New Jersey Administrative Code
Title 16 - TRANSPORTATION
Chapter 25 - UTILITY ACCOMMODATION
Subchapter 3 - HIGHWAY OCCUPANCY PERMITS
Section 16:25-3.6 - Uncased pipelines

1. Suitable bridging, concrete slabs or other appropriate measures shall be used to protect existing uncased pipelines which by reason of shallow bury or location make them vulnerable to damage from highway construction or maintenance operations. Such existing lines may remain in place without further protective measures if they are of adequate depth and do not conflict with the highway construction or maintenance operations, provided both the Department and utility officials are satisfied that the pipelines are, and will remain, structurally sound and operationally safe.

2. The carrier pipe shall conform to the material and design requirements of utility industry and governmental codes and specifications plus be designed to support the load of the highway plus the superimposed loads thereon when the pipe is operated under all ranges of pressure from maximum internal to zero pressure. Such installations should employ a higher factor of safety in the design, construction and testing of the uncased carrier pipe, including such features as thicker wall pipe, radiograph testing of welds, hydrostatic testing, coating and wrapping and cathodic protection.