TROY – The city has hired an engineering firm to redesign the retaining wall that partially collapsed Sunday and was removed Monday behind the Stewart's Shop at Hoosick and 10th streets, city and company officials said.

No one was injured during the collapse.

Councilman Mark McGrath, who was at the store Sunday morning, said the city would have been in a better position to deal with the issue if it had a city engineer with the professional credentials to determine if the wall was properly designed and installed.

"By their decision not to have a city engineer, the residents of Troy are placed in a potential disaster," McGrath said.

The city doesn't have a city engineer on staff and relies on private engineers when services are needed.

City Council President Carmella Mantello has called for the council's General Services Committee to meet to review what occurred when the retaining wall collapsed. Mantello also wants the committee to study the city's engineering services.

The retaining wall of large concrete blocks, which was designed to hold back a slope, had only been partially constructed when it gave way, a Stewart’s spokeswoman and a city spokesman confirmed.

CHA Consulting Inc. will perform the new design work, said John Salka, a spokesman for Mayor Patrick Madden. Stewart’s will pay for the engineering work performed by CHA as it moves to rebuild the retaining wall, said Erica Komoroske, a Stewart’s spokeswoman.

Komoroske said a study is being conducted to determine what caused the collapse.

Stewart’s engineers had performed the original design work. City code officers were approving the project as it progressed. The new Stewart’s is larger than its predecessor.