Seepage Stoppers

by V. J. Hebert, P.E., Regional Manager; Dillon Consulting, Windsor, Ontario, Canada,
Juan Lelito, P.E., Senior Project Engineer; Detroit & Canada Tunnel Corp., Detroit MI,
A. Naudts, CEO; ECO Grouting Specialists Ltd., Cheltenham, Ontario, Canada,

Serial Information: Civil Engineering—ASCE, 1996, Vol. 66, Issue 10, Pg. 68-70

Document Type: Feature article


After 65 years of continuous operation without any major rehabilitation, the Detroit-Windsor tunnel had sprung a few leaks. Engineers used elasticized grout to stop the seepage, a material flexible enough to withstand the viscissitudes of freeze-thaw cycles. Declared a National Historic Civil Engineering Landmark by ASCE in 1982, the Detroit-Windsor vehicular tunnel has served the needs of the motoring public since 1930. Over time, portions of the tunnel have deteriorated. The existing roadway suffered from high chloride contents, delamination and spalling of the concrete deck as well as rough spots on the asphalt surface. Leakage and infiltration problems through the tunnel (which is owned jointly by the city of Detroit and the city of Windsor) have led to deterioration of the concrete shell, freeze-thaw damage and, finally, a multi-year, $15 million Rehabilitation project started in 1993.

Subject Headings: Seepage

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