20130777 Ver 1_Emails_20141024

Wanucha, Dave
From: Slaughter, Johnathan H
Sent: Friday, October 24, 2014 8:12 AM
To: Andy Williams (And rew .E.Williams2 @usace.army.mil); Wanucha, Dave
Cc: Souther, Zachary S; Johnston, Gregory W
Subject: R -3101, US 21 Alleghany, Stream Crossings
Andy,
Per our previous conversations, one of the primary commitments we had to make on this project was maintaining traffic
on US 21 during construction. This being the primary road in the county makes that understandable. As you already
know, there are a bunch of stream crossings on this project that are deep enough under the road that we can't open cut
the pipe /culvert replacement and still maintain traffic. The plans really don't address this problem. As such, we've had
to pursue bore and jacking many of these new pipes under the road instead. This has slowed down progress and
substantially increased costs but it's the only viable solution.
We were /will be able to slip line some of the existing culverts but in some locations that won't work. At these sites we
have to bore and jack the new pipe beside and parallel to the existing crossing. That will result in losing a little bit of
stream length on one side while gaining a little on the other end. The net gain /loss of stream length should be about 0
feet but the crossing configuration will be slightly different than what's on the plans so we are letting you know. The
affected sites are listed below:
SITE STATION
14
133 +05
22
191 +06
23
223 +15
24
234 +40
41
325 +25
52
416 +07
57
501 +05
1

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