Gravity Sewer
Line Rehabilitation
This project involved the rehabilitation of the gravity sewer lines across the City of Tyler as part of the Consent Decree 90-5-1-1-09767 Group 3 Remedial Measures. The scope of work included cleaning and installing cured-in-place pipe (CIPP) liners, point repairs, manhole rehabilitation/repairs, open cut gravity main replacement, access roads, clearing, and right-of-way restoration. The project covered various pipe sizes, including 16,200 LF of 42” pipe, 809 LF of 36” pipe, 8,444 LF of 30” pipe, and 8,006 LF of 24” CIPP liners. The project also included 479 LF of 48”, 1,080 LF of 30”, and 1,050 LF of 24” open cut replacements. Additionally, 34,619 LF of access roads and 334 LF of culverts for creek crossings were constructed.
The project, contracted to Insituform, had a construction cost of $18.6M and was completed three months ahead of deadline. The City of Tyler defined success as the timely and economic completion of the project, driven by a Consent Decree requiring the development and implementation of a Capacity, Management, Operation, and Maintenance (CMOM) Program to enhance the management, operation, and maintenance of the wastewater collection system. Despite these challenges, the project improved access to the trunk line for future inspections and maintenance, increased the service life of the asset, and enhanced environmental quality by eliminating a significant source of inflow and infiltration within the City’s wastewater collection system.
Project Type
Project Sub-Type
Wastewater
Infrastructure
Design
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