Primary purpose
primary_purpose
Optional
Primary purpose of the dam, e.g. Hydroelectric, Irrigation, Flood Risk Reduction, Recreation, Water Supply.
Dam Safety Risk Monitor — USACE National Inventory of Dams
Pricing
from $4.40 / 1,000 results
Monitor US dam safety risk from the USACE National Inventory of Dams. Filter 92k+ dams by state, hazard potential, condition and owner; get a composite risk score from hazard, condition and inspection staleness, plus missing-EAP flags. For insurers, engineers and due diligence.
Pricing
from $4.40 / 1,000 results
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Developer
Kyle Maloney
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Monthly active users
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NID ID
nid_id
Optional
Official National Inventory of Dams identifier for the dam.
Federal ID
federal_id
Optional
Federal structure identifier (NID ID plus structure suffix) when the record is an associated structure.
Dam name
name
Optional
Official dam or structure name, whitespace-trimmed.
State
state
Optional
Full US state name where the dam is located.
County
county
Optional
County where the dam is located.
Nearest city
city
Optional
Nearest downstream city or town.
River or stream
river
Optional
River or stream the dam impounds.
Latitude
latitude
Optional
Dam latitude in decimal degrees (NAD83).
Longitude
longitude
Optional
Dam longitude in decimal degrees (NAD83).
Owner type
owner_type
Optional
Primary owner type: Federal, State, Local Government, Public Utility, Private, or Not Listed.
Primary purpose
primary_purpose
Optional
Primary purpose of the dam, e.g. Hydroelectric, Irrigation, Flood Risk Reduction, Recreation, Water Supply.
Dam type
primary_dam_type
Optional
Primary construction type, e.g. Earth, Concrete, Rockfill, Timber Crib.
Dam height (ft)
dam_height_ft
Optional
Dam height in feet (falls back to NID height when dam height is absent).
Max storage (acre-ft)
max_storage_acre_ft
Optional
Maximum reservoir storage in acre-feet (falls back to NID storage).
Year completed
year_completed
Optional
Year the dam was originally completed.
Hazard potential
hazard_potential
Optional
Downstream hazard potential classification: High (probable loss of life on failure), Significant, Low, or Undetermined.
Condition assessment
condition_assessment
Optional
Latest condition assessment: Unsatisfactory, Poor, Fair, Satisfactory, or Not Available.
Condition assessed on
condition_assess_date
Optional
Date of the latest condition assessment (YYYY-MM-DD).
Last inspection
last_inspection_date
Optional
Date of the most recent inspection on record (YYYY-MM-DD).
Inspection age (years)
inspection_age_years
Optional
Years elapsed since the last inspection, one decimal. Null when no inspection is on record.
Inspection frequency (years)
inspection_frequency_years
Optional
Required inspection interval in years, when reported.
EAP status
eap_status
Optional
Emergency Action Plan status: Yes, No, Not Required, or Not Available when unreported.
EAP last revised
eap_last_rev_date
Optional
Date the EAP was last revised (YYYY-MM-DD), when reported.
Operational status
operational_status
Optional
Current operational status, e.g. Normal Operations, Under Remediation.
Risk score
risk_score
Optional
Composite risk score = hazard weight (High 10 / Significant 5 / Low 1) x condition weight (Unsatisfactory 3.5 / Poor 3 / Fair 2 / Satisfactory 1) x inspection-staleness factor (1.0 fresh to 3.0 at 20+ years), plus 5 if no current EAP. Range ~1 to 110.
Risk flags
risk_flags
Optional
Machine-readable risk flags, e.g. high_hazard_poor_condition, unsatisfactory_condition, poor_condition, condition_not_assessed, inspection_stale_10yr, inspection_stale_5yr, no_inspection_on_record, eap_missing, eap_not_required.
[ "condition_not_assessed", "eap_missing"]Data updated
data_updated
Optional
Date the source NID record was last updated (YYYY-MM-DD).
Source URL
source_url
Optional
Regulator or program website for the dam, when listed.