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USGS Science in Maine - Visit to 01047000

Information presented is factual at the time of creation.
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Hi everyone. My name is Nick Stasulis and I'm a Hydrologic Technician with the Maine Office of the

USGS. Today, we're on the Carrabassett River near North Anson, our station number 01047000.

We're out today performing maintenance on some of our manned cableways. These manned cableways

allow us to access the river fordischarge measurements in places where boat access is impossible and

there are no bridge crossings. We use these cableways to make discharge measurements by lowering a

velocity meter down to the water. Of course, these velocity meters give us the speed of the water. We

use the cableway markings to measure our distance across the river and we use our velocity meter to

sound the bottom of the river. Once we've sounded the bottom of the river and measured the distance

we've moved, we can compute the area of our cross section. Using the velocity readings from our

velocity meter, we can then compute the discharge, in cubic feet per second, of the water flowing past

this cross section.

Now that maintenance is complete, and we feel the cableway is safe, we'd like to take you out

for a ride. So let's go.

This cableway has an aluminum cablecar that is suspended on a 1-inch steel cable. The cablecar has

sheaves that ride on top of the steel cable, a brake that allow us to slow or stop our motion, and a puller

that we clip onto the cable and allow us to pull ourselves up the slope on either bank. The slope in the 1-

inch steel cable is an engineering design. It reduces the overall stress on the cableway system. The

tighter the cable, the more stress we put on our system. On either bank, the 1-inch steel cable is

secured with a large concrete mass anchor. Now, let's go for that ride.

(Noise of cablecar going along cable)

As you can see, we are over on the other side of the river. After the momentum of the cablecar stopped,

I purposefully stopped recording.Pulling a manned cableway up one bank of the river can be a pretty

strenuous process, and honestly, I didn't want to embarass myself.

You'll notice we picked up quite a bit of speed as we were coming over to this bank of the river. During a

routine measurement, we wouldn't go nearly that fast. We would stop at 25 or 30 locations across the

river taking depth and velocity readings, noting the distance we've moved across the river. This

information would allow us to compute our discharge measurement. After our measurement was done,

we'd return to the bank that we started from, load up our gear, and hit the road.

(Noise of cablecar going along cable)

My arm was getting a little bit tired as I was pulling myself up to the bank we started on and I thought I'd

take this opportunity to give you this view of our gage house.

This gage house is a 4 foot by 4 foot concrete structure. That round bucket you see on the top is a

precipitation bucket that weighs the amountof precipitation that's fallen into it. We also have an air

temperature sensor at this gage. Inside of the gage house there is equipment with a line attached to it.

That line runs out into the river and it monitors the height of the water above the end of that line.

We collect this gage height information and transmit it by satellite using the antenna that you see on the

top of the structure. This gage height information goes back to our database and is applied to a rating

for discharge that is specific to this site. The gage height and the discharge information for this station

are then reported to the web.

Hopefully you've enjoyed this tour of our cableway and gaging station here on the Carrabassett River. I'd

like to take a moment to remind you that without proper training and experience in both the operation

and inspection of these cableways they can be very dangerous and we ask that you do not damage or

disturb any of the manned cableways that you see across the country that are operated and maintained

by the USGS or any other agency.


Title: USGS Science in Maine - Visit to 01047000


In this video we visit a USGS gaging station on the Carrabassett River near North Anson, Maine, station 01047000. We briefly discuss the manned cableway at the site and highlight some features of the gaging station itself.

Location: North Anson, ME, USA

Date Taken: 8/22/2013

Length: 5:19.03

Video Producer: Nick Stasulis , U.S. Geological Survey

Note: This video has been released into the public domain by the U.S. Geological Survey for use in its entirety. Some videos may contain pieces of copyrighted material. If you wish to use a portion of the video for any purpose, other than for resharing/reposting the video in its entirety, please contact the Video Producer/Videographer listed with this video. Please refer to the USGS Copyright section for how to credit this video.


For more information about this project, visit USGS Science in Maine on Facebook!

File Details:

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Streamgages (Set) RSS Media RSS Monsoon Peak Flow Drone Survey
In: Water collection

Tags: Maine Streamgage


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