Field Trip

Get inspired by participating in our off-site field trip and technical tour. Learn how others in the tunneling industry are improving methods, overcoming obstacles and reaching operational goals.

Brushy Creek Regional Utility Authority (BCRUA) Phase 2 Raw Water Delivery System

Wednesday, November 15, 2023 | $75

We are not able to transfer existing field trip registration to other people or other times. Please plan accordingly.

Trip 1 | 8:00 am – 11:00 am | 20 people

Trip 2 | 11:30 am- 2:30 pm | 20 people

(A meal will be provided for both trips)


The Brushy Creek Regional Utility Authority (BCRUA) was formed in 2006 to withdraw, treat, and deliver water to the cities of Cedar Park, Round Rock, and Leander, Texas. Phase 1 of the system consists of a 17 MGD floating pump station and a water treatment plant. The Phase 2 Raw Water Delivery System consists of a new deep water intake and conveyance system at Lake Travis. The Phase 2 system will have an ultimate capacity of 145 MGD and will provide a reliable long term water supply system for the continued growth of the three partner cities while reducing vulnerability to prolonged droughts.

The $215M project includes two lake taps; an 8,800 LF gravity intake tunnel; an underground suction chamber with 6 pump well shafts; a 35-ft diameter, 300-ft deep access shaft; a 2,600 LF transmission pipeline tunnel; a shaft for the transmission pipeline at the end of the transmission tunnel; a 145 MGD pump station; and a maintenance building. The tunnels are being excavated using an 11.5-ft diameter TBM. A roadheader is being used for the suction chamber and starter and tail tunnels for the TBM launch. The underground work is in limestone of the Glen Rose formation. Significant planning and staging are required due to the limited site area, marine work for the lake taps, and the need to TBM mine and walk back for two dead-end tunnels at the intake and transmission shafts.

The design was developed by a JV of Walker Partners and Freese and Nichols (WP/FNI), with Schnabel Engineering leading the shaft and tunnel design. Construction is being performed by a JV of Thalle and SAK Construction, with SAK performing the underground work. Construction management is being performed by the WP/FNI and Schnabel team.


  • 45 minutes travel to site
  • 30 minutes safety briefing and PPE check in office
  • 30 minutes project information briefing in office - ½ of group
  • 30 minutes underground visit – ½ of group
  • 45 minutes return to hotel

PPE Requirements:

Warm, Casual Clothes appropriate for construction site – long pants, shirts with sleeves, no loose or baggy clothes, steel toe boots are preferred.

SAK will provide hard hats, vests, eye protection, gloves and hearing protection.