As part of this gas pipeline replacement project, Urban successfully assisted National Fuel Gas in acquiring a critical natural gas pipeline stream crossing permit. The pipeline crossed Kinzua Creek, which lies within the Allegheny National Forest. The permit application was prepared in accordance with PADEP Chapter 105 and USACE Section 404 regulations. A general permit for temporary road crossings of streams and wetlands was also prepared for equipment travel along proposed access roads.
The project consisted of replacing the exposed portion of the eight-inch steel pipeline with six-inch polyvinyl chloride (PVC), which was installed under the creek using directional drilling. The length of the directional drilling was 300 feet; the new pipeline was installed approximately 10-15 feet below the Kinzua Creek streambed. The project also included removing the exposed steel pipeline, eliminating the impediment to ice, wood debris, and small craft navigation.
The application included completing required forms, Act 14 notification, a project narrative, and environmental studies. Impacts assessed by Urban and documented in the permit application included flooding, water quality, stream bank erosion, and ecology. A soil erosion and sediment pollution control plan for the area of disturbance (less than one acre) was also prepared and submitted with the application.
The application was deemed complete by PADEP; no additional information was requested by the agency, so the permit review and processing could begin quickly after submission. The permit was issued by PADEP/USACE promptly, allowing pipeline construction to proceed on schedule.