Arlington Water Transmission Pipe – Project Spotlight

CASE STUDY

Concrete Water Transmission Pipe Rehabilitation

Pierce-Burch Water Treatment Plant – Arlington, Texas

Project Summary

Client: City of Arlington
Location: Pierce-Burch Water Treatment Plant
Pipe Size & Length: 54-inch concrete pipe, 420 ft
Project Duration: Completed in 8 days (scheduled for 14 days)
Point of Contact: Cijo Jose, Water Treatment Plant Manager
The City of Arlington required structural rehabilitation of a deteriorated water transmission pipe showing signs of concrete scouring and leaking joints. The project restored the pipe’s structural integrity and ensured reliable stormwater conveyance to the facility’s underground reservoirs.

Challenges

Heavy Debris Accumulation: Over 115 five-gallon buckets of mud and grit removed.
Water Mitigation: Pipe required complete drying to ensure coating adhesion.
Tight Timeline: City allocated 14 days; project team targeted—and achieved—completion in under 10 days.

Methodology

Surface Preparation

Mechanical cleaning of all surfaces
Complete debris removal
Thorough drying of the concrete substrate

Coating & Structural System

1. Primers

OBIC Prime 1500CP: Deep penetration to strengthen deteriorated concrete
OBIC Prime 1503S: Applied to steel interfaces and transition areas to Hobas pipe

2. Structural Rehabilitation

OBIC 1306 Structural Foam installed in 50-foot sections to restore structure and fill voids

3. Protective Topcoat

OBIC 1100PW applied after foam became tack-free, providing long-term corrosion and infiltration protection

Safety Compliance

All crew members completed required safety training through Walsh Group prior to site mobilization, ensuring safe and compliant operations within confined spaces.

Results

Completed in 8 days — 6 days ahead of the City’s schedule
Structural integrity fully restored
All leaks and infiltration points eliminated
Significantly extended service life of the transmission pipe
Improved operational reliability for the Pierce-Burch Water Treatment Plant