Old Mill Site on the Saxtons River
1 / 1

Old Mill Site on the Saxtons River Matt Kuhn - PowerPoint PPT Presentation

  • Uploaded on

Old Mill Site on the Saxtons River Matt Kuhn. How has this site changed since the removal of the dam?. Location of mill site. GPS 18 0459115, 4776082 Nad 27. Historic Photograph. Modern Photograph. “Covered Bridge Near Mill” This photo Shows a man standing

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about ' Old Mill Site on the Saxtons River Matt Kuhn' - rafi

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Old Mill Site on the Saxtons River

Matt Kuhn

How has this site changed since the removal of the dam?

Location of mill site

GPS 18 0459115, 4776082 Nad 27

Historic Photograph

Modern Photograph

“Covered Bridge Near Mill” This photo Shows a man standing

on a muddy road leading to a covered bridge. On the opposite

side of the Saxtons river is a mill. A mill dam can be seen to

the right, as well as, a mill pond spilling over it. This road

used to be the entrance to town and this old wool mill was

a large part of the towns daily life.

This photograph shows the same view in the present. The

woman standing in the photo is standing in approximately the

same spot as the man in the historic photo. The bridge, mill

and dam are all gone. The water level above were the dam

used to be is much lower than before (you can barely make

out the river down below)

Field Data

Velocity (float method)

10 m / 7.2 s = 1.4 m/s

Total Area

10.06 m squared


10.06 m squared * 1.4 m/s = 14.08 m cubed/s


0.001 m/m

Average Depth

1.02 m

Wetted Perimeter


Manning’s n

n = [10.06 m^2 x (0.84 m)^2/3 x (0.01)^1/2] / 14.08 m^3/s

n = 0.06

Sediment Type

River worn rocks mostly metamorphic

Channel Type

mixture of alluvial and bedrock, pool-riffle profile

Channel Geometry

Located on a river bend. Cut-bank, point-bar system. Outside bank eroded

downward due to increased velocity. Point-bar consists mainly of river worn

pebbles and cobbles.

This is a shot looking from the other side of the river used to be.

the bridge abutment for the covered bridge can be seen in the

center of the photo, built on the bedrock of the river bank.

This is part of the foundation of the old mill. I believe that as I took

the photograph, I was standing in a water channel and the lower

level seen ahead is where a water wheel was located.

Answering the question

Changes to human elements

The most obvious change is the absence of the bridge, mill and dam. The entrance into town is now in a different location further down

the river. All that is left of the bridge is the two supports on either side of the river. The foundation of the mill is mostly intact. The dam

Itself is completely gone. I could find no evidence for it ever existing except for the photograph.

Changes to the river.

The river channel itself is it the same place. It still runs in between the bedrock that the bridge supports were built on. When the mill dam

was removed it changed this area drastically. The elevation of the river above the mill dam is now much lower. When the dam was

removed the river down-cut through the mill dam deposits, eventually returning to it’s original level and consisting of river worn rocks.

Changes to the environment around the site.

When the historic photograph was taken this area was a zone of extreme human impact. The along the river were clear-cut causing

greater sediment load entering the river. The presence of the mill impacted the biota of the river heavily. Today this is the site of

structural ruins In a dense forest, frequented only by pot smoking kids or local drunks.

Channel dimensions were estimated for the river was too high and the

water too cold. All measurements are in meters. The cut-bank can be

seen on the right and the point-bar can be seen on the left. The two

Vertical sections represent the bedrock banks and the bridge supports

that remain today.

Soil profiles

Any sort of soil profile was hard to find due to the presence of bedrock.

I was able to get a decent profile upstream where the mill pond would

have been located. The soils in this area were all silts and sands

covered by a layer of river channel deposits which is what you would

expect to find.