GUTTER GRATE GG-001
Curb-inlet trash basket with smart-fill sensor · One-page specification
Assembly Overview
Not to scaleWhat it is: A drop-in curb-inlet trash basket. Water and debris flow through the grate; the basket catches bottles, leaves, sediment, and oil residue. A built-in QR plate turns every drain into a public reporting point, and the optional GG-SENSE pod tells the map when the basket is full.
Why it works: City inlet IDs only cover a whole street. Gutter Grate gives each drain its own unit-level ID, GPS tag, and fill reading, so crews pull bins that are actually full instead of following a calendar route.
Service: Two workers lift the handle, scan the QR to log the empty, and slide a fresh basket back in. No tools, no curb demolition.
Bill of Materials
| # | Part | Est. |
|---|---|---|
| 1 | Top grate 316 SS | $30–$90 |
| 2 | QR ID plate Acrylic + vinyl | $1–$5 |
| 3 | Lift handle 316 SS U-bolt | $10–$25 |
| 4 | Cross stiffeners 316 SS | incl. |
| 5 | Basket body HDPE sheet | $20–$50 |
| 6 | Support flange Rubber + brackets | $5–$10 |
| 7 | GG-SENSE pod Ultrasonic/LoRa | $35–$45 |
| — | Fasteners 316 SS | $5–$15 |
Total: $85–$155 / unit · production target $75–$165
Key Specifications
- Opening
- 24″ W × 36″ L
- Basket depth
- 14″
- Open area
- >55%
- Grate
- 316 SS
- Basket
- HDPE
- Removal
- Tool-free
- Tracking
- QR + LoRa
- Sensor life
- 5+ yr
- Weight
- ~12–18 lb
GG-SENSE Smart-Fill
How it measures: A small pod under the grate lip fires an ultrasonic burst downward. The echo return time tells the distance to the debris pile; shorter distance = fuller basket.
How it reports: The CubeCell MCU wakes hourly, sends a LoRaWAN packet to a city gateway, and a webhook updates the map. Events (≥85% fill or tamper) wake the sensor immediately.
Why LoRa: Sub-GHz radio penetrates the curb inlet and reaches ~5 km in the city. One gateway covers ~1,000 drains. Cellular modems cost more and burn more power.
BOM ≈ $35 · service-free life 5+ yr