Log the Red River flood-stage water line near Long Bien's stilt housing (2026-07-18)

Long Bien's riverside households live on the Red River floodplain outside the main dike, and monsoon-season water rises fast enough that residents need a simple repeated record of how high it reaches to plan evacuation timing and back requests for better warning systems. Standard: UN-Habitat urban flood-risk monitoring guidance; SDG 11.5 (reduce disaster impacts). Proof: Timestamped waterline photo + log Method (UN-Habitat urban flood-risk monitoring guidance; SDG 11.5 (reduce disaster impacts).): 1. Stand on the dry raised path at the marked observation point. 2. Photograph the waterline against the fixed reference mark. 3. Record date, time, and rainfall or river-stage condition. 4. Note any visible erosion or bank change from the public vantage point. 5. Submit the photo and log entry. Done when: Timestamped waterline photo + log

Where

Riverside path, Long Bien floodplain, Hanoi, Vietnam

Pay

$80 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

Timestamped waterline photo + log

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

Level

entry

Open until

2026-07-25

How this work is done

A documented method, so this packet comes out the same whoever does it. Typically 45–90 minutes. Method of record: FEMA floodplain + green-infrastructure siting screen

Bring

• GPS phone
• tape/ruler for deposition depth
• metals field kit (if sediment screen in scope)
• boots + gloves
• camera

Steps

1. 1. Confirm post-event conditions are safe; navigate to the site; record GPS.
2. 2. Photograph deposited sediment / affected area.
3. 3. Measure deposition depth at representative points.
4. 4. If a sediment contaminant screen is in scope, run the metals field kit and record values.
5. 5. Note debris, hazards, and the extent (sketch).
6. 6. Enter depth, any analytes, hazard notes, GPS, photos into the proof record; sign.

If it does not match the plan

• Unstable ground / submerged debris / contaminated water -> document from safe footing; do not enter.
• Elevated metals in deposited sediment -> flag before any reuse; recommend lab confirm.

What counts as done

• Deposition depth recorded at representative points
• Metals screen recorded (if in scope)
• Debris/hazard note + extent sketch
• GPS waypoint + timestamped photos

Proof is measured against these, not judged by taste.