No Silver Bullet: TRA’s Bear Creek Large-diameter Rehabilitation

TUESDAY, JAN. 31

TRACK I-B = SEWER CONSTRUCTION & REHABILITATION

10:30-10:55 a.m.

No Silver Bullet: TRA’s Bear Creek Large-diameter Rehabilitation

Speakers: Kelly Davis, Project Manager, Trinity River Authority of Texas; and Justin Reeves, Project Manager, and Paul Banschbach, Project Engineer, Lockwood, Andrews & Newnam Inc.

 

There is no silver bullet in the world of pipeline rehabilitation, and a recent assessment of the Bear Creek interceptor system for the Trinity River Authority (TRA) highlights this perfectly. The characteristics of a 5,000 LF stretch of parallel 54” and 84” interceptors in TRA’s Bear Creek system required evaluating a variety of rehabilitation technologies. Strategies included sliplining, cured in place lining and interceptor replacement, with no single option proving to be a clear winner. Combinations of technologies were evaluated with consideration of property requirements, cost, constructability, and risk in an effort to determine the optimal renewal path. This presentation serves as an example of the fact that determining the best rehabilitation technique requires a diverse toolbox.