DelDOT Standard Specifications 601: Pipe Culverts

601.1Description.

This work consists of providing and placing pipe culverts, flared end sections, and connections to existing drainage inlets and manholes.

601.2Materials.

A.Reinforced Concrete Pipe Section 1031

B.Thermoplastic Pipe Section 1031

C.Flared End Section Section 1031

D.GABC Section 1005

E.PCC, Class A, B, or C Section 1022

F.Chemical Sealing Section 1047.5

G.Mortar Section 1047.6

H.Liquid Membrane-Forming Compounds for Curing Section 1045.7

I.Borrow Section 1001

J.Aggregate

601.3Construction.

601.3.1 Preconstruction Inspection. The Department will review all existing pipes for use in the final drainage system and will discuss the system condition with the contractor before starting construction. 601.3.2 Excavation and Pipe Bedding.

A.Excavate pipe trenches to the minimum widths as follows:

1.For reinforced concrete pipe, provide a minimum trench width in accordance with ASTM C1479.

2.For thermoplastic pipe provide a minimum trench width in accordance with ASTM D2321.

B.Excavate the pipe trench within the template of the item in accordance with Section 202.3 and the

Standard Construction Details. Remove unsuitable material encountered below the proposed pipe bedding and replace as directed by the engineer in accordance with Section 202.3.7.

C.When the contract calls for placing pipe in an embankment or fill area that has not been fully

constructed, create a fill area for the pipe a minimum width of 2 pipe diameters on each side of the pipe and 18-inches over the top of the pipe. If the embankment finished elevation is less than 18-inches above the pipe, build the fill to the finished elevation. Once the fill area is created, trench for pipe placement.

D.Place bedding in accordance with the Standard Construction Details. When Class A bedding is

specified, cure PCC with materials in accordance with Section 1022.6. When Class C bedding is specified:

1.Meet the requirements of ASTM C1479 for reinforced concrete pipe.

2.Meet the requirements of ASTM D2321 for thermoplastic pipe.

E.Excavate rock in accordance with Section 207.3.C, to the satisfaction of the Engineer.

601.3.3 Reinforced Concrete Pipe.

A.Joints

1.Before laying the pipe in the trench, attach the rubber gasket or joint sealant to the spigot end

of each pipe as follows:

a.For bell and spigot pipe, use a rubber gasket in accordance with ASTM C443. Place the rubber

gasket around the entire circumference of the spigot and set firmly against the offset step. Before installation, apply a lubricant specified by the gasket manufacturer.

b.For pipe manufactured with tongue and groove joints, use performed flexible bitumen or

butyl joint sealant in accordance with ASTM C990. Apply the sealant around the entire circumference of the pipe tongue in a position that will ensure compression against the opposing pipe groove. Follow the sealant manufacturer’s recommendations when applying the sealant.

2.Control pipe handling, after affixing the gasket, to avoid bumping, displacing, or fouling the

gasket with dirt or other material. Remove disturbed gaskets and reposition if displaced or replace if damaged. Apply sufficient pressure when making the joint to ensure that the joint is tight.

B.Placing pipe

Lay pipe in an upgrade direction in accordance with the contract and the requirements of ASTM C1479. Lay the pipe with the lowest point of the inside diameter conforming to the flow line shown in the contract. Lay pipe with the bell ends facing up grade and with the spigot ends fully entered into each bell end. Place adjacent pipes with a gap of a minimum of 18-inches between the outside of the pipes.

C.Defects

1.The engineer will reject pipe pre-installation for any of the following reasons:

a.An illegible brand;

b.spalls; and

c.cracks greater than 0.01-inch in width extending 12-inches or greater regardless of position in

the pipe wall or is continuous through the wall of the pipe and in accordance with AASHTO M207 or M170.

