Bending the River: Monitoring During Trenchless Tunneling


Bending the River is an infrastructural artwork that utilizes Los Angeles’s first water commons and demonstrates how the currency of water can create social capital and serve social needs. A percentage of water will be redirected through a diversion vitrified clay pipe running under the railway tracks to Metabolic Studio where the water will be lifted into a treatment wetland comprised of native plants. The regenerated water will then be distributed to a network of public parks.



Monitoring Program

Sixense Northern America was hired to carry out the displacement monitoring program that controls the potential impact of the trenchless operations on the ground, in adjacent structures, and Metrolink’s rail tracks.

Two solar-powered Automatic Total Stations (ATS) were installed to continuously monitor arrays of reflectors (prisms) installed along the alignment of the 1 m diameter and 49-meter-long tunnel. The monitoring data was delivered in near-real-time through our web platform Beyond Monitoring, including automatic alerts triggered if any of the threshold values were exceeded.



Bending the River: Project Takeaways

We are incredibly thankful for the opportunity to be a part of such a significant project, which has been in the making for over a decade.

The Bending the River project is unique and has been designed to enrich the lives of the local and native communities in ways that will have a lasting impact.

Thank you, Pacific Hydrotech Corporation, for your trust & support! Congratulations to Lauren Bon, METABOLIC STUDIO, and Geosyntec Consultants.

The completion of this project is a testament to the hard work, dedication, and perseverance of everyone involved. We look forward to seeing the positive effects it will have on the community for years to come.


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