The Norwich Local Protection Project is located at the lower end of the Shetucket River in Norwich.The project reduces flooding on the two-mile reach extending from the head of the Thames River upstream to the Greenville Dam.
The initial portion of the channel improvement project began in June 1947 and was completed in March 1949. In September 1957, work began on extending the project, which was completed in December 1958. The total cost of the Norwich Local Protection Project was $1.3 million. The channel is maintained by Norwich.
A 700-foot reach of the Shetucket River channel was deepened and widened, increasing its cross-sectional area by 40 percent. The work was centered at the Laurel Hill Bridge (Route 12), where the channel passes through a narrow rock constriction.