Capital Project Tracking and Reporting SystemCity of St. Joseph, Missouri
Blacksnake Creek StormWater Separation Project

Project Information

Blacksnake Creek StormWater Separation Project

Project Manager: David Frazier

Assistant Project Manager: Lee Sommers

Current Project Status: Construction

Project Scope:
    The Blacksnake Combined Sewer Rehabilitation Crack Repair package generally consists of repair of concrete and brick cracks in the Blacksnake Combined Sewer pipeline, removal of encrustation and deposits at select lateral connection locations, surface repair of plugged lateral connections and repair of existing missing brick locations. The Blacksnake Creek Stormwater Separation Project Tunnel Package generally consists of the construction of 90-inch diameter concrete precast segment lined 6,648-foot long tunnel, 37-foot diameter baffle drop shaft, 48 feet of near surface reinforced concrete box culvert, 2-foot diameter vent shaft, l8l feet of 90-inch diameter open cut steel pipe installation, l25 feet of 90-inch jacked steel pipe, an energy dissipation structure and site restoration. The Blacksnake Creek Stormwater Separation Improvement Conveyance Package generally consists of the construction of a 7-feet by 6-feet below-grade precast box culvert 5,729 feet in length with four junction structures and an inlet structure, construction of an inlet structure to the existing Blacksnake Combined Sewer System, rehabilitation of a screening structure and slide gate within the existing Blacksnake Combined Sewer System, improvements to approximately 900 linear feet of the existing Roy’s Branch channel near the Missouri River and site restoration.  

Project Funding:
   2015 A IDA Bonds
   2016 SRF Funding
   2017 SRF Funding
   Over-payment from Property Closings
   Recovery Reimbursement

Project Funding Amount: $87,000,000.00

   Blacksnake Combined Sewer Rehabilitation Crack Repair: Projected closed out. Blacksnake Creek Stormwater Separation Improvement Project Tunnel Package: The TBM cutter head as of Saturday 3/16/2019 is 20,222.41 feet in from the entry shaft at MacArthur Drive will at total of 496 rings reaching a length of 1984 feet completed. This week the maintenance operations were planned to work on the telemetry and cutting head. Due to the Missouri River reaching major flood stage Super Excavators started installing an additional bulkhead in the outfall structure discharge tunnel that was open to the full river elevation. Enerfab has placed the slab in the drop shaft and they are tying rebar for the walls and setting forms. Blacksnake Creek Stormwater Separation Improvement Project Conveyance Package: Rodriguez has finished the rip-rap at the Roy’s Branch and at the Inlet at the conveyance. As of 3/22 the existing inlet on the Blacksnake has been cleared and grubbed. The entrance slab has been placed and WIC is currently working on the walls of the existing inlet structure. CSO Sluice Gate Repairs Kissick has installed an 18-in, 12-in and 6-in pump in addition to keep up with the water level from localized rain events and groundwater infiltration. Kissick on March 11 requested to pull out of the area. due to the rising river elevation and wait until mid-June. Prior to the evacuation of the site Kissick reached subgrade elevation which exposed unsuitable soil conditions. BV developed a subgrade modification plan. Kissick was able to install aggregated reinforced with geogrid and capped with concrete from the existing slab at the gates to the bottom of the stilling basin of approximately 32.5-ft. before the river topped the sheet pile wall at the end of the Blacksnake Creek. Currently Kissick has evacuated the site. 

Last Update: Friday March 29, 2019