SOLUTION

1970: Structural investigation and load testing of original stands

1976–80: Development and design of strengthening system for original seating bowl that allowed use for twenty plus years

1990–date: Design and implementation of major shotcrete repair programs for overhead concrete, roughly every five years

2001–02: Investigation of methods to slow deterioration of overhead concrete in colonnades and concourses; cathodic protection design and field trials of various corrosion mitigation systems; life-cycle cost analysis

2003–04: Consulting to new stadium design team on rehabilitation of historic coffered ceilings of colonnades

2004–date: Load ratings of existing structure for changes in use, new equipment, unusual stages or vehicle loads, signage, etc.

2004–date: Evaluations and repair initiatives undertaken as needed, including facade concrete repairs, expansion joint repair/replacement, horseshoe promenade slab repairs, parking garage inspections and repairs, and davit testing

2008–10: Investigation and repair design for split-out failures of double-tee beam stems in north parking garage

2006–date: Annual close-up inspections of overhead concrete in public areas of colonnades and concourses

2017–date: Annual close-up inspections and repairs for historic cast stone facade; cast stone repairs in phased approach

Annually: Annual structural inspections of stadium since 1970 and structural repair designs for conditions identified