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HomeMy WebLinkAboutR4440 y .w STA7F ° 4aN d y. v., STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION MICHAEL F. EASLEY GOVERNOR MEMORANDUM TO: File LYNDO TIPPETT SECRETARY FROM: Bryan Kluchar, P.E. Project Development and Environmental Analysis Branch SUBJECT: TIP Project Number R-4440 NCDOT Division 14 SR 1364 and SR 1114 Improvements (Needmore Road) From SR 1369 (Tellico Road) in Macon County to existing pavement in Swain County State Project Numbers 14C.056010 and 14C.087019 WBS Number 35597.1.1 Concurrence Point #2 and Field Meeting Minutes Two Concurrence Point #2 meetings were held for the project. The first meeting was held in Raleigh on September 20, 2005 in the Board Room of the Transportation Building. The second concurrence meeting was held in Bryson City at the Southwestern Community College's Swain Center (SCC) on December 13, 2005. The second meeting was held in conjunction with a field review meeting. FIRST CONCURRENCE MEETING The following people were in attendance at the September 20, 2005 meeting: September 20, 2005 Angie Pennock - USACE - videoconference Keith Paschal - NCDOT Structures Marella Buncick - USFWS - videoconference Ryan Mullins - NCDOT Hydraulics Christopher Militscher - USEPA Andrew Nottingham - NCDOT Hydraulics Harold Draper - TVA - videoconference Mark Staley - NCDOT Roadside Environmental Brian Wrenn - NCDENR DWQ Roy Shelton - NCDOT PDEA Marla Chambers - NCWRC Teresa Hart - NCDOT PDEA Sarah McBride - NCDCR SHPO Ed Lewis - NCDOT PDEA HEU Joel Setzer - NCDOT Div 14 - videoconference Tim Gardiner - NCDOT PDEA HEU Jamie Wilson - NCDOT Div 14 - videoconference Shane Peterson - NCDOT PDEA HEU Paul White - NCDOT Div 14 - videoconference Mary Pope Furr - NCDOT PDEA HEU Mark Davis - NCDOT Div 14 - videoconference Jennifer Cathey - NCDOT PDEA HEU Brian Burch - NCDOT Div 14 - videoconference Chris Underwood - NCDOT PDEA NEU Jody Kuhne - NCDOT Div 14 - videoconference Linda Fitzpatrick - NCDOT PDEA NEU Richard Hadison - NCDOT Div 14 - videoconference Linwood Stone - NCDOT PDEA Roger Thomas - NCDOT Roadway Design Karen Reynolds - NCDOT PDEA Mike Little - NCDOT Roadway Design Bryan Kluchar - NCDOT PDEA Brian Mayhew - NCDOT Traffic Safety MAILING ADDRESS: TELEPHONE: 919-733-3141 LOCATION: NC DEPARTMENT OF TRANSPORTATION FAX: 91 9-733-9794 TRANSPORTATION BUILDING PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS 1 SOUTH WILMINGTON STREET 1548 MAIL SERVICE CENTER WEBSITE. WWW.DOH.DOT.STATE.NC.US RALEIGH NC RALEIGH NC 27699-1548 September 20, 2005 meeting handouts included an agenda, aerial mapping, and acid rock drainage information (provided by Jody Kuhne). A video of the project area was presented. During the concurrence meeting, the videoconference connection to Asheville was intermittent resulting in approximately 45 minutes of lost meeting time. 1. Purpose of the Meeting To reach consensus on the alternatives to be studied and carried forward 2. Project Description • SR 1364 and SR 1114 (Needmore Road) is an unpaved secondary road located along the Little Tennessee River in Macon and Swain Counties. • Project limits extend from SR 1369 (Tellico Road) in Macon County to the existing pavement in Swain County. Total project length is approximately 3.7 miles. • The Purpose and Need for the proposed project is to improve the quality of travel for local residents that currently use Needmore Road; reduce existing sedimentation from Needmore Road into the Little Tennessee River; avoid or minimize adverse impacts to the existing high quality natural resources including but not limited to water quality, habitat and vegetation, and reduce existing maintenance costs associated with Needmore Road. 3. Current Schedule State Environmental Assessment/FONSI: October 2006 Construction: Sections A, B, and D-2007 Section C-Post Year 4. Constraints • Chris Underwood identified the Little Tennessee River as critical habitat for the federally protected Spotfin chub, Appalachian elktoe, and Littlewing pearly mussel. • Wetland #1 is located near the northern terminus of the project between Needmore Road and the Little Tennessee River. • The existing right of way for the road is maintained from ditch line to ditch line. • Jody Kuhne provided information on Geotechnical "hot rock". Since there are no alternates selected for study, no excavation quantities of hot rock are available. There was concern for any excavated hot rock entering the Little Tennessee River. Brian Wrenn will provide hot rock information for the Murphy Bypass project for informational purposes. • Keith Paschal indicated Bridge 78 over Tellico Creek is not scheduled for replacement as part of the project. It has 10 years of remaining life. • Mike Little indicated that AASHTO low volume standards allow flexibility in design. The typical section could include an 18-foot travelway from shoulder to shoulder. Division 14 Standards recommend a minimum lane width of 9 feet with 2 foot usable shoulder unless guardrail is needed. • Portions of the road are prone to flooding. Needmore Road was damaged by Hurricane Ivan in 2005. • Brian Mayhew presented the 3 year crash history of the road. There were 5 reported crashes of low severity resulting in a crash rate above the statewide average, but not above the critical rate. From his expert opinion perspective, he made the following observations: 1. Low severity crashes are reflective of low vehicle speeds. 2. Paving alone will not improve the safety of the road. 3. Signing and lane markings will be needed. 4. Narrower lanes with wider shoulders improve safety. 5. Even if improvements are made to Needmore Road, the number of crashes will likely remain the same. • Shane Peterson provided Archaeological information. The fish weir within the Little Tennessee River, near Tellico Creek, is the only site considered eligible for the National Register of Historic Places. The Yellow Bear and Oo-San-Ter-Take Reservations date back to the early 1800's and are located near Tellico Creek. • Jennifer Cathey provided information on the Tellico Creek Rural Historic District. The district is considered eligible for the National Register of Historic Places. • The NCWRC will be developing a Management Plan for the Needmore Tract; however, there is no target date for completing the plan. The first step in developing the plan is getting recommendations from Natural Heritage. `Campsites along Needmore Road have already been blocked off. Ultimately, a campsite may be developed somewhere in the Needmore Tract. The NCWRC recommends pave in place with warning signs and other means to slow traffic. 4. Other Items Because of time constraints the merger team suggested meeting in the field to view the project area and then continuing the concurrence meeting nearby. FIELD REVIEW The field review meeting was held on December 13, 2005. The meeting began at 9:00 am in Macon County. The following people attended the field meeting and subsequent concurrence meeting. December 13, 2005 Steve Lund - USACE Paul White - NCDOT Div 14 Marella Buncick - USFWS Mark Davis - NCDOT Div 14 John Fridell - USFWS Owen Anderson - NCDOT Div 14 Christopher Militscher - USEPA Jody Kuhne - NCDOT Geotechnical Harold Draper - TVA Mike Little - NCDOT Roadway Design Brian Wrenn - NCDENR DWQ Keith Paschal - NCDOT Structures Marla Chambers - NCWRC Andrew Nottingham - NCDOT Hydraulics Joel Setzer - NCDOT Div 14 Linwood Stone - NCDOT PDEA Jamie Wilson - NCDOT Div 14 Bryan Kluchar - NCDOT PDEA 1? I fp The field review began at the southern terminus of the project at the intersection of Needmore Road and SR 1369 (Tellico Road). The existing width of Needmore Road was measured at various locations. The measurements represent the approximate width of the road, not including shoulders. Stationing is referenced to the aerial mapping distributed with the concurrence meeting information. • Needmore Road @ Tellico Road (Station 204+50): Width = 16 feet A f Il .r z i'. . _.a' try WY • Needmore Road @ Bird Branch (Station 194+50): Width 16 feet Photo looking South Steep Slope on west side Bird Branch parallels Needmore Road on east side • Bridge over Tellico Creek (Station 178+30): Total horizontal clearance = 19 feet-1 inch Photo looking North Discussed if existing bridge should be replaced as part of the improvements. Determined that the bridge will not be replaced when developing alternates. • Needmore Road @ High Lonesome Road (Station 177+00): Width =over 18 feet • Needmore Road @ Ledbetter Branch (Station 117+00): Width = 18 feet - 6 inches Photo looking East Waterfall just upstream • Needmore Road @ drainage pipe (Station 103+00): Width = 17 feet Photo looking West Discussion focused on hot rock options including shotcrete which is a type of concrete applied directly to the surface of the rock face (similar to forming the walls of a swimming pool). If an alternate impacts the hot rock, additional width (minimum 5 feet) is needed to construct a catch basin/ditch for treatment and neutralization. No hot rock waste sites should be located within the Needmore 1 ,L. ", i j 11 • it Tract. • Needmore Road @ Rock Face (Station 92+50): Width = 16 feet Photo looking East Narrowest width is at Station 93+00 = 14 feet Construction of 1/4:1 slope may be possible Endangered Appalachian elktoe shell found on river rocks below the road. • Needmore Road @ Station 78+00: Width = 19 feet • Needmore Road @ Loudermilk Creek (Station 64+00): Width = 15 feet • Needmore Road @ Loudermilk Creek and unstable rock (Station 64+00): ' Photo looking Northwest. Mountain on left contains very hot and unstable rock. Geotechnical recommends not impacting rock from Station 55+00 to 65+00. Little Tennessee River is near elevation of road. Narrowest width = 14 feet at Station 60+00 • Needmore Road @ Wetland (Station 40+00): Width = 16 feet Photo looking Northeast into wetland from road Rock on West side of road is not hot SECOND CONCURRENCE MEETING The second Concurrence Meeting was held immediately following the field review at the SCC Swain Center located on US 19/74 west of Bryson City. The following was discussed: 1. When responding to area emergencies, both Macon County and Swain Counties have medical centers (hospitals) to treat patients. 2. The pave in place alternate can include speed limit signs as well as curve warnings and other ways to calm traffic. 3. An alternate route to Needmore Road is NC 28, which is located on the opposite side of the Little Tennessee River. '1 0 4. Brian Wrenn indicated the AASHTO Standard Alternative and Low Volume Road Alternative would not meet the purpose and need of the project because they would place fill into the Little Tennessee River. Joel Setzer suggested combining the AASHTO Alternatives into one alternative and varying the width between 14 and 18 feet to meet the purpose and need. 5. The USFWS suggested replacing the bridge at Tellico Creek as part of the project., The bridge has a remaining life of 10 years and the replacement is not included in the scope of the project. Additionally there is no funding for replacing the bridge with the project. Therefore, the existing bridge will not be replaced. 6. John Fridell suggested adding an alternative on new location upslope from Needmore Road. Marla Chambers indicated a new location project would still have problems associated with road improvements. Building a new road on the steep mountainside would result in high environmental impacts. The Appalachian Trail is located on the ridge just west of Needmore Road. Therefore, a new location alternative will not be considered. 7. Alternatives Carried Forward A. No Build Alternative - This alternative only maintains the existing gravel/dirt road. Maintenance includes the cost of adding gravel. Information on flooding is also needed. B. No Pave with Selective Improvements Alternative - Selective improvements include drainage, buffer, and maintenance issues. Since these improvements are subject to interpretation, an itemized list (including cost) is needed for the next concurrence meeting. C. Pave in Place -18 feet Maximum Alternative - This alternative only paves the existing roadway width of Needmore Road. Although the existing roadway width generally varies from 14 to 19 feet, the maximum pavement width will be no wider than 18 feet. D. Pave in Place - Improve where you can Alternative - The improvements for this alternative include paving the existing variable roadway width as well as improving the road and shoulders without impacting hot rock or placing fill into the Little Tennessee River. Stream and sensitive area impacts would be minimized. E. Division 14 Secondary Road Standards with Design Exceptions Alternative - This alternative combines Division 14 Secondary Road Standards with design exceptions. Division 14 Secondary Road Standards include a minimum roadway width of 18 feet with shoulder widths of 4 feet and 6 feet. Therefore, the total typical section width for this alternative is 28 feet. The design exceptions can reduce the shoulder widths as well as the roadway width below 18 feet; however, the roadway width will not be reduced to 14 feet. The merger team and meeting attendees concurred with the above alternatives carried forward (Concurrence Point #2). The next concurrence meeting will discuss the impact quantities associated with the alternatives. Alternatives can also be eliminated at the next meeting.. I - --- --------------------- -- M* I• s-- -?-- -S??-cis-- ?. - ?- - ?-?---1--____?n?s----?---,?--??? 1---?,?f-------------- ---- -P 4- N JfAl - --- i • 1 -_?? _r? ?? ate, -?- - 6°?'? - ?? ?- ????--- -?-,?--??=-??'? - ?0--?-?? se-Lf G --- --- -------- ------- -- d?-- J -- - - - - - -- - --- - - - --- --- -- - --- • ---?-, • 71 ?I- ?- ?? ?. rQ J RESE ' R?IT l Jr ` INANTIAI ,9 1114 i ' ? 1113 .k 1114 DEHART ?e BALD -? '- N TI ON L 1134 \1135 ? 