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US Army Corps of Engineers

The US Army Corps of Engineers is a federal agency that plays a critical role in managing the nation's water resources and infrastructure. They are responsible for building and maintaining dams, levees, and flood control systems, overseeing construction of ports, harbors, and waterways, and providing engineering support to military operations. USACE publishes open APIs including the CWMS Data API for water management timeseries data, the National Inventory of Dams API, and open geospatial datasets.

3 APIs 0 Features
Water ResourcesFederal GovernmentMilitary EngineeringInfrastructureOpen DataGeospatial Data

APIs

USACE CWMS Data API

The Corps Water Management System Data API (CDA) is a RESTful API providing public access to USACE water management data. It supports retrieval of timeseries data (stream flow, ...

USACE National Inventory of Dams API

The National Inventory of Dams (NID) API provides access to the comprehensive database of US dams maintained by the US Army Corps of Engineers. The database contains information...

USACE Open Data

The USACE Open Data program provides public access to geospatial data, regulatory permit information, and other datasets maintained by the US Army Corps of Engineers. Data is av...

Collections

USACE CWMS Data API

OPEN

Pricing Plans

Us Army Corps Of Engineers Plans Pricing

3 plans

PLANS

Rate Limits

Us Army Corps Of Engineers Rate Limits

5 limits

RATE LIMITS

FinOps

Us Army Corps Of Engineers Finops

FINOPS

Semantic Vocabularies

Us Army Corps Of Engineers Context

30 classes · 3 properties

JSON-LD

API Governance Rules

US Army Corps of Engineers API Rules

8 rules · 2 errors 5 warnings 1 info

SPECTRAL

JSON Structure

Usace Timeseries Structure

0 properties

JSON STRUCTURE

Example Payloads

Usace Cwms Data Get Locations Example

2 fields

EXAMPLE

Usace Cwms Data Get Timeseries Example

2 fields

EXAMPLE

Resources

🔗
LinkedIn
LinkedIn

Sources

Raw ↑ 
opencollection: 1.0.0
info:
  name: USACE CWMS Data API
  version: 2.0.0
items:
- info:
    name: Timeseries
    type: folder
  items:
  - info:
      name: Get Timeseries Data
      type: http
    http:
      method: GET
      url: https://cwms-data.usace.army.mil/cwms-data/timeseries
      params:
      - name: name
        value: ''
        type: query
        description: Timeseries identifier (e.g., TULA.Flow.Inst.1Hour.0.CBT-RAW)
      - name: office
        value: ''
        type: query
        description: The office that owns the timeseries
      - name: unit
        value: ''
        type: query
        description: The units for the time series values
      - name: datum
        value: ''
        type: query
        description: The vertical datum for elevation timeseries
      - name: begin
        value: ''
        type: query
        description: Start time in ISO 8601 format or milliseconds
      - name: end
        value: ''
        type: query
        description: End time in ISO 8601 format or milliseconds
      - name: timezone
        value: ''
        type: query
        description: Timezone for time formatting
      - name: format
        value: ''
        type: query
        description: Response format
      - name: page-size
        value: ''
        type: query
        description: Number of records to return per page
      - name: page
        value: ''
        type: query
        description: Page cursor for pagination
    docs: Retrieves timeseries data from the CWMS database. Results can be filtered by office, location, and time range. Dates
      may be in ISO 8601 format or milliseconds since the Unix epoch.
  - info:
      name: Get Timeseries Catalog
      type: http
    http:
      method: GET
      url: https://cwms-data.usace.army.mil/cwms-data/timeseries/catalog
      params:
      - name: office
        value: ''
        type: query
        description: Filter by office identifier
      - name: timeseries-id-like
        value: ''
        type: query
        description: Filter by timeseries ID pattern (supports SQL LIKE syntax)
      - name: page-size
        value: ''
        type: query
        description: Number of catalog entries per page
      - name: page
        value: ''
        type: query
        description: Pagination cursor
    docs: Returns a catalog of available timeseries identifiers, optionally filtered by office and location.
- info:
    name: Locations
    type: folder
  items:
  - info:
      name: Get Locations
      type: http
    http:
      method: GET
      url: https://cwms-data.usace.army.mil/cwms-data/locations
      params:
      - name: names
        value: ''
        type: query
        description: Filter by location names (pipe-delimited)
      - name: office
        value: ''
        type: query
        description: Filter by office identifier