2.The engineer will determine the need for remediation or replacement for pipe post-installation

for any of the following reasons:

a.Vertical or horizontal misalignment;

b.spalls;

c.slabbing meaning large slabs of concrete peeling away from the sides with a straightening of

the reinforcement;

d.cracks greater than 0.01-inch in width extending 12-inches or greater regardless of position;

e.cracks greater than 0.1-inch in width and in accordance with AASHTO M207 or M170;

f.differential joint movement;

g.improper gasket or joint sealant placement;

h.joint leakage;

i.settlement; and

j.joint separations greater than manufacturer’s recommendation or as follows, whichever is

less:

i.12-inch to 36-inch diameter 0.75-inch

ii. 42-inch and larger diameter 1.25-inch iii. All elliptical pipe 1.50-inch 601.3.4 Thermoplastic Pipe.

A.Joints.

1.For typeS pipes, use gasketed watertight bell and spigot in accordance with ASTM D3212.

2.For type C pipe, use bell and spigot joints in accordance with ASTM D3212. For split-collar

couplings, engage at least 2 full corrugations on each pipe section. Use screw-on collars at least 1/2 the nominal diameter of the pipe wide.

B.Placing pipe.

Lay pipe in an upgrade direction in accordance with the contract and the requirements of ASTM D2321. Lay the pipe with the lowest point of the inside diameter conforming to the flow line shown in the contract. Lay the pipe with the bell ends facing upgrade and with the spigot ends fully entered into each bell end. Place adjacent pipes with a gap of a minimum of 18-inches or 1/2 of the inside diameter, whichever is greater.

C.Defects.

1.The engineer will reject pipe pre-installation for any of the following reasons:

a.Illegible brand;

b.unpigmented or non-uniformly pigmented pipe; and

c.cracking or tearing.

2.The engineer will determine remedial or replacement for pipe post-installation for any of the

following reasons:

a.pipe deflection greater than 5 percent or the manufacturer’s recommendation, whichever is

less;

b.vertical or horizontal joint misalignment;

c.connections with a gap exceeding 3/16-inch;

d.cracking or tearing;

e.creases; and

f.joint separations greater than the manufacturer’s recommendation or 1-inch, whichever is

less. 601.3.5 Flared End Section.

A.Excavate within the template of the item in accordance with Section 207 and the Standard

Construction Details.

B.Remove unsuitable material when encountered and replace with approved material.

C.Compact the foundation.

D.Place GABC to the required thickness in accordance with Section 301.

E.Pour concrete cutoff wall in accordance with the Standard Construction Details and cure PCC with

materials in accordance with Section 1022.6.

F.Install flared end sections in accordance with Sections 601.3.2, 601.3.3, or the manufacturer’s

recommendations. 601.3.6 Backfill.

A.Backfill pipe and compact backfill in accordance with Section 207.3.D, and as follows:

1.Around the pipe, place an initial backfill lift no more than 8-inches thick of loose material and no

higher than the springline of the pipe. Ensure that backfill material fills the space under the haunches of the pipe by knifing with a shovel or blade.

a.For reinforced concrete pipe, provide material conforming to ASTM C1379 and place material

in accordance with ASTM C1479 to the springline.

b.For thermoplastic pipe, provide material conforming to ASTM D2321 and place material in

accordance with ASTM D2321 to 6-inches above the pipe.

2.Above the pipe:

a.Within the road box, place Borrow, Type C to the bottom of the road box.

b.Outside the road box, place Borrow Type F to the top of the trench.

B.Use existing material for backfill if it meets the backfill requirements outlined in Section 601.3.6.A.

C.Where heavy construction equipment will travel over the pipe, place a minimum of 4-feet of cover

over the pipe.

D.When specified by the contract, use flowable backfill material.

1.Provide a trench that measures 6-inches from the trench wall to outside wall of the pipe on both

sides of the pipe. When placing multiple pipes side by side, provide a minimum of 6-inches between the pipes.

2.Place flowable fill equally to both sides of the pipe. Ensure that the fill on 1 side of the pipe does

not exceed the height of the fill on the other side by more than 12-inches.