131 130 SH E KNOB MICA ?? FORES 1133 p o A 1311132 1133 ze ^' PEAKS BAL . tx /^ PINACL KNOB m _ C 0 9:00 a.m. Meet at intersection of SR 1364 (Needmore Rd) and SR 1369 (Tellico Road) near Stiles (See Macon County map) Directions from US 19/74 in Swain County: South on SR 1113 to SR 1114 continue south to end of project at SR 1369 in Macon County. 9:00 a.m. Meet at intersection of SR 1364 (Needmore Rd.) an d SR 1369 (Tellico Rd.) near Stiles. From Franklin: NC 28 north then left onto SR 1370 and over Little Tennessee River. Turn right and continue to intersection of SR 1364 (Needmore Road). BALD ? ? r PINNACLE ?' ? 1364 FWOB 135 /' G{N OQ ` \ `•x LL ? - "? 1 360 ` 1424 ` a ` -163 - 28 136 10 1 1455 1361 1473 s 1 \ 11 2 m 1357 1348 0 l 1353 1351 1341 . . 1364 m e e 5 0 1 j.2 1352. Liberty Ch 1370 s 3 a L ;;^a 8 g o P " 1354 Lea"rmon 4 3 - _ 44 - 1367 9 1369 Sflles _ - X1 1353 <?v, •e 1 1- 1369 m 353 ) 1356 1355, 013 +? ` 49 1345 Tellic rte` 1372 , 1370 Etna _ ,erg S ' 472 ' m1366 , ., - e w 1368 - e 1 14 720 e 0 341 t ?CO"oe ? 56 29 F , 1371 / .+ L1 , Cakr 1445 1459 s 4 e pgs , 1340 loll +s c \ ry W Mill 2 1 43 1 7 4 1339 134 / 1 _ a MACON COUNTY •'1372 ` 453' 467 1338 LYLEIQrt a 1474 ' '145e 13 +R 0 1376 Rw 1334 a g 388 1 /ROPER KNOB 1 133: IPM 1427 1 4 s 29 ° 139f? ' 1390 - 1^ 2 1421 m 0 1377 a s 1378 a 1335 . "VV 1 c , - 1335 - r ?? - 1428 J i ' 1393 1 1387 ? Macon county carport d' ` r - r O/ _ Dean 396 1 r , 13 7 1 l ' ?l / RIDGE -, TRIMONT / 1 1 Franklin 4 • y 11.1 > ` , n POP. 3,58 • . %- r STATE r 23 64 f % SITE VISIT AND CONCURRENCE POINT 2 ALTERNATIVES CARRIED FORWARD TIP Project Number R-4440 SR 1364 and SR 1114 Improvements (Needmore Road) From SR 1369 (Tellico Road) in Macon County to existing pavement in Swain County State Project Numbers 14C.056010 and 14C.087019 NCDOT Division 14 December 13, 2005 AGENDA 1. Purpose of the Meeting • Provide the Merger Team an opportunity to visit the project area and discuss alternatives on-site. • To reach consensus on the alternatives to be studied and carried forward 2. Project Description • SR 1364 and SR 1114 (Needmore Road) is an unpaved secondary road located along the Little Tennessee River in Macon and Swain Counties. • Project limits are from SR 1369 (Tellico Road) in Macon County to existing pavement in Swain County. Total project length is approximately 3.7 miles. • The Purpose and Need for the proposed project is to improve the quality of travel for local residents that currently use Needmore Road; reduce existing sedimentation from Needmore Road into the Little Tennessee River; avoid or minimize adverse impacts to the existing high quality natural resources including but not limited to water quality, habitat and vegetation, and reduce existing maintenance costs associated with Needmore Road. 3. Current Schedule State Environmental Assessment/FONSI: October 2006 Construction: Sections A, B, and D-2007 Section C-Post Year 4. Environmental and Design Constraints • Little Tennessee River with federally protected species: Spotfin chub, Appalachian elktoe, Littlewing pearly mussel • Wetland #1 • Geotechnical "hot rock" • Archaeology and Historic Architecture • Bridge 78 over Tellico Creek • Characteristics of the road - maintained right of way from ditch line to ditch line • Road flooding 5. Alternatives Carried Forward These alternatives represent a starting point for the discussion: • No Build • Pave in place • Pave in place with selective improvements • AASHTO very low-volume local road design • Division 14 secondary road standards 6. Other Items AGENDA Western Concurrence Meeting Tuesday, September 20, 2005 Board Room, Transportation Building Raleigh, North Carolina 27610 0<? SFp O? ?YFT??? FNR ?2 SgNp ?.qT ??? RgNV cy 10:30AM - Bryan Muchar, NCDOT PDEA TIP R-4440, SR 1364 and SR 1114 Improvements (Needmore Road) and From SR 1369 in Macon County to existing pavement in Swain County. Division 14 Team Members Bryan Kluchar, NCDOT PDEA Steve Lund (for Angie Pennock), USACE Marella Buncick, USFWS Chris Militscher, USEPA Harold Draper, TVA Marla Chambers, NCWRC Brian Wrenn, NCDWQ Sarah McBride, SHPO Matt Roark, Southwestern RPO (non-signatory) NCDOT Technical Support Staff and Other Agency Staff: Jamie Wilson, Division 14 Mark Davis, Division 14 Roger Thomas, Roadway Design Mike Little, Roadway Design Andrew Nottingham, Hydraulics Keith Paschal, Structural Design Jody Kuhne, Geotechnical, Asheville Brian Mayhew, Traffic Safety Linwood Stone, PDEA Eric Midkiff, PDEA Chris Underwood, PDEA NEU Shane Petersen, PDEA HEU Jennifer Cathey, PDEA HEU Tim Gardiner, PDEA HEU * The purpose of this meeting is to achieve Concurrence Point 2. STATE OF NORTH CAROLINA o? SFp Vl D wFrca,?osNR. w 2 200? aNOS o'i, e DEPARTLVIFNT OF TRANSPORTATION *09 MICHAEL F. EASLEY LYNDO TIPPETT GOVERNOR SECRETARY August 23, 2005 MEMORANDUM TO: Steve Lund, US Army Corps of Engineers Marella Buncick, US Fish and Wildlife Service Chris Militshcher, US Environmental Protection Agency Harold Draper, Tennessee Valley Authority Marla Chambers, NC Wildlife Resources Commission Brian Wrenn, NCDENR-DWQ /Wetlands Sarah McBride, NC Dept of Cultural Resources - HPO Matt Roark, Southwestern RPO FROM: Bryan Kluchar 64c-- Project Development and Environmental Analysis Branch SUBJECT: TIP Project Number R-4440 SR 1364 and SR 1114 Improvements (Needmore Road) From SR 1369 in Macon County to existing pavement in Swain County State Project Numbers 14C.056010 and 14C.087019 NCDOT Division 14 Concurrence Point 2 You are invited to attend a concurrence meeting for the subject project on September 20, 2005 in the Board Room of the Transportation Building in downtown Raleigh. You will be notified of the meeting time at a later date. The purpose of this meeting (Concurrence Point 2) is to decide on the alternatives to carry forward for more detailed study. The proposed project is located along SR 1369 and SR 1114 (Needmore Road) in Macon and Swain Counties. The project is included in the NCDOT 2006 to 2012 Transportation Improvement Program and proposes to improve the unpaved secondary road located adjacent to the Little Tennessee River. An agenda and constraints map is attached for your review and reference during the meeting. If you prefer to video conference from a remote location, please contact me at your earliest convenience at (919) 733-7844 extension 216. MAILING ADDRESS: TELEPHONE: 919-733-3141 LOCATION: NC DEPARTMENT OF TRANSPORTATION FAX: 919-733-9794 TRANSPORTATION BUILDING PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS. 1 SOUTH WILMINGTON STREET 1548 MAIL SERVICE CENTER WEBSITE. WWW.DOH.DOT.STATE.NC.US RALEIGH NC RALEIGH NC 27699-1548 CONCURRENCE POINT 2 - ALTERNATIVES CARRIED FORWARD TIP Project Number R-4440 SR 1364 and SR 1114 Improvements (Needmore Road) From SR 1369 (Tellico Road) in Macon County to existing pavement in Swain County State Project Numbers 14C.056010 and 14C.087019 NCDOT Division 14 AGENDA 1. Purpose of the Meeting To reach consensus on the alternatives to be studied and carried forward 2. Project Description • SR 1364 and SR 1114 (Needmore Road) is an unpaved secondary road located along the Little Tennessee River in Macon and Swain Counties. • Project limits are from SR 1369 (Tellico Road) in Macon County to existing pavement in Swain County (See Figure 1). Total project length is approximately 3.7 miles. • The Purpose and Need for the proposed project is to improve the quality of travel for local residents that currently use Needmore Road; reduce existing sedimentation from Needmore Road into the Little Tennessee River; avoid or minimize adverse impacts to the existing high quality natural resources including but not limited to water quality, habitat and vegetation, and reduce existing maintenance costs associated with Needmore Road. 3. Current Schedule State Environmental Assessment/FONSI: October 2006 Construction: Sections A, B, and D-2007 Section C-Post Year 4. Environmental Constraints • Little Tennessee River with federally protected species: Spotfin chub, Appalachian elktoe, Littlewing pearly mussel • Wetland #1 • Geotechnical "hot rock" (see attached) • Archaeology and Historic Architecture 5. Design Constraints • Bridge 78 over Tellico Creek Characteristics of the road - maintained right of way from ditch line to ditch line Road flooding 6. Alternatives Carried Forward These alternatives represent a starting point for the discussion: • No Build • Pave in place • Pave in place with selective improvements • AASHTO very low-volume local road design • Other Alternatives/Combinations 7. Other Items izi • ?1 C b • x\ V z ?? ` lit cc cc Zt O Z Q ._ cz r y Z Q W Z Q O Z 3 W O O O=fQ z CL L-Li O V °u o ? 0 W Lu z O 0 O s Ir1 O Q j '3 c x ?F ; Rxt ?y 0? N `L ZZVZ xgoo V) Q Q) '^ a OLL > cz ZEE O O -_j x <° 0, z z0caW O v b 2S 'i LLJ O O V) 2 ? OJ- J p \C? \ O Q N p? 00 OJl? w V) j J r ?`P N t Q? ',gR,36 \\ t o RD t o ? zi P pN ? HIGH ? ti PA L 2?j 00 cli ? L ' '• ?6 Q Cl- OJ It ^e '` co U-) (e? OQ?i Lift/e ` off` ,- j U O Q I -k- p Od ' ? W, ? EEpMpRE 4 N ? \ 0 \' ? \ cr- N LLJ J zl{? LLI W O O 1 Z LIJ U?V d??G o O ziZ `9 IC) ? Q i Net Neutralization Potential Results for "Hot" Rock Positive NNP results indicate the basic chemistry component, or, it's ability to neutralize acid. Negative NNP results indicate greater levels of acidic potential. Empirical experience shows values between -5 and -15 are benign as long as some neutralization potential is present. Net Neutralization Potential Results Net Neutralization Potential Results Station Sample # NNP Station Sample # NNP 1+50 14 -5.689 57+50 39 2.795 5+50 15 -4.219 57+65 37 3.199 11+50 1 0.329 57+90 36 2.485 14+50 16 0.746 58+00 34 3.855 15+25 2 3.483 58+75 45 -3.202 16+00 la 3.98 59+00 44 -14.642 17+70 2a 15.672 59+00 5a -14.036 21+00 3 2.36 59+25 29 4.725 24+00 3a -8.532 59+40 11 -13.526 24+50 17 1.493 59+50 10 -15.691 25+00 4 0.983 59+90 42 -22.822 29+00 5 2.488 60+00 43 -25.351 31+90 18 2.325 60+25 30 -16.55 35+50 6 -10.216 60+30 41 -16.701 35+70 32 2.358 61+75 21 6.762 36+50 4a 10.945 63+00 12 0.703 37+00 19 -12.465 63+35 46 1.949 37+00 33 3.98 63+50 28 4.258 38+00 7 2.736 63+75 47 -42.48 44+00 8 3.234 64+25 49 -7.39 54+50 9 2.545 64+40 13 -4.024 55+00 25 -6.507 64+50 6a 8.706 55+50 20 -10.833 65+00 27 3.913 55+95 24 2.514 65+10 48 -21.04 57+00 35 -0.58 66+00 50 3.48 57+15 38 3.483 67+90 22 6.958 57+25 31 3.855 92+10 23 -9.439 57+35 40 -16.481 100+00 26 -22.352 R-4440 Needmore Rd Meeting Details Subject: R-4440 Needmore Rd Meeting Details From: "Bryan D. Kluchar" <bdkluchar @dot. state.nc.us> Date: Thu, 08 Dec 2005 11:22:05 -0500 To: Brian Wrenn <brian.wrenn@ncmail.net>, chris militscher <Militscher.Chris@epamail.epa.gov>, "Harold M. Draper" <hmdraper@tva.gov>, "marella_buncick@fws.gov" <marella_buncick@fws.gov>, "Marla J. Chambers" <chambersmj@vnet.net>, "angie.pennock@saw02.usace.army.mil" <angie.pennock@saw02.usace.army.mil>, sarah mcbride <sarah.mcbride@ncmail.net>, Linwood Stone <lstone@dot.state.nc.us>, matt@regiona.org, Joel Setzer <jsetzer@dot.state.nc.us>, "Jamie Wilson, PE" <jwilson@dot.state.nc.us>, Paul White <paulwhite @dot. state.nc.us>, Mark Davis <markdavis @dot. state.nc.us>, "Jody Kuhne, LG, PE" <jkuhne@dot.state.nc.us>, "Mike W. Little" <mlittle @dot. state.nc.us>, "Roger D. Thomas PE" <rthomas @dot. state.nc.us>, Keith Paschal <kpaschal @dot. state.nc.us>, Neb Bullock PE <nbullock@ dot. state.nc.us>, Andrew Nottingham <aottingham@dot.state. nc.us>, Teresa Hart <thart @dot. state. nc. us> Thank you all for planning to attend the R-4440 (Needmore Road) field review and concurrence meeting next week (Tuesday, December 13th). Please bring your concurrence information from September's meeting (another agenda is attached). We will meet at the intersection of SR 1364 (Needmore Road) and SR 1369 (Tellico Road) at the southern terminus of the project in Macon County at 9:00 a.m. A large van will be used for transport during the field review. Attached are Swain County and Macon County maps with directions to the meeting site. Please let me know, at your earliest convenience, if you are unsure of the meeting location on Needmore Road. If you need assistance or have a message on Tuesday morning, please contact the Division 14 office (828) 586-2141. After the field review, we will travel to the SCC Swain Center for the remainder of the meeting. The Swain Center is located 5 1/2 miles west of Bryson City on US 19/74 between NC 28 south and the high bridge over the Little Tennessee River. There is a link to a map with directions below. SCC Swain Center 60 Almond School Rd Bryson City, NC 28713 828.488.6413 map link: 1 of 2 12/8/2005 4:22 PM R-4440 Needmore Rd Meeting Details htt-p://www.southwestemcc.edu/centers/swain.htm Please contact me if you need additional information or have questions. Thanks again, Bryan Project Development and Environmental Analysis Branch 919-733-7844 ext 216 2 of 2 12/8/2005 4:22 PM Hampton Inn Franklin, North Carolina - Official Hotel Site &&Wpft rFrankCzn Directions and Transportation I-40: take Highway 23 to Franklin and go to Holly Springs Shopping Center, turn Directions and left to Cunningham Road and the hotel is up the hill. From Asheville: I-26 to I-40 to Transportation Highway 23. Make a Reservation From Atlanta Ga, I-95 to Gainesville, GA. Then Hwy 23/441 N to Franklin, NC. Proceed to second light and turn right on 64 E Bypass. Continue to next traffic signal and turn right onto Hyatt Rd. Just before Wal-Mart, at Holly Springs Shopping Center, turn left on Cunningham Road to the Hampton Inn. From Knoxville, TN, I-40 E to Exit 407 (Hwy 66). Then Hwy. 66 Which becomes Hwy 441 through Gatlinburg, TN, to Sylvia NC. Proceed approminately one mile and turn left at traffic signal onto Hyatt Road. Just before Wal-Mart, at Holly Spring Shopping Center, turn left on Cunningham Road to the Hampton Inn. Local Airports ASHVILLE AIRPORT Distance from hotel: 65 mi. Drive time: Directions: I-26 WEST, EXIT 9 TURN RIGHT TO FIRST LIGHT THEN TURN RIGHT Getting to and from the Airport ''l Mil Y I iiton at ors A proud member of the Hilton family of fine hotels. 