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HomeMy WebLinkAbout19960642 Ver 1_Complete File_19960703N. C. DEPARTMENT OF TRANSPORTATION TRANSMITTAL SLIP DATE '. TO: ` REF. NO. OR ROOM, BLDG. ?nl FROM: REF. NO. OR ROOM, BLDG. ACTION ?'NOTE AND FILE ? PER OUR CONVERSATION ?..NOTE AND RETURN TO ME ? PER YOUR REQUEST - ?..RETURN WITH MORE DETAILS ? FOR YOUR APPROVAL' ? °NOTE AND. SEE ME ABOUT THIS'. ?. FOR YOUR INFORMATION -. ?''PLEASE ANSWER : ? FOR YOUR COMMENTS ? PREPAREREPLY FOR MY SIGNATURE ? SIGNATURE ? TAKE APPROPRIATE ACTION ?'INVESTIGATE AND REPORT COMMENTS: iLEJ p ? "p STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION JAMES B. HUNT JR. GOVERNOR P.O. BOX 25201, RALEIGH, N.C. 27611-5201 March 19, 1999 U.S. Army Corps of Engineers Regulatory Field Office P.O. Box 1890 Wilmington, North Carolina 28402-1890 Attention: Mr. Michael Smith Assistant Chief ?t? o 2: E. NORRRS TOLSON SECRETARY t 1 ? to ? ???, t P 4 Subject: Ashe County, Replacement of Bridge No. 352 over Buffalo Creek on SR 1506; Federal Aid Project No. BRZ-1506(1); State Project No. 8.2710701; TIP No. B-3109; COE ID 199820471 (Reissue of Action ID 199602387); DWQ # 960601. Dear Sir: The US Army Corps of Engineers (USACE) issued a Clean Water Act §404 Nationwide Permit No. 23 (NWP No. 23), or Categorical Exclusion (CE), for the subject project on July 9, 1996, and reissued a NWP No. 23 for the same property on February 4, 1998. The reissued permit expires on February 4, 2000. The replacement of Bridge No. 352 over Buffalo Creek on SR 1506 is not scheduled to be let to construction until December 21, 1999. Consequently, the North Carolina Department of Transportation (NCDOT) needs to renew authorization for this work. The NCDOT received authorization under Section 404 NWP No. 6 and the corresponding Section 401 Water Quality Certification from the North Carolina Division of Water Quality (DWQ) to perform foundation investigations for the new bridge. Bridge No. 352 will be constructed on approximately the same alignment, along with associated approach improvements. Consequently, the March 1996 CE document remains valid in terms of land use, architectural, archaeological, noise and air, and natural resource impacts associated with the in-place replacement of Bridge No. 352. Fill in jurisdictional wetlands will not exceed 0.33 ac (0.1 ha). Buffalo Creek does not support trout, and is not designated as a Wild Public Mountain Trout Water by the North Carolina Wildlife Resources Commission (NCWRC). Bridge construction will still be accomplished so that wet concrete does not contact stream water. The scope of the project has changed, however, since reissuing the project's NWP No. 23 on July 9, 1996. The temporary detour bridge proposed in the March 1996 CE document will no longer be constructed. Owners of a failed septic field situated on the southwest quadrant of Bridge No. 352 constructed a new septic field between their building and the existing bridge. The new septic field lies under the location of the temporary on-site detour originally proposed in the March 1996 CE document. In order to avoid taking the property and rendering the new septic field in-operable, the NCDOT proposed in the enclosed October 1998 Addendum to the CE document a new temporary detour. A modified railroad corridor along the community's east end will comprise the new detour. The NCDOT will utilize some of the wider areas of the railroad corridor to construct several vehicular passing zones. The NCDOT proposes to install guardrails along the south side of the detour and cover the railroad bed with gravel. The abandoned railroad corridor lies parallel to Buffalo Creek and crosses an unnamed tributary to Buffalo Creek near the southern end of the detour. The DWQ best usage classification for the unnamed tributary is the same classification, Class C Trout Waters, as the stream it flows into. This detour will not impact Buffalo Creek or the slopes above the creek. According to a March 19, 1999 discussion with NCDOT Hydraulics, the culvert at the tributary to Buffalo Creek will not be extended. The NCDOT will strictly adhere to the recommendations set forth in Guidelines for Construction of Highway Improvements Adjacent to or Crossing Trout Waters