138-kV Transmission Lines

138-kV Transmission Lines

Location: Austin, Texas

Client: Lower Colorado River Authority

Burns & McDonnell transmission engineers are designing several transmission lines for the Lower Colorado River Authority. Three are highlighted below.

Zorn to McCarty Lane

Burns & McDonnell designed a 9-mile 138-kV line requiring reconductoring of one circuit to 1033.5 Merrimack ACSS/TW. Burns & McDonnell provided structural analysis of the existing lattice towers and, where necessary, modified the structures to provide additional capacity and clearance improvements.

McNeil to Round Rock

Burns & McDonnell designed an 8-mile 138-kV line rebuild requiring new monopole construction for bundled, 795 kcmil Drake. Burns & McDonnell designed the line with both steel and concrete poles.

Macedonia to Hockley

Burns & McDonnell designed a new 13.5-mile 138-kV line. The line consists of 3 miles of double circuit line along an existing San Bernard Electric Cooperative right-of-way, 6 miles of single circuit paralleling a CenterPoint Energy 345-kV line, and 4.5 miles of low-impact single circuit construction meandering through farmland and tying in to a CenterPoint Energy 138-kV line. All construction utilizes both steel and concrete monopoles.