1 of 1 12/8/2005 4:13 PM 0 _!SD- 4_?.. - ---? "lo _-- -- - - -------- ` ??-vs ----- b "V-4 4-- 4-\ Dk a kv \ 4 - - _'6 s -------- - SCE . y4i - - ------ -- --saw- s---? --? ?` -- P ----------` ` ------------- -------- - ----------- ----------- - AT ?..r -------- --- -------- --- ?d)IA"?- - -Q --G - t 0 --'.k We? ------- -------------- --- ------ ----- -- =-w?--??, ---- ? - - ?"------ --- -- YLS ? ?timr o -- - - --- - --------- - - ---- - - - --- -- ---- -- --- -- ----------- ---- -------- ----- --- ----- m ------ __ - --- -- --, - --mod ---a? _. ?.??- - - - - - - - -_ - -- -- -- - -- -- ----- - - _ _ - -- - - - - - --- - - -- ---- - ----- °?-boo-?---mss-- ?? ??-n??. 4-r - - _ -- _----- - ----- -- --- -------- ------ LJ_1 -L r-" LILL_j LID. yn ULV Iv-l 11 11'..rn- - I. i I -.--- - _ -_ . ___ . Assessing the Potential Environmental Impact of Acid Rack Drainage (ARD) and Metal Leaching (ML) for the Sea to Sky Highway Improvement Project Between Vancouver and Whistler, British Columbia Stephen Barrett, Rens Verburg, Valerie Bertrand, Cheryl Ross, Jeff Fillipone and Dave Mundayl ABSTRACT This paper discusses the study completed as part of the Environmental Impact Assessment to assess the Acid Rock Drainage (ARD) and Metal Teaching (MI.) potential of proposed new rock cuts that will be constructed as part of the Sea to Sky Highway Improvement Project. The Sea to Sky Highway, that extends from Vancouver to Whistler, British Columbia, is currently being upgraded in preparation for the 2010 Winter Olympic Games. An ARDIML assessment was required to evaluate potential environmental effects to freshwater and marine environments from rock cuts and waste rock generated during the highway upgrade. The paper presents the approach to and findings of the ML/ARD assessment, and concludes by describing key factors for consideration when planning such studies, as well as some options available to mitigate potential impacts. 1.0 PROJECT BACKGROUND The British Columbia Ministry of Transportation (MoT) is in the final stages of negotiating a Design Build Finance Operate (D1317M) Contract for upgrading of the Highway 99 corridor froth Horseshoe Bay to Whistler. The project involves selective widening of the existing highway to 4-lane and 3-lane sections and construction of safety upgrades throughout the remainder of the corridor. As part of the environmental review process, a study was ouzdertaken by Golder Associates Ltd. to determine the potential environmental effects from ARD and MT generated from the new rock cut faces and waste rock, generated during excavation. This involved characterizing the rock over a 44 km section from Horseshoe Bay to Squamish (Preliminary Alignment (PA) Sections 1 to 8) and a 23 km section frc(m Cheakamus Canyon to Function Junction in Whistler (PA Sections 14 to 1$) where the new rock cuts were proposed (Figure 1). ' Authors Address: Stephen Barrett and Valerie Bertrand; Tel: (604)296.4200; Fax: (604)298-5253 Golder Associates Ltd, $00 - 4260 Still Creek Drive, Burnaby, BC, V5C 6C6. Canada Rens Verburg and Cheryl Ross; Tel: (425)883-0777; Fax: (425)882-5498 Golder Associates inc., 200 - 18300 NF Union Hill Road, Redmond, Washington, 98052, USA Jeff Fillipone and Dave Munday; Tel: (250)881-7372; Fax: (250)881-7470 Gelder Associates Ltd., Suite 220 -174 Wilson Street, Victoria, BC, V9A 7N6, Canada 451 4 -S2 Figure 1 - Project Location Plun It, ; _L_6 IJ Ll ' : LIO UCLj I G`.f11 Y 1 •..,n? '. 1 v ? i non - , , --- Preliminary design for the project proposed a total of approximately 70 rock cuts that would produce approximately 1.8 million m3 of excavated rock (neat line - no swell factor applied). Of the total rock excavated, 250,000 m3 was estimated to be surplus, although the local imbalances at either end of the project were much larger (SNC, 2003). The objectives of the study were 1) to characterize the material to be excavated with respect to its ARD/ML potential; 2) to identify environmental effects based on the assessed ARA/ML potential; and 3) to determine suitable re-use or disposal options for the excavated material. This included assessing the potential for re-use of the non-acid generating material as manufactured aggregate products for sale to interested third parties. 2.0 ARD I ML EFFECTS ON AQUATIC ECOSYSTEMS Metal loading to the environment can adversely affect aquatic ecosystems. Although metal leaching may occur under neutral pH conditions, because the mobility of many metals increases as pH decreases, acidic conditions generally enhance metal leaching. Generation of ARD occurs when reactive sulfides such as pyrite, a common iron sulphide, are exposed to water and oxygen, resulting in formation of a solution that is generally characterized by a low pH, elevated dissolved metal concentrations, and total dissolved solids, with sulfate being the principal contributor. Runoff :from rock cuts where sulfide oxidation has occurred may result in metal loading (e.g., iron (Fe), aluminum (Al), copper (Cu) and zinc (2n)) to freshwater and marine environments. The chemical and mineralogical characteristics of the rocks will determine which metals and the quantity of metals that will be released, while the characteristics of the receiving environment will control the mobility of the metals and other constituents. In freshwater and marine environments, exposure of aquatic organisms, such as fish and benthic invertebrates, to metals may occur through a variety of pathways including dermal uptake, absorption though the gill membrane, and ingestion of water and/or prey. Specific examples of potential adverse environmental effects include, but are not necessarily limited m: • Toxic interactions from reduced pH and increased metal concentrations; • Sediment toxicity where trace metal concentrations are high; and • Reduced habitat availability caused by precipitate settling. Adverse impacts to organisms may range from acute toxicity to bioaccumulation in the food chain to behavioural or reproductive effects. Degradation of the aquatic environment has the potential to result in reduced species richness and abundance and/or n shift from pollution- sensitive to pollution-tolerant species. Typically ARD / ML issues are identified at mine sites, but they have also been identified on some civil engineering infrastructure projects, such as the access road to IIalifax Airport. If the potential problem is not identified early on in the design process so it can be mitigated, it can become very expensive to control after the project has been constructed. 453 3.0 '.MATERIAL CHARACTERIZATION 3.1 FIELD MAPPING PROGRAM The first step in the ARD / ML assessment was to develop a geologic model, which identified the number, type and location of the significant lithological units present along the project corridor (Figure 2). The model was based on existing geological mapping, supplemented by a limited field program to verify the location of geologic contacts, lithologic type and mineralogy, as well as to document alteration/mineralization, rock texture or structure relevant to an ARD / ML assessment. Once completed, the geologic model was superimposed over the preliminary highway designs to select sampling locations for the laboratory testing program. The final model consisted of a relatively simple geologic framework consisting of three overall lithologic packages from Horseshoe Bay to Squamish and eight individual lithologies from Cheakamus Canyon to Function Junction. The lithological groupings were as follows: Horseshoe Bay to Squamish (PA Sections 1 to g) 1) 7?vrn Island Group (f'JT): Metamorphic rocks of the pre-Jurassic Twin Island Group 2) Coast Plutonic Complex (CPC): Intrusive, granitic rocks of the Mesozoic Coast Plutonic Complex, consisting of late Jurasssic granodiorite (gdz), Squamish Pluton granodiorite (gdl), granite (g) and quartz diorite (qd); and 3) Gambier Group (IKo). Marine sedimentary and volcanic rocks of the lower Cretaceous Gambier Group. Cheakamus Canyon to Function Junction (PA Sections 14 to I6) I ) Garibaldi Group (PRG): Basalt flows 2) Gambier Group (KG'v): Dacite and andesite flows. 3) Metadiorite (JKdi). Chloritized, locally foliated diorite. 4) Slollicum Schist (NISI): Chlorite, pyllite and slate 5) Quartz Diorite (m/Jgd): Quartz diorite and minor granodiorite 6) Greenstone (Trigs): Metavolcanics and schists 7) Gneiss (gn): Quartzofeldspathic gneiss 8) Granodiorite (Kgd): Cretaceous Granodiorite 3.2 GEOCHIEMICAL CHARACTERIZATION PROGRAM The geochemical characterization program was designed to provide sufficient information to assign a bulk ARD / ML potential to each lithology to be excavated. This evaluation included sampling and geochemical characterization of rock samples collected along the alignment. At select sampling locations, field-scale ]each testing (i.e., wall washing) was conducted for comparison to the results of lab-scale leaching tests. Water quality sampling of creeks was conducted to establish background conditions and to assess the environmental impacts of existing rock cuts. 454 U_ . -4 C, n WWATr IOLIMO R d M/dgNMMMII ? /Ifr 10'UI'? sQ?? A1Q r utt woe, M Tx; to R E BAY M J"J KMM OWMNBM 4860 ffowa" Won MO1 "Rif 4"YM 7AWARR Maw I=NQV 4? w+w ?-rypt/ M'?R---?tCT1CM NOW ?Y111R M? az?Na7?raan? Figure x - Simplified GeologiC41 M0401 455 Rock samples were collected for geoehemical characterization. The sampling density was sufficient to provide a screening level of study, with an understanding that more detailed testing would be completed during detailed design, following finalization of rock cut locations. At each sample location, a 5-kg to 8-kg composite sample was collected from the rock face over a linear distance of two to three meters. Individual samples were confined within one lithology or to a zone of distinct character within a lithology. A total of 54 rock samples were tested in the laboratory, including four duplicates for evaluation of quality assurance/quality control (QA/QC). To characterize the ARD and ML potential of the samples, the following analyses were conducted: • Acid Base Accounting (ABA) including the following analyses: - Acid Potential (AP) by sulphur speeiation (total sulphur and sulphate sulphur) analysis; - Bulk Neutralization Potential (NP) by modified Sobek; - Carbonate Neutralization Potential (CaNP) by total. inorganic carbon (TIC) analysis; and • Paste pH. s Whole rock chemistry and mineralogical analysis; and • Satic leach testing (i.e., Shake Flask Extraction (SFE)). ABA and whole rock chemical analyses were conducted on all 54 samples. Ten samples were submitted for mineralogical analysis by X-ray diffraction (XRD), focusing on the identification of acid buffering minerals such as carbonates and acid generating minerals such as sulphides (pyrite). Representation of each of the major rock types was considered in sample selection. Sample selection was biased toward those samples with high sulfide contents or high total inorganic carbon, indicating the possible presence of carbonate minerals. This analysis was intended to determine the nature of neutralizing and acid generating minerals and further determine the amenability of the mineral assemblage in the rock to generate ARD. Metal leaching potential was evaluated on a sub-set of 30 samples using SFE. The SFE test represents a standard, short-term, static leach test aimed at determining the readily-soluble component of a material. Sample selection considered spatial and volumetric representation of rock units along the highway alignment. SFE Samples were crushed, and split into coarse (2.8 to 9.5 mm) and fine (less than 2.8 nun) fractions and subjected to a 24-hour test using de-ionized water as the lixiviant. Testing of both a coarse and a fine fraction allowed evaluation of the effect of grain size on metal leaching. Test leachates were filtered and analyzed for dissolved metals. At six sampling locations, field-scale leach testing (wall washing) was conducted for comparison with the laboratory testing results. The wall washing tests were conducted following the standard procedure outlined in Price, 1997. The wall waslu.ng tests were performed prior to the start of the Fall and Winter wet season on the west coast. The results of these tests were therefore considered to be, representative of conditions that reflect extended weathering throughout the dry season. Generally, the "first flush" of the wet season results in peak or worst- case metal loading, as stored acidity and metals in secondary minerals that have accumulated on the rock face over the dry season are removed and collected in the rinsate, 456 Water quality samples were also collected from creeks and from Howe Sound to establish background water quality. Each water sample was analyzed for total and dissolved metals, major anions, hardness, total dissolved and total suspended solids (TDS and TSS), conductivity and pH. An example of the drawings used to summarize the results of the field mapping and laboratory testing programs is shown in Figure 3. Information shown on these drawings included: • Geologic units; • Lithologic descriptions; • Rock sample locations and identification numbers; Approximate proposed road cut limits; • Indicators of A.RD potential; • Metal concentrations in SFL test leachates exceeding fresh water and marine aquatic life guidelines; and • Surface water sample locations and identification numbers. 