in North Carolina (Joint Agency Committee, 1997). In addition to streams, the new proposed detour will not impact any jurisdictional wetlands. Finally, NCDOT biologists surveyed the railroad corridor for the five federally-protected species listed under Ashe County. The federally-protected species include spreading avens (Geum radiatum), Roan Mountain bluet (Houstonia montana), Heller's blazing star (Liatris helleri), Virginia spiraea (Spiraea virginiana), and rock gnome lichen (Gymonderma lineare). Results of the survey revealed no federally-protected species situated within the railroad corridor. Biological conclusions of "No Effect" were provided for the five species within the new temporary detour corridor. Please see the enclosed July 1998 Addendum to the Natural Resources Technical Report for additional natural resource information on the new temporary detour. The NCDOT requests that the USACE reauthorize this bridge replacement project in Ashe County under a Section 404 NWP No. 23. The NCDOT also requests that the DWQ reauthorize this project under a Section 401 Water Quality Certification. If you have any questions or need any additional information, please contact Mr. Tim Bassette at (919) 733-7844, extension 305. Sincerely, r, z -7 William D. Gilmore, P.E., Manager Project Development & Environmental Analysis Branch HFV/pct cc w/encl.: Mr. John Thomas, USACE, Raleigh Mr. John Dorney, DWQ, Raleigh Mr. William Rogers, P.E., Structure Design Mr. Joe Mickey, WRC, State Road Mr. Whit Webb, P.E., Program Development Mr. Len Hill, P.E., Highway Design Mr. A. L. Hankins, P.E., Hydraulics Unit Mr. Tom Shearin, P.E., Roadway Design Mr. W.E. Hoke, P.E., Division 11 Engineer A Ashe County Bridge No. 352 on SR 1506 Over Buffalo Creek Federal Project BRZ-1506(1) State Project 8.2710701 B-3109 ADDENDUM TO CATEGORICAL EXCLUSION U.S. DEPARTMENT OF TRNASPORTATION FEDERAL HIGHWAY ADMINISTRATION AND N. C. DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS APPROVED: 10--30 98 v? _y, i-"'? Dat?;rWilliam D. Gilmore, P.E., Manager Planning and Environmental Branch Date cholas Graf, P. L Division Administrator, FHWA . Ashe County Bridge No. 352 on SR 1506 Over Buffalo Creek Federal Project BRZ-1506(1) State Project 8.2710701 B-3109 ADDENDUM TO CATEGORICAL EXCLUSION October, 1998 Documentation Prepared in Planning and Environmental Branch By: 10 5D 4 A, J- ? 1), ? ' Date o 41i lliams Project Planning Engineer to-30-98 Wa-fhQ ,67141?- Date Wayne Elliott Bridge Project Planning Engineer, Unit Head /°'3°-q? r q/. . N'icac??` CARO ? aFESS/p y,9 ': t SEAL • 022552 Date Lubin V. Prevatt, P. E. Assistant Manager Planning and Environmental Branch t Ashe County Bridge No. 352 on SR 1506 Over Buffalo Creek Federal Project BRZ-1506(1) State Project 8.2710701 B-3109 I. BACKGROUND A Categorical Exclusion for the subject project-was approved on March 19, 1996. The document recommended replacement of Bridge NO. 352 with a new bridge at the existing location. Traffic was to be maintained on a temporary one-lane bridge to the south during construction. II. DISCUSSION Since the time of the original planning document, changes in the field have occurred. An old septic field associated with the building on the southwest quadrant of the bridge is no longer functioning and the owners have built a new septic field between their building and the existing bridge. The new septic field lies under the proposed location of the temporary onsite detour as well as the fill from the wider approaches on the new bridge. The new septic field would be rendered in-operable and likely require the taking of the property including the building since there is not another location for a septic field on the property. NCDOT has pursued another alternate to avoid permanent impacts to the property. There is an old railroad bed (no longer in use) on the east end (see Figure 2) of the community sometimes used as a route to haul in single-wide mobile homes. NCDOT determined that with some modification, the corridor could be used as a detour route. The majority of the corridor will support only one lane of traffic. Therefore, NCDOT will utilize some of the wider areas of the corridor to construct several passing zones so oncoming cars will be able to