601.3.7 Cleaning Pipe.

A.Submit the source for the cleaning water to the engineer for approval. Use only water that is safe

for all downstream environments.

B.Remove and dispose of material removed during the pipe cleaning operation at a site approved by

the engineer in accordance with Section 106.8.

C.Clean all new pipe culverts and all existing pipe culverts as designated in the contract without

damaging the pipe, pipe joints, or connecting structures by flushing with high pressure water. Using equipment that complies with the manufacturer’s recommendations for the pipe size, expose all inside surfaces and joints to the satisfaction of the engineer. If these methods do not adequately clean the pipe after 3 passes, the engineer may direct the contractor to use other procedures covered by heavy pipe cleaning or other items of work.

1.New pipe culvert shall be cleaned prior to post installation inspection. Provide adequate

cleaning that allows for an unobstructed view of all joints and for accurate defect measurement.

2.Clean existing pipe culverts designated to be cleaned to the satisfaction of the engineer.

3.Remove and dispose of materials in accordance with Section 106.8.

D.Heavy Pipe Cleaning.

Submit methods for heavy pipe cleaning to the engineer for approval before beginning work. 601.3.8 Post Installation Inspection.

A.The Department will video, deflection test, or manually inspect repaired, lined, or new pipes 48-

inches in diameter or less no sooner than 30-days after placement or before placement of the final lift of hot mix.

B.The Department will manually inspect pipes 48-inches in diameter or larger.

C.Clean pipes in accordance with Section 601.3.7 before video or manual inspection.

D.Provide traffic control in accordance with the DE MUTCD during pipe inspection, as needed.

E.The Department will conduct inspections of pipes placed under paved areas, or areas planned for

paving, before placement of the final layer of roadway pavement material.

F.Defects determined by the engineer to require remedial work will require submittal and approval

of the repair. 601.3.9 Personnel Safety Grate for Pipe Inlet

A.Prepare and submit working drawings in accordance with Section 105.4.

B.Construct personnel safety grates for pipe inlets in accordance with the Standard Construction

Details.

601.4Method of Measurement.

A.The Department will measure:

1.Pipe culverts as linear feet for each type of pipe placed and accepted, measured from end to

end. The measurement will include the portion of the pipe in the structure wall to the inside face of the structure. The Department will not consider the linear footage of pipe to include beyond the inside face of the structure wall nor flared end sections.

a.The template of the pipe is defined by the vertical planes located 18-inches outside the neat

line perimeter of the pipe.

2.Extra depth excavation for pipe trench as the cubic yards of material excavated. Payment limits

are defined as the vertical planes located 18-inches outside the neat line perimeter of the pipe, and the horizontal plane located 18-inches below the neat line perimeter of the pipe.

3.Flared end sections as each accepted and placed.

a.The template of the flared end section is defined by the vertical planes located 18-

inches outside the neat line perimeter of the flared end section.

4.Cleaning of existing drainage pipe as linear feet cleaned and accepted, measured from end to

end.

5.Heavy pipe cleaning as the number of hours the contractor actively engages in heavy pipe

cleaning work.

6.Personnel safety grate for pipe inlet as the number of each installed and accepted.

601.5Basis of Payment.

A.The Department will pay the quantity of:

1.Pipe culverts at the contract unit price per linear foot. Price and payment will constitute full

compensation for:

a.Excavating within the template of the pipe;

b.shoring;

c.removal and disposal of existing materials;

d.bedding preparations;

e.supplying, placing, and curing PCC;

f.providing and placing materials, including backfill and backfilling;

g.compaction;

h.forms and forming;

i.placing bedding;

j.removing surplus materials;

k.cleaning in accordance with Section 601.3.7 and maintenance of traffic to support the pipe

video inspection; and

l.removing and replacing damaged pipe.

