Telegraph Franklin Sewer Replacement Project Using HDD Technology


Telegraph-Franklin Sewer Replacement Project Using HDD Technology

Authors:

Abdulnasser Almadhoun, P.E., NTH Consultants Ltd., Northville, Michigan
Hosam Yaldo, P.E., NTH Consultants Ltd., Northville, Michigan
Sid Lockhart, P.E., Oakland County Water Resources Commissioner, Waterford, Michigan
Joel Brown, P.E., Oakland County Water Resources Commissioner, Waterford, Michigan
Dan DiLegge, President, DVM Utilities Inc., Sterling Heights, Michigan

Abstract: In Southfield, Michigan, near the intersection of Franklin Rd. and US Highway 24, a 12-inch diameter watermain break revealed a sinkhole approximately 60-foot long by 50-foot wide by 25-foot deep under Franklin Rd. Further investigations indicated a portion of an existing 48-inch diameter sanitary sewer located below the watermain was collapsed and utilities including gas mains, storm sewers, and communication lines were all impacted. More than 3,500-feet of bypass sewer system was immediately installed to prevent sanitary sewer overflow and the site was stabilized to prevent further damage to existing utilities. Several rehabilitation alternatives were considered including relining of the collapsed sewer between manholes and other rehabilitation methods. Based on hydraulic capacity requirements and other field challenges including groundwater and soil conditions a 350-feet long 24-inch I.D./30-inch O.D. diameter HDPE pipe installed using Horizontal Directional Drilling (HDD) was selected as the most feasible alternative to replace the existing sewer under the Highway. Prior to start of HDD, extensive geotechnical and utility investigations were performed. A geotechnical instrumentation program was installed to monitor movement of utilities and pavement during construction. Because of proximity to numerous utilities along alignment and HDD grade fixed at a constant slope, the HDD pilot hole was drilled from downstream to upstream using pilot tube guided boring machine with LED/theodolite guiding system. The reaming operation was performed using various size reamers followed by pulling the 30-inch HDPE pipe with a 32-inch barrel reamer from a trench located few feet from an existing bridge abutment at the downstream end.

Publication Date: 2018

Presented at:
NASTT’s 2018 No-Dig Show Palm Springs, California
March 25-29, 2018 | Paper Number: MM-T2-01


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