safely pass one another. In addition, guardrail will be installed along the south side of the detour and the roadbed will be covered with gravel. Both the Division Engineer and the Roadway Design Unit concur in the use of this roadbed as a temporary detour. As proposed in the original document, Bridge No. 352 will be replaced on the existing location with a new bridge approximately 60 meters (200 feet) long at approximately the same elevation. Approach work will extend approximately 30 meters (100 feet) from either end of the bridge. The design speed for the project will be 50 km/h (30 mph). A design exception will be required due to design speed. The cost of the project is $988,000 with $750,000 in construction costs and $138,000 in Right of Way Costs. IV. ENVIRONMENTAL IMPACTS The original environmental document remains valid in regard to impacts such as land use, architectural, archaeological, and noise and air issues. An NCDOT biologist returned to the site to survey the corridor. Virginia spiriea was of particular concern because the habitat was present. In conducting the survey, the biologist determined that there would be no effect on this species. Other natural resources impacts will be limited since the vast majority of construction is expected to take place within the bounds of the existing "clear cut" corridor. V. PUBLIC INVOLVEMENT On December 11, 1997, a public meeting was held to discuss the various alternate concepts under consideration. Of all the concepts considered, the alternate proposed in this document was the only concept with no public opposition. VI. SUMMARY OF PROJECT COMMITTMENTS All standard procedures and measures will be implemented to avoid or minimize environmental impacts. All practical Best Management Practices (BMP's) will be included and properly maintained during project construction. In accordance with the provisions of Section 404 of the Clean Water Act (33 U.S.C. 1344), a permit will be required from the Corps of Engineers for the discharge of dredged or fill material into "Waters of the United States." An Army Corps of Engineers Nationwide Permit # 23 will likely be applicable to this project. Prior to issue of the Army Corps of Engineers Nationwide Permit # 23 a North Carolina Division of Environmental Management (DEM) Section 401 Water Quality General Certification must be obtained. While Ashe County is designated as a "trout county," Buffalo Creek does not support trout. Therefore no specific measures to protect trout will be required. Foundation investigations will be required on this project. The investigation will include test borings in soil and/or rock for in-site testing as well as obtaining samples for laboratory testing. This may require test borings in streams and/or wetlands. The temporary bridge and alignment will be removed and restored to the original contours. ....... ...... . Disturbance to riparian vegetation should be kept to a minimum during bridge replacement. Native trees, shrubs, and grasses will be planted in disturbed areas to replace those removed by construction. Construction must be accomplished so that wet concrete does not contact stream water. This will lessen the chance of altering the stream's water chemistry. Consideration will be given to limiting all in-stream activities to the summer months to reduce potential erosion. 0 I I I • I • I • • • I I I / 14 1t rass Stu( its ret t?( A E C Lan nt rui $ ptr Scot Warren 'r tf s snland, 5 ? It, 6 Ch " t I Creston SmetliDOrt r ,¦ law tA' West lttttrson 221 Sr n .s Ind s tndata ? SaId.nn Sort t t e r ? s lot tAMwd 1 • 1 L a aama -11 ' 1351 • 1502 I 1504 ' ,2 1503 ?a ?a 1502 194 , A a2 1674 150J l FAS .10 88 •? ?S` • \ • 1507 ,80 C/e\ ) tJp 1507 \010 /I /I \6 1672 F North Carolina Department Of Transportation Planning & Environmental Branch ASBE COUNTY REPLACE BRIDGE NO. 352 ON SR 1506 OVER BUFFALO CREEK B-3109 0 kilometers 1.6 kilometers 3.2 Figure 1 0 miles 1 miles 2 x. ; 6 ' n STATE of NORTH CAROLINA DEPARTMENT OF TRANSPORTATION u. JAMES B. HUNT JR. P.O. BOX 25201. RALEIGH. N.C. 27611-5201 E. NORRIS TOLSON.. - GOVEILNOR SECRETARY 28 July 1998 MEMORANDUM TO: Wayne Elliot, Unit Head Project Planning Unit FROM: Dale Suiter, Environmental Biologist Environmental Unit e ?