Buda, TX case study · May 2026
Sagging main under a Buda warehouse slab, mapped before demo
Developer / engineering firm · Warehouse conversion, Buda near I-35 · CCTV Pipeline Inspection & Locating
Drag the divider to compare. Before: Sewer camera view inside a Buda warehouse under-slab sanitary main holding standing water and debris in a sagging section After: Sewer camera view of the same Buda under-slab main after cleaning and re-grading, showing clean walls and free flow
- Slab demo reduced to
- 2 locations
- Footage mapped
- 268 ft
- As-built corrected
- Yes
- Change orders
- Avoided
The problem on this Buda site
An engineering firm was designing a tenant conversion in an older warehouse and needed to know whether the existing under-slab sanitary could carry the new use. The as-builts were incomplete and the demo package was already out for pricing.
How our NASSCO-certified crew approached it
- Inspected the under-slab sanitary before the demo package was priced, not after award
- Measured standing water depth at each sag as a percentage of diameter so the design team could judge capacity
- Sonde-mapped full alignment and depth and paint-marked the run on the slab
- Delivered a corrected as-built with the video so the design and demo scopes matched the real pipe
What the camera documented
- Two sags holding standing water, the deeper one at roughly 30 percent of pipe diameter
- Abandoned branch line still tied in and holding stagnant water
- Grade adequate on the remainder of the main for the proposed occupancy loads
- Full alignment and depth mapped by sonde and marked on the slab for the design team
Measurable results
- Design team routed new fixture groups to the sound portion of the main and limited slab demo to the two sag locations
- Abandoned branch cut and capped during demo instead of being discovered mid-construction
- Marked alignment on the slab let the demo contractor price saw-cutting precisely rather than carrying a contingency
Need this on your Buda project?
CSC Pipe Inspection runs commercial CCTV, jetting, hydro excavation and line locating across Austin and Central Texas with 25+ years of field experience and NASSCO/PACP-coded reporting.
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