In 2021, a major highway project in New Jersey ground to a halt when a retaining wall suddenly failed. The project was already four years behind schedule — and this collapse added even more delays.

Q. Can you tell me how to build a retaining wall? Are retaining wall blocks a good choice? What critical things do I need to know so that I don't have a collapse or other failure in the years to come?

Keystone Retaining Wall Systems updated two of its Keystone construction manuals and a new Keystone Design Manual & KeyWallPRO Operating Guide. The Keystone Construction Manual covers design, ...