Manhole Inspection Logger (MACP-style)
Sewer/storm manhole inspection log — cover, frame, chimney, wall, bench and infiltration observations in NASSCO MACP language; offline + GPS.
New manhole inspection
Many utilities target a Level-1 (surface) inspection of every manhole on a 5–10 year rolling cycle, prioritizing basins with known I/I problems.
Field guide: Manhole Inspection Logger (MACP-style)
Manholes are where a collection system confesses: infiltration shows up as weepers and mineral stains, surcharging leaves its debris line on the steps, and H₂S corrosion eats the cone from the inside. This logger uses the structure and vocabulary of NASSCO's Manhole Assessment Certification Program (MACP) — cover, frame, chimney, cone, wall, bench, channel — so a surface (Level 1) inspection feeds cleanly into rehab scoring.
Infiltration observations use the standard weeper → dripper → runner → gusher ladder, which is the difference between a relining candidate and an emergency. GPS-tagging every structure also fixes the oldest problem in sewer mapping: manholes that exist on paper but were paved over decades ago.
Field tips
- Never enter a manhole to inspect — Level 1 is from the surface. Entry is confined-space work under permit, full stop.
- Inspect during dry weather to baseline infiltration; a runner in a drought is a screaming rehab candidate.
- A rocking cover is a noise complaint today and a snapped frame tomorrow; log the rock direction so crews bring the right shims.
Records are stored only in this browser (localStorage) — export regularly. This tool aids field documentation; it does not replace your agency's official inspection procedures or engineering judgment.
Manhole Inspection Logger (MACP-style) — Sewer/storm manhole inspection log — cover, frame, chimney, wall, bench and infiltration observations in NASSCO MACP language; offline + GPS. Free, offline-first and GPS-aware: open it on any phone, log in seconds, and hand your GIS team clean GeoJSON.
About Manhole Inspection Logger (MACP-style)
Manholes are where a collection system confesses: infiltration shows up as weepers and mineral stains, surcharging leaves its debris line on the steps, and H₂S corrosion eats the cone from the inside. This logger uses the structure and vocabulary of NASSCO's Manhole Assessment Certification Program (MACP) — cover, frame, chimney, cone, wall, bench, channel — so a surface (Level 1) inspection feeds cleanly into rehab scoring.
How to use Manhole Inspection Logger (MACP-style)
- 1Enter the manhole id and tap 📍 GPS to pin the manhole's exact location (or type coordinates).
- 2Work through the manhole checklist — every field matches what a real inspection program records.
- 3Pick a condition on the Grade 1–2 (sound) / Grade 3 (moderate) / Grade 4 (poor) / Grade 5 (failed/failing) scale; actionable findings are tallied automatically.
- 4Add notes and log the inspection — it saves instantly to your device, even with zero signal.
- 5Export the round as CSV for your asset system, GeoJSON for the GIS, or print a clean report.
Why use Manhole Inspection Logger (MACP-style)?
- ✓100% free, no sign-up — built for crews, not per-seat licences
- ✓Offline-first: records save to your device instantly and survive dead zones
- ✓One-tap GPS tagging with accuracy capture on every record
- ✓Exports CSV for asset systems, GeoJSON for GIS, and print-ready reports
- ✓Checklist and guidance aligned with NASSCO MACP
Frequently asked questions
What is MACP and why use its grades?+
NASSCO's Manhole Assessment Certification Program standardizes how manhole defects are described and scored (grades 1–5), the manhole counterpart to PACP for pipes. Using its language means your field log translates directly into rehab prioritization software and contractor scopes without re-inspection.
What's the difference between infiltration and inflow?+
Infiltration is groundwater seeping through defects — joints, cracks, chimney leaks — and shows as weepers and drippers. Inflow is stormwater entering directly through covers, rim gaps or illegal connections, and shows as ponding at the rim and surge debris. They have different fixes: sealing/lining vs. dish inserts and grading.
Why do manhole chimneys fail so often?+
The chimney (the adjusting rings between cone and frame) takes traffic impact, freeze-thaw and road-salt brine first. Displaced or cracked rings are the most common defect found in Level 1 inspections and one of the cheapest I/I sources to fix with seals or cast-in-place collars.
Can I log storm structures with the same tool?+
Yes — set the system field to storm. Bench/channel and inflow observations apply the same way; the main difference is that storm structures tolerate infiltration but punish channel obstruction, so the 'channel obstructed' finding drives the cleaning list.
Embed Manhole Inspection Logger (MACP-style) on your website
Want Manhole Inspection Logger (MACP-style)on your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/manhole-inspection-logger" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Manhole Inspection Logger (MACP-style) — ToolJolt" loading="lazy"></iframe>Related GIS tools
Shapefile to GeoJSON Converter
Convert ESRI shapefiles (.shp + .dbf or zipped) to GeoJSON in your browser — attributes preserved, nothing uploaded. Free, no size games.
● LiveShapefile Viewer
Open and inspect ESRI shapefiles online without ArcGIS or QGIS — feature counts, attributes and GeoJSON preview, 100% in your browser.
● LiveKMZ to KML Converter
Extract the KML from any KMZ file in your browser — see bundled icons/overlays too. No upload, no Google Earth install needed.
● Live