Reclamation and USGS have recently launched a prize competition seeking new methods or technologies to help reduce the cost of continuous streamflow monitoring.
Details about the challenge can be found at the links below, including information on technical details on solution requirements as well as how to register to submit solutions and eligibility for cash prizes.

https://www.usbr.gov/research/challenges/streamflow.html

https://challenge.gov/a/buzz/challenge/1001/ideas/top#challenge-summary

https://www.innocentive.com/ar/challenge/9933886Click here to add your own text

USGS & Reclamation launch prize competition for streamflow monitoring innovations