(*? SUBJECT: Addendum to the Natural Resources Technical Report for the proposed replacement of Bridge Nc. 352 on SR 1506 over Buffalo Creek, Ashe County. TiP No. B-3109; State Project No. 8.2710701; Federal Aid No. BRZ-1506(1). ATTENTION: John Williams, P.E., Project Manager Project Planning Unit REFERENCE: 1.) Natural Resources Technical Report for the subject project by Michael Baranski, September 15, 1995. Since the original referenced Natural Resources Technical Report (NRTR) for the subject project was completed, an on-site detour has been added to the project limits. This addendum addresses the natural resources that will be impacted by this detour which involves routing traffic along an abandoned railroad bed south of bridge number 352. This area was visited by NCDOT biologists Dale W. Suiter and Jim Hauser on 24 June 1998. A description of this portion of the project study area follows. The abandoned railroad corridor proposed for use as an on-site detour lies parallel to Buffalo Creek (DWQ Index No. 10-2-20), the same stream that the subject bridge crosses. This stream has a Best Usage Classification of C Tr. ' Class C refers to waters suitable for aquatic life propagation and survival, fishing, wildlife, secondary recreation and agriculture. Tr (Trout water) is a supplemental water classification assigned to waters suitable for natural trout propagation and the maintenance of stocked trout. The abandoned railroad corridor also crosses a tributary to Buffalo Creek near the southern end of the detour. Since this stream does not have a Best Usage Classification, it receives the same classification as the stream it flows into, C Tr. According to current design plans, the use of this detour will not impact Buffalo Creek or the slopes above it, however it may be necessary to extend the culvert at the tributary to Buffalo Creek. The recommendations set forth in "Guidelines for Construction of Highway Improvements Adjacent to or Crossing Trout Waters in North Carolina" (Joint Agency Committee 1997) should be strictly adhered to during the construction of this project to minimize impacts to these two streams. No jurisdictional wetlands will be impacted by this detour. Vegetation along the old railroad bed includes a variety of species common to the adjacent forests as well as nonnative weedy species, a result of areas opened to sunlight. Widening the existing railroad bed will likely impact woody species such as buckeye (Aesculus octandra), black locust (Robinia pseudo-acacia), black oak (Quen:us nigra), .witch hazel (Hamamelis virginiana), tulip poplar (Liriodendron tulipifera), black cherry (Prunus serotina), ninebark (Physiocarpus opulifolius), elderberry (Sambucus canadensis), wild hydrangea (Hydrangea arborescens) and multiflora rose (Rosa multiflora). Herbaceous species within this part of the project limits include: thimbleweed (Anemone virginiana), red clover (Trifolium pratense), violets (Viola spp.), wingstem (Verbesina altemifolia), Venus looking-glass (Triodanus perfoliata), ctearweed (Pilea pumila), poison ivy (Toxicodendron radicans), touch me not (Impatiens sp.), golden ragwort (Senecio aureus), bouncing bet (Saponaria offrcinalis) and Solomon's seal (Polygonum biflorum), ox-eye daisy (Chrysanthemum leucanthemum) and yarrow (Achillea millefolium). Five federally protected species are listed for Ashe County by the USFWS: spreading avens (Geum radiatum), Roan Mountain bluet (Houstonia montana), Heller's blazing star (Liatris hellen), Virginia spiraea (Spiraea virginiana) and rock gnome lichen (Gymnodenma lineare). These species were described in the referenced NRTR. The abandoned railroad corridor area was surveyed for these species and none were located. The NC NHP database of rare species and unique communities does not indicate any populations of those species within the project study area. The original biological conclusions of No Effect remain valid. Please contact me at (919) 733-7844 ext. 303 if you have any questions regarding this alternative. cc: V. Charles Bruton, Ph.D., Unit Head, Environmental Unit Hal Bain, Environmental Supervisor vf ile: B-3109 n M'ST?Aif'o, 3 ?,C STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION JAMES B. HUNT JR. P.O. BOX 25201, RALEIGH. N.C. 