Curbs along Second Avenue and Main Street less than two years old already are showing signs of wear, including numerous gouges possibly caused by snow-moving equipment.

The severity of the problem this week seemed to hinge on who was asked.

Chuck Correa, a regional preconstruction engineer for the state Department of Transportation, viewed photos of some of the damage this week. Correa said the state uses “air-entrained concrete,” a chemical additive that adds bubbles to…