Manor, TX case study · November 2025
Wet-weather I and I survey on an older Manor basin
Municipal / public works · Older collection basin, central Manor · MACP Manhole & CCTV Inspection
Drag the divider to compare. Before: Interior of an older Manor sanitary manhole with brick deterioration and active infiltration running down the wall After: Interior of the same Manor manhole after rehabilitation, showing sealed walls and a clean channel
- Structures inspected
- 21
- Mainline inspected
- 1,860 ft
- Rehab scope reduced to
- 400 ft
- Coding standard
- PACP + MACP
The problem on this Manor site
Peak wet-weather flows were running several times dry-weather baseline and the utility was under pressure to show a defensible I and I reduction plan before the next capital cycle. Records on the older basin were sparse.
How our NASSCO-certified crew approached it
- Split the survey into manhole inspection to MACP and mainline CCTV to PACP so structures and pipe were rated separately
- Inspected during and shortly after rainfall to catch active infiltration rather than dry-day conditions
- Ranked every asset by condition score and estimated contribution so the plan was priority ordered
- Handed over a GIS-ready defect export the utility's engineer could drop into the capital plan
What the camera documented
- Active infiltration at 6 of 21 structures, concentrated in the oldest brick section
- Root intrusion and open joints across roughly 400 ft of clay mainline
- One cross-connected area drain feeding stormwater directly into the sanitary
- Newer PVC extensions sound, taking them out of the rehab scope
Measurable results
- Rehab plan cut to the 6 structures and 400 ft actually contributing flow, instead of a whole-basin program
- Cross-connection removed, taking a measurable slug of stormwater out of the sanitary system
- Coded data and video went straight into the capital plan and the regulatory file
Need this on your Manor 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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