27611-5201 GOVERNOR March 19, 1999 U.S. Army Corps of Engineers Raleigh Regulatory Field Office 6508 Falls of the Neuse Road, Suite 120 Raleigh. NC 27615 ATTN: Ms. Jean Manuele Regulatory Project Manager Dear Ms. Manuele: E. NORRIS TOLSON SECRETARY SUBJECT: Replacement of Bridge No. 111, On SR 1107. Over New Hope Creek, Durham County, TIP No. B-2963; USACE ID No. 199708086. The construction of this project was authorized under Nationwide Permit No. 23 (NWP 23), Action ID. 199708086, by letter dated 21 August 1997. The Nationwide authorization for this project will expire on'21 August 1999. This project is scheduled to be let in December 1999. Enclosed you will find a copy of the NW 23 dated 21 August 1997. Since the submission ,of the original permit application, project design has been modified. Project design now consists of elevating the existing road bed to reduce flooding of the roadway. Under current design, potential wetland impacts will affect three wetland areas for a total fill in wetlands of 0.67 acres. The previous design called for 0.27 acres of wetland impacts. Plans for the current design are attached. Attached are conditions from the NC Wildlife Resources Commission (WRC) to mitigate for impacts on WRC Gamelands. The March 1997 letter addresses impacts associated with the original design and the March 1998 letter addresses impacts associated with the modified design. Please attach these letters as conditions to the NWP 23. As of 15 January 1999, the US Fish and Wildlife Service FWS) lists three federally protected species for Durham County: bald eagle (Haliaeetus leucocephalus), smooth coneflower (Echinacea laevigata), and Michaux's sumac (Rhus michauxii). The FWS has not listed any additional species for Durham County since submission of the Natural Resources Technical Report (NCDOT, 23 September 1996) for the project. All three federally protected species received biological conclusions of No Effect in the Natural Resources Technical Report. These biological conclusions remain valid. The NCDOT requests the renewal of this permit in accordance with the issued NWP 23. A copy of this letter is being provided to the NCDWQ for their review. If you have any questions, please contact Mr. Bruce Ellis at (919) 733-1203. Sincerely, v'=AI,-ZL I-0, William D. Gilmore, PE, Branch Manager Planning Development and Environmental Analysis Branch cc: w/ attachment Mr. David Franklin, COE Mr. John Dorney, DWQ Mr. David Cox, NCWRC Mr. Tom Shearin, P.E., Roadway Design Mr. Whit Webb, P.E., Program Development Mr. R. L. Hill, P.E., Design Services Mr. A. L. Hankins, P.E., Hydraulics Mr. William J. Rogers, P.E., Structure Design Mr. W. S. Varnedoe, P.E., Division 5 Engineer VICINITY MAP na?? itneY 'ia?r?o??? Unrrercil . _ Luke Scale of Miles 0 S 10 20 30 0 10 20 30 40 48 Scale of Kilometers N N. C. DEPT. OF TRANSPORTATION DIVISION OF HIGHW.?YS DURHAM COUNTY PROJECT: 8.2352201 (B-2965) BRIDGE \ 0. 11'1 OVER NEW HOPE CREEK I SHEET _ 1 OF S >? - `, W 2 Nv"? F LL I '7 y ^ = o? 1 1 I G~• v ? ^_ V I 6.'?k'4 -? it .tyr ` I z e?i 1 d ?, ? ? • ' ? ? I Z Nre W .,, ' e 1 • WN rl-r??l??; k Ir o. ??L I f_- - - I? 6r o^? / ? (3. ?? I ' i I a I?? ?;i W NQ m- li ,j-- W N?yrv 1 N ? ? no I 3c p - I C m NNN I C PH III F W m L•' . ? C ?N- I N CL 0 I ?N I O I ?r Uq i _ 1 IQ Q 7 ? ( ? I I I I ``'? ?I `O ? T 11 I 1 ?? ?{ ? •4 I ? 1 I i l1 ? N N N a m Cp `O I I I"' am 9 Z ?? "'? ? I I N 2 O F ? v ? 1-p A I ? ? = rJ C7 WI I ~ r ? ?? pq I m I I M? L a N z MI Id ya I Imo, ? ? ? ? ?, f? dll I I N?-so ? r?? dd I z I? I I ? ?I Ig 14 I ? ? o I I c• as u`? I i m V R N_ \ _ Q i 00 ? L ZO I k ?? O 3 M W J p v I? J ? ? ? Nn NQ T? N f LQ ?4 N7. c _ 1I. N I 2 I ? \? I i i ? I I QZ 07 ?? I ? N N mNN< N O N O Cj ?3 Q ?I i t Q ? L W . 4 N O ''1 N a I I V ° ® ? .I I I I ? ma ? o ? ? ? M J LL ? I yl I I I N ? C] <a °{ Q < 7 N v u¢ 7 T 0 J - h I I I I ' N I? o I W N O N 0 ' ?\ I I I I ? ? ? Imo" .? 0 m ? a Y { I I? . N = 00 4} ? ? yl I I ?= \ IW ?? 7 9Z N 0 I' I I _ I I m ?` m= s= I I ? I I I 0o 00 I I al ?? ? I N u a m I ?I - 1 c_ ` W ? ow 00 U??3 OZ WO o ,J?`'? J r. I =J 35'26'1 10 ; I ? I i - iP I ' I I ? i T z Li. W F O z 0 I I i O 1-6 I T /i o ?. o} W (? / v OO LUD 3y ? p ? O i ? I 0 ? o ,j I O i\ O i° \ N o= o I ? I O ?O 00 L M N N N N N Z O U Q W Q x 9 a! `? P7 q3 ? E- z ? w a c- I > ?