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SCA Survey
--Major Problems identified in Northwest Branch--

Northwest Branch watershed - 8
We encourage citizens to visit the sites in person in order to see the damage firsthand. Because the stream changes constantly, it may have features differing from pictures shown on this website.
Mouse over the numbers in the map below, then click it to enlarge the picture.

217106 (Exposed Pipe -manhole stack) (N39.0280833, W77.0005167)

Site#

Date

Location of Pipe

Type

Diameter (in)

Length (ft)

Purpose

Discharge

217106

4/12/2005

exposed manhole

concrete+brick

36

sewage

no

This is not so severe but is in the process of crumbling.

217108 (Exposed Pipe -manhole stack) (N39.02845, W77.0013833)

Site#

Date

Location of Pipe

Type

Diameter (in)

Length (ft)

Purpose

Discharge

217108

4/12/2005

exposed manhole

concrete+brick

48

sewage

no

This manhole stack is in the middle of "ghost" stream (gully). The ghost stream appears when it rains.
It assaults this manhole stack. On sunny days it is just a very small stream.

Cover shot. The stack can be seen
in the middle of the small stream.

The evidence of attack from stormwater.
There is a crack in it.

Being undermined

217128 (Fish Barrier) (N39.0305333, W77.00635)

This dam is called Burnt Mills Dam.

The height is approximately 40 feet. No fish can go upstream from here.
However, there are some natural fish barriers downstream from this dam.
So, even if we remove this dam the effectiveness of the fish barrier removal may not be so significant.

Burnt Mills Dam. A white dot on the dam is a human.

This dam is silted up.

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Special thanks to Clair Garman of the Friends of Sligo Creek for his help in editing this page. He is also a member of the Neighbors of Northwest Branch.