Document Type



Virginia Institute of Marine Science

Publication Date



In 1972 studies were conducted to determine the environmental impact of a third crossing of Hampton Roads, a bridge-tunnel connection designated as part of Interstate Highway 664. At the same time, construction had begun for a second bridge and tunnel to parallel the existing Hampton Roads Bridge-Tunnel which was to be incorporated into the Interstate system as I-64. Because this project was only in the initial stages, it was recommended that an evaluation of I-64 be made in order to make recommendations for the design of and construction methods for the I-664 bridge-tunnel. This study deals with the water quality impact of I-64 construction activities and modifications to the circulation due to tunnel islands. The proposed alignment of I-664 and the existing I-64 corridor are shown in Figure 1.


Water quality -- Virginia -- Hampton Roads (Harbor)