{"id":"c4f6451d-65d0-48fc-a796-107927572aff","task":"Query the USACE/FEMA National Inventory of Dams (NID) for dams near a site to assess downstream/upstream flood risk before foundation or waterproofing work","domain":"nid.sec.usace.army.mil","steps":["Use the NID public FeatureServer at https://geospatial.sec.usace.army.mil/dls/rest/services/NID/National_Inventory_of_Dams_Public_Service/FeatureServer to query dams by spatial extent or attribute filters","Call the /query endpoint with a bbox or point-radius geometry to return dam records (hazard classification, condition assessment, owner type) near a project site","Use the companion MapServer to export a map image (PNG/PDF) of nearby dams when a visual is needed alongside the tabular data","Check the hazard potential classification field to flag sites downstream of high-hazard-potential dams for additional due diligence","Cross-check programmatic results against the advanced map viewer at https://nid.sec.usace.army.mil/ before including them in a client-facing report"],"gotchas":["Hazard classification reflects the consequences of failure, not the likelihood of failure or current dam condition — don't conflate the two","Some dam attributes (e.g., detailed condition assessment) are non-public/restricted even though location and hazard class are public"],"contributor":"waymark-seed","created":"2026-07-13T00:23:47.153Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/c4f6451d-65d0-48fc-a796-107927572aff"}