1. Commission Agenda Item # 17
Authorization to Execute an Agreement with Construction Resource Management, Inc. for the Reconstruction and Abandonment of Combined Sewer Overflow 150
Commission Agenda Item # 17

2. Background
District owns combined sewer outfalls (CSO’s) to relieve system during wet weather
CSO’s connected to system via diversion structures
CSO 150 is 36” corrugated metal pipe at 301 E. Washington St.
Located in easements and outside of easements on CRM property
CSO 150 drains into a channel of the KK River
Spring 2018 a sinkhole was reported

3. Background (continued)
Power pole is leaning near the hole
Pipe has hole; pavement is washing into river
Wharf wall is damaged
CSO 150 is no longer hydraulically necessary
CRM’s onsite drainage flows through CSO 150

5. This photo is looking north from the CRM parking lot, you can see the extent of the leaning pole. The sinkhole is adjacent to the concrete barriers, partially covered by the materials laying on the asphalt pavement.

6. This is looking northwest from across the channel
This is looking northwest from across the channel. The CSO opening is partially evident in the wharfwall. The sinkhole is approximately 15’ to the west of the wall.

7. Project Scope Reconstruct CSO 150 for onsite drainage
Abandon portions of the CSO pipe not needed for onsite drainage
Restore the wharf wall
Restore the pavement and sinkhole

8. Agreement Agreement between CRM and District
Negotiated terms for design, construction, operation, maintenance of system
Transfer of easements
Documents reviewed by District legal staff

9. Agreement District will: Reimburse design and construction costs
CRM will:
Oversee design, construction
Obtain permits and coordinate with Milwaukee
Operate and maintain the system

10. Project Cost/Schedule
Request for $250,000
Not to exceed cost
Agreement to end in 2020
Project complete in 6 months

11. QUESTIONS?