4.0 DETERMINATION OF POTENTIAL ENVIRONMENTAL EFFECTS The approach developed for this study considered the potential effect of ARDIML from final rock cut faces and from re-use or disposal of the excavated rock. A quantitative method was used to predict metal loading from rock cuts, while potential environmental effects from the re- use and disposal of excavated rock were discussed qualitatively and mitigation strategies were proposed to preclude or minimize environmental impacts. The approach is represented graphically in the linkage diagram shown in Figure 4. This diagram provides a conceptual framework to describe and evaluate the potential environmental effects that the rock cut faces and the re-use and disposal options for the excavated materials could have on freshwater and marine aquatic life. 4.1 ARD POTENTIAL As no regulations or guidelines currently exist with respect to the analysis of reactive rock material encountered during road construction, rock sample analyses follows those outlined for the mining industry in Price 1997, Following these proceduavs, the potential of a geologic material to generate ARD is evaluated by comparing the ararrount of neutralizing minerals expressed as neutralization potential (NP), to the amount of sulphide minerals expressed as the maximum acid potential (AP) present in the rock. This ratio is referred to as the Neutralization Potential Ratio (NPR). Price's suggested guidelines :For interpretation of the NPR are presented in Table 1 below. 457 f yf f ?? ?? ``, ,rte ?r r ? • ,? ? ?? ? ? ? a a 7 a # Cp ? ? ? j{ Y i ? 7 i Z 71NMI/WOIM •YM40,M f9 jays a? fill' fltt i 458 - - - - - - - - - - - - owl Y+0 f b ? 1+f r? U p Q a> L?' rq v iu a, U o C!? 0 1?1 ? .ca W ? n? ul 0-4 459 __ 1C.'. Li 7.-10 L7GU i G?ni,i n- -" i r.- - I- ? __ __ . ___ . _ TABLE 1: ACID ROCK DRAINAGE SCREENING CRITERIA (PRICE 1997) Potential for Initial Screening Comments ARD Criteria Likely NPR <1 Likely acid generating, unless sulphide minerals are non- reactive. Possible I <NPR<2 Possibly acid generating if NP is insufficiently reactive or is (uncertain) depleted at a rate faster than sulphides. Low 2<NPR<4 Not potentially acid generating unless significant preferential exposure of sulphides along fractures planes, or extremely reactive sulphides in combination with insufficiently reactive NP. None NPR >4 For the purposes of the assessment, rock having a NPR value above a was considered to be non- acid generating. All rock having a NPR less than 4 was considered as having the potential to generate ARD. For racks with NPR values between 2 and 4, classification as potentially acid- generating (PAG) was considered conservative. After further analysis, these materials may not require special handling or disposal procedures depending on their potential to leach metals. Price (1997) also presents a number of other criteria which may be applied to assess the ARD potential of a rock. While these criteria were not used as the primary screening tool in this study, they were used as secondary means to check the conclusions drawn from the NPR's. The first criteria, evaluates acid generation potential using the sulphide sulphur content and the paste pH. Materials with a sulphide sulphur content less than 0.3 wt. % and a paste pH greater than .5.5 are considered non-potentially acid generating (NPAG) and require no further environmental testing. Exceptions occur where the rock matrix consists of base poor minerals (e.g., quartz), or where the sulphide minerals contain metals that may leach under weakly acidic to alkaline conditions. Rock characterized as havuag an NPR value below 2, and having a total sulphur content greater than 0.3 % is considered as PAG material under this criterion and consequently, would require additional investigation. The second criteria, evaluates ARD potential by calculating the Net Neutralization Potential (NNP), which is the difference between AP and NP values (NNP - NP - AP). A negative NNP value is deemed to represent rock having a potential to generate acidic drainage, whereas a positive NNP reflects a likelihood that any acid generated by the rock will be neutralized. 4.2 ML POTENTIAL Metal leaching rates (i.e,, amount of metal per unit surface area (kglm2)) were calculated for each of the major rock types using SFE and wall washing test results. Leaching rates were calculated for aluminum and copper, as these were considered to be the metals most likely to leach at concentrations above water quality standards based on the results of the SFE tests. To quantify 460 the potential environment effects due to ML loading from the final rock cut faces, the following additional work was undertaken: Certain drainages were selected for detailed loading analysis from the proposed rock cuts. For each of these, the total surface area of all planned rock cuts within the basin was calculated. The total surface area of the rock cuts was multiplied by the ML potential to calculated the mass (kg) of aluminum and copper loading. 2. Hydrological analysis was undertaken to derive two scenarios: The predicted typical summer low flow for selected crceks'along the alignment. The 10 year, June to September, 7 day low flow in any stream was correlated with the contributing drainage area, based on calibration data from applicable nearby stream gauging stations; and Resultant predicted peak stream flow corresponding to a typical fall "first flush" storm event. For the Horseshoe Bay to Squamish section of the study area, this analysis was based on a 4-day, 60 nun rainfall event recorded at the Britarmia Beach 1 Furry Creek climate station from September 12-15, 1996, and extrapolated to other selected drainages. For the Cheakamus Canyon to Function Junction section of the study area, this analysis was based on a 2-day, 44 nun rainfall event recorded at the Cheakamus River near Brackendale from October. 13 to 14, 1999. Metal concentrations were calculated at three locations for the "first flush" fall storm event: (1) concentrations iii rtmoff from rock cuts prior to any dilution in the receiving environment, (2) the in-stream concentration once the runoff is fully diluted, and (3) the concentration within Rowe Sound based on the loading derived from the drainage basins under consideration. Simulation of metal loading from the first flush storm event was intended to be representative of a worst case metal loading scenario. First flush storm events generally cant' a high chemical load, due to the accumulation of oxidation products containing stored metals and acidity on rock surfaces over the summer months (due to lower precipitation). Predicted metal concentrations were compared to the following criteria for the protection of freshwater and marine aquatic life to determine potential environmental effects: The Canadian Council of Ministers of the Environ.inent's (COME) Canadian Environmental Quality Guidelines (CEQGs) (updated 2001) (Selected Maximum Acceptable Concentrations: Al < 5 pg/L and Cu < 2 )4g/L); The Ministry of Water, Land and Air Protection's (MWLAP) British Columbia Approved Water Quality Guidelines (Criteria) (1998; updated 2001); and, The MWLAP's A Compendium of Working Water. Quality Guidelines for British Columbia (1998; updated 2001)- 461 V. Ic"c=UU.lJ LJ7.-40 U ui-1. 11 ?n_ vi'11i-n??i iLv a--- i_i_. _._ The two sets of water quality criteria for B.C. are collectively referred to as the BC Water Quality Guidelines (BCWQGs). 5.0 POTENTIAL ENVIRONMENTAL EFFECTS FROM A.RD Based on the results of the ABA testing, the following; rock types along the corridor exhibited a NFR < 4 in the sa.rnples tested: TABLE 2: Lithologies Containing Samples with a NPR <4 Design Section I.ithotsgy aqd Ruck Type Number of Samples Number of Samples with Tested an NPR < 4 PA Section 1 Coast Plutonic Complex 3 1 d2 Granodiorite PA Section 2 Coast Plutonic Complex 3 1 qd-d (Quartz Diorite, Diorite PA Section-') Strongly oxidized, sulphur 1 t stained shear zone within Gambier Group )KG Andesite PA Section 3 Gambier Group IKG 1 1 Andesite PA Section 3 Coast Plutonic Complex 1. 1 d z Diorite TEA Section 3 Gambier Group IKG 2 2 (Volcanic Breccia Conglomerate) PA Section 4 Gambier Group 1KG 2 2 Andesite and Tuf PA Section 415 Gambier Group JKG 3 3 (Argillite) PA Section 7 Gambier Group 1KG 2 2 (Argillite, Siltetone and Sandstone PA Section 7 Gambier Group IKG l 1 (Basalt and Feldspar Pa h PA Section 8 Coast Plutonic Complex 4 1 gdl (Granod.iorite from S uamish Pluton PA Section 15 Greenstone Tr]gs 1 1 Chloritized Am hibolite While the Coast Plutonic Complex (CPC) rocks did contain samples with NPR < 4, their bulk ARD potential was classified as non-acid generating, as the total sulphur contents were less than 0.3 wt. % and paste pH values were greater than 7. These rocks were typically characterized by 462 moderately low bulk (Sobek) NP values ranging from 2 to 132. For all but one sample, carbonate NP values were lower than Sobek NP values, indicating that carbonate minerals were not considered to provide significant neutralization capacity. NP was considered to be likely provided by less reactive alurnino-silicate minerals, which was supported by the results of mineralogical analysis. The maximum AP value recorded was 1.9, from a total sulphur content of 0.06 %. Only six of the 19 CPC samples had measurable concentrations of total sulphur, with the highest concentration measured at 0.06 wt. %. The Twin Island Group (PJT) rocks had no samples with NPR < 4, and as such, were also classified as non-acid generating. All of the rock types (andesite, argillite, tuff, volcanic breccia and basalt) in the Gambier Group Lithology (IKa) exhibited potential to generate ARD (NPR < 1). With the exception of one sample from a small rock cut in PA Section 2, paste pH values for IKo samples were neutral to alkaline. The samples had NP values ranging from 3.5 to 18.1 and AP values ranging from below the detection limit (<0.2) to 40.3. Carbonate NP values were generally much lower than Sobek. NP values, indicating that carbonate minerals do not appear to provide any significant neutralization capacity. NP was again considered to be likely provided by less reactive alumino- silicate minerals. The Gambier Group rocks exhibited a wider range of sulphur and sulphide content than rocks in the other lithologies along the alignment. Total sulphur contents ranged from below detection (< 0.01 wt. %) to 5.2 wt. %, with an average value of 0.53 wt. % (sulphide values below detection were assumed equal to one half the detection limit in the average calculation). The overall ARD potential of rocks between Squamish and Whistler (.PA Sections 14 to 16) was found to be as low, with the exception of one sample in the Greenstone lithology (TrJgs) with a NPR of 0.7. The low A.RD potential was attributed to low total sulphur contents, with over 80% of samples in this section of the highway reporting total sulphur below 0.1 wt. %. As noted earlier, a minimum sulphide content of 0.3 wt. % is generally applied as the threshold, above which, a rock type may have ARD potential. 6.0 POTENTIAL ENVIRONMENTAL EFFECTS FROM ML Based on the metal loading analyses completed for the study, aluminum and copper concentrations were found to exceed CFQG's and sometimes 13CWQG's at the base of the proposed rock cuts, but were found generally to be below the CEQG's and the BCWQG's in the receiving stream or waterbody. Drainage basins where the CEQG's were exceeded in the receiving stream are listed in Tables 3 and 4. When reviewing these results, it was noted that in each case, the background water quality already exceeded the CEQG's requirements for the respective metal. Z NP and AP values expressed in units of tonnes CaCO3 equivalent per 1000 tonnes of rock. 463 Table 3: Prodicted Aluminum Concentration in Receiving Stream Receiving Total Rack Cut First Flusb Background Aluminum Predicted Stream Area Flow Dissolved Load Aluminum Aluminum Stream Coaccutration m: m'/s ug/L 9 ug/L Sclufteld 2,300 0.094 18 3 18.3 Rundle 7,280 0.079 23 63 31.7 Table 4: Predicted Copper Concentration in Receiving Stream Receiving Total Rock Cut First Flush Background Copper Load Predicted Stream Arca Flow Dissolved Copper Stream Copper Concentration m' m3/s ug/L 9 ug/L Sclufield 2,300 9.094 2 1 2.1- 1 The small increases in predicted metal concentrations in the receiving environment during the first flow event were also considered to be conservative, because of the assumption of direct discharge from the rock cut :face to the receiving stream or water body. In reality other factors may diminish the concentration of dissolved metals entering the receiving environment. These could include: Dilution -- it is likely that impacted rock drainage water will combine with other drainage sources such as runoff from the widened highway prior to entering the receiving watercourse / waterbody; Attenuation - depending on the distance to the receiving watercourse / waterbody and the substrate encountered, metals dissolved in the rock drainage water may adhere to soils and other surfaces through variety of physicochemical processes; and Precipitation - metals dissolved in solution may react with other compounds and precipitate out of solution if the concentrations are high enough. In many cases, the newly synthesized compound is chemically inert. In terms of the impact on Rowe Sound., the total predicted increases in aluminum and copper loading for all drainages analyzed were 66 g and 3 g, respectively. These additional loads were considered minor when compared to the background loads from large drainages such as Britannia, which alone were estimated to discharge 8.2 kg of Al and 5.7 kg of Cu into Howe Sound over the course of the same 24-hour first flush event. 'W'hile the results of the metal loading analysis indicated that the environmental effects would likely be small, it was considered prudent that a surface water quality monitoring program be established to verify the environmental assessment results both during and after construction. Should localized effects be identified by the monitoring program, mitigation measures could be 464 J _'-lO?JEJ t?•'tiU vuJiv..i u+a?n` ..i, ._`..`?? ?_.______ _ ___ __ initiated to minimize the impact. Mitigation options proposed included shotcreting of cut faces to isolate them from surface water, lining of the ditches with lime or limestone and construction of a more complex leachate collection and treatment systems. 