^ ?r z z I ; I: s N L Z - I W 3 ' Z J J ' lL I U) U L W U v v om v r ? U C d C LL w U Q a LL N w co E c m ? Q E F- W y N LL co C O U y ? C O - ? U Z M LL . r a - CD - N W N O O C 'C y O O O c O c O ? ? t U m a"iUg O) °? o aNi U y U 2r U c N ? a a c m v v (n 0 5 N U z W c g W LL m N c a w U N ? C rn v N m ? O C C N O C 7 CO A W O 0 0 O = 11 j N > m 3 U .? O ? m J ? J J C 00 M 6 1 8 C O O N + + M O M O 11 S O) CN N F- U) I- N J N N O J i!) Z O ® North Carolina Wildlife Resources Commission 512 N. Salisbury Street, Raleigh, North Carolina 27604-1188, 919-733-3391 Charles R. Fullwood, Executive Director MEMORANDUM TO: Jeff Ingham Project Planning Engineer, NCDOT FROM: David Cox, Highway Project Coo ' for Habitat Conservation Program DATE: March 9, 1998 SUBJECT: Bridge No. 111 replacement in Durham County, North Carolina. TIP No. B-2986.` We have reviewed the additional information provided by NCDOT and feel that the additional area required for the bridge replacement will not adversely impact the Gamelands provided the measures outlined in our letter of 21 March 1997 are followed. Our only additional request would be that NCDOT maintain the- connection to our gated access road to the east of the existing bridge. If the gate is to be moved NCDOT should contact NCWRC to coordinate the relocation. If the grade of SR 1107 is raised at the entrances of our access roads, the slopes on our access roads must be reworked to allow for vehicular access. The entrances to both access roads should be regraveled following construction. NCDOT should use Best Management Practices to control sediment at this site. Again, we wish to attend the preconstruction meeting for this project to discuss our concerns with NCDOT construction personnel and the contractor. If you have any further questions please call me at (919) 528-9886. North Carolina Wildlife Resources Commission 512 N. Salisbury Street, Raleigh, North Carolina 27604-1188, 919-733-3391 Charles R. Fullwood, Executive Director MEMORANDUM TO: Jeff Ingham Project Planning Engineer, NCDOT FROM: David Cox, Highway Project Coo for _ Habitat Conservation Program DATE: March 9, 1998 SUBJECT: Bridge No. 111 replacement in Durham County, North Carolina. TIP No. B-2986. We have reviewed the additional information provided by NCDOT and feel that the additional area required for the bridge replacement will not adversely impact the Gamelands provided the measures outlined in our letter of 21 March 1997 are followed. Our only additional request would be that NCDOT maintain the connection to our gated access road to the east of the existing bridge. If the gate is to be moved NCDOT should contact NCWRC to coordinate the relocation. If the grade of SR 1107 is raised at the entrances of our access roads, the slopes on our access rcads must be reworked to allow ;r vehicular access. The entrances to both access roads should be regraveled following construction. NCDOT should use Best Management Practices to control sediment at this site. Again, we wish to attend the preconstruction meeting for this project to discuss our concerns with NCDOT construction personnel and the contractor. If you have any further questions please call me at (919) 528-9886. y I-561TEo ` 1y X01 ISSUED STATE OF NORTH CAROLINA DEPARTMENT OF TMNSPORTATION JAMES B. HUNT JR. GOVERNOR DIVISION OF HIGHWAYS P.O. BOX 25201, RALEIGH, N.C. 27611-5201 July 2, 1996 GARLAND B. GARRETT JR. SECRETARY RECEIVED 9 6 06 411 U. S. Army Corps of Engineers Regulatory Field Office 6512 Falls of the Neuse Road, Suite 105 Raleigh, North Carolina 27609 JUL 0 3 1996 ENVIRONMENTAL SCIENCES ATTENTION: Mr. Michael Smith .? Chief, Northern Section Dear Sir: Subject: Ashe County - Replacement of Bridge No. 352 on SR 1506 over Buffalo Creek; T.I.P. No. B-3109; State Project No. 8.2710701 The North Carolina Department of Transportation proposes to replace the existing structure with a new br' approximately the same alignment, along with associated approach impr jissNovember will be maintained on a temporary bridge along the southern sid oge throughout construction. This project is being processed s a, sion in accordance with 23 CFR 771.115(b). We expect to proceed 'th r a Nationwide Permit in accordance with 33 CFR 330 Appendix A 22, 1991, by the U.S. Army Corps of Engineers. The provisions of Section 330.4 and Appendix A (C) of these regulations will be followed in the construction of this project. Fill in jurisdictional wetlands will not exceed 0.1 hectare (0.33 acre). Buffalo Creek does not support trout, and is not designated as a Wild Public Mountain Trout Water by the N.C. Wildlife Resources Commission. Construction shall be accomplished so that wet concrete does not contact stream water. 