Reference · built on requestCommons signalAir, water & environment

Water Data for Texas

Daily reservoir storage, water level, and percent full for Texas water supply reservoirs from the Texas Water Development Board.

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About

Water Data for Texas is run by the Texas Water Development Board's Water Science and Conservation group. Its reservoir section publishes daily averaged water level, conservation storage, percent full, and surface area for monitored water supply reservoirs, computed from gauges operated by USGS, IBWC, USACE, USBR, and LCRA and polled about every six hours.

An operator on Fibric reads the reservoirs you name and proposes a notice or a checklist when storage or level crosses the line you set. You approve or decline, and the record keeps the reservoir and reading behind it.

This is a reference listing. It documents what Fibric would read from Water Data for Texas and what it could propose, based on the publisher's published interfaces. Fibric builds it under a managed deployment when you request it; selecting it here installs nothing.

Inputs

  • Statewide daily conditions as period-of-record, one-year, and 30-day CSV files under /reservoirs/statewide
  • Per-reservoir daily history as /reservoirs/individual/<name>.csv with -1year and -30day variants
  • Instantaneous water levels for every gauge as GeoJSON or CSV from /reservoirs/api/instantaneous
  • Fields per reading: date, percent full, water level, reservoir storage, conservation storage, conservation capacity, surface area
  • Flood pool position per reservoir: water_level_into_flood_pool, flood_height_percent, and flood_pool_elevation
  • Recent conditions for mapping as recent-conditions.geojson and recent-conditions.kmz

Proposed actions

Read-only. This feed informs operators; it changes nothing.

Proposed actions are target capabilities. Every action runs propose-first and needs a validated deployment and the appropriate permissions.

What you can build

  • Track a reservoir entering its flood pool

    Read the instantaneous feed for the reservoir upstream of a site. When water_level_into_flood_pool rises above zero, the operator proposes the storm checklist for your approval.

    With Storm Prep

  • Tell tenants when a lake ramp closes

    Read percent full and water level for a lakeside property. When the level falls below the elevation your ramp or intake needs, the operator proposes a shutdown notice to residents.

    With Shutdown Notice

  • Put supply reservoirs in the morning brief

    Read the 30-day CSV for the reservoirs that supply your sites. The brief shows conservation storage, percent full, and the change over the month.

    With Morning Brief

Requirements

  • The lake_short_name or URL name of each reservoir you watch, from the instantaneous GeoJSON
  • Tolerance for daily averages; TWDB polls source gauges about every six hours and publishes averaged values
  • An acknowledgment of TWDB where you display the data, which the agency asks for
Authentication
No key. Every CSV, GeoJSON, and KMZ path is a plain HTTPS download.

Limits

  • Daily values are averages; TWDB states the site may not be adequate where near real-time or un-averaged data is needed
  • Gaps are filled by linear interpolation or the last valid reading, so a flat line can be a gauge outage
  • Instantaneous levels are provisional and subject to revision; the vertical datum may differ from the source agency's site
  • Flood-control reservoirs are excluded from statewide totals

Access and pricing

Reference listing. Public feed access is separate from Fibric integration. If you request this feed, your quote covers the build, usage, and support.

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Questions and answers

Where do the reservoir readings come from?
Gauges run by USGS, IBWC, USACE, USBR, and LCRA. TWDB polls them about every six hours and converts elevation to storage with elevation-capacity rating curves from reservoir surveys. Where no curve exists, volume comes from the source agency.
What does percent full mean here?
The ratio of conservation storage to conservation capacity. Conservation storage is the usable water: total storage minus any water in the flood pool and minus the dead pool below the lowest intake.
Can you use the data commercially?
TWDB freely grants permission to copy and distribute its materials and would appreciate acknowledgment. No key or registration is required for any of the downloads.
Ask about Water Data for Texas

Ask about the capabilities and requirements in this listing.

For project-specific requirements, contact Fibric.

This Commons signal listing is developed, published, and supported by Fibric. It reads public data published by Texas Water Development Board (waterdatafortexas.org). Upstream agencies and projects are the property of their respective owners, who are not affiliated with Fibric and do not sponsor or endorse this listing. Trademark policy