Baltimore City Emergency Sinkhole Repairs
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PROJECT details
Client: City of Baltimore DPW
Location: Centre Street, Mulberry Street, and Cathedral Street, Baltimore, MD
Capabilities: Rehabilitation, Replacement, Emergency Services
Services: CIPP, Bypass Pumping
Contract Value: $8,500,000
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The Challenge: Spiniello Companies responded to a major sinkhole that formed on the City of Baltimore’s High-Level Interceptor in the historic Mount Vernon neighborhood. As repairs were underway, two additional sinkholes appeared within a mile of the original location. Spiniello was tasked with the repair of all three locations along with the approximately one mile of the 110-year-old pipe, comprised of concrete and brick with an 80-inch diameter.
Spiniello’s Quick Response: Following installation of an extensive bypass system, access to each pipe collapse was achieved by liner plate shaft excavations. Each shaft was 35- to 50-feet in depth and up to 24-feet in diameter. The 80-inch pipes were then cleaned with specialty equipment, resulting in over 3,000-tons of material being removed from the pipeline prior to lining. Due to the discovery of high lead levels, hazardous material disposal guidelines were followed. The 80-inch pipe was then lined with cured-in-place pipe (CIPP) in segments over 2,000-feet long to limit costly excavations and further disruption to traffic and local businesses. In less than a year, the three sinkholes were repaired, flow was restored to the newly lined sewer main, and the City streets were reopened to traffic. Spiniello's expertise and ability to perform emergency work in-house assured timely and economical completion to this critical project.
