of such nature that compacts readily. The portion around and for 6 in. above

the top of the pipe shall be free from large stones. The material shall be placed in layers

not exceeding 6 in. loose measurement, and each layer shall be compacted thoroughly

by means of mechanical tamps.

Whenever a fine aggregate or dense graded backfill is placed on top of a coarse

graded backfill, geotextile, in accordance with 918.02(a), Type 2A shall be used

between the different backfill materials.360

Backfill for slotted drain pipe and slotted vane drain pipe shall consist of class A

concrete on both sides of the pipe. During the backfilling and paving operations, the

slot shall be covered to prevent infiltration of material into the pipe.

All pipes, except underdrains, will be visually inspected for acceptance a

minimum of 30 days after the completion of backfill operations. Pipes that cannot be

visually inspected shall be video inspected for acceptance using equipment in

accordance with 718.07. The Engineer will determine the sections of pipe to be video

inspected.370

For pipes that were video inspected, a copy of the video inspection shall be

provided in a format acceptable to the Engineer. The video inspection shall be

provided prior to performing the mandrel testing or if mandrel testing is not required,

prior to acceptance of the pipe.

Type 3 pipes in accordance with 715.02(c) are excluded from the mandrel testing

and video inspection requirements.

For pipe not requiring mandrel testing that is determined to be unacceptable by380

the Engineer, the unacceptable pipe shall be replaced between the nearest pipe joints

or to the nearest structure, or a remediation plan shall be prepared by a professional

engineer and submitted to the Engineer for final determination.

After the visual or video inspection, the Contractor shall check pipe deflection by

performing a mandrel test as directed on pipes manufactured from materials listed in

the following table. The Engineer will determine the runs of pipe installations to be

715.09

742

mandrel tested with a minimum of 10% of the total length of each material to be

inspected.

390

PIPES REQUIRING MANDREL TESTING

Pipe Material Standard Specifications

Corrugated Polyethylene Pipe* 907.17(b)

Corrugated Polypropylene Pipe 907.19

Profile Wall Polyethylene Pipe 907.20

Smooth Wall Polyethylene Pipe 907.21

Profile Wall PVC Pipe* 907.22

Smooth Wall PVC Pipe 907.23

* When used as underdrain pipe, mandrel testing will not be required.

The mandrel shall have a minimum of nine arms or prongs and a diameter that is

95% of the nominal pipe diameter. The Contractor shall provide a proving ring that is

95% of the nominal pipe diameter for each mandrel.

The Contractor shall pull the mandrel through the pipe by hand. If the mandrel

does not pass through the pipe, the Contractor shall measure and report the minimum

diameter of the deficient pipe to the Engineer.

If the minimum diameter of the deficient pipe is between 92.5% and 95.0% of the400

nominal pipe diameter, the Contractor shall provide an evaluation of the deficient pipe

prepared by a professional engineer. The evaluation shall consider the severity of the

deflection and its effects on structural integrity, environmental conditions, and the

design service life of the pipe. A report summarizing the evaluation and including the

professional engineer’s recommendation for acceptance, remediation, or replacement

of the pipe shall be submitted to the Engineer for final determination.

If the minimum diameter of the deficient pipe is equal to or less than 92.5% of the

nominal pipe diameter, the deficient pipe shall either be replaced or a remediation plan

shall be prepared by a professional engineer and submitted to the Engineer for final410

determination.

The deficient pipe shall be replaced if the professional engineer’s remediation

plan recommends replacement of the pipe or if the pipe has been damaged.

Deficient pipe shall at a minimum be replaced between the nearest pipe joints or

to the nearest structure. Replaced or remediated pipe sections shall be mandrel tested

a minimum of 30 days after the completion of backfill operations.

715.10Pipe End Sections, Anchors, Grated Box End Sections, and Safety420

Metal End Sections

Pipe end sections, anchors, grated box end sections, and safety metal end sections

shall be constructed as shown on the plans or as directed.

