20130223 All Versions_U-2524CD sediment losses_20160804

Wrenn, Brian L
From:Wrenn, Brian L
Sent:Thursday, August 04, 2016 4:55 PM
To:Parker, Jerry A; Snell, William H
Subject:U-2524CD sediment losses
Bill and Jerry,
After reviewing the rainfall data and ESC maintenance records, I’ve decided against issuing a compliance letter for the
stone and sediment losses at the Drawbridge Pkwy bridge site. Despite the previous losses at this site, it is difficult to
manage a 2.5” rainfall event in a short period of time. That being said, any further losses at this location will be heavily
scrutinized with little consideration of rainfall amounts except in extreme events. I do want to discuss some of the
recordkeeping practices for this site with you. I have a couple of suggestions that will provide some clarity on ESC
maintenance activities on the project, but it’s probably easier to discuss these in person. Are you available next Tuesday
(8/9) after lunch? I can come out to the site or wherever is convenient to discuss the records.

Brian L. Wrenn
Transportation Permitting Unit
Division of Water Resources
919-707-8792
[e-mail]

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