20050732 Ver 01_More Info Received_20080111

Impact Previously
Approved Stream Proposed
Stream Impact Net
Difference previously Approved Proposed Wetland
Net Difference (ac)
Wetland Impact (ac) Impact (ac)
[m act F F LF
Utility Crossing Section 7 20 0 -20 0.1230 0.2603 +0.1373
(temporary)
Crossing C 0 0 0 t 0.0002 0.0006 temp/ + 0.0006 temp/
( ermanent) 0.001 erm + 0.0008 erm
Crossing K 150 0 -150 0.2320 0 -0.2320
( ermanent)
Crossing Q 0 0 0 0 0.0002 + 0.0002
( ermanent)
Crossing R 0 0 0 0 0.0005 + 0.0005
( ermanent)
820
Totals (800 perm/ 906 +86~"' 0.3585 0.2783 -0.0802
20 tem )
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DENR • WATER QUALITY
WETLANDS AND STORMNNITER BRANCH

Previously June 2007
October 2007 June 2007 October 2007
Approved
NCDOT's Reason far Rejection of Roadway Required Modification
Surveyed Modification Surveyed
Impact Stream
Design Redesign of Proposed
Revision Stream Proposed Revision
Impact
L Crossing Stream Impact
~L~
Impacts (LF) Wetland
Impacts (FTZ) Wetland
Impacts (FTZ)
~
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NC DOT required the roadway cross section to Public and private
be modified since they prohibit waterlines and utility corridors
irrigation lines from being installed under had to be shifted
pavement. The only utility they to the outside
238
Crossing F apprehensively allowed to be under pavement edges of the (l97 LF

(permanent) 155 was sanitary sewer. public rights-of- 234
permanent; 4l LF 0 0
way, thus temporary)
NC DOT rejected vertical extensions to requiring a wider
headwalls or endwalls beyond the standard NC fill impact to
DOT specified height to minimize the impact Crossing F.
area.
NC DOT required the roadway cross section to Public and private
be modified since they prohibit waterlines and utility cotridors
irrigation lines from being installed under had to be shifted
pavement. The only utility they to the outside
apprehensively allowed to be under pavement edges of the
was sanitary sewer. public rights-of-
way, thus
Detailed hydraulic modeling based on NC requiring a wider 297 (271 LF
Crossing G
238 DOT requirements resulted in Culvert G to be fill impact to
302
permanent; 26 LF
415
415
ertnanent
~ ) u sized from a 54-inch m e to a 60-inch m e
p p p p p' Crossin G.
g temporary)
NC DOT rejected vertical extensions to The increased
headwalls or endwalls beyond the standard NC pipe size required
DOT specified height to minimize impact area. to meet NC DOT
standards resulted
in a wider fill
impact to
Crossin G.
NC DOT required the roadway cross section to Public and private
be modified since they prohibit waterlines and utility corridors
irtigation lines from being installed under had to be shifted
pavement. The only utility they to the outside 312 (262 LF
Crossing H 166 apprehensively allowed to be under pavement edges of the 279 permanent; 50 LF 0 0
(permanent) was sanitary sewer. public rights-of-
temporary)
way, thus
NC DOT rejected vertical extensions to requiring a wider
headwalls or endwalls beyond the standard NC fill impact to
DOT s ecified hei ht to minimize im act area. Crossin H.
NC DOT required the roadway cross section to Public and private
be modified since they prohibit waterlines and utility corridors
itrigation lines from being installed under had to be shifted
pavement. The only utility they to the outside
apprehensively allowed to be under pavement edges of the
was sanitary sewer. public rights-of- 114 (83 LF 946 (95 sq. ft.
Crossing I 91 way, thus 91 permanent; 31 LF 13 permanent;
(permanent) Detailed hydraulic modeling based on NC requiring a wider temporary) 85l sq. ft.
DOT requirements resulted in Culvert I to be fill impact to temporary)
upsized from a 48-inch pipe to a 54-inch pipe. Crossing I.
NC DOT rejected vertical extensions to
headwalls or endwalls beyond the standard NC
DOT s ecified hei ht to minimize im act area.
961 (813 LF L,361 (510 sq.
Totals 650 906 permanent; 148 428 ft. permanent;
851 sq. ft.
LF temporary)* temporary)
* the net increase of permanent stream impacts is 163 LF
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