Tunnels – Page 17 – Southland Holdings

Govalle 2 – Harpers Branch Area Wastewater Line Improvements

Govalle 2 – Harpers Branch Area Wastewater Line Improvements https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png 1000 750 Southland Holdings Southland Holdings https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png September 23, 2025 September 23, 2025

Completed in 2009 by Southland Contracting, the Govalle 2 – Harpers Branch Area Wastewater Line Improvements Project consisted of the excavation of approximately 2,050 linear feet of 52-inch tunnel by…

US ESB Chilled Water Distribution

US ESB Chilled Water Distribution https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png 1000 750 Southland Holdings Southland Holdings https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png September 23, 2025 September 23, 2025

Completed in 2009 by Southland Contracting, the US ESB Chilled Water Distribution Project consisted of the excavation of approximately 2,400 linear feet of 52-inch tunnel by Tunnel Boring Machine (TBM)…

Zachary Scott Wastewater Tunnel

Zachary Scott Wastewater Tunnel https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png 1000 750 Southland Holdings Southland Holdings https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png September 23, 2025 September 23, 2025

Completed in 2009 by Southland Contracting, the Zachary Scott Wastewater Tunnel Project consisted of the excavation of approximately 3,666 linear feet of 52-inch tunnel by Tunnel Boring Machine (TBM) for…

Kansas River Tunnel

Kansas River Tunnel https://www.southlandholdings.com/wp-content/uploads/2025/09/Kansas-River-Tunnel_001.jpg 1000 750 Southland Holdings Southland Holdings https://www.southlandholdings.com/wp-content/uploads/2025/09/Kansas-River-Tunnel_001.jpg September 23, 2025 September 23, 2025

Completed in 2009 by Southland Contracting, the Kansas River Tunnel Project consisted of the excavation of approximately 1,440 linear feet of 88-inch diameter tunnel using a Tunnel Boring Machine (TBM)…

Contract Section 1 – Gravity Sewers & Tunnels

Contract Section 1 – Gravity Sewers & Tunnels https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png 1000 750 Southland Holdings Southland Holdings https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png September 23, 2025 September 23, 2025

Completed in 2010 by Southland Contracting, the Contract Section 1 – Gravity Sewers & Tunnels Project consisted of the excavation of approximately 600 linear feet of 36-inch, 810 linear feet…

Reuse Pipeline and Diffuser to Lake Lanier, Contract 3

Reuse Pipeline and Diffuser to Lake Lanier, Contract 3 https://www.southlandholdings.com/wp-content/uploads/2025/09/Lake-Lanier-Pipeline_001.jpg 1000 750 Southland Holdings Southland Holdings https://www.southlandholdings.com/wp-content/uploads/2025/09/Lake-Lanier-Pipeline_001.jpg September 23, 2025 September 23, 2025

Completed in 2009 by Southland Contracting, the Reuse Pipeline and Diffuser to Lake Lanier, Contract 3 Project consisted of the excavation of approximately 57-foot diameter shaft, approximately 43 vertical feet…

East Side Interceptor Replacement Project – Phase II

East Side Interceptor Replacement Project – Phase II https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png 1000 750 Southland Holdings Southland Holdings https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png September 23, 2025 September 23, 2025

Completed in 2012 by Southland Contracting, the East Side Interceptor Replacement Project – Phase II Project consisted of the trenchless installation of approximately 2,160 linear feet of new 54-inch interceptor…

Perris Valley Pipeline South Reach

Perris Valley Pipeline South Reach https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png 1000 750 Southland Holdings Southland Holdings https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png September 23, 2025 September 23, 2025

Completed in 2010 by Southland Contracting, the Perris Valley Pipeline South Reach Project consisted of the excavation of approximately 1,935 linear feet of 116-inch tunnel with steel casing as primary…

Briar Creek Relief Sewer Tunnel Phase 1

Briar Creek Relief Sewer Tunnel Phase 1 https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png 1000 750 Southland Holdings Southland Holdings https://www.southlandholdings.com/wp-content/uploads/Southland_Holdings_Stacked.png September 23, 2025 September 23, 2025

Completed in 2010 by Southland Contracting, the Briar Creek Relief Sewer Phase 1 Tunnel Project consisted of the excavation of approximately 2,423 linear feet of 88-inch rock tunnel using a…

Blue River No. 26 – Contract 1 Sanitary Sewer Interceptor Tunnel

Blue River No. 26 – Contract 1 Sanitary Sewer Interceptor Tunnel https://www.southlandholdings.com/wp-content/uploads/2025/09/Blue-River-26_001.png 1000 750 Southland Holdings Southland Holdings https://www.southlandholdings.com/wp-content/uploads/2025/09/Blue-River-26_001.png September 23, 2025 September 23, 2025

Completed in 2010 by Southland Contracting, the Blue River No. 26 – Contract 1 Sanitary Sewer Interceptor Tunnel Project consisted of the excavation of approximately 3,332 linear feet of 96-inch…