7.4 POTENTIAL EFFECTS FROM RE-USE AND DISPOSAL OF EXCAVATED ROCK The preliminary design project scope indicates that approximately 1,140,000 m3 of rock will to be excavated along the highway corridor between Horseshoe Bay and Squamish and a further 640,000 m3 of rock will be excavated along the highway corridor between Cheakamus Canyon and Function Junction (SNC, 2003). Of the total excavated, 140,000 m3 was anticipated to be PAG material between Horseshoe Bay and Squamish, with remainder anticipated to be NPAG. No PAG material was anticipated to be excavated between Ch.eakamus Canyon and Function Junction. Once the PAG material was identified, potential environmental effects were determined for each of the potential re-use and disposal options, including any handling and temporary stockpiling issues as the material is taken from the excavation and applied to its designated end-use or disposed of in a waste rock pile or ocean disposal site. Areas where ARD/ML could be generated and discharged if not properly managed include: • Muck piles at the site of the excavation, • Temporary stockpiles required for aggregate processing; • Temporary stockpiles required prior to fill placement; • Waste rock dumps; • Temporary stockpiles required for ocean disposal; and • At barge loading sites. Any discharge from these sources would be additive to the metal loading from the rock cut faces. In addition, due to the larger surface area of the blasted rock compared to that of the excavated cut face, the metal loading could be larger from the excavated FAG material than from the cut face itself. As the potential for re-use of the PAG material as bulk fills or aggregates was determined to be limited, a decision was made towards the end of the study to dispose of all PACT tmterial - generated by the project either in a designated Ocean Disposal Site to limit its ability to oxidize or within the abandoned Britannia mine workings located in PA Section 6. -The Britannia mine option was considered to be feasible from an ARD/ML perspective, because the groundwater discharge from the thine has been designated for treatment irrespective of the highway upgrades, as part of the mine's closure plan. By adopting this materials management strategy, the potential environmental effects from the excavated PAG material were again considered to be small and any local effects which may occur during the transportation of the material to the disposal site could be mitigated using standard environmental best management practices for contaminated soil. 465 8.0 CONSIDERATIONS WHEN PLANNING FUTURE STUDIES Based on our experience conducting this assessment, important factors which should be considered when planning similar studies are as follows; Early definition of the project scope is important, as the results of the assessment are highly dependent on the location of the proposed cuts and the volume of excavated material to be generated from them. If the assessment is completed when the project scope is still poorly defined, there is a risk that multiple revisions will need to be undertaken, at additional cost to the Owner; 2. Because the project scope may change considerably during the conceptual and preliminary design stages of a project when the environmental assessment needs to be undertaken, and because of the associated cost of late scope changes outlined above, it is best to conduct the environmental assessment using a phased approach. The initial sampling and testing programs should provide a screening level of assessment, with comprehensive testing of individual cuts reserved until later in the design process, when the cut locations, excavation volumes and potential ARD/ML issues are better known and understood; I When conducting detailed testing of individual cuts, it is important to test the entire cut length within a potentially problematic lithology, even if adjacent samples tested during the screening level study in this particular unit do not indicate a potential problem. This is important, as ARD potential can not be determined from visual inspection alone and can vary considerably within a given exposure. 4. During the construction phase of the project, it is important to conduct water quality monitoring in the vicinity of the excavated cuts and down stream of any stockpiles of PAG materials, to verify the assessment results. While the assessment methodology should be designed to produce reasonable, yet conservative results, the many variables which inevitably arise when simulating such complex processes, always lead to some uncertainty in the results. A well designed monitoring program is a useful means to overcome such concerns. ACKNOWLEDGEMENTS We would like to acknowledge the contributions of the Golder. Associates Burnaby, Victoria and Seattle staff that provided technical and administrative support to the paper's authors during the study. We would also like to acknowledge Al Brown and Angela Buckingham of the Ministry of Transportation, who were the Owner's representatives for the project and who reviewed the paper and authorized its publication. 466 ® North Carolina Wildlife Resources Commission Charles R. Fullwood, Executive Director TO: Bryan Kluchar, Project Development Engineer Project Development and Environmental Analysis Branch, NCDOT FROM: Marla Chambers, Highway Projects Coordinator Habitat Conservation Program, NCWRC DATE: August 26, 2003 SUBJECT: Needmore Road (SR 1364/SR 1114) improvements, Macon and Swain Counties. TIP No. R-4440. In our recent telephone conversation we discussed possible options for improvements to Needmore Road in Swain and Macon counties. I have since consulted with other North Carolina Wildlife Resources Commission (NCWRC) biologists familiar with the project and reviewed my files in order to provide the North Carolina Department of Transportation (NCDOT) our position and concerns for this project. As you know, Needmore Road is a narrow dirt and gravel road, which runs along a portion of the Little Tennessee River that flows between Franklin, NC and Fontana Lake. The Little Tennessee River in that area is considered one of the most significant aquatic habitats in North Carolina, as well as the southeastern United States. The river supports populations of Appalachian elktoe (Alasmidonta raveneliana) and littlewing pearlymussel (Pegias fabula), both federal and state Endangered, and is designated critical habitat for the spotfin chub (Cyprinella monacha), federal and state Threatened. Numerous other state listed and rare species inhabit the Little Tennessee River in this area. The North Carolina Chapter of the Nature Conservancy is in the process of purchasing 4,400 acres of land along Needmore Road and the adjacent river to protect this rare and sensitive ecosystem. While the road has been under consideration for widening and paving, the NCWRC recommends a paving-in-place alternative, which would reduce sediment input into the river from runoff and periodic flooding. We understand that at least one area of the road has a tendency to wash out. Although we support stabilizing the area(s) to prevent further sedimentation impacts and look to NCDOT for low-impact stabilization solutions, any Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center ' Raleigh, NC 27699-1721 Telephone: (919) 733-3633 ext. 281 0 Fax: (919) 715-7643 Needmore Road, Little Tennessee River Swain and Macon Counties 2 August 26, 2003 stabilization along the Little Tennessee River will need to consider the potential impacts to rare & endangered species, especially mussels. NCWRC is willing to assist with mussel surveys or relocations, if necessary. Needmore Road is a popular spot for camping and fishing. We are concerned for the public's safety while enjoying the natural resources of the area. Some areas along the road have limited site distance and many motorists travel the road at unsafe speeds. Cutting into the adjacent slopes to improve site distance is likely undesirable due to the acidic nature of the rock in the area. We understand that the unpaved portion of the road is not posted for speed, while a paved section in Swain County has a 35-mph speed limit. We recommend a number of measures be investigated to slow traffic in order to improve public safety, while preventing negative impacts to the rare and valuable resources and preserve the rural character that makes it a popular recreational area. We suggest that the measures considered include posting a 35-mph maximum speed limit and installing speed bumps, rumble strips, guardrails and/or warning signs in appropriate areas. We appreciate the opportunity to provide input in the planning stages of this project and look forward to continue working with you on it. If you have any questions, please contact me at (704) 485-2384. cc: Marella Buncick, USFWS Cynthia Van Der Wiele, NCDWQ Sarah McRae, NC NBP Wib Owen, NCWRC Worksheet for Purpose and Need Needmore Road Purpose and Need of the Project The purpose and need for the proposed project is to improve the quality of travel (eUe.?S for local residents that currently use Needmore Road, reduce existing sedimentation from Needmore Road into the Little Tennessee River, and reduce existing maintenance costs associated with Needmore Road. PLEASE NOTE THE CHANGE IN WORDING FROM THE STATEMENT IN THE PURPOSE AND NEED REPORT. • ,y?ealucz ?.?c?f : a?wc.e'.'s1'G, °°?- /. ? /? ^? ,? Q ? ? ) ?} ? ?? "Z 7b YA-0- PC- -? Road User Costs 1. NC 28 45 miles - 17 miles = 28 miles 28 miles(200 vehicles/day)(3 days)($0.365/mile) = $ 6,132/ year (2002) 2. US 19-23-74 to US 441 89 miles - 50 miles = 39 miles 39 miles(200 vehicles/day)(3days)($0.365/mile) = $ 8,541/year (2002) 3. US 19-74 to SR 1310 52 miles - 17 miles = 35 miles 35 miles(200 vehicles/day)(3 days)($0.365/mile) = $ 7,665/year (2002) PURPOSE AND NEED REPORT SR 1364 / SR 1114 (NEEDMORE ROAD) MACON COUNTY SWAIN COUNTY STATE PROJECT NO.: 6.972062T STATE PROJECT NO.: 6.992193 TIP PROJECT NO. R-4440 ow? O C4? 0? ti z 10 PF TR December 7, 2001 ??1QRTW TABLE OF CONTENTS 1. Introduction II. Need For the Proposed Project A. Purpose and Need Statement 1 B. Project Setting 1 C. Project History 2 D. Agency Coordination 2 E. Existing Conditions 3 Conclusion 6 Macon & Swain Counties SR 1114/SR 1364 (Needmore Road) State Project No. 6.992193 State Project No. 6.972062T TIP Project No. R-4440 August 23, 2001 1. INTRODUCTION An environmental document is being prepared for this project in accordance with the requirements set forth in the State Environmental Policy Act (SEPA). This is an informational document intended for use by state and federal agencies and the public. As such, it represents a disclosure of relevant environmental information concerning the proposed action. This project is using a combination of Transportation Improvement Program funds and secondary road improvement funds for planning, design and construction. II. NEED FOR THE PROPOSED PROJECT A. Purpose and Need The need for the proposed project is to reduce sedimentation into the Little Tennessee River, improve the quality of travel for local residents that use Needmore . Road, and reduce maintenance costs. Needmore Road is designated as a local rural route between Franklin, N.C. and Bryson City, N.C. A 1000-foot section of Needmore Road in Swain County is prone to flooding due to its proximity to the Little Tennessee River. Frequent floods wash sediment across the roadway and into the Little Tennessee River, make the road impassable except in four-wheel drive vehicles, and produce substantial maintenance requirements. During the dry months of summer, the dust stirred up on the road settles on the surrounding vegetation and into the river itself. The proposed project calls for improving the unpaved portion of Needmore Road (SR 1364/ SR 1114) to reduce sedimentation into the Little Tennessee River, provide citizens with a dependable, local road while maintaining the integrity of this environmentally sensitive area, and reducing maintenance costs. B. Project Setting Needmore Road runs between Swain and Macon Counties from SR 1113 in Swain County to SR 1374 in Macon County. Please reference Figure 1. The project begins at the paved portion of Needmore Road located in Swain County and terminates at SR 1370 in Macon County. The road winds through a very rural setting, loosely following the Little Tennessee River. The view varies between a tree lined road with camping areas to narrow passes where the river flows close on one side of the road and rock hills abut the other side. The headwaters of the Little Tennessee River start in Georgia. The river flows through the town of Franklin, North Carolina into Lake James and then on to Fontana Lake located on the border of North Carolina and Tennessee. The stretch of the Little Tennessee River from Franklin, North Carolina to Fontana Lake is considered to be one of the most significant aquatic habitats in North Carolina as well as in the southeastern United States. The Appalachian elktoe mussel, little winged pearlymussel, and spotfin chub are listed as Federally endangered species for both Swain and Macon Counties. For a list of Federally protected species for these two counties, reference Appendix A. The reach is designated as a critical habitat for the spotfin chub. The Little Tennessee River also supports numerous other rare species as well as a substantial smallmouth bass fishery. C. Project History The improvements to Needmore Road began as a NCDOT Division 14 Design/Construct project funded separately by Swain County, District 2, and Macon County, District 3. In May 1997, District 3 applied for a Nationwide No. 14 Permit to extend existing culverts and add new ones where required in conjunction with the proposed improvements to Needmore Road in Macon County. Due to the critical habitat designation, a Section 7 consultation was required for the project. At this meeting, held August 11, 1997, natural resource agencies raised concerns over the potential for secondary and cumulative environmental impacts. Because of the potential of impacts to endangered species and growing local controversy among the