big thompson river forecasting
DESCRIPTION
Big Thompson River Forecasting. Eastern Colorado Area Office. Manages projects local to Colorado’s Front Range Numerous activities and responsibilities Two main projects: Colorado-Big Thompson Fryingpan-Arkansas. The Eastern Colorado Area Office in Loveland, CO. - PowerPoint PPT PresentationTRANSCRIPT
Big Thompson River Forecasting
Eastern Colorado Area Office
• Manages projects local to Colorado’s Front Range
• Numerous activities and responsibilities
• Two main projects:– Colorado-Big
Thompson– Fryingpan-Arkansas
The Eastern Colorado Area Office in Loveland, CO
The Colorado-Big Thompson Project
Willow Creek Dam and Reservoir
The Colorado-Big Thompson Project
Three Lakes Collection System
Granby Dam, Reservoir and Farr Pump
• Largest reservoir• Serves as “savings
account” for project• One dam, three dikes• Releases to Colorado
River
The Colorado-Big Thompson Project
Shadow Mountain Reservoir and Grand Lake
Shadow Mountain Reservoir near the dam, the “boatable” canal, and Grand Lake clarity
The Colorado-Big Thompson Project
Alva B. Adams Tunnel
• Logistical solution
• Built 1940-47• 13.1 miles long• Under RMNP• 9.5 ft in diameter
The Colorado-Big Thompson Project
The Colorado-Big Thompson Project
The Colorado-Big Thompson Project
The Colorado-Big Thompson Project
Natural Inflow can be Skimmed
Limited Capacity / High Variability
Big Thompson Forecasting Project
• CHPS FEWS System• Natural Inflow to Lake Estes• Natural Flow on North Fork at Drake• Big Thompson River at Mouth of Canyon
• Forecasts• 1-hr Timestep• Short-term• Ensembles
Big Thompson Forecasting Project
• Implemented by Riverside• Operated 2013 by ECAO• Transferred to MBRFC in 2014• Partnership for Forecasting
• MBRFC—Day-to-day forecasting and maintenance
• ECAO—Occasional forecasting and scenario investigation
Thank you and Questions