American Society of Civil Engineers

Pipe Bursting Repair of the City of Tallahassee: Capital Circle 36-Inch Hobas Force Main

by B. W. LaMay, P.E., (Supervising Engineer, MWH; 490 Sawgrass Corporate Pkwy, Ste. 300, Sunrise, FL 33325. E-mail:, R. E. Hutchinson, P.E., (Principal Engineer, MWH; 230 Peachtree Street, Ste. 500, Atlanta, GA 30303. E-mail:, and V. H. Herrera, P.E., (Associate, Project Manager for City of Tallahassee; PBS&J; 2001 Northwest 107th Avenue, Miami, FL 33172. E-mail:
Section: Design, pp. 415-425, (doi:

     Access full text
     Purchase Subscription
     Permissions for Reuse  

Document type: Conference Proceeding Paper
Part of: Pipelines 2010: Climbing New Peaks to Infrastructure Reliability: Renew, Rehab, and Reinvest
Abstract: In August 2008, three breaks occurred in a two mile, 36-inch diameter section of the Capital Circle Force Main during and immediately after Tropical Storm Fay. This section of force main is constructed of Hobas pipe and lies beneath Capital Circle Roadway, a Florida Department of Transportation (FDOT) roadway that is one of the most heavily trafficked roadways within Tallahassee. Pipe bursting was selected as the trenchless repair method to expedite construction, minimize disruption to the existing roadway, and maximize the internal diameter of the repaired pipe. Since Hobas pipe had not previously been burst and to alleviate upheaval concerns from FDOT, a pilot was proposed to verify the viability of bursting Hobas pipe. A pilot length of 280 linear feet was successfully completed in 90 minutes at an average production rate of 3 feet per minute (fpm) with no upheaval. The lessons learned from the pilot were utilized to complete the design and construction of the pipe bursting repair of the remaining length of pipe.

ASCE Subject Headings:
Water distribution systems