Grand River Dam Authority

06/10/2026

GRDA Floodwater Release Bulletin - Real time data can be found by visiting: http://stormops.grda.tech/riveroperations

06/09/2026

Floodwater release bulletin:

At 8AM on Tuesday, June 9:

• Grand Lake elevation was 747.13 feet.
• At the direction of the United States Army Corps of Engineers, one main spillway gate and three east gates were open at Pensacola Dam, discharging 17,028 cubic feet per second (cfs) of water.
• Six units were online at the Pensacola Dam powerhouse, releasing 12,995 cfs of water through generation.
• Releases through floodgates and generation totaled 30,023 cfs.
• Inflows into Grand Lake totaled 48,229 cfs.

• Lake Hudson elevation was 621.14 feet.
• One floodgate was open at Robert S. Kerr Dam, releasing 354 cfs.
• Four units were online at the Robert S. Kerr Dam powerhouse, releasing 32,400 cfs of water through generation.
• Releases through floodgates and generation totaled 32,754 cfs.
• Inflows into Lake Hudson totaled 36,914 cfs.
Real time data can be found by visiting:

06/08/2026

Rivers play an important role in supporting our communities, ecosystems, and water resources. 🌊

GRDA works to responsibly manage and protect the rivers that help power and sustain Oklahoma.

06/03/2026

FAQ: At What Level Does the Corps of Engineers Take Control?

During periods of high water, management responsibilities may shift. Understanding how responsibilities are shared helps provide clarity during changing conditions.

06/01/2026

Join us for an all-inclusive professional learning experience with a new groundwater theme! Designed for educators, Riverology combines field exploration, standards-aligned curriculum, and collaboration with natural resource experts.

✔️ New curriculum for grades K–8, including a brand-new educator guide from Project WET
✔️ Hands-on field experiences alongside experts and fellow educators
✔️ 24 hours of Professional Development
✔️ Lodging, meals, Illinois River float trip, and event T-shirt included

Limited to 40 participants.
Early-bird rate: $75 (after May 31: $100)

Register online: https://bit.ly/48u5zQx

Questions?
Jacklyn Smittle | GRDA | [email protected]
| (918) 981-8473
Jack Hilgert | Oklahoma Conservation Commission | [email protected]
| (405) 613-3835

05/28/2026

GRDA's Behind The Terms: What is Transmission? ⚡

Transmission is a key part of how electricity reaches communities.
After power is generated, it travels across high-voltage lines to local utilities, which then distribute it to homes and businesses.

05/25/2026

This Memorial Day, we honor and remember those who gave their lives in service to our country.

Their sacrifice will never be forgotten. 🇺🇸

05/22/2026

Healthy ecosystems are an important part of strong communities. GRDA works to responsibly manage the natural resources that support both.

05/21/2026

Read more about the newly dedicated Upper Illinois River Water Trail and what it means for recreation, tourism, and conservation across Oklahoma and Arkansas. 👇

The Arkansas Game and Fish Commission gathered with its conservation partners in Siloam Springs last Friday to celebrate the official opening of the Upper Illinois River Water Trail, the first Arkansas Water Trail in Northwest Arkansas.