DWS-939 (RFB #489123) - Sewer Condition Assessment Services in 5 Detroit Neighborhoods

DWS-939 has an expected duration of 365 calendar days and includes the following Work:

•    The cleaning of, and removal of foreign material from, approximately 265,899 LF of sewers in order to be able to conduct a NASSCO compliant inspection.
•    The NASSCO-compliant inspection of approximately 367,281 LF of sewers using internal video and multi-sensor equipment for the purposes of recording structural and service defects.
•    SONAR inspection of approximately 1,106 LF of siphons.
•    The inspection of approximately 1,118 manholes using side scanning imagery and point cloud collection equipment to NASSCO Manhole Assessment Certification Program (MACP) Level 2 inspections for the purposes of recording structural and service defects.
•    The as-needed removal and replacement of existing privately-owned facilities (e.g., fences, gates, landscaping, and paved areas) that prevent access to City of Detroit assets (i.e., manholes).
•    The cleaning and inspection of 1,669 catch basins, and the removal and vacuuming of dirt/debris and sludge. Catch basins in MDOT ROW (e.g. I-75, M-10, M-12 etc.) are not to be inspected however any catch basins in DWSD's jurisdiction not mapped but discovered in the field, adjacent to the pipes identified for inspection, are to be inspected.
•    The dye testing of approximately 146 sinkholes.
•    The GPS surveying of approximately 1,118 manholes, 1,669 catch basins, 1,740 water valves and 721 hydrants.
•    The raising to grade of approximately 109 manholes, as needed.
•    Any work adjacent to any Wayne County and MDOT road jurisdictions shall be in accordance with the requirements of the Wayne County and MDOT Authorities respectively.