How to reach: To reach the tidal bench marks from the intersection of Clinton Street and State Highway 9 in Delaware City, proceed 3.5 km (2.2 mi) south on Highway 9 over the Reedy Point bridge to South Reedy Point Road, turn right and continue 1.3 km (0.8 mi) to a gravel road that parallels the Chesapeake and Delaware Canal, then turn right and proceed 0.8 km (0.5 mi) to the Corps of Engineers T-pier. The bench marks are along South Reedy Point Road, the gravel road, and State Highway 9. The tide gauge and staff are on the pier, east of the bridge and on the south side of the canal.