20071134 Ver 5_Email_20091008

Wrenn, Brian
From: Parker, Mike
Sent: Thursday, October 08, 2009 2:49 PM
To: Wrenn, Brian
Subject: FW: R251 BA permit modification request
Brian, this is an FYI. I know it may be hard for you but I would like for you to come to the
meeting. Mike
-----Original Message-----
From: Mckinney, Randall I [mailto:[e-mail]]
Sent: Thursday, October 08, 2009 10:14 AM
To: Mike Parker ([e-mail]); Marella [e-mail]; Chambers, Marla I.; Bryan,
Roger D; Henegar, Randall C; Tipton, Ricky A; Mckinney, Randall 3; David.K.B_aker
Subject: R2518A permit modification request
Ladies and Gentlemen
The current plans for R2518A show a wall to be constructed at stations 100+80 - 103+80. In
the original planning for the project this was to be a small wall approximately 10-20 feet. in
height and be used to simply catch the toe of the fill in this area. As the design progress
proceeded the wall became much larger. Due to existing soil conditions,,.design _criteria,.etc
when the wall design was completed it was required to be much larger than first envisioned...
The wall is currently 1000' long and reaches heights of 100+/- feet. Actually making it the
highest MSE wall in the state. We are requesting to delete the wall and,,pipe the section of,
stream. The three driving factors in this is cost, safety, and maintainability. First on
the issue of cost. By deleting the wall there will be a net savings of 4,358,000 dollars.
Second on safety there are current soil conditions that have raised concerns about settlement
of the wall during and after construction. The contractor who is responsible for the wall
design is concerned that by their calculations the wall will settle 12-18 inches. Lastly,
from a long term maintenance stand point there will not be a way to access the face of the
wall except through private property or via the top somehow.
This is a short summary of the history behind the request. NCDOT has a design revision and a
cost analysis for this request. Since this is an on going project the contractor is in the..
process of getting his design, materials, etc assembled for the wall. I have talked to David
Baker about this permit modification and he thinks since it is large impact modification that
we should have a meeting to get each of your thoughts, concerns, etc. about this issue before
the Corp issues a modification. I know from past modifications that it takes some time
simply to get the paperwork through the system and officially sent out, What I would like to
come out of our meeting is that everyone's concerns, questions, thoughts, etc are answered..,
and at the end if everyone is in agreement that the modification can proceed on I can send
the contractor a cease letter stopping the work on the wall. This will stop the incurring of
cost and allow them to plan accordingly.
Having said all this and time being of importance I would like to set up a meeting as soon as
possible, hopefully next week. If each of you could look at your calendars and see if you,
could meet any day next week at my office except Wed. ( have to testify in court). If Wed is
the only possible date let me know that as well and I will see what I can work out. I think
it will be a short meeting. I know that some of you are not local and I can set up a way to
teleconference with you to save you some drive time or if you will be out of town. If you
could respond back and give me some times I will set a time and date. If you want to call
and ask questions I would be glad to answer.
Thanks for you attention in this matter.
1
North Carolina Department of Transportation
Preliminary Estimate
TIP No. R-2518A
Route
From Removing Retaining Wall
Typical Section -I. Sta. 100+60 to 104+00
Difference in Quantities +Mob = (Contract Cost)
Prepared By: Doug Kretchman, EIT
Requested By: Thad Dunean, PS
Priced By: Doug Lane
County: Madison/Yancey
CONTR. COST
-$4,358,111101
9/25/09
9/28/09
10/2/09 Corrected MSE Wall Quantity
Line
Item
Des Sec
No.
Description
Quantity
Unit
Price
Amount
Additional Items
Clearing and Grubbing 0.6 HA $ 30,000.00 $ 18,()0().00
Drainage Ditch Excavation 900 CM $ 5.49 $ 4,941.00
Spring Box 1 Each $ 600.00 $ 600.00
Foundation Cond.Mat, Minor Stns 140 MTN $ 27.78 $ 3,889.20
300 MM CSP 31.2 M $ 106.00 $ 3,307.20
900 MM CSP 26.4 M $ 233.91 $ 6,175.22
1700 MM ACSP 10 GA 345.6 M $ 700.00 $ 241,920.00
900 MM CL IV RCP 2l.6 M $ 265.69 $ 5,738.90
Shoulder Berm Gutter M $ 67.52 $ 23,632.00
Natural Rock Energy Dissi ator EA $ 14,514.61 $ 14,514.61
Rock Cross Vane d EA $ 7,500.00 $ 7,500.00
CI. 1 Ri Ra MTN $ 44.57 $ 20,947.90
Filter Fabric for Draina e SM $ 2.79 $ 3,822.30
Endwall CM $ 1,230.42 $ 3,691.26
Steel Beam Guardrail 93 M $ 57.76 $ 5,37 168
Matting for Erosion Control 20,000 M2 $ 2.19 $ 43,800.00
Seeding and Mulching 2 1TA $ 4,669.46 $ 9,338.92

Power Pole Relocation 2 Each $ 5,000.00 $ 10,000.00
R/W Acquisition I LS $ 20,000.00 $ 20,000.00
375m+94m=469 Miti,,ation $688/117=$2,260/M) 469 M $ 2,260.00 $ 1059,940.00
Contractor's Prior En r Cost for MSE Wall 1 LS $ 100,000.00 $ 100,000.00

Note: Additional EW Covered B Waste

Deleted Items
Generic Grading Separation Fabric for Rock -8,000 M2 $ 3.43 $ (27,440.00)
Generic Grading CI IV Material for Rock -13,500 MTN $ 5.57 $ (75,195.00)

Type T Cone Barrier -340 M $ 427.96 $ (145,506.40)
Moment Slab -I LS $ 70,000.00 $ (70,000.00
Chain Link Fence, 1200 MM Fabric -340 M $ 23.86 $ (8,112.40)
Line Post -93 EA $ 32.23 S (2,997.39)
Terminal Post -3 EA $ 155.89 $ (467.67)
MSE Retaining Wall -4,152 SM $ 1,306.58 $ (5,424,920.16)
Guardrail Anchor, Type B-77 -2 EA $ 1,427.77 $ (2,855.54)
Class B Rip Rap -1.8 MTN $ 41.92 $ (75.46)

I LS
Mobilization 5% 1 LS

Note:
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