HomeMy WebLinkAbout20160502 Ver 1_Bridge No 40 Blow out pics_20170424Strickland, Bev
From: Thomson, Nicole J
Sent: Monday, April 24, 2017 3:55 PM
To: Wanucha, Dave; 'David.E.Bailey2@usace.army.mil'
Cc: Parker, Jerry A; Kirkman, Christopher D; Fine, Lowell C; Robinson, Stephen J; Whitley,
Kimball
Subject: Bridge No. 40 over SR 1116 (Bishop Rd) in Guilford County
Attachments: Bridge 40 Compliance Doc with pics.docx
Good afternoon everyone —
Please see the attached document that I pulled together. This is for a bridge to culvert replacement on the mentioned
road. The recent rain has swollen Hickory Creek to the point that it has not only overtopped the impervious dikes in
place for the project, it has subsequently moved a concrete barrier. The pictures detail the site as it was this
morning. The contractor has a priority punch list which includes placing larger sized sand bags (the big round ones) in
the "hole" that is noted on the first picture to try and force the water into the diversion pipe. We are also hoping to
keep that bank where it is. On the slope face that is currently exposed, plastic will be laid to prevent any additional
erosion from the expected future rain events in the next day or so. Also note, there is a diversion berm up above that
area which captures any stormflow running down the road; so, the only stormwater hitting that bank is what falls from
the sky.
Several things have gone wrong on this site, not the least of which was a collapse of the near bank at the abutments
(which has now created a safety hazard that needs to be addressed so no one gets hurt or un-alived). The erosion
control measures were installed per plan and were functioning. Everything just was overwhelmed. In the work area,
the forms were laid for the wing walls and the bottom of the culvert so it is our hope that any 57 stone or sediment that
washed is trapped in those forms. We won't have a better idea how bad this is until the rain stops and the water level
drops.
I am not sure how much rain this area received; I'll defer to Chris or Kim to weigh in on the actual number.
In short, the entire work area is flooded and the contractor is working to stabilize/reduce exposure in the work area that
would otherwise be dry.
I'll keep you all posted as the week progresses.
Feel free to give me a call with any questions or concerns.
Nikki
Nicole J. Thomson
Division Environmental Supervisor Assistant
Division Environmental Office
919-754-7806 Mobile
Nithomson2(cDncdot.aov
PO Box 14996
Greensboro, NC 27415-4996
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties.
Bridge 40 on SR 1116 (Bishop Rd) over Hickory Creek in Guilford County
(Please note that all these pictures are from the East side of the creek)
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Looking at work area just below dike; please note the nearside embankment that has pushed forward
into the work area (now a safety hazard and will need to be addressed immediately)
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Downstream end of project area; note the impervious dikes are overtopped here as well; the arrow
points to the excavated slope opposite us — this area will be covered in plastic to prevent any further
sediment loss