Description: The City of Bay City maintains an extensive catalog of archived documents related to the sewer network, with records spanning approximately 150 years, dating back to the 1880s; this layer provides users with access to these historical documents as attachments corresponding to various segments of the sewer network, organized both geographically and temporally, serving as a one-stop shop for any documents pertaining to the sewer system, thereby enhancing the usability and historical understanding of Bay City's sewer network.