Resolve what is already known
Read the federal record and drawing evidence before asking the owner.
The Collaborative Partner
A plan no owner should have to write alone.
Downstream combines public dam records, reviewable document facts, and the knowledge only an owner has. It asks one useful question at a time, remembers across sessions, and assembles a cited Emergency Action Plan draft for qualified review.
Boundary: this demo never generates an inundation boundary, evacuation zone, certification, or submission. It produces a synthetic draft and a documented safe stop.
The friction
The form is not the hard part.
Facts are scattered across public records, old drawings, local memory, and jurisdiction-specific guidance.
One question at a time
Capture practical knowledge in short sessions, with a reason for every question.
Learn how this owner works
Plain language, vocabulary, detail level, and corrections change later interactions.
Build a traceable draft
Every fact has provenance and regulatory text needs a contained source quote.
Measured multimodal evidence
The drawing was read, recorded, and graded.
One real Vertex AI Gemini 3.5 Flash response ships beside the image, truth, and accuracy report.
Gemini 3.5 Flash, recorded output
5 of 5 measured checks passed
- 3/3
- target values matched adjacent truth
- All
- quotes occur in Gemini's own transcription
- 0
- facts dropped by the guard
The drawing says 31 feet while the synthetic registry fixture says 28. Downstream keeps both and marks the conflict for owner review.
Interactive judge preset
Build the draft with Cedar Hollow.
A synthetic dam keeps the workflow testable without making claims about a real owner.
Choose a clean workspace or the guided judge tour to begin.
Start a clean preset.
I will resolve three drawing facts first, turn the source conflict into a targeted question, and ask only what the fixture cannot answer.
Your corrections stay attributable.
After the first answer, revise it here. Downstream keeps both versions and updates the draft.
Reading levelNot learned yet
Detail styleNot learned yet
VocabularyNo preferences yet
Sessions remembered0
Feedback events0
Answer revisions0
Source conflicts surfaced1
Mapping safety gate
Useful enough to guide, disciplined enough to stop.
The line is a documented flow-path input. It is deliberately not drawn as an area.
Synthetic damCounty road input
!
Boundary withheld
No approved map was supplied. Method applicability, jurisdictional acceptance, and reference comparison are unproven. Downstream refuses to invent an extent.
Next safe action
Request an approved map or route this section to the state dam-safety office or a qualified engineer.
Public evidence
Every number and requirement has a route back.
Live query not run yet. It requests high-hazard records whose public EAP status field is null, and labels that field as unreported rather than absent.
| Source | What it supports | Boundary |
|---|---|---|
| USACE National Inventory of Dams | Public inventory and live record fields | Inventory status is not structural condition or proof of compliance |
| FEMA P-64 | EAP purpose, roles, and typical contents | Federal guidance does not replace state requirements |
| ASDSO Emergency Action Planning | Owner collaboration and notification planning | State review and emergency-manager coordination remain necessary |
| SIMS methodology | When simplified mapping may be applicable | Not a substitute for engineering judgment or regulatory compliance |