TP-371 Pipeline

Indiana/Armstrong, Pennsylvania

TP-371 Pipeline

Indiana/Armstrong, Pennsylvania

Project was to replace existing 12” pipeline in existing right-of-way (ROW) with new 20” line. Most of the existing ROW was 30 ft. This project required the ROW to be widened to 60 ft. The existing pipeline was more than 60 years old. The ROW was paralleled by other pipelines owned either by client or third parties.

This project crossed 55 wetlands, most of which are PEM with a few that were PSS or PFO, 72 streams and 27 roads, 14 of which were PennDOT roads. Project involved one major creek crossing at Crooked Creek which required an open cut method using coffer dams. There was a total of 99 other gas lines crossing the alignment. Adding to the complexity of the line were the various HDDs lengths 1300 LF, 2270 LF, 1960 LF, 1950 LF, 2600 LF & 2300 LF along with conventional bore pits of 25 ft deep or more.

This project involved a Norfolk Southern Railroad crossing required to be directionally drilled due to the proximity of a major Class 3 wetlands.

This project required a Joint Permit due to one wetland being 13.9-acres and an SLLA for Crooked Creek. Additionally, the project had T&E Species restriction for Indiana Bat.