Client City of Fort Worth

Sycamore Creek Sanitary Sewer Interceptor

Fort Worth, TX

The City of Fort Worth selected Lockwood, Andrews & Newnam, Inc. (LAN) to provide rehabilitation design and route analysis for their Sycamore Creek Sanitary Sewer Interceptor. The project is part of the City’s Interceptor Condition Assessment Program (ICAP), where all of the City’s sewer interceptors have been assessed for condition and remaining life to prioritize rehabilitation needs.

LAN was selected to evaluate rehabilitation alternatives for 10 separate segments of the Sycamore Creek Interceptor. The design consists of both open cut replacement and cured-in-place rehabilitation for roughly 6,000 LF of 24- to 54-inch unlined concrete pipe within the greater 25,000+ LF system. Design challenges included extensive coordination for bypass piping and construction access through several City parks (Sycamore and Cobb Park), the Sycamore Creek Golf Course, railroad crossings, TxDOT roadway crossings, and an abandoned landfill.

While developing the rehabilitation design, efforts also included route analysis for a future 72-inch diameter relief interceptor totaling more than 20,000 LF. Four separate routes were evaluated to consider constructability, maintainability, stakeholder impacts, and cost. Design/Construction phasing and potential interaction with rehabilitation requirements were considered through evaluations in determining the optimal alignment for future development.

At a glance

Ten separate and distinct interceptor segments identified as critical and in need of rehabilitation

Rehabilitation design for 24- to 54-inch diameter sanitary sewer interceptor (unlined concrete pipe)

Rehabilitation design included a combination of open cut and cured-in-place pipe

Design included rehabilitation at one railroad crossing

Rehabilitation design and improvements considered a future parallel/relief interceptor

Rehabilitation of the interceptor impacted two public parks and one City golf course

In total, roughly 6,000 LF of interceptor rehabilitation design was prepared

Features

This rehabilitation was part of the City of Fort Worth's innovative Interceptor Condition Assessment Program (ICAP)

Design included development of specific and restrictive construction access and bypass pumping/piping plans through public parks

Development of proposed improvements considered the City's park master plan

All rehabilitation and proposed improvements considered long term maintenance and operability

Services

Design

Pipeline Design, Assessment & Rehab

25,000

LF evaluated on this system, only 6,000 LF were in need of immediate attention

Case Study

2015 Underground Construction Technology Conference in Houston, Texas