Petroleum products pipelines are those carrying crude or refined liquid petroleum products including, but not limited to, gasoline, distillates, Propane, Butane, or coal-slurry. Petroleum products pipelines are, with few exceptions, transmission lines delivering products to processing or distribution facilities. Petroleum products pipelines installed within County highway rights of way shall conform to the applicable sections of ANSI Standard Code for Pressure Piping. (Liquid Petroleum Transportation Piping System ANSI‑B 31.4).
Applications for pipeline permits shall state the type or types of transmitant, pipe size, maximum working pressure and the design standard to be followed.
(A) Parallel Petroleum Products Pipelines. Parallel petroleum products pipelines may be permitted on County highways under the following conditions:
The installation shall be located as near as practicable to the right of way line and not more than eight (8) feet (2.4m) from and parallel to the right of way line.
The materials, construction methods and other elements are in conformance with the provisions of Article I of this Chapter.
Pipelines shall have minimum cover of thirty (30) inches (0.8m).
(B) Petroleum Products Pipeline Crossings. Petroleum products pipelines crossings may be permitted to cross highways under the following conditions:
The materials, construction methods and other elements are in conformance with Article I of this Chapter.
The installation shall cross at or as near as practicable to a ninety (90) degree angle with the highway centerline.
Crossings shall be installed by jacking or boring under completed highway projects with vented encasement provided between ditch lines or toes of slopes of the highway. The crossing may be installed using tunneling with vented encasement but only when the installation is not possible by other means. The venting of the encasement shall be within one (1) foot of the right of way line.
Encasement may be eliminated under the following conditions:
Extra heavy pipe is used with the understanding that such omission shall preclude future maintenance or repair.
Cathodic protection of the pipe is provided.
Crossing pipe shall have minimum cover of thirty (30) inches (0.8m).
Crossing shall be marked at the right of way lines with markers that identify the owner-operator and give emergency telephone numbers.