1n accordance with current procedures for projects located in the designated trout counties, the concurrence of WRC must be obtained prior to construction. By copy of this letter, we hereby request that WRC review the proposed project and provide any comments they find necessary. A copy of the CE document is included for the WRC review. Please note the special construction conditions included in the Summary of Environmental Commitments. Ant Z Thank you for your assistance. If you have any questions, please call Cyndi Bell at (919) 733-7844, Ext. 306. Sincerely, H. Franklin Vick, P.E., Manager Planning and Environmental Branch HFV/mlt Attachment cc: Mr. Eric Alsmeyer, COE, NCDOT Coordinator Ms. Stephanie Goudreau, WRC, Marion Mr. John Dorney, DEM, Water Quality Section Mr. Kelly Barger, P. E., Program Development Mr. Don Morton, P. E., Highway Design Mr. A. L. Hankins, P. E., Hydraulics Mr. John L. Smith, Jr., P. E., Structure Design Mr. Tom Shearin, P. E., Roadway Design Mr. W. E. Hoke, P. E., Division 11 Engineer Mr. John Williams, Planning & Environmental Ashe County Bridge No. 352 on SR 1506 Over Buffalo Creek Federal Project BRZ-1506(1) State Project 8.2710701 TIP # B-3109 CATEGORICAL EXCLUSION U. S. DEPARTMENT OF TRANSPORTATION FEDERAL HIGHWAY ADMINISTRATION AND N. C. DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS APPROVED: 3-19--?,l, ?..: V. Date rH. Franklin Vick, P. E., Manager Planning and Environmental Branch 3-jq.-`C- Date cholas Graf, P. E. Division Administrator, FHWA Ashe County Bridge No. 352 on SR 1506 Over Buffalo Creek Federal Project BRZ-1506(1) State Project 8.2710701 TIP # B-3109 CATEGORICAL EXCLUSION March, 1996 Documentation Prepared in Planning and Environmental Branch By: -5-1A w"iWa. Date John [L. Williams Project Planning Engineer way h ?771:0 C A Date Wayne lliott •......, ??,'', Bridge Project Planning Engineer, Unit Head z?•`?O??.Qr0EE5S/pHqi. ,.?y •,?? Q i SEAL - 6916 ' V. 1% Date Lubin V. Prevatt, P. E., Assistant Manager ,--&'6%461N ?R?-????•`` V, P ?. Planning and Environmental Branch "4488811 Ashe County Bridge No. 352 on SR 1506 Over Buffalo Creek Federal Project BRZ-1506(1) State Project 8.2710701 TIP # B-3109 Bridge No. 352 ( a pony truss bridge not eligible for the National Register of Historic Places) is located in the community of Warrensville in Ashe County on SR 1506 crossing over Buffalo Creek. It is programmed in the 1996-2002 Transportation Improvement Program (TIP) as a bridge replacement project. This project is part of the Federal Aid Bridge Replacement Program and has been classified as a "Categorical Exclusion". No substantial environmental impacts are expected. 1. SUMMARY OF RECOMMENDATIONS Bridge No. 352 will be replaced on approximately the same alignment with a new bridge. Traffic will be maintained on a temporary alignment with a temporary bridge along the southern side of the existing bridge during construction. The temporary bridge will be a one lane structure 4.8 meters (16 feet) wide including one 3.6-meter (12-foot) lane and 0.6-meter (2-foot) offsets. The approaches will include a 3.6-meter (12-foot) lane and 1.2-meter (4-foot) shoulders. The new bridge will be 60 meters (200 feet) long and 7.2 meters (24 feet) wide. It will include two 3.0=meter (10-foot) lanes and 0.6-meter (2-foot) offsets. In addition, the bridge will include a 1.5- meter (5-foot) wide sidewalk with a 1.1-meter (3.5-foot) handrail on the north side of the bridge. The approaches will include two 3.0-meter (10- foot) lanes and 2.2-meter (7-foot) grassed shoulders to accommodate guardrail. The grassed shoulder will taper down to 1.8 meters (6 feet) where guardrail is not required. Upon completion of the approach work, a footpath