在公共绿地边建一段生物滞留浅沟（桥园公园） / Build one bioswale section on the public green edge (Qiaoyuan Park, Tianjin, CN).

桥园公园的一段铺装边缘，暴雨时径流沿路面直冲下水口，绿地就在旁边却一滴都留不住。 / Along one paved edge at Qiaoyuan Park storm runoff races over the surface into the inlet, with green space right beside it holding back nothing at all.

Where

桥园公园, 天津市 / Qiaoyuan Park, Tianjin, CN · Open the map

Pay

$320 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 — recorded, and readable any time at vealth.net/labor/credit/(your wallet). You see which before you claim, never after.

Proof

前后照片＋断面尺寸实测＋植物清单＋倒水试验视频 / before/after photos + measured cross-section + plant list + water-test video

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

Level

intermediate

Open until

2026-10-04

Posted by

0x034F…6c89

The creator wallet. Its signature is what approves proof and settles the wage.

How this work is done

A documented method, so this packet comes out the same whoever does it.

Steps

1. 测量该段汇水面积与坡向，定出浅沟走向。 / Measure the contributing area and fall, and set the swale line.
2. 手工开挖浅沟，深度不超过40厘米，纵坡平缓。 / Dig the shallow swale by hand to no more than 40 cm with a gentle longitudinal fall.
3. 回填透水土壤混合料并整平。 / Backfill with the permeable soil mix and level it.
4. 在进水口做消能碎石并栽植耐水湿乡土植物。 / Set a stone energy dissipator at the inlet and plant water-tolerant native species.
5. 倒水试验，确认径流进入浅沟且在规定时间内下渗。 / Run a water test to confirm runoff enters the swale and drains within the required time.

What counts as done

• 施工前径流路径照片 / Before photo of the runoff path
• 建成后浅沟照片与断面尺寸实测 / After photo of the swale with the measured cross-section
• 栽植植物品种与株数清单 / Plant species and count list
• 倒水试验视频显示径流进入并下渗 / Water-test video showing runoff entering and infiltrating

Proof is measured against these, not judged by taste.

The standard this serves

Green Stormwater Infrastructure. Green stormwater infrastructure is the city's way of handling rain the way a meadow does: rain gardens, planted swales, and permeable pavement that let a storm soak in instead of surging down a pipe. The EPA's inspection standard keeps these systems honest, because a neglected rain garden quietly stops working while still looking like a garden. Mastery is the inspector's eye: reading inlets, overflow, plants, and soil in a single practiced pass. This packet is one such inspection, one basin checked and one record filed, which is precisely how a thousand basins stay alive.