Install a trash-capture screen at a storm drain outfall above the canyon

Street trash from Tijuana's hillside colonias washes into storm drains that empty directly into Los Laureles Canyon and, eventually, the Tijuana River Estuary — a well-documented cross-border pollution path. A simple screen anchored at the drain outfall, worked entirely from dry pavement, catches trash before it reaches the canyon floor. This work never touches the canyon channel itself. Standard: UNEP marine litter reduction guidance; SDG 14 (Life Below Water) Proof: Photo of the anchored trash-capture screen at the outfall Method (UNEP marine litter reduction guidance; SDG 14 (Life Below Water)): 1. Confirm the drain outfall is dry and accessible from the street or curb. 2. Measure the outfall opening for the capture screen. 3. Anchor the screen frame to the outfall using rated hardware, working from dry pavement only. 4. Test that water still passes through the screen without pooling. 5. Photograph the installed screen and record the install date. Done when: Photo of the anchored trash-capture screen at the outfall

Where

Storm drain outfall, curb above canyon rim, Colonia Sánchez Taboada, Tijuana, Baja California 22203

Pay

$240 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 anchored trash-capture screen at the outfall

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.