City of Columbus Bliss Run Storm Relief Sewer Phase I

H.R. Gray provided critical path method (CPM) scheduling and construction management for the City of Columbus on the 8-foot by 12-foot concrete box storm water sewer.

This phase of the project included the installation of 3,000 feet of a 12-foot wide by 8-foot tall precast concrete storm sewer. The work area was restricted within existing street right-of-ways in a residential area of the city and presented unique challenges. A portion of the project was constructed in a roadway dead-ending at a waterway with no alternate ingress or egress, which created a major challenge of maintaining vehicle access for homeowners during construction. The H.R. Gray project management team recommended the use of golf carts as a mode of transportation for the residents from the construction area to a remote parking location. Communication systems were developed and maintained to inform residents of scheduled construction in their area. This point of contact was provided 24-hours a day, 7 days a week to immediately address project issues.

The H.R. Gray team also coordinated a mandatory three day roadway closure while installing the culvert across a major arterial roadway. Crews worked around the clock and used fast-setting controlled density fill to backfill the excavation area to minimize the traffic impact on the community.

By carefully managing the project activities, the installation of the storm water sewer was completed 12 months ahead of schedule and final project activities including paving and site restoration were completed seven months ahead of schedule and under budget.

 

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