Sun Prairie Light Commission, 125 W Main St, Sun Prairie, WI 53590, US

Founded in 1976, Capitol Underground Inc. is a public works contractor based in Middleton, Wis. The company specializes in water and sewer installations for residential subdivisions, commercial business parks, sewage district interceptor sewers and municipal public works reconstruction projects. Capitol Underground Inc. undertakes subdivision construction, street reconstruction, sewer/water main, interceptors as well as force main projects. The firm caters to the needs of customers in the Greater Madison region. Capitol Underground Inc. has constructed a variety of public works projects for several municipalities in the Dane and neighboring counties.

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