Build a planted bioswale to slow street runoff in Heliópolis

Once a gutter run is clear, the deeper fix for Heliópolis's flooding is giving stormwater somewhere to soak in rather than racing straight to an overloaded drain. A shallow planted bioswale along the curb slows and filters that runoff before it reaches the storm system. This intermediate build follows directly from the cleared gutter section. Standard: UN-Habitat urban drainage guidance; SDG 11 (Sustainable Cities and Communities) Proof: Photo of the finished, planted bioswale Method (UN-Habitat urban drainage guidance; SDG 11 (Sustainable Cities and Communities)): 1. Confirm the section builds on the previously cleared gutter run. 2. Dig a shallow, gently sloped channel by hand along the curb line. 3. Line the channel with gravel at the base for drainage. 4. Plant water-tolerant native species along the swale. 5. Photograph the finished bioswale and record the build date. Done when: Photo of the finished, planted bioswale

Where

Public curbside, Heliópolis, São Paulo 04231

Pay

$340 proposed

This packet is not funded yet, so this figure is a proposed price and not money waiting in escrow. If a buyer funds it, approved proof settles that price onchain. If nobody funds it, approved proof earns provable credit toward the work instead of cash. You see which before you claim, never after.

Proof

Photo of the finished, planted bioswale

This is exactly what gets it approved. Nothing settles without it.

Level

intermediate

Open until

2026-09-18

How this work is done

A documented method, so this packet comes out the same whoever does it. Typically 30–75 minutes. Method of record: EPA green-infrastructure inspection (bioretention / bioswale / permeable pavement function + maintenance)

Bring

• measuring tape
• GPS phone
• camera
• trowel / probe
• data sheet
• gloves

Steps

1. 1. Locate the GI asset; record GPS; identify the type (rain garden / bioswale / permeable pavement / tree filter).
2. 2. Photograph the asset, its inlet, and its outlet/overflow.
3. 3. Check the inlet and outlet for blockage (sediment, trash, mulch) and note whether flow can enter/leave freely.
4. 4. Check for standing water and estimate whether it drains within the design window (typically <24-48h after rain); probe media if dry.
5. 5. Assess vegetation/media condition and estimate sediment/trash accumulation depth.
6. 6. Note erosion, bypass, or structural damage and list the maintenance needed.
7. 7. Enter asset type, condition, inlet/outlet status, drainage observation, sediment level, maintenance needs, GPS, photos; sign.

If it does not match the plan

• Standing water persists > 48h after rain -> flag failed infiltration (clogged media) for rehab.
• Inlet or outlet blocked -> flag for cleaning; the asset isn't capturing runoff.
• Erosion, undercutting, or flow bypassing the asset -> flag for repair.
• Documentation only — no digging out media or altering structures.

What counts as done

• Asset type + overall condition recorded
• Inlet + outlet clear/blocked status recorded
• Standing-water / infiltration observation recorded
• Sediment/trash level + maintenance recommendations + GPS + photos

Proof is measured against these, not judged by taste.