Natural Gas - Ligon & Ligon, Inc.

Installation of a natural gas pipeline extending around a new casino site covering three city blocks in downtown Baltimore
1,400 LF of 24” coated steel pipe with welded and wrapped joints
Deep, open-cut trenches in city streets
Managed contaminated ground water conditions
Excavation around and support of numerous existing city trunk utilities with hand tunneling underneath large storm drain box culverts
Managed City permitting and development of a complex traffic control plan for major thoroughfare
Phased construction coordinating with two nearby professional sports stadiums and adjacent casino construction activities

Severn River Bridge Gas Crossing

2,900′ of 8″ welded steel high pressure gas main pipeline with 9 expansion loops
Fabrication, installation and painting of 172 structural steel diaphragm supports, drilled and bolted into existing bridge girders
Innovative scaffolding system provided safe access to all work points and zero impact to bridge traffic
100% x-ray and field coating of pipe joints and 450 psi hydrostatic pipe testing
6,000’ of 8” HDPE high pressure gas main pipeline on both sides of bridge with service renewals to 28 residents
Featured in the publication, BGE Now: https://www.bgenow.com/2021/03/11/severn-river-bridge-gas-main-project-is-something-incredible-being-built/