Document the flash-flood watermark line near Yegua Creek, site 3, Yegua Creek riparian corridor near Lake Somerville State Park and Trailway, Washington County, TX (2026-07-27)

This public state park corridor has no photo record of how high the last flash flood reached, information the county needs to prioritize drainage and trail repair before the next heavy Post Oak Savanna rain event. Standard: FEMA floodplain and green-infrastructure siting screen, applied here to Washington County's Post Oak Savanna flash-flood and heavy-rain drainage conditions around Brenham. SDG 11.5 disaster resilience. Proof: document-only stand-off photo log + watermark-height measurement + GPS + ranked follow-on note Method (FEMA floodplain and green-infrastructure siting screen, applied here to Washington County's Post Oak Savanna flash-flood and heavy-rain drainage conditions around Brenham. SDG 11.5 disaster resilience.): 1. 1. From an accessible trail, bridge, or bank edge, photograph the flash-flood high-water watermark line on a public structure, bridge abutment, or mature tree, without entering the water. 2. 2. Measure the watermark's height above the normal water line or ground level using a tape measure or paced distance, and photograph the measurement. 3. 3. Note any eroded bank, undercut tree, or washed-out trail segment observed from the accessible path. 4. 4. Record a ranked follow-on note naming the segment for the county drainage or park trail crew. Done when: document-only stand-off photo log + watermark-height measurement + GPS + ranked follow-on note

Where

Yegua Creek riparian corridor near Lake Somerville State Park and Trailway, Washington County, TX

Pay

$90 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

document-only stand-off photo log + watermark-height measurement + GPS + ranked follow-on note

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

Level

entry

Open until

2026-10-26

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.