2.Flared end sections at the contract unit price per each. Price and payment will constitute full

compensation for:

a.Excavating within the template of the flared end section;

b.shoring;

c.removal and disposal of existing materials;

d.bedding and foundation preparation;

e.providing and placing materials, including backfill and backfilling;

f.compaction;

g.forms and forming;

h.supplying, placing, finishing, and curing PCC;

i.mortar;

j.removing surplus materials; and

k.removing and replacing damaged pipe.

3.Pipe cleaned at the contract unit price per linear foot. Price and payment will constitute full

compensation for providing equipment and water, cleaning the pipe, and disposing of removed material.

4.Heavy pipe cleaning at the contract unit price per hour. Price and payment will constitute full

compensation for providing equipment and water, cleaning the pipe, and disposing of removed material.

5.Personnel safety grate for pipe inlet at the contract unit price per each. Price and payment

constitute full compensation for:

a.preparing submittals and working drawings;

b.providing and placing all materials;

c.fabricating;

d.disposal;

e.pad lock;

f.bar reinforcement; and

g.coatings.

B.The Department will pay for:

1.Excavation and embankment outside the template of the item in accordance with Section 202 at

the direction of the engineer or contract.

2.Extra depth excavation in accordance with Section 207.

3.Providing flowable fill in accordance with Section 208.

ITEM DESCRIPTION UNIT 601000 CLEANING DRAINAGE PIPE, 12"-24" DIAMETER LF 601001 CLEANING DRAINAGE PIPE, GREATER THAN 24" DIAMETER LF 601002 HEAVY CLEANING OF DRAINAGE PIPE HOUR 601010 REINFORCED CONCRETE PIPE, 12", CLASS III LF 601011 REINFORCED CONCRETE PIPE, 15", CLASS III LF 601012 REINFORCED CONCRETE PIPE, 18", CLASS III LF

ITEM DESCRIPTION UNIT 601013 REINFORCED CONCRETE PIPE, 21", CLASS III LF 601014 REINFORCED CONCRETE PIPE, 24", CLASS III LF 601015 REINFORCED CONCRETE PIPE, 27", CLASS III LF 601016 REINFORCED CONCRETE PIPE, 30", CLASS III LF 601017 REINFORCED CONCRETE PIPE, 33", CLASS III LF 601018 REINFORCED CONCRETE PIPE, 36", CLASS III LF 601019 REINFORCED CONCRETE PIPE, 42", CLASS III LF 601020 REINFORCED CONCRETE PIPE, 48", CLASS III LF 601021 REINFORCED CONCRETE PIPE, 54", CLASS III LF 601022 REINFORCED CONCRETE PIPE, 60", CLASS III LF 601023 REINFORCED CONCRETE PIPE, 66", CLASS III LF 601024 REINFORCED CONCRETE PIPE, 72", CLASS III LF 601025 REINFORCED CONCRETE PIPE, 78", CLASS III LF 601026 REINFORCED CONCRETE PIPE, 84", CLASS III LF 601027 REINFORCED CONCRETE PIPE, 90", CLASS III LF 601028 REINFORCED CONCRETE PIPE, 96", CLASS III LF 601029 REINFORCED CONCRETE PIPE, 102", CLASS III LF 601031 REINFORCED CONCRETE PIPE, 12", CLASS IV LF 601032 REINFORCED CONCRETE PIPE, 15", CLASS IV LF 601033 REINFORCED CONCRETE PIPE, 18", CLASS IV LF 601034 REINFORCED CONCRETE PIPE, 21", CLASS IV LF 601035 REINFORCED CONCRETE PIPE, 24", CLASS IV LF 601036 REINFORCED CONCRETE PIPE, 27", CLASS IV LF 601037 REINFORCED CONCRETE PIPE, 30", CLASS IV LF 601038 REINFORCED CONCRETE PIPE, 33", CLASS IV LF 601039 REINFORCED CONCRETE PIPE, 36", CLASS IV LF 601040 REINFORCED CONCRETE PIPE, 42", CLASS IV LF 601041 REINFORCED CONCRETE PIPE, 48", CLASS IV LF 601042 REINFORCED CONCRETE PIPE, 54", CLASS IV LF 601043 REINFORCED CONCRETE PIPE, 60", CLASS IV LF 601044 REINFORCED CONCRETE PIPE, 66", CLASS IV LF 601045 REINFORCED CONCRETE PIPE, 72", CLASS IV LF 601046 REINFORCED CONCRETE PIPE, 78", CLASS IV LF 601047 REINFORCED CONCRETE PIPE, 84", CLASS IV LF 601048 REINFORCED CONCRETE PIPE, 90", CLASS IV LF 601049 REINFORCED CONCRETE PIPE, 96", CLASS IV LF 601050 REINFORCED CONCRETE PIPE, 102", CLASS IV LF 601051 REINFORCED CONCRETE PIPE, 108", CLASS IV LF 601052 REINFORCED CONCRETE PIPE, 12", CLASS V LF