citizens, it was determined that this project did not comply with state minimum criteria. Therefore, a State Environmental Assessment/Finding of No Significant Impact (State EA/FONSI) must be prepared. The U.S. Army Corps of Engineers requested that Swain and Macon Counties submit a combined application for an Individual Permit for the proposed construction on Needmore Road. The project was added to the Transportation Improvement Program (TIP) in January 2001 to fund the anticipated additional environmental studies and design effort to complete the project. D. Agency Coordination The first agency coordination meeting was held on July 19, 2000 to discuss the purpose and need for the project and possible alternatives. At that meeting, the agencies requested additional information to better support the purpose and need for the project. Project Development and Environmental Analysis reevaluated the traffic counts, requested hydraulic studies to determine the extent and frequency of flooding, and evaluated safety issues. Additionally, the agencies expressed concerns about secondary and cumulative impacts to this environmentally sensitive area due to possible development once the road is improved. These comments were based on the alternatives presented at the time of the meeting. E. Existing Conditions 1. Typical Section The existing paved portion of Needmore Road in Swain County has two nine foot lanes with grass shoulders of varying widths. The unpaved section of Needmore Road in both Swain and Macon Counties has a hard packed surface of dirt and gravel and a cross- section that varies in width from 16 feet to 20 feet. The existing alignment in Swain County has a series of sharp curves with poor horizontal sight distance. An existing stone retaining wall can be found where the roadway width is 16 feet. Please reference Figure 1. The combination of inadequate roadway width and poor sight distance makes this area a safety hazard. The paved portion of Needmore Road in Swain County has a 35-mph posted speed limit. The unpaved portion is not posted for speed. Please reference Appendix C for photographs of the existing road conditions. In Macon County, Needmore Road is carried over Tellico Creek, a tributary to the Little Tennessee, by a single span, steel I-beam bridge. The bridge, Bridge No. 78, has timber back walls and timber railings. The clear roadway width is 19.1 feet. This structure will not be replaced under this project. It has a sufficiency rating of 50.9. 2. Environmental Conditions The Little Tennessee River in this area is environmentally important for several reasons. One of those reasons is the existing mussel population. The Appalachian Elktoe E S ec3c5and the little winged pearlymussel are indigenous to these waters. Mussels, which are lterfeeders, are very sensitive to changes in the environment and the abundance or S?e??^ absence of these species is an indication of the health of a body of water. Historically, redhaty- every stream and river had mussel populations indigenous to that particular habitat. Mussels of one type of habitat cannot be moved and repopulated in different habitats. s?,ESl?;n Cl6l Therefore, a particular species is unrecoverable once they and their habitat are destroyed. ?/(rGt?1a s??re? The biggest threats to mussels are the sedimentation and pollution of streams and rivers. Sediment is produced from many manmade activities; including grading, farming, and WiW1i ReSoaceS development in close proximity to bodies of water. Cris me 5 - (o s`? 15kJL Sediment filled runoff from existing unpaved roads also contributes to the overall .r,usscls sedimentation of our streams. A two-year study involving monitoring stations would be n? ane ash required to accurately estimate the amount of sediment lost to The Little Tennesse River due to flooding and runoff. Currently, this project does not have the funding to accomplish this type of extensive monitoring. Therefore, past maintenance records were used to estimate the amount of material lost into the river on a yearly basis. The amount of sediment into the Little Tennessee River off of Needmore Road is estimated to range from 70 tons to 372 tons. Please see the information contained in Appendix B. The area surrounding the Little Tennessee River is designated as a critical habitat for the spotfin club. Numerous threatened, endangered, and federal species of concern are native to both Macon and Swain Counties. A list of these species can be found in Appendix A. In Swain County, there are areas of acidic rock that could be impacted by road improvements. If excavated, this acidic rock must be handled and neutralized properly. 3. Traffic Data Traffic counts were reevaluated qualitatively by NCDOT. The original volumes, reported at the July 19, 2000 meeting, are accurate. There is not enough seasonal variation to merit a more extensive study. a. Traffic Volumes Traffic volumes on Needmore Road are light. Current traffic volumes are 200 vehicles per day. The estimated volumes for the design year, 2025, are 400 vehicles per day. b. Accident Data Accident rates for Needmore Road were obtained for three years, 1996 to 1999, . on the stretch of Needmore Road from SR 1113 in Swain County to SR 1372 in Macon County. The state accident rate for two-lane, rural secondary roads is 261.86 accidents per 100 million vehicle miles traveled. The accident rate in Swain County is 196.08 accidents per 100 million vehicle miles traveled which is below the state average. There were no fatalities reported. The accident rate in Macon County is 754.72 accidents per 100 million vehicle miles traveled which is three times the state average. The majority of the accidents involved a single vehicle running off of the road. 4. Hydrology A hydraulic study was conducted in an area straddling the Macon Co./Swain Co. line. Please reference Figure 1. The existing road in this area has a history of flooding and washing out. The hydraulic study involved field surveys to establish cross sections and running the Hec-Ras model to replicate existing conditions. This baseline picture of existing conditions will be used to compare future alternatives. The study also established how often the road is flooding in its present state. The model was run for storm events ranging from the two- year storm to the 500-year storm: The elevations for the study used an assumed datum because the interest was in the difference in elevation between the road and the water surface elevation of the river during the various storm events. Based on this study, the road floods during the five-year storm. This means, technically, the road will be flooded every five years. However, during the two-year storm event, the water surface elevation of the river is only six inches from overtopping the road. 5. System Linkage Needmore Road is a local road that connects Graham County and Bryson City with Franklin, N.C. People commute from Bryson City and areas within Graham County to work and shop in Franklin. Alternate routes must be used when Needmore Road is impassible. a. Alternate Routes NC 28. Traffic originating in Graham County or the Needmore community can choose to travel NC 28 to Franklin. The distance is approximately 45 miles from both destinations. The distance is only 17 miles if you travel down Needmore Road. NC 28 is a two-lane road with switchback curves. The road hugs the mountain with steep drop- offs and no safety guardrail. US 19-23-74 to US 441. Traffic originating in Bryson City can use US 19-23-74 to US 441. This route would be approximately 89 miles. To travel to Franklin by way of Needmore Road is approximately 50 miles. US 19-74 to SR 1310. Commuters from Graham County can take US 19-74 toward Murphy and then turn back on SR 1310 (Wayah Road) in Macon County. This is approximately 52 miles in length. SR 1310 runs through Wayah State Game Refuge. b. Emergency Vehicles NCDOT Division 14 prepared a report addressing this issue. According to this report, EMS service is not eliminated when the road is flooded or impassible. Both counties have a mutual aid agreement to respond to isolated areas near the county lines. Additionally, an EMS unit is being considered for the West Swain Volunteer Fire Department which is located at the junction of US 74 and SR 1113. Macon Medical Center in Franklin, N.C. is the preferred hospital in this region. However, in a life- threatening situation, EMS personnel would transport a patient to the nearest medical facility. c. School Buses Currently, no school buses from either county use the unpaved portion of Needmore Road for their routes. 6. Land Use The existing land use in the area is very rural. There is some new development on SR 1110 (Wiggins Creek) and this road has been upgraded to secondary road standards as required by law. Currently, there is no land use plans for this area. The only requirement to build or develop in this area would be the normal building and septic permits. The county commissioners recently created by resolution a Watershed Association. But they only get involved when the commissioners refer the issue or project to them. The land bordering sections of the project is included in the Needmore Tract. The Needmore Tract is a 4,500-acre tract of land consisting of 3,400 acres in Swain County and 600 acres in Macon County. The remaining 500 acres are scattered along Burningtown and Tellico Creeks. This tract of land, originally held by Nanahala Power and Light Company, was recently transferred to Crescent Resources, which is a subsidiary of Duke Power Company. Crescent Resources works to develop land owned by Duke Power. The Land Trust of the Little Tennessee is trying to bring this tract of land under conservatorship in order to preserve it. Swain and Macon Counties have both passed resolutions asking that Crescent Resources preserve the traditional uses of the 4,500 acres tract. 7. Maintenance Costs Needmore Road must be routinely graded and new mateial added in areas that have been washed out or deeply rutted by storms. Routine grading, according to maintenance records, occurs twice a month. The ditches are cleaned out on an average of 2-3 times per year. The cost of this maintenance is estimated at approximately $17,000 per year. Conclusion The purpose and need for improving Needmore Road involves both environmental concerns (controlling sedimentation and maintaining the integrity of this valuable natural habitat) and socioeconomic concerns (providing a reliable and safe local road and reducing maintenance costs). While this road does not show a capacity problem, it does provide system linkage in an area that is not abundant in good roads in an area of North Carolina that is economically depressed. When this road is not operational, it increases travel time and out of pocket costs for the local traveler. When this road floods, it dumps additional sediment into a critical link of the Little Tennessee River that is a critical habitat. NCDOT has the opportunity to create partnerships among state and national agencies, private industry, and local citizens' groups to come up with alternatives and find a good solution. In a larger sense, it provides an opportunity to define common ground between the state legislative mandate to pave all unpaved secondary roads and the National and State Environmental Policy Acts which look to preserve the land in a healthy and balanced manner. :czgs? : J -? :/emu ;a• ` To U o ?i ?' a+ •?' : ?. ? ? .fit ^` ? ?n° •.+ 1 Inc . LLJ Z • W N L,L Z m Z c W Q N a N W cD r ;? ,?,g 1 3 W Z a 0 0 ZZ2= a: .,`, `` ?I 1c tI JO.LOQ O ¢ W Z tr) •?. In o;:U. 'Z ¢ c O 3 LN~? - ro7 V0Oc? LL. c N ac •? N - OQ>O> Z O c Z=nauZ, O a _ N g N C] o ?( m) ? ? Y 9 a N c? ? to 1? 2 fn (0 -'m ) In?- aO c C\l I , tnl O ` N. ; ? ?•\ i 101 ? W Z p / ao crt /0 'M rn bI N ,? - mi - NI Bf?S - ? ? co NO rr i.. ',, ?• IL -Z u Z i _ W O) COMMON NAME SCIENTIFIC NAME STATUS SWAIN COUNTY Critical Habitat Designation: Spotfin chub, Hybopsis monacha - Little Tennessee River, main channel from the backwaters of Fontana Lake upstream to the North Carolina-Georgia state line. Proposed Critical Habitat Designation: Appalachian elktoe, Alasmidonta raveneliana - Main stem of the Little Tennessee River (Tennessee River system), from the Lake Emory Dam at Franklin, Macon County, North Carolina, downstream to the backwaters of Fontana Reservoir in Swain County, North Carolina; and main stem of the Tuckasegee River (Little Tennessee River system), from the N.C. State Route 1002 Bridge in Cullowhee, Jackson County, North Carolina. downstream to the N.C. Highway 19 Bridge, north of Bryson City, Swain County, Norte. Carolina. Spruce-fir moss spider, Microhexura montivaga - Proposed critical habitat designation (see the October 6, 2000, Federal Register 65:59798-59814; Vertebrates Southern Appalachian saw-whet owl Olive-sided flycatcher Rafinesque's big-eared bat Hellbender Spotfin chub Eastern cougar Carolina northern flying squirrel Southern Appalachian red crossbill Spruce-fir moss spider Southern rock vole Sicklefin redhorse Eastern small-footed mvotis Indiana bat Aegolius acadicus C'ontopus borealis Corynorhinus rafrnesquii Cryptobranchus alleganiensis Cyprinella (=Hybopsis) monacha Felis concolor couguar Glaucomys sabrinus coloratus Loxia curvirostra Microhexura montivaga Microtus chrotorrhinus carolinensis Moxostoma sp. Myotis leibii Myotis sodalis FSC FSC FSC FSC Threatened Endangered* Endangered FSC Endangered FSC FSC FSC Endangered Southern Appalachian woodrat Neotoma floridana haematoreia FSC summer habitat) Southern Appalachian black-capped Parus atricapillus practicus FSC chickadee Olive darter Northern pine snake Southern water shrew Southern Appalachian yellow-bellied sapsucker Appalachian cottontail Invertebrates Appalachian elktoe Margarita River skimmer Clingman covert Februarv 26, 2001 Percina squaniata Pituophis melanoleucus melanoleucus Sorer palustris punctulatus Sphyrapicus varius appalaciensis Sylvilagus obscurus Alasmidonta