715.10

743

Straps or hook bolts required for anchors shall be as shown on the plans. Anchor

straps shall be placed at both the upstream and downstream end of each corrugated

aluminum alloy, corrugated steel, structural plate pipe, or pipe-arch with a diameter or

span of 42 in. or greater. Hook bolts and anchor straps shall be placed at both the

upstream and downstream end of each corrugated aluminum alloy, corrugated steel,

structural plate pipe, or pipe-arch with a diameter or span of 84 in. or greater.430

A dimpled connection band shall be used for connecting pipe end sections and

safety metal end sections to ends of corrugated metal pipe whose end corrugations are

not perpendicular to the centerline of the pipe.

Grated box end sections shall be constructed according to the required pipe size

and surface slope of the grated box end section specified at each location. Precast units

shall be cast as a single complete unit, except for the toewall which shall be cast in

place. They shall be set and leveled on a 6 in. thick bed of coarse aggregate. If precast

units are used and the adjoining pipe is to be field connected directly to the precast440

unit, the connection shall be made using a class A concrete collar of 6 in. minimum

longitudinal and radial thickness. Inserts for approved lifting devices may be cast in

the bottom slab of the precast sections. The number and location of lifting devices

needed for handling shall be determined by the fabricator. All reinforcement shall have

a minimum cover of 1 1/2 in. and shall have a minimum lap of 21 in. The Type A

construction joint between the floor and the wall is optional for cast in place units.

715.11Re-Laid Pipe

Where shown on the plans or as directed, existing pipe shall be taken up, re-laid,

and if necessary, extended. Removal of the pipe shall be in accordance with 202.04450

and the operations involved in its relaying shall be in accordance with similar

operations contained herein for laying new pipe.

715.12Pavement Replacement

Where a structure is to be placed under an existing pavement, the pavement

removal and replacement shall be as shown on the plans.

The pavement replacement areas in asphalt pavements shall be filled with HMA

for Structure Installation of the mixture type specified in the pay item in accordance

with 402 except OG mixtures shall be in accordance with 401.05. An MAF in460

accordance with 402.05 will not apply. Mixtures will be accepted in accordance with

402.09. Each course shall be compacted by mechanical equipment in accordance with

409.03(d)

The pavement replacement areas in Portland Cement Concrete pavements shall

be filled with PCCP in accordance with 502 except utilization of the Department

provided spreadsheet is not required for the CMDS.

715.12

744

Partial loads of HMA or PCCP left over from structure installation processes shall

not be incorporated into other work.470

715.13Method of Measurement

The accepted quantities of circular pipe, deformed pipe, slotted drain pipe, slotted

vane drain pipe, end bent drain pipe, sanitary sewer pipe, and pipe extensions will be

measured by the linear foot, complete in place.

The length of pipe to be measured for payment will be based on the net length of

pipe used, which will be obtained by multiplying the nominal length of each pipe

section by the number of sections used. If the pipe connects to manholes, inlets, or

catch basins, the terminal sections will be field measured to the outside face of the480

structure. The length of beveled or skewed terminal sections of circular corrugated or

ribbed metal pipe to be measured for payment will be the average of the top and bottom

centerline lengths for beveled ends or of the sides for skewed ends. Measurement of

deformed pipe will be made along the bottom centerline of the pipe.

Where used other than as a roadway drain extension pipe or as a bridge deck drain

system, cast iron soil pipe will be measured by the pound based on the theoretical

weight shown on the plans.

Roadway drain extension pipe will be measured per each drain extended.490

Pipe used as drainage pipe through concrete masonry or pipe used for bridge deck

drainage system will not be measured for payment.

Reinforcing bars, straps, and hook bolts used in anchors will not be measured for

payment. Concrete used for backfill of slotted drain pipe and slotted vane drain pipe

will not be measured for payment.

Excavation above the trench bottom elevation shown on the plans will not be

measured for payment. Additional excavation below the proposed trench bottom500

elevation required to install the pipe at a lower elevation or to remove rock or

unsuitable material will be measured in accordance with 203.27(b).

