The Austonian Slab Edge Repairs

May 8

CPM served as the Owner’s Project Manager for the Austonian Slab Edge Repair Project, a critical structural remediation effort at one of Austin’s most iconic residential towers. The Austonian, a 59-story high-rise located at 200 Congress Avenue, experienced significant deterioration at its exposed slab edges, necessitating comprehensive repairs to ensure the building's safety and longevity.

The scope of work included:

Removal of approximately 10,000 linear feet of deteriorated slab edges to expose the post-tensioning system.
Installation of galvanic anodes and replacement of corroded rebar with glass fiber-reinforced polymer (GFRP) reinforcement.
Application of a waterproofing membrane to all repaired areas, including balconies and soffits.
Implementation of swing-stage access systems and sidewalk bridging to safely conduct repairs in an occupied building within a busy urban environment.

CPM collaborated closely with the ownership group, Pivot Engineers (Engineer of Record), and STRUCTURAL (specialty contractor) to manage the project from investigation through completion. The Austonian Slab Edge Repair Project exemplifies CPM’s expertise in overseeing complex structural repairs in high-rise, occupied buildings, ensuring minimal disruption to residents while restoring the building's structural integrity.