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Section 37 – Boring and Jacking

to six inches (6”) beyond the property line. For sewer services, the end of the pipe shall then be

capped or plugged and the pipe pushed into the bored hole. To determine final line and grade

for a service sewer, and to install the cleanout or the location post, the end of the bore at the

property line shall be exposed.

If the pipe material is vitrified clay, the pipe shall be plain end connected with compression-

type couplings. The bore shall be just large enough to pass the couplings and need not be

backfilled. Unless otherwise shown or specified in the Contract, the maximum length of bore

shall be fifteen feet (15’).

Boring shall not be used on service sewers when the required slope is such that probable

deviation of the bore from the intended line and grade would result in a final slope of less than

one-quarter inch per foot (1/4” per 1’).

37-8 WET BORING OF SMALL DIAMETER PIPELINES

When specified in the Special Provisions, pipelines that are six inches (6”) and smaller may

be installed by wet boring. Pipe shall be either ductile iron pipe conforming to Section 50-25,

“Ductile Iron Pipe (DIP), and Cast Iron Pipe and Ductile Iron Fittings”, of these Specifications or

polyvinyl chloride (PVC) pressure Class 200 pipe conforming to the requirements of AWWA

If the diameter of the boring hole is more than one-tenth of a foot (0.1’) greater than the

outside diameter of the pipe to be installed, the void shall be filled with sand or mortar, as

directed by the Agency.

37-9 MEASUREMENT AND PAYMENT

Boring and jacking will be measured by the unit for each location for the size and type of

pipe to be placed by boring and jacking as designated in the Contract.

The unit price paid for boring and jacking for each location for the size and type of pipe

includes full compensation for furnishing all labor, materials (including conductor pipe when

specified), tools, equipment, and incidentals, and for doing all the work involved in boring and

jacking pipe, complete in place, including the excavation and backfill, as shown or specified in

the Contract, as specified in these Specifications, and directed by the Agency.