This project monitored and analyzed a Mn/DOT Precast Composite Slab Span System (PCSSS) on a bridge in Center City, MN. The results showed that cracking had initiated in the bridge at the locations of some of the transverse gages in the cast-in-place portion just above the longitudinal flange joint at the midspan and at some of the longitudinal gages near the support. The researchers determined that the cracking was due to restrained shrinkage and environmental effects, rather than vehicular load. A two-span laboratory specimen was also constructed and tested, and the researchers analyzed data from both the field and laboratory before making recommendations.