ITEM DESCRIPTION UNIT 601053 REINFORCED CONCRETE PIPE, 15", CLASS V LF 601054 REINFORCED CONCRETE PIPE, 18", CLASS V LF 601055 REINFORCED CONCRETE PIPE, 21", CLASS V LF 601056 REINFORCED CONCRETE PIPE, 24", CLASS V LF 601057 REINFORCED CONCRETE PIPE, 27", CLASS V LF 601058 REINFORCED CONCRETE PIPE, 30", CLASS V LF 601059 REINFORCED CONCRETE PIPE, 33", CLASS V LF 601060 REINFORCED CONCRETE PIPE, 36", CLASS V LF 601061 REINFORCED CONCRETE PIPE, 42", CLASS V LF 601062 REINFORCED CONCRETE PIPE, 48", CLASS V LF 601063 REINFORCED CONCRETE PIPE, 54", CLASS V LF 601065 REINFORCED CONCRETE PIPE, 66", CLASS V LF 601066 REINFORCED CONCRETE PIPE, 72", CLASS V LF 601067 REINFORCED CONCRETE PIPE, 78", CLASS V LF 601068 REINFORCED CONCRETE PIPE, 84", CLASS V LF 601069 REINFORCED CONCRETE PIPE, 90", CLASS V LF 601070 REINFORCED CONCRETE PIPE, 96", CLASS V LF 601071 REINFORCED CONCRETE PIPE, 102", CLASS V LF 601072 REINFORCED CONCRETE PIPE, 108", CLASS V LF 601100 REINFORCED CONCRETE ELLIPTICAL PIPE, 14"X23", CLASS III LF 601101 REINFORCED CONCRETE ELLIPTICAL PIPE, 19"X30", CLASS III LF 601102 REINFORCED CONCRETE ELLIPTICAL PIPE, 22"X34", CLASS III LF 601103 REINFORCED CONCRETE ELLIPTICAL PIPE, 24"X38", CLASS III LF 601104 REINFORCED CONCRETE ELLIPTICAL PIPE, 27"X42", CLASS III LF 601105 REINFORCED CONCRETE ELLIPTICAL PIPE, 29"X45", CLASS III LF 601106 REINFORCED CONCRETE ELLIPTICAL PIPE, 32"X49", CLASS III LF 601107 REINFORCED CONCRETE ELLIPTICAL PIPE, 34"X53", CLASS III LF 601108 REINFORCED CONCRETE ELLIPTICAL PIPE, 38"X60", CLASS III LF 601109 REINFORCED CONCRETE ELLIPTICAL PIPE, 43"X68", CLASS III LF 601110 REINFORCED CONCRETE ELLIPTICAL PIPE, 48"X76", CLASS III LF 601111 REINFORCED CONCRETE ELLIPTICAL PIPE, 53"X83", CLASS III LF 601112 REINFORCED CONCRETE ELLIPTICAL PIPE, 58"X91", CLASS III LF 601113 REINFORCED CONCRETE ELLIPTICAL PIPE, 63"X98", CLASS III LF 601114 REINFORCED CONCRETE ELLIPTICAL PIPE, 68"X106", CLASS III LF 601115 REINFORCED CONCRETE ELLIPTICAL PIPE, 14"X23", CLASS IV LF 601116 REINFORCED CONCRETE ELLIPTICAL PIPE, 19"X30", CLASS IV LF 601118 REINFORCED CONCRETE ELLIPTICAL PIPE, 24"X38", CLASS IV LF 601120 REINFORCED CONCRETE ELLIPTICAL PIPE, 29"X45", CLASS IV LF 601121 REINFORCED CONCRETE ELLIPTICAL PIPE, 32"X49", CLASS IV LF

