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1.1 This specification covers the manufacturing requirements for precast reinforced concrete monolithic box sections that are intended to be installed using jacking techniques. The typical use of this type of product is for the construction of culverts and for the conveyance of storm water, industrial wastes and sewage.

1.2 The requirements of this specification are intended to supplement the existing manufacturing standards for precast reinforced concrete box sections and provide the additional manufacturing details required for box sections that will be installed using jacking techniques. The parent manufacturing standard for the precast reinforced concrete box sections is denoted as the “designated precast reinforced concrete box section manufacturing standard” throughout this document. The requirements included within shall supplement and supersede the designated precast reinforced concrete box section manufacturing standard when the box sections are to be used for jacking.

1.3 Units—The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.