20140090 Ver 2_sediment loss U2925_20150811

Carpenter,Kristi
From:Euliss, Amy
Sent:Tuesday, August 11, 2015 11:06 AM
To:Wanucha, Dave
Cc:Meachum, James O; Cvijetic, Bojan; Guy, Jeremy M; Suggs, Phillip H
Subject:sediment loss U2925 Salem Creek connector
Attachments:south bank Salem Creek @US52.JPG; south bank Salem Creek @US52 2.JPG; north
bank Salem Creek.JPG; south bank Salem Creek @US52 3.JPG
We received 1.65” of rain last night on the Salem Creek Connector project, and lost sediment into Salem Creek. This is
the second loss into Salem Creek. The first being during intense storms on Thursday night. I didn’t report the last one,
as there was no measurable sediment to be removed from Salem Creek. The measures were undermined, so whatever
got in was swept away.

In last night’s rain, measurable sediment is along the edges of the channel. I’ve attached 4 pictures. 3 of the attached
pictures are from the south bank. In these pictures you can see that the silt fence and rock silt screens were washed out
and some material was deposited into the channel. The remaining picture is a view of the north side in which you can
see deposited sediment. I’m not sure how much of this was deposited from the work area, given the color. We’ll
remove what we can when the flow goes down and repair the undermined silt fence. The area under the bridge is very
confined, and it receives a good bit of runoff from existing 52. Also, we have a slope drain to take the water from the
roadway directly to the river (i.e. clean water to clean water), however, it keeps getting moved by people who are riding
through the project. There’s a greenway that’s being relocated during construction; however, the bikes continue to
come through the project, and evidently move it out of the way.

Phil and the designer are out there this morning doing their monthly walk thru. I’ll forward his report when I see
it. We’re also checking to see if he has any additional recommendations.

On a side note, no more sediment has deposited at site 1 where we were having problems before.

Amy Euliss
NCDOT Division 9 Environmental Officer
375 Silas Creek Parkway
Winston Salem, NC 27127
336-747-7802 (work)

Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties.
1