ITEM DESCRIPTION UNIT 601122 REINFORCED CONCRETE ELLIPTICAL PIPE, 34"X53", CLASS IV LF 601123 REINFORCED CONCRETE ELLIPTICAL PIPE, 38"X60", CLASS IV LF 601124 REINFORCED CONCRETE ELLIPTICAL PIPE, 43"X68", CLASS IV LF 601126 REINFORCED CONCRETE ELLIPTICAL PIPE, 53"X83", CLASS IV LF 601127 REINFORCED CONCRETE ELLIPTICAL PIPE, 58"X91", CLASS IV LF 601128 REINFORCED CONCRETE ELLIPTICAL PIPE, 63"X98", CLASS IV LF 601129 REINFORCED CONCRETE ELLIPTICAL PIPE, 68"X106", CLASS IV LF 601130 REINFORCED CONCRETE ELLIPTICAL PIPE, 14"X23", CLASS V LF 601131 REINFORCED CONCRETE ELLIPTICAL PIPE, 19"X30", CLASS V LF 601132 REINFORCED CONCRETE ELLIPTICAL PIPE, 22"X34", CLASS V LF 601133 REINFORCED CONCRETE ELLIPTICAL PIPE, 24"X38", CLASS V LF 601134 REINFORCED CONCRETE ELLIPTICAL PIPE, 27"X42", CLASS V LF 601135 REINFORCED CONCRETE ELLIPTICAL PIPE, 29"X45", CLASS V LF 601136 REINFORCED CONCRETE ELLIPTICAL PIPE, 32"X49", CLASS V LF 601137 REINFORCED CONCRETE ELLIPTICAL PIPE, 34"X53", CLASS V LF 601138 REINFORCED CONCRETE ELLIPTICAL PIPE, 38"X60", CLASS V LF 601139 REINFORCED CONCRETE ELLIPTICAL PIPE, 43"X68", CLASS V LF 601140 REINFORCED CONCRETE FLARED END SECTION, 12" EACH 601141 REINFORCED CONCRETE FLARED END SECTION, 15" EACH 601142 REINFORCED CONCRETE FLARED END SECTION, 18" EACH 601143 REINFORCED CONCRETE FLARED END SECTION, 21" EACH 601144 REINFORCED CONCRETE FLARED END SECTION, 24" EACH 601145 REINFORCED CONCRETE FLARED END SECTION, 27" EACH 601146 REINFORCED CONCRETE FLARED END SECTION, 30" EACH 601147 REINFORCED CONCRETE FLARED END SECTION, 33" EACH 601148 REINFORCED CONCRETE FLARED END SECTION, 36" EACH 601149 REINFORCED CONCRETE FLARED END SECTION, 42" EACH 601150 REINFORCED CONCRETE FLARED END SECTION, 48" EACH 601151 REINFORCED CONCRETE FLARED END SECTION, 54" EACH 601152 REINFORCED CONCRETE FLARED END SECTION, 60" EACH 601153 REINFORCED CONCRETE FLARED END SECTION, 66" EACH 601154 REINFORCED CONCRETE FLARED END SECTION, 72" EACH 601155 REINFORCED CONCRETE FLARED END SECTION, 78" EACH 601156 REINFORCED CONCRETE FLARED END SECTION, 84" EACH 601157 REINFORCED CONCRETE FLARED END SECTION, 90" EACH 601170 REINFORCED CONCRETE FLARED END SECTION, 14" X 23" EACH 601171 REINFORCED CONCRETE FLARED END SECTION, 19" X 30" EACH 601172 REINFORCED CONCRETE FLARED END SECTION, 22" X 34" EACH 601173 REINFORCED CONCRETE FLARED END SECTION, 24" X 38" EACH 601174 REINFORCED CONCRETE FLARED END SECTION, 27" X 42" EACH 601175 REINFORCED CONCRETE FLARED END SECTION, 29" X 45" EACH 601176 REINFORCED CONCRETE FLARED END SECTION, 32" X 49" EACH 601177 REINFORCED CONCRETE FLARED END SECTION, 34" X 53" EACH REINFORCED CONCRETE FLARED END SECTION, 66" EACH 601154 REINFORCED CONCRETE FLARED END SECTION, 72" EACH 601155 REINFORCED CONCRETE FLARED END SECTION, 78" EACH 601156 REINFORCED CONCRETE FLARED END SECTION, 84" EACH 601157 REINFORCED CONCRETE FLARED END SECTION, 90" EACH 601170 REINFORCED CONCRETE FLARED END SECTION, 14" X 23" EACH 601171 REINFORCED CONCRETE FLARED END SECTION, 19" X 30" EACH 601172 REINFORCED CONCRETE FLARED END SECTION, 22" X 34" EACH 601173 REINFORCED CONCRETE FLARED END SECTION, 24" X 38" EACH