raveneliana Macromia margarita Mesodon wheatleyi clingmanicus FSC FSC FSC FSC FSC Endangered FSC** FSC Page 44 of 51 COMMON NAME SCIENTIFIC NAME STATUS Spruce-fir moss spider Microhexura montivaga Endangered Lost Nantahala Cave spider Nesticus cooperi FSC Noonday globe (=snail) Patera clarki nantahala Threatened Littlewing pearlymussel Pegias fabula Endangered Tawny crescent butterfly Phycoides batesii FSC Diana fritillary butterfly Speyeria dana FSC* Vascular Plants Fraser fir Abies fraseri FSC Piratebush Buckleya distichophylla FSC** Mountain bittercress Cardamine clematitis FSC Glade spurge Euphorbia purpurea FSC Smoky Mountain manna grass Glyceria nubigena FSC Butternut Juglans cinerea FSC Sweet pinesap Monotropsis odoratc: FSC Rugel's ragwort Rugelia nudicaulis FSC Southern Oconee-bells Shortia galacifolia var. galacifolia FSC Mountain catchfiN Silene ovato F S C Virginia spiraea Spiraea virginiana Threatened Hairy blueberry Faccinium hirsutum FSC A Nonvascular Plants Rock gnome lichen Gymnoderma lineare Endangered A liverwort Plagiochila sullivantii var. sullivantii FSC A liverwort Sphenolobopsis pearsond FSC TRANSYLVANIA COUNTY Proposed Critical Habitat Designation: Appalachian elktoe, Alasmidonta raveneliana - Main stem of the Little River (French Broad River system), from the Cascade Lake Power Plant, downstream to its confluence with the French Broad River. Vertebrates Southern Appalachian saw-whet owl Aegolius acadicus FSC Green salamander Aneides aeneus FSC Bog turtle Clemmys muhlenbergii T(S/A)1 Rafinesque's big-eared bat Corynorhinus (=Plecotus) rafinesquii FSC* Hellbender Cryptobranchus alleganiensis FSC Carolina northern flying squirrel Glaucomys sabrinus coloratus Endangered Southern Appalachian red crossbill Loxia curvirostra FSC Southern Appalachian woodrat Neotomafloridana haematoreia FSC* Southern Appalachian black-capped Parus atricapillus practicus FSC chickadee Southern Appalachian yellow-bellied Sphyrapicus varius appalaciensis FSC sapsucker Appalachian cottontail Sylvilagus obscurus FSC Appalachian Bewick's wren Thryomanes bewickii altus FSC* Fchruarv `6 200/ 'd COMMON NAME SCIENTIFIC NAME STATUS Carolina grass-of-parnassus Harperella LENOIR COUNTY Vertebrates Red-cockaded woodpecker Invertebrates Tar River crayfish Vascular Plants Sensitive jointvetch Georgia indigo-bush Venus flytrap LINCOLN COUNTY Vascular Plants Dwarf-flowered heartleaf Michaux's sumac MACON COUNTY Critical Habitat Designation: Parnassia caroliniana FSC Ptilimnium nudosum Endangered Picoides borealis Endangered Procambarus medialis FSC Aeschynomene virginica ' Threatened* Amorpha georgiana var. georgiana FSC* Dionaea muscipula FSC* Hexastvlis nan flora Threatened Rhus michauxii Endangered* Spotfin chub, Hybopsis monacha - Little Tennessee River, main channel from the backwaters of Fontana Lake upstream to the North Carolina-Georgia state line. Proposed Critical Habitat Designation: Appalachian elktoe, Alasmidonta raveneliana - Main stem of the Little Tennessee River (Tennessee River system), from the Lake Emory Dam at Franklin, Macon County, North Carolina, downstream to the backwaters of Fontana Reservoir in Swain County, North Carolina. Vertebrates Bachman's sparrow Green salamander Bog turtle Olive-sided flycatcher Rafinesque's big-eared bat Hellbender Spotfin chub Cerulean warbler Sicklefin redhorse Indiana bat Southern Appalachian woodrat Olive darter Appalachian cottontail Appalachian Bewick's wren Aimophila aestivalis Aneides aeneus Clemmys muhlenbergii Contopus borealis Corynorhinus rafinesquii Cryptobranchus alleganiensis Cyprinella (=Hybopsis) monacha Dendroica cerulea Moxostoma sp. Myotis sodalis Neotoma floridana haematoreia Percina squamata Svlvilagus obscurus Thryomanes bewickii altus FSC FSC T(S/A)1 FSC FSC FSC Threatened FSC FSC Endangered (summer habitat/winter records) FSC FSC FSC FSC V February 26, 2001 Page 28 of 51 COMMON NAME SCIENTIFIC NAME STATUS Invertebrates Appalachian elktoe Margarita River skimmer Lost Nantahala Cave spider Littlewing pearlymussel Tawny crescent butterfly Carolina skistodiaptomus Diana fritillary butterfly Vascular Plants Piratebush Glade spurge West Indian dwarf polypody Small-whorled pogonia Butternut Fraser's loosestrife Sweet pinesap Carolina saxifrage Divided-leaf ragwort Mountain catchflv Virginia spiraea Nonvascular Plants A liverwort A liverwort A liverwort A liverwort A liverwort MADISON COUNTY Vertebrates Lake sturgeon Rafinesque's bia eared bat Hellbender Spotfin chub Gray bat Southern Appalachian woodrat Olive darter Paddlefish Invertebrates Oyster mussel Sculpted supercoil Alasmidonta raveneliana Macromia margarita Nesticus cooperi Pegias fabula Phyciodes batesii maconensis Skistodiaptomus carolinensis Speyeria diana Buckleya distichophylla Euphorbia purpurea Grammitis nimbata Isotria medeoloides Juglans cinerea Lysimachia fraseri Monotropsis odorata Saxifraga caroliniana Senecio millefolium Silene ovate Spiraea virginiana Cephaloziella obtusilobula Plagiochila sharpii Plagiochila sullivantii var. sullivantii Plagiochila virginica var. caroliniana Porella japonica var. appalachiana Acipenser fulvescens Corynorhinus (=Plecotus) rafinesquii Cryptobranchus alleganiensis Hybopsis monacha Myotis grisescens Neotoma floridana haematoreia Percina squamata Polyodon spathula Epioblasma capsaeformis Paravitrea ternaria Vascular Plants Piratebush Glade spurge Butternut Buckleya distichophylla Euphorbia purpurea Juglans cinerea Endangered FSC** FSC Endangered FSC FSC FSC FSC FSC FSC Threatened FSC FSC FSC* FSC FSC FSC Threatener FSC* FSC FSC FSC FSC FSC* FSC* FSC Threatened* Endangered FSC FSC FSC Endangered* FSC FSC FSC FSC FebruarY 26. 2001 gage 2v of 11?...'z ..?..._... ..,._?...Si_? ^-:_. _. _... ._ _. _.._ . F ? ...:.t>Irau.3:..e.:.......:...'?at•Srre?'r...u.?" ....?:..:?' - .?.. _. ? _ .. .___..u,...?.-. ... _. c4?. ,. •_. __.•_ STATE OF NORTH CAROLINA SUBJECT PROJECT DEPARTMENT OF TRANSPORTATION COUNTY DIVISION OF HIGHWAYS HIGHWAY BUILDING PREPARED BY DATE STATION P. O. BOX 23201 CHECKED BY DATE . ?? STIt No- iHEiT OF RALEIGH. NORTH CAROLINA 2761 / f ! t !? Zfi a ? {?-i . _ Z ??3 A-ML tcn -- 2oo.. i ES?,ina A Fl- . 26 Aw,s Sec/,?men ? ?v?rr? e eri? ? er? ? 1 1, .... , ,,,as ? ? _ _ .. ??....._ J r.' _.._.... . ??. w: ?r a,....w.'J?J.. . e. ....i . ..._ .. <.......cr. .......w..-?..... ?.. ... icSa.:1.1SwS.-.....{?••.x:i:?:- Subject: [Fwd: Needmore Rd.(cost estimate)] Date: Mon. 19 Jun 2000 07:44:53 -0400 From: "Joel Setzer" <jsetzer@dot.state.nc.us> Organization: North Carolina Department of Transportation To: Karen Capps PE <kcapps@dot.state.nc.us> -- CC: Rick Styles <rstyles@dot.state.nc.us> Per your request. Subject: Needmore Rd.(cost estimate) Date: Wed, 14 Jun 2000 11:41:18 -0500 From: Wayne Lynch <wlynZ:h@dot.state.nc.us> Organization: North Carolina Department of Transportation To: Joel Setzer <jsetzer@dot.state.nc.us> CC: Ralph Cannady <rcannady@dot.state.nc.us> 1 1 s Joel, Approx. maint.cost for Needmore Rd. with normal winter weather and machining on average of 2 times per month is as follows. I estimated 2 hrs. per machining. spot stab, 200 tons ABC stone @ 5.60/ton = $1120.00 25 hrs. for SWB dump @ 9.58/hr = 293.50 25 hrs. for TW @ 15.85/hr = 396.25 48 hrs. for grader @ 16.73/hr = 803.04 48 hrs. for operator @ 15.85/hr = 760.80 Approx. Total Cost = 3373.59 _ I of] 6/20/00 8:28 Alit 4,u.?...`?, 5.?...ri.?nt ?.y ...-. .?.. .. f .. ._.....W..y.?ciw_t.ru.rr.?.t.3 ... .a.u. rn r., ,...[..n.I.....?iE_..%CS.r,a....?.._, .. _i. x .v+..a. r.. r.. ?.. 1?.-?. ter.. 1 Subject: Needmore Rd - Maint costs Date: Thu, 15 Jun 2000 16:09:24 -0400 From: Rick Styles <rstyles@dot.state.nc.us> Organization: North Carolina Department of Transportation To: Karen Capps PE <kcapps@dot.state.nc.us> Karen, It will cost about $13,000.00 dollars per year to maintain the section of roadway in Swain county. This includes normal and routine maintenance cost, such as: 1- Machining $2300.00 2- Spot Stabilization $3400.00 3- Seasonal Repair $5500.00 4- Snow Removal & De-icing $1800.00 * At least once a year the low lying sections of the road are flooded. The typical section including roaFway and shoulders must be re-built. I hope this is helpful. Rick Styles I of 1 6/20100 8:19 AM Sharp Curve in Swain County Showing Poor Sight Distance And Space Constraints Sharp Curve Showing Poor Sight Distance Needmore Road Note Close Proximity of River Ruts Formed in Needmore Road After Heavy Rainfall K1 i` ?x 1 Needmore Road PURPOSE AND NEED s ALTERNATIVES REPORT SR 1364 / SR 1114 (NEEDMORE ROAD)`-' MACON COUNTY SWAIN COUNTY STATE PROJECT NO.: 6.972062T STATE PROJECT NO.: 6.992193 C*41 0? z 14 JU? 3 2000 -IAORT _ Introduction Proposed Action Purpose and Need Project Setting Existing Conditions Project History Proposed Alternatives Project Cost Figure 1 Figure 2 Figure 3 Appendix A Appendix B Appendix C TABLE OF CONTENTS Vicinity Map Area of Concern Typical Section 1 1 1 1 2 2 3 3 INTRODUCTION An environmental document is being prepared for this project in accordance with the requirements set forth in the State Environmental Policy Act (SEPA). This is an informational document intended for use by state and federal agencies and the public. As such, it represents a disclosure of relevant environmental information concerning the proposed action. Although this project is a state funded project and is not schduled in the Transportation Improvement Program (TIP), there are environmental and socio-economic impacts that need to be properly evaluated. PROPOSED ACTION Needmore Road (SR 1364/ SR 1114) is located in Macon and Swain Counties. It is a local rural route that is located beside the Little Tennessee River. The proposed improvements call for widening, paving, and upgrading the unpaved portion of Needmore Road. PURPOSE AND NEED FOR THE PROJECT The need for the proposed project is to improve the quality of travel for local residents that use Needmore Road and to reduce sedimentation into the Little Tennessee River. Needmore Road is designated as a local rural route between Franklin, N.C. and Bryson City, N.C. Needmore Road is prone to flooding due to its location in the Little Tennessee River floodplain. Frequent floods wash sediment across the roadway and into the Little Tennessee River, make the road impassable except in four-wheel drive vehicles, and produce substantial maintenance requirements. The road has substandard pavement width and poor sight distance in some locations. Please reference Appendix A The purpose of the proposed action is to upgrade the road in order to ensure the safety of the traveling public, minimize the washing of sediment into the Little Tennessee and to provide a quality local road. PROJECT SETTING Needmore Road runs between Swain and Macon Counties from SR 1113 in Swain County to SR 1374 in Macon County. Please reference Figure 1. The project begins at the paved portion of Needmore Road located in Swain County and terminates at SR 1370 in Macon County. The road winds through a very rural setting, loosely following the Little Tennessee River. The view varies between a tree lined road with camping areas to narrow passes where the river flows close on one side of the road and rock hills composed of pyritic rock (acid rock) abut the other side. The Little Tennessee River has its headwaters starting in Georgia. It flows through the town of Franklin, N.C. and feeds Fountana Lake, located on the border of North Carolina and Tennessee, before flowing on into Tennessee. The stretch of the Little Tennessee River from Franklin, N.C. to Fontana Lake is considered to be one of the most significant aquatic habitats in North Carolina as well as the southeastern United States. The Appalachian elktoe mussel, little-wing pearly mussel, and spotfin chub, all listed as Federally endangered species, have been found in abundance in this river. For a list of Federally protected species for these two counties, reference Appendix B. The reach is designated as a critical habitat for the spotfin chub. Virginia spirea, a threatened plant, also occurs in this area. The Little Tennessee River also supports numerous other rare species as well as a substantial smallmouth bass fishery. EXISTING CONDITIONS The paved portion of Needmore Road in Swain County has an existing cross-section composed of two nine foot lanes with grass shoulders of varying widths. The unpaved section of Needmore Road in both Swain and Macon Counties has a hard packed surface of dirt and gravel and a cross-section that varies in width from 16 feet to 20 feet. The existing alignment in Swain County has a series of sharp curves with below standard sight distance. The paved portion of Needmore Road in Swain County has a 35- mph posted speed limit. Currently, the traffic volume is estimated at 200 vehicles per day. The projected traffic volume in the design year 2025 is 400 vehicles per day. In Macon County, Needmore Road is carried over Tellico Creek, a tributary to the Little Tennessee, by a single span, steel I-beam bridge. The bridge has timber backwalls and timber railings. The clear roadway width is 19.1 feet. This structure will not be replaced under this project. In Swain County, there are areas of pyritic rock that could be impacted. If excavated, this rock must be handled and neutralized properly or acid runoff from the cuts will leach into the river. PROJECT HISTORY The improvements to Needmore Road began as a NCDOT Division 14 Design/Construct project funded separately by Swain County, District 2, and Macon County, District 3. In May 1997, District 3 applied for a Nationwide No. 14 Permit to extend existing culverts and add new ones where required in conjunction with the widening and paving of Needmore Road in Macon County. The project was being processed under State Minimum Criteria. At a Section 7 consultation meeting, held on August 11, 1997, concerns were raised over the potential for secondary impacts due to increased traffic volumes, secondary land development, and the amount of land