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HomeMy WebLinkAbout20050732 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 ) ~p ~~ ~~--~~ ~ ~ 1 ~ ~ ~ P~ L~(~X~- - ~ ~-~ 1 av~9.~~ C~ ~ ~~ ~~. ~ P ~~ ~~ ~~ ~,~~ t a~~ ~ e~ ~ ~ 7 ac. ~~~ ~~ ~ ~ ~' ~ ©~~ . tn,1 ~ ca`7 -~b~ ~~ ~~I s~o..~, .~ L. F ~ , 2~g i.._-r ~„ v9,~5 aC" a- ~ d ado ~ it ~ Co C~ ~~ 3~9 ~~ ©.~''~Qt ac, ~~. Q. GC~COdC~ p JAN ~ 1 ~. ~vd 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) ~ ~ 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 D ~~~~ ~D `~'~`'''~~008 ~~~rrr s~