ITEM DESCRIPTION UNIT 601174 REINFORCED CONCRETE FLARED END SECTION, 27" X 42" EACH 601175 REINFORCED CONCRETE FLARED END SECTION, 29" X 45" EACH 601176 REINFORCED CONCRETE FLARED END SECTION, 32" X 49" EACH 601177 REINFORCED CONCRETE FLARED END SECTION, 34" X 53" EACH 601178 REINFORCED CONCRETE FLARED END SECTION, 38" X 60" EACH 601179 REINFORCED CONCRETE FLARED END SECTION, 43" X 68" EACH 601180 REINFORCED CONCRETE FLARED END SECTION, 48" X 76" EACH 601190 PVC PIPE, 4” LF 601191 PVC PIPE, 6” LF 601192 PVC PIPE, 8” LF 601193 PVC PIPE, 10” LF 601194 PVC PIPE, 12” LF 601195 PVC PIPE, 14” LF 601196 PVC PIPE, 16” LF 601197 PVC PIPE, 18” LF 601198 PVC PIPE, 20” LF 601199 PVC PIPE, 24” LF 601210 CORRUGATED POLYETHYLENE PIPE, TYPE C, 8" LF 601211 CORRUGATED POLYETHYLENE PIPE, TYPE C, 10" LF 601212 CORRUGATED POLYETHYLENE PIPE, TYPE C, 12" LF 601213 CORRUGATED POLYETHYLENE PIPE, TYPE C, 15" LF 601214 CORRUGATED POLYETHYLENE PIPE, TYPE C, 18" LF 601215 CORRUGATED POLYETHYLENE PIPE, TYPE C, 21" LF 601216 CORRUGATED POLYETHYLENE PIPE, TYPE C, 24" LF 601217 CORRUGATED POLYETHYLENE PIPE, TYPES, 8" LF 601218 CORRUGATED POLYETHYLENE PIPE, TYPES, 10" LF 601219 CORRUGATED POLYETHYLENE PIPE, TYPES, 12" LF 601220 CORRUGATED POLYETHYLENE PIPE, TYPES, 15" LF 601221 CORRUGATED POLYETHYLENE PIPE, TYPES, 18" LF 601222 CORRUGATED POLYETHYLENE PIPE, TYPES, 21" LF 601224 CORRUGATED POLYETHYLENE PIPE, TYPES, 30" LF 601225 CORRUGATED POLYETHYLENE PIPE, TYPES, 36" LF 601226 CORRUGATED POLYETHYLENE PIPE, TYPES, 42" LF 601227 CORRUGATED POLYETHYLENE PIPE, TYPES, 48" LF 601228 CORRUGATED POLYETHYLENE PIPE, TYPES, 54" LF 601229 CORRUGATED POLYETHYLENE PIPE, TYPES, 60" LF 601240 CORRUGATED POLYETHYLENE FLARED END SECTION, 12" EACH 601241 CORRUGATED POLYETHYLENE FLARED END SECTION, 15" EACH 601242 CORRUGATED POLYETHYLENE FLARED END SECTION, 18" EACH 601243 CORRUGATED POLYETHYLENE FLARED END SECTION, 24" EACH 601244 CORRUGATED POLYETHYLENE FLARED END SECTION, 30" EACH 601245 CORRUGATED POLYETHYLENE FLARED END SECTION, 36" EACH CORRUGATED POLYETHYLENE PIPE, TYPES, 15" LF 601221 CORRUGATED POLYETHYLENE PIPE, TYPES, 18" LF 601222 CORRUGATED POLYETHYLENE PIPE, TYPES, 21" LF 601224 CORRUGATED POLYETHYLENE PIPE, TYPES, 30" LF 601225 CORRUGATED POLYETHYLENE PIPE, TYPES, 36" LF 601226 CORRUGATED POLYETHYLENE PIPE, TYPES, 42" LF 601227 CORRUGATED POLYETHYLENE PIPE, TYPES, 48" LF 601228 CORRUGATED POLYETHYLENE PIPE, TYPES, 54" LF 601229 CORRUGATED POLYETHYLENE PIPE, TYPES, 60" LF 601240 CORRUGATED POLYETHYLENE FLARED END SECTION, 12" EACH 601241 CORRUGATED POLYETHYLENE FLARED END SECTION, 15" EACH 601242 CORRUGATED POLYETHYLENE FLARED END SECTION, 18" EACH

