Urban Tree Inventory & Risk Logger
Street-tree survey log — species, DBH, condition and ISA-style risk observations with GPS pins; offline, exports CSV/GeoJSON for canopy GIS.
New tree inspection
Full street-tree inventories are typically refreshed every 5–10 years, with risk-based patrols of high-traffic corridors every 1–3 years.
Field guide: Urban Tree Inventory & Risk Logger
An urban tree inventory pays for itself the first time a defensible risk record prevents a claim — and every day in between by turning pruning into a planned program instead of complaint-chasing. This logger captures the core inventory attributes (species, DBH at the standard 1.4 m, height class) alongside the visual defect observations that drive ISA-style risk assessment: deadwood, cavities, fruiting fungi, cracks, recent lean and root-plate movement.
The 'target' field is what separates risk from defect: the same dead limb is routine over a lawn and urgent over a school footpath. Likelihood-of-failure thinking paired with target occupancy is the heart of ISA's TRAQ method, and the export preserves both so a qualified arborist can prioritize the mitigation list.
Field tips
- Measure DBH at 1.4 m on the uphill side; for multi-stem trees record the largest stem and note the count.
- Fresh soil cracking or lifted root plate opposite a new lean is an emergency flag — cordon first, log second.
- Photograph fungal brackets with something for scale; species of fungus changes the decay implication entirely.
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.
Urban Tree Inventory & Risk Logger — Street-tree survey log — species, DBH, condition and ISA-style risk observations with GPS pins; offline, exports CSV/GeoJSON for canopy GIS. Free, offline-first and GPS-aware: open it on any phone, log in seconds, and hand your GIS team clean GeoJSON.
About Urban Tree Inventory & Risk Logger
An urban tree inventory pays for itself the first time a defensible risk record prevents a claim — and every day in between by turning pruning into a planned program instead of complaint-chasing. This logger captures the core inventory attributes (species, DBH at the standard 1.4 m, height class) alongside the visual defect observations that drive ISA-style risk assessment: deadwood, cavities, fruiting fungi, cracks, recent lean and root-plate movement.
How to use Urban Tree Inventory & Risk Logger
- 1Enter the tree tag / location and tap 📍 GPS to pin the tree's exact location (or type coordinates).
- 2Work through the tree checklist — every field matches what a real inspection program records.
- 3Pick a condition on the Good / Fair / Poor / Dead / hazard 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 Urban Tree Inventory & Risk Logger?
- ✓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 ISA Tree Risk Assessment Qualification (TRAQ) methodology / BMP
Frequently asked questions
What is DBH and why 1.4 m?+
Diameter at breast height is the standard trunk measurement taken 1.4 m (4.5 ft) above ground. It's the universal size key in urban forestry — growth models, valuation formulas (CTLA), and pruning cost estimates all key off DBH, so consistent measurement height keeps your inventory comparable.
Does logging defects make me a tree risk assessor?+
No — this log records observations. Classifying risk and prescribing mitigation per ISA's TRAQ methodology requires a qualified, credentialed assessor. A good observation log is exactly what lets that assessor work efficiently across thousands of trees.
Which findings deserve same-day action?+
Hangers (broken branches still lodged in the crown) over paths or roads, recent lean with root-plate heave, large cracks through the trunk, and any contact with energized utility lines (call the utility — never prune near conductors). Everything else can queue for the pruning program.
What's the value of recording species?+
Species drives everything downstream: failure profiles (some species shed limbs notoriously), pest exposure planning (one borer can take out a monoculture street), canopy diversity targets like the 10-20-30 rule, and replacement palettes. Even a common-name entry beats a blank.
Embed Urban Tree Inventory & Risk Logger on your website
Want Urban Tree Inventory & Risk Loggeron 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/urban-tree-survey-logger" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Urban Tree Inventory & Risk Logger — ToolJolt" loading="lazy"></iframe>Related GIS tools
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