The U.S. Court of Appeals for the Second Circuit ruled that a sonar test engineer comes under the coverage of the Longshore and Harbor Workers’ Compensation Act (LHWCA). In the instant case, the engineer spent about 40% of his time conducting tests on sonar transducers onboard a barge permanently moored in Cayuga Lake in upstate New York. Cayuga Lake is connected by locks to the Erie Canal, which is connected by locks to both the Hudson River and Lake Erie. Even though Cayuga Lake does not currently support interstate commerce, the court held that, since it is physically capable of such support, the lake is navigable for purposes of the LHWCA.