      - name: unit
        value: ''
        type: query
        description: Unit system for coordinate data (EN or SI)
      - name: datum
        value: ''
        type: query
        description: Vertical datum for elevation
      - name: category-id
        value: ''
        type: query
        description: Location category filter
      - name: page-size
        value: ''
        type: query
        description: Records per page
      - name: page
        value: ''
        type: query
        description: Pagination cursor
    docs: Returns a list of CWMS locations, optionally filtered by office, kind, and name pattern.
  - info:
      name: Get Location by ID
      type: http
    http:
      method: GET
      url: https://cwms-data.usace.army.mil/cwms-data/locations/:location-id
      params:
      - name: location-id
        value: ''
        type: path
        description: The location identifier
      - name: office
        value: ''
        type: query
        description: Office that owns the location
      - name: unit
        value: ''
        type: query
        description: Unit system (EN or SI)
      - name: datum
        value: ''
        type: query
        description: Vertical datum
    docs: Returns details for a specific CWMS location.
- info:
    name: Catalog
    type: folder
  items:
  - info:
      name: Get Data Catalog
      type: http
    http:
      method: GET
      url: https://cwms-data.usace.army.mil/cwms-data/catalog/:dataset
      params:
      - name: dataset
        value: ''
        type: path
        description: Dataset type to catalog
      - name: office
        value: ''
        type: query
        description: Filter by office
      - name: page-size
        value: ''
        type: query
        description: Records per page
      - name: page
        value: ''
        type: query
        description: Pagination cursor
    docs: Returns a catalog of available data items for the specified dataset type.
- info:
    name: Ratings
    type: folder
  items:
  - info:
      name: Get Ratings
      type: http
    http:
      method: GET
      url: https://cwms-data.usace.army.mil/cwms-data/ratings
      params:
      - name: rating-id-mask
        value: ''
        type: query
        description: Filter by rating ID pattern
      - name: office
        value: ''
        type: query
        description: Filter by office
      - name: begin
        value: ''
        type: query
        description: Filter ratings effective after this date
      - name: end
        value: ''
        type: query
        description: Filter ratings effective before this date
      - name: page-size
        value: ''
        type: query
        description: Records per page
      - name: page
        value: ''
        type: query
        description: Pagination cursor
    docs: Retrieves rating tables used to convert measured values to derived values (e.g., stage to flow).
- info:
    name: Levels
    type: folder
  items:
  - info:
      name: Get Location Levels
      type: http
    http:
      method: GET
      url: https://cwms-data.usace.army.mil/cwms-data/levels
      params:
      - name: location-id-mask
        value: ''
        type: query
        description: Filter by location ID pattern
      - name: office
        value: ''
        type: query
        description: Filter by office
      - name: unit
        value: ''
        type: query
        description: Unit system
      - name: datum
        value: ''
        type: query
        description: Vertical datum
      - name: begin
        value: ''
        type: query
        description: Start time filter
      - name: end
        value: ''
        type: query
        description: End time filter
      - name: page-size
        value: ''
        type: query
      - name: page
        value: ''
        type: query
    docs: Retrieves location levels (stage, elevation thresholds) for CWMS locations.
- info:
    name: Offices
    type: folder
  items:
  - info:
      name: Get Offices
      type: http
    http:
      method: GET
      url: https://cwms-data.usace.army.mil/cwms-data/offices
    docs: Returns a list of USACE district offices in the CWMS system.
- info:
    name: Reservoirs
    type: folder
  items:
  - info:
      name: Get Reservoir Projects
      type: http
    http:
      method: GET
      url: https://cwms-data.usace.army.mil/cwms-data/reservoirs
      params:
      - name: office
        value: ''
        type: query
        description: Filter by office
      - name: project-id-like
        value: ''
        type: query
        description: Filter by project ID pattern
      - name: page-size
        value: ''
        type: query
      - name: page
        value: ''
        type: query
    docs: Returns USACE reservoir project information, including pool data and storage.
bundled: true