Pipe end sections, concrete anchors, and safety metal end sections will be

measured by the number of units of each size installed. The size of the end section,

concrete anchor, and safety metal end section will be considered as the nominal

diameter of the pipe to which they are attached. A concrete anchor attached at one end

of twin pipes will be measured as two concrete anchors. A concrete anchor attached at

one end of triple pipes will be measured as three concrete anchors.

510

Tee, stub-tee, and wye branch connections will be measured along the centerline

of the barrel. An additional 5 lft of the smaller diameter pipe will be included for

making such connection.

715.13

745

Elbow connections will be measured along the centerline of such connection. An

additional 2 lft of pipe of the same diameter as that of the elbow will be included for

each such connection.

If increaser or reducer connections are made, measurement will be made on the

basis of the larger diameter pipe for the full length of the section forming such520

connections.

Structure backfill will be measured in accordance with 211.09. Flowable backfill

will be measured in accordance with 213.08.

Pavement replacement and subbase necessary due to structure placement under

an existing pavement will be measured to the neat lines shown on the plans.

For structures for which the plans show pipes of differing sizes for either smooth,

semi-smooth or corrugated interiors, and either the semi-smooth corrugated interior530

alternate is installed, measurement of structure backfill or flowable backfill will be

based on the neat line dimensions shown on the plans for the smooth interior alternate.

Grated box end sections will be measured per each for the specified type, surface

slope, and pipe size.

Video inspection for pipe will be measured by the linear foot as determined by

the electronic equipment.

Geotextile used for backfill material will not be measured for payment.540

715.14Basis of Payment

The accepted quantities of pipe and pipe extensions will be paid for at the contract

unit price per linear foot for pipe of the type, shape, and size specified, complete in

place. Where used other than as a roadway drain casting extension pipe or as a bridge

deck drain system, cast iron soil pipe will be paid for at the contract unit price per

pound for the diameter specified.

Pipe end sections, concrete anchors, and safety metal end sections will be paid for

at the contract unit price per each for the size specified, complete in place. A concrete550

anchor attached at one end of twin pipes will be paid for as two concrete anchors. A

concrete anchor attached at one end of triple pipes will be paid for as three concrete

anchors.

Roadway drain casting extension pipe will be paid for at the contract unit price

per each.

Pavement replacement necessary due to structure installation under an existing

pavement will be paid for at the contract unit price per ton of HMA for structure

installation of the type specified and per square yard for PCCP for structure560

715.14

746

installation. Subbase will be paid for in accordance with 302.09.

Structure backfill will be paid for in accordance with 211.10. Where used as a

substitute for structure backfill, flowable backfill will be paid for as structure backfill.

When specified for pipe backfill, flowable backfill will be paid for in accordance with

213.09

If a pipe structure is lowered, relocated, or if unsuitable material is encountered

so that additional excavation is necessary over and above that shown on the plans at

the original location, such additional excavation will be paid for at three times the570

contract unit price for the class of excavation involved. If the contract does not include

rock excavation or unclassified excavation, rock removal below the proposed trench

bottom elevation will be paid for at three times the contract unit cost for common

excavation. However, in each of the above cases, such excavation will not be paid for

if the additional amount involved at such structure is 10 cu yds or less.

For structures for which the plans show pipes of differing sizes for smooth, semi-

smooth or corrugated interiors, and either the semi-smooth or the corrugated interior

alternate is installed, payment for pipe backfill will be made based on the neat line

dimensions shown on the plans for the smooth interior alternate.580

Grated box end sections will be paid for at the contract unit price per each for the

specified type, surface slope, and pipe size.

Video inspections for pipe will be paid for at the contract unit price per linear foot

completed.