ITEM DESCRIPTION UNIT 601243 CORRUGATED POLYETHYLENE FLARED END SECTION, 24" EACH 601244 CORRUGATED POLYETHYLENE FLARED END SECTION, 30" EACH 601245 CORRUGATED POLYETHYLENE FLARED END SECTION, 36" EACH 601250 STEEL REINFORCED POLYETHYLENE PIPE, 60” LF 601251 STEEL REINFORCED POLYETHYLENE PIPE, 66” LF 601252 STEEL REINFORCED POLYETHYLENE PIPE, 72” LF 601253 STEEL REINFORCED POLYETHYLENE PIPE, 84” LF 601254 STEEL REINFORCED POLYETHYLENE PIPE, 96” LF 601255 STEEL REINFORCED POLYETHYLENE PIPE, 120” LF 601270 CORRUGATED POLYPROPYLENE PIPE, TYPES, 12" LF 601271 CORRUGATED POLYPROPYLENE PIPE, TYPES, 15" LF 601272 CORRUGATED POLYPROPYLENE PIPE, TYPES, 18" LF 601274 CORRUGATED POLYPROPYLENE PIPE, TYPES, 24" LF 601275 CORRUGATED POLYPROPYLENE PIPE, TYPES, 30" LF 601276 CORRUGATED POLYPROPYLENE PIPE, TYPES, 36" LF 601277 CORRUGATED POLYPROPYLENE PIPE, TYPES, 42" LF 601278 CORRUGATED POLYPROPYLENE PIPE, TYPES, 48" LF 601279 CORRUGATED POLYPROPYLENE PIPE, TYPES, 60" LF 601280 PERSONNEL SAFETY GRATE FOR PIPE INLET EACH

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Source: Delaware Standard Specifications for Road and Bridge Construction, 2026 Edition. Pages 172–0 of 786. View official source ↗

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505 PCC PATCHING, PARTIAL DEPTH

602 DRAINAGE STRUCTURES

601PIPE CULVERTS

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