slated to be disturbed. Therefore, this project does not meet the guidelines for State Minimum Criteria and must be processed as a State Environmental Assessment/Finding of No Significant Impact (State EA\FONSI). The U.S. Army Corps of Engineers has requested that Swain and Macon Counties submit a combined application for an Individual Permit for the proposed construction on Needmore Road. PROPOSED ALTERNATIVES The four alternatives for this project ar6,1-build; ave in place; ide ave, and upgrade the existing alignment to minimum secondary road standards`;?and a combination of pave in place and widen where necessary. The no-build alternative (Alternative # 1) would maintain the road in its existing condition. The pave in place alternative (Alternative # 2) would pave the existing alignment with no additional improvements. The third alternative (Alternative # 3) proposes to improve the existing unpaved portion of SR 1364 / SR 1114 (Needmore Road) by widening it to two 9-foot lanes with 5-foot grass shoulders and culverts and ditches where required. The improvements will follow the existing alignment except where it is necessary to shift that alignment to minimize impacts. Swain County has an environmental area of concern as shown in Figure 2. The road in this area is 16 feet wide with the river on one side of the road and acid rock the other side. Alternative 3a in this area proposes to widen the road toward the Little Tennessee River. Alternative 3b proposes to widen away from the river and excavate into the mountainside. Both alternatives propose to raise the existing road three feet to correct the flooding problem in this area. The fourth alternative is a combination of Alternative 2 and Alternative 3. It will also have the same two options as Alternative 3 in Swain County but proposes to pave in place where there is adequate roadway width. PROJECT COST The current project cost for the improvements to Needmore Road are summarized in the table below. ALTERNATIVES CONSTRUCTION COSTS Alternative 1 $16,373.59 Alternative 2 $ 431,250.00 Alternative 3a $ 620,000.00* Alternative 3b $ 1,560,000.00 Alternative 4a $ 582,082.00* Alternative 4b $ 629,332.00 * Note: Alternatives 3a and 4a do not include the cost of any mitigation. * See Appendix C for Cost Estimates. all, \= ,: t' U o I I °.? cm t ,? w'AC?// S oQI1?? _ O Z ? Ln li \ ` . JJ ? Z v_ F c w > LO 1 1?r? _ •?l =?Z CO O ml J\ ?` I _tQ=QQ c w Z a' C`1 -I op -I,- a c c -?__ YD? Q Q W W p l` O 3 N ?-_.. oZ?-Z U cuo Q?>_Q> O = C U Z all' LO <m L) O - n? ? ? ?I S: `cl o c ` C v CD ; Ln \ 6 3 c' i <z _ZZ ? _ NI C i E, ?I?? Q ?j r (7 ccv ' Q ??I ml c _? ,?? - I C t?0*1 i w w `c I c :z c ??p m c (rj I N B(?gb 1 N ?- _ m Cl) - O w OBI ? J 11; 76 z C. H Y:. ? ? 1 _ c l1 M A ACC ` L N .e I 4llF••. c 1.4 1 at. 1 'Pt './t ` , QI .16 1 ? ?.1 m U O _U ?Y N G C c OI - ZHQLUZi O CL 3 vi ..??` -? m 9 tl w 00 I N N % I c O M Um UO S : ILnl c - 6 .3 Z Y C- Ln i - / kl` ??. ?/ I Nl O w a : I Z 1 - W c 0 a ` 10 I m U1 c c R ? l r ?I rnl Ic c NI Bf?sb . _ ••- IDI Q _ Coto t E'I (0 ?v LL o d-z i ' a a v ri w a J Z U m 1. . " w ,1 11 cr m 8 . N c_n D_ U- v w z a v W a C ° Z w Ln LL- ?- Z N Q N Q N F c w cD 1- a }H} w Z< p ('I Z - O O Q =aQ E N ¢ O ZZ20? OP ? ~ Z ¢ 0 = a ?' ' zQ Z OLL03 (u ::E ¢ o N 24-OV0 Q w w ~ZN?? C O Z Z TYPYCAT. Sx', ION State Road Number: SR 1114 Needmore Road Swam County I G.:HpF. 18' P?v YtE,vT ?*-- 507'7-0,V i:h`ANNEL Y- i I A NORMAL CROWN =114" PER FT., MAX. SUPEREL. - to B SHDR SLOPE -1" PER FT., MAX. ROLLOVER - b% C CUT SLOPE : 1:1 MAX. OR AS SLOPED STAKED D FILL SLOPE: 11/2;1 MA FOR SOIL OR AS SLOPED STAKED Sharp Curve in Swain County Showing Poor Sight Distance And Space Constraints Sharp Curve Showing Poor Sight Distance Needmore Road Note Close Proximity of River Ruts Formed in Needmore Road After Heavy Rainfall f _ s'? aY 'dt Y '?}."_ ykX?f `. v ? ? ? ? Needmore Road COMMON NAME SCIENTIFIC NAME STATUS Vascular Plants Sensitive jointvetch Aeschynomene virginica Threatened* Georgia indigo-bush Amorpha georgiana var. georgiana FSC* Venus flytrap Dionaea muscipula FSC* LINCOLN COUNTY Vascular Plants Dwarf-flowered heartleaf Hexastylis naniflora Threatened Michaux's sumac Rhus michauxii Endangered* MACON COUNTY Critical Habitat Designation: Spotfin chub, Hybopsis monacha - Little Tennessee River, main channel from the backwaters of Fontana Lake upstream to the North Carolina-Georgia state line. Vertebrates Bachman's sparrow Aimophila aestivalis FSC Green salamander Aneides aeneus FSC Bog turtle Clemmys muhlenbergii T(S/A)' Olive-sided flycatcher Contopus borealis FSC Rafinesque's big-eared bat Corynorhinus rafinesquii FSC Hellbender Cryptobranchus alleganiensis FSC Spotfin chub Cyprlnella (=Hybopsis) monacha Threatened Cerulean warbler Dendroica cerulea FSC Sicklefin redhorse Moxostoma sp. FSC Indiana bat Myotis sodalis Endangered Southern Appalachian woodrat Neotoma floridana haematoreia FSC* Olive darter Percina squamata FSC Appalachian cottontail Sylvilagus obscurus FSC Appalachian Bewick's wren Thryomanes bewickii altus FSC Invertebrates Appalachian elktoe Alasmidonta raveneliana Endangered Margarita River skimmer Macromia margarita FSC** Lost Nantahala Cave spider Nesticus cooper! FSC Littlewing pearlymussel Pegias fabula Endangered Tawny crescent butterfly Phydodes batesii maconensis FSC Carolina skistodiaptomus Skistodiaptomus carolinensis FSC Diana fritillary butterfly Speyerla diana FSC Vascular Plants Piratebush Buckleya distichophylla FSC Manhart's sedge Carex manhardi FSC Glade spurge ' Euphorbia purpurea FSC West Indian dwarf polypody Grammitis nimbata FSC Small-whorled pogonia Isotna medeoloides Threatened December 20, 1999 Page 28 of 50 COMMON NAME SCIENTIFIC NAME STATUS Butternut Juglans cinerea FSC Fraser's loosestrife Lysimachia fraseri FSC Sweet pinesap Monotropsis odorata FSC* Carolina saxifrage Saxifraga caroliniana FSC Divided-leaf ragwort Senecio millefolium FSC Mountain catchfly Silene ovata FSC Virginia spnaea Spiraea virginiana Threatened Nonvascular Plants A liverwort Cephaloziella obtusilobula FSC* A liverwort Plagiochila sharpii FSC A liverwort Plagiochila sullivantii var. sullivantii FSC A liverwort Plagiochila virginica var. caroliniana FSC A liverwort Porella japonica var. appalachiana FSC MADISON COUNTY Vertebrates Lake sturgeon Acipenser fulvescens FSC* Rafinesque's big-eared bat Corynorhinus (=Plecotus) raftnesquii FSC* Hellbender Cryptobranchus alleganiensis FSC Spotfin chub Hybopsis monacha Threatened* Olive darter Percina squamata FSC Paddlefish Polyodon spathula FSC Invertebrates Oyster mussel Epioblasma capsaeformis Endangered* Sculpted supercoil Paravitrea ternaria FSC Vascular Plants Piratebush Buckleya distichophylla FSC Glade spurge Euphorbia purpurea FSC Butternut Juglans cinerea FSC Carolina saxifrage Saxifraga caroliniana FSC Mountain catchfly Silene ovata FSC MARTIN COUNTY Vertebrates Henslow's sparrow Ammodramus henslou* FSC Invertebrates Chowanoke crayfish Orconectes virginiensis FSC Vascular Plants Savanna cowbane Oxypolis ternata FSC December 20, 1999 Page 29 of 50 COMMON NAME SCIENTIFIC NAME STATUS Vascular Plants Small-whorled pogonia Isotria medeoloides Threatened SWAIN COUNTY Critical Habitat Designation: Spotfin chub, Hybopsis monacha - Little Tennessee River, main channel from the backwaters of Fontana Lake upstream to the North Carolina-Georgia state line. Vertebrates Southern Appalachian saw-whet owl Aegolius acadicus FSC Olive-sided flycatcher Contopus borealis FSC Rafinesque's big-eared bat Corynorhinus rafinesquii FSC Hellbender Cryptobranchus alleganiensis FSC Spotfin chub Cyprinella (=Hybopsis) monacha Threatened Eastern cougar Felis concolor couguar Endangered* Carolina northern flying squirrel Glaucomys sabrinus coloratus Endangered Southern Appalachian red crossbill Loxia curvirostra FSC Southern rock vole Microtus chrotorrhinus carolinensis FSC Sicklefm redhorse Moxostoma sp. FSC Eastern small-footed myotis Myotis leibii FSC Indiana bat Myotis sodalis Endangered Southern Appalachian woodrat Neotomafloridana haematoreia FSC* Southern Appalachian black-capped Parus atricapillus practicus FSC chickadee Olive darter Percina squamata FSC Northern pine snake Pituophis melanoleucus melanoleucus FSC Southern water shrew Sorer palustris punctulatus FSC Southern Appalachian yellow-bellied 'Sphyrapicus varius appalaciensis FSC sapsucker Appalachian cottontail Sylvilagus obscures FSC Invertebrates Appalachian elktoe Alasmidonta raveneliana Endangered Margarita River skimmer Macromia margarita FSC** Clingman covert Mesodon wheadeyi clingmanicus FSC Spruce-fir moss spider Microherura montivaga Endangered Lost Nantahala Cave spider Nesticus cooperi FSC Noonday globe (=snail) Patera clarki nantahala Threatened Littlewmg pearlymussel Pegias fabula Endangered Tawny crescent butterfly Phycoides batesii FSC Diana fritillary butterfly Speyeria diana FSC* Vascular Plants Fraser fir Abies fraseri FSC Piratebush Buckleya distichophylla FSC** Mountain bittercress Cardamine clematitis FSC Manhart's sedge Carex manhartii FSC December 20, 1999 Page 43 of 50 COMMON NAME SCIENTIFIC NAME STATUS Fraser's loosestrife Lysimachia fraseri FSC Sweet pinesap Monotropsis odorata FSC Mountain sweet pitcher plant Sarracenia jonesii Endangered Southern oconee-bells Shortia galacifolia var. galacifolia FSC Nonvascular Plants Gorge moss Bryocrumia vivicolor FSC Rock gnome lichen Gymnoderma lineare Endangered A liverwort Plagiochila sharpii. FSC A liverwort Plagiochila sullivantii var. sullivantii FSC A liverwort Plagiochila virginica var. caroliniana FSC TYRRELL COUNTY Vertebrates American alligator Alligator mississippiensis T(S/A) Red wolf Canis rufus EXP Bald eagle Haliaeetus leucocephalus Threatened Red-cockaded woodpecker Picoides borealis Endangered UNION COUNTY Vertebrates Carolina darter Etheostoma collis collis FSC Invertebrates Pee Dee crayfish ostracod Dactylocythere peedeensis FSC* Atlantic pigtoe Fusconaia masoni FSC Carolina heelsplitter Lasmigona decorata Endangered Savanna lilliput Tozolasma pullus FSC Carolina creekshell Villosa vaughaniana FSC Vascular Plants Georgia aster Aster georgianus C 1 Schweinitz's sunflower Helianthus sehweinitzii Endangered Virginia quillwort Isoetes virginica FSC Heller's trefoil Lotus helleri FSC VANCE COUNTY Vertebrates Bald eagle Haliaeetus leucocephalus Threatened Pinewoods shiner Lythrurus matutinus FSC Invertebrates Dwarf wedgemussel Alasmidonta heterodon Endangered Yellow lance Elliptio lanceolata FSC Yellow lampmussel Lampsilis cariosa FSC December 20, 1999 Page 45 of 50 STATE OF NORTH CAROLINA SUBJECT PROJECT DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS COUNTY HIGHWAY BUILDING PREPARED BY ?Gi3c DATE !?•' ' °O STATION P. O. BOX 25201 RALEIGH. NORTH CAROLINA 27611 CHECKED BY DATE STIR NO SHEET OF s i _ .3A 1 ?. O? F 11 i r? ?[i vcr j .; - i Z ?c O t _ _ __. ?c2o occ. ov r 3 20c- /1crn?yo / cs cc ?oclc? - _/, 30?? . uo <s_?? , ,.^,• o0 GA'L' J< .f Q ....._. ?_?cs ?• (./Z?/528_"J a J.?c: /Y?, /C?, i 7 !7C0 'M• lCi vP RUC ' J ??,noi7 r ?ray? / U?G?acc PG.c /? Pl?cc 3.oa? . _ 1175, GOC m•/c) _ . coo ° , ., Is. S C-Gi North Carolina Department of Transportation Preliminary Estimate TIP No. Candidate Project Route SR-1114 (Swain) and SR-1364 (Macon) From SR-1113 (Swain) to SR-1374 (Macon) Typical Section Paring (18') and Shoulder Construction Prepared By: Doug Lane 6/12/00 Requested By: Karen Capps (PD & EA, Rm 416) 6/12/00 [Page] County: Swain-Macon CONSTR.COST 5575,0110 Line Item Des Sec No. Description Quantity Unit Price Amount Fine Grading 38,600 SY $ 1.00 $ 38 600.00 8" Aggregate Base Course 13.750 Ton $ 15.00 $ 206,250.00 Asphalt Cement 199 Ton $ 250.00 $ 49.750.00- 2" I-1 Surface Course 3.200 Ton $ 35.00 $ 112.000.00 Shoulder Construction 29 MLF $ 800.00 $ 23.200.00 Traffic Control 3.31 Miles $ 5,000.00 $ 16.550.00 Thermo and Markers 3.31 Miles $ 8,000.00 $ 26,480.00 T r.*1, '2 2-1 luv a ... Misc. & Mob (10% Paving Only) 1 LS $ 47.170.00 - - -- - - --? %-UHLd 44- 1. %,oaL ... ... ... ... ... . .. ... ... .................. 520,000.00 E. & C. (10%) ........................ .................. $ 55,000.00 DDL Cost: Construction Cost ........................ .................. S 575,000.00 DDC Cost: $575,000 x 0.75 = $431,250 /3-31 Miles= $173,716 /Mile Say $175,000/ Mile Subject: [FNvd: Needmore Rd.(cost estimate)] Date: Mon, 19 Jun. 2000 07:44:53 -0400 From: "Joel Setzer" <jsetzer@dot.state.nc.us> Organization: North Carolina Department of Transportation To: Karen Capps PE <kcapps@dot. state. nc. us> CC: Rick Styles <rstyles@dot. state. nc.us> Per your request. - - ------- - -- - Subject: Needmore Rd.(cost estimate) Date: Wed, 14 Jun 2000 11:41:18 -0500 From: Wayne Lynch <wlynCh@dot.state.nc.us> Organization: North Carolina Department of Transportation To: Joel Setzer <jsetzer@dot.state.nc.us> CC: Ralph Cannady <rcannady@dot.state.nc.us> 1 Joel, Approx. maint.cost for Needmore Rd. with normal winter weather and machining on average of 2 times per month is as follows. I estimated 2 hrs. per machining. spot stab, 200 tons ABC stone @ 5.60/ton = $1120.00 25 hrs. for SWB dump @ 9.58/hr = 293.50 25.hrs. for TW @ 15.85/hr = 396.25 48 hrs. for grader @ 16.73/hr = 803.04 48 hrs. for operator @ 15.85/hr = 760.80 Approx. Total Cost = 3373.59 I of 1 6/20/00 8:28 AM Subject: Needmore Rd - Maint costs Date: Thu, 15 Jun 2000 16:09:24 -0400 From: Rick Styles <rstyles@dot. state. nc. us> Organization: North Carolina Department of Transportation To: Karen Capps PE <kcapps@dot.state.nc.us> Karen, It will cost about $13,000.00 dollars per year to maintain the section of roadway in Swain county. This includes normal and routine maintenance cost. such as: 1- Machining $2300.00 2- Spot Stabilization $3400.00 3- Seasonal Repair $5500.00 4- Snow Removal & De-icing $1800.00 * At least once a year the low lying sections of the road are flooded. The typical section including roadway and shoulders must be re-built. I hope this is helpful. Rick Styles I of 1 6/20/00 8:19 AM