Payment will be made under:

Pay Item Pay Unit Symbol590

Concrete Anchor, ________ in.................................................. EACH

diameter

Concrete Anchor, Min. Area ____ sq ft .................................... EACH

Grated Box End Section, ____, ____, ________ in. ................. EACH

type slope diameter

Grated Box End Section, ____, ____, Min. Area ____ sq ft ..... EACH

type slope

HMA for Structure Installation, Type ............................ TON

mixture type600

PCCP for Structure Installation ................................................. SYS

Pipe End Section, ________ in.................................................. EACH

diameter

Pipe End Section, Min. Area ____ sq ft .................................... EACH

Pipe Extension, Circular, ________ in., ________ ................... LFT

diameter material

715.14

747

Pipe Extension, Deformed, Min. Area ____ sq ft, ________ .... LFT

material

Pipe, Bridge Deck Drain System ............................................... LS

Pipe, Drainage through Concrete Masonry ............................... LS610

Pipe, End Bent Drain, ________ in. .......................................... LFT

diameter

Pipe, Relaid, ____ in. x ____ in. ............................................... LFT

span rise

Pipe, Relaid, ________ in. ........................................................ LFT

diameter

Pipe, Roadway Drain Casting Extension ................................... EACH

Pipe, Sanitary Sewer, ________ in. ........................................... LFT

diameter

Pipe, Slotted Drain, ________ in., ________ in........................ LFT620

diameter thickness

Pipe, Slotted Vane Drain, ________ in. .................................... LFT

diameter

Pipe, Type ____, Circular, ________ in. ................................... LFT

diameter

Pipe, Type ____, Deformed, Min. Area ____ sq ft ................... LFT

Pipe, Underdrain Outlet, ________ in. ...................................... LFT

diameter

Safety Metal End Section, ____, ________ in. ......................... EACH

slope diameter630

Safety Metal End Section, ____, Min. Area ____ sq ft ............. EACH

slope

Soil Pipe, Cast Iron, _______ in. ............................................... LBS

diameter

Video Inspection for Pipe .......................................................... LFT

The cost of reinforcing bars, straps, and hook bolts used in anchors shall be

included in the cost of the concrete anchor.

The cost of the toe plate anchor and galvanized bolts required for pipe end sections640

and safety metal end sections shall be included in the cost of the pay items.

The cost of pipe support brackets and all hardware used to attach the roadway

drain casting extension pipe to the drain casting and the pipe support bracket to the

structural member and to the drain extension pipe shall be included in the cost of the

pay items.

The cost of the pipe, all necessary fittings, all mounting hardware, design costs,

and all other costs to provide the bridge deck drain system shown on the plans shall be

included in the lump sum cost of the bridge deck drain system.650

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748

The cost of concrete backfill for slotted drain pipe and slotted vane drain pipe

shall be included in the cost of the pay items.

B borrow obtained from planned excavation may be used to backfill culverts. No

deduction will be made from the excavation or borrow quantities.

If existing concrete building foundations, concrete walls, concrete columns, or

concrete steps not visible and not shown on the plans are encountered within the limits

of the trench, the removal of such items, as required, will be paid for in accordance660

with 203.28.

The cost of sawing of pavement, excavation above the trench bottom elevation

shown on plans, backfilling with material other than structure backfill or flowable

backfill, dewatering, shoring, timber mats, class A concrete required for collar

construction or sealing existing pipe, joint materials, replacing pipe which is damaged

during installation or re-laying operations, sanitary sewer testing required by the local

utility, and all other necessary incidentals shall be included in the cost of the pay items

in this section.

670

The cost of removal of pavement, existing pipe, end sections, anchors, or

headwalls, concrete collars, encasements, and the disposal of surplus materials shall

be included in the cost of the pay items.

The cost of concrete, grating, pipe tubing, reinforcing bars, aggregate leveling

bed, hardware cloth, and necessary incidentals, for construction of grated box end

sections will be included in the cost of the grated box end section.

Geotextile required to be placed on top of the structure backfill material will not

be paid for separately. The cost of the geotextile shall be included in the cost of the680

structure backfill.

The cost of providing video inspection equipment, technician, and a copy of the

video inspection shall be included in the cost of video inspection for pipe.

No additional payment will be made for repair, remediation, or replacement of

pipes, backfill, video inspection of the repaired, remediated, or replaced pipe, and all

other work associated with the repair, remediation, or replacement of unacceptable

pipes.

690

The cost of mandrel testing shall be included in the cost of the pipe.

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