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Hill Avenue Interceptor Viaduct, October 17, 1938. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Interceptor Viaduct SE, October 17, 1938. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Interceptor Viaduct, June 21, 1938. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Interceptor Viaduct, 24" VCP, June 21, 1938. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Interceptor Viaduct at Hill Laurel, June 21, 1938. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Interceptor Viaduct construction, June 21, 1938. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Interceptor Viaduct, June 21, 1938. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Interceptor Viaduct, August 14, 1938. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Interceptor Viaduct, August 4, 1938. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Interceptor Viaduct 15 RCP location, August 4, 1938. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Interceptor Viaduct NW, August 4, 1938. Superior, Wisconsin. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Interceptor Viaduct SW, June 9, 1998. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue north along sanitary sewer viaduct, November 28, 1998. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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Hill Avenue Sanitary Sewer Viaduct, November 28, 1998. Sanitary sewer built into viaduct's mortared rock structure. Superior, Wisconsin.
Source: Dan Romans, Superior Public Works Department, Superior, Wisconsin.
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