like the one currently in use will be restored along the north side of the road. The elevation of the new bridge and approaches will be approximately the same as the current alignment. Approach work will extend approximately 30 meters (100 feet) from either end of the new bridge. Based on preliminary design work, the design speed is expected to be approximately 50 km/h (30 mph). The estimated cost of the project is $ 785,000 including $ 728,000 in construction costs and $ 57,000 in right of way costs. The estimated cost shown in the 1996-2002 TIP is $ 600,000. H. SUMMARY OF ENVIRONMENTAL COMMITMENTS All standard procedures and measures will be implemented to avoid or minimize environmental impacts. All practical Best Management Practices (BMP's) will be included and properly maintained during project construction. In accordance with the provisions of Section 404 of the Clean Water Act (33 U.S.C. 1344), a permit will be required from the Corps of Engineers for the discharge of dredged or fill material into "Waters of the United States." An Army Corps of Engineers Nationwide Permit 9 23 will likely be applicable to this project. Prior to issue of the Army Corps of Engineers Nationwide Permit # 23 a North Carolina Division of Environmental Management (DEM) Section 401 Water Quality General Certification must be obtained. While Ashe County is designated as a "trout county," Buffalo Creek does not support trout. Therefore no specific measures to protect trout will be required. Foundation investigations will be required on this project. The investigation will include test borings in soil and/or rock for in-site testing as well as obtaining samples for laboratory testing. This may require test borings in streams and/or wetlands. The temporary bridge and alignment will be removed and restored to the original contours. Disturbance to riparian vegetation should be kept to a minimum during bridge replacement. Native trees, shrubs, and grasses will be planted in disturbed areas to replace those removed by construction. Construction must be accomplished so that wet concrete does not contact stream water. This will lessen the chance of altering the stream's water chemistry. Consideration will be given to limiting all instream activities to the summer months to reduce potential erosion. III. ANTICIPATED DESIGN EXCEPTIONS NCDOT anticipates that a design exception will be required due to design speed. IV. EXISTING CONDITIONS SR 1506 is classified as a Rural Local Route in the Statewide Functional Classification System. It carries 175 vehicles per day (vpd) and is projected at 225 vpd for the year 2020. There is no posted speed limit.. The road serves a small community accessible only by this bridge or one other private bridge (See Figure 2). The community is composed of mostly residences with a few small businesses. Presently there is an effort on the part of the county to set up a small health clinic in one of the houses. The existing pony truss bridge was probably completed in the 1920's. The structure has been rehabilitated as recently as 1955. It is 56.4 meters (185 feet) long. There are approximately 5.1 meters (17 feet) of vertical clearance between the bridge deck and streambed. The bridge has 3.3 meters (10.9 feet) of roadway width. There is one lane of traffic on the bridge. According to Bridge Maintenance Unit records, the sufficiency rating of the bridge is 4 out of a possible 100. Presently the bridge is posted 8 tons for single vehicles and posted 11 tons for truck-tractor semi-trailers. The structure has less than 5 years of estimated remaining life. The horizontal and vertical alignment are both fair relative to other alignments in the area. The pavement width on the approaches to the bridge is 3.0 meters (10 feet). Shoulders on both approaches to the bridge are approximately 1.0 meters (3 feet) wide. 2 Consultation with the Traffic Engineering Branch indicates that no accidents have been reported within the last three years in the vicinity of the project. There are no school bus crossings over the studied bridge. There are aerial telephone and electrical services along SR 1502 that will likely be impacted by this project. There are no other known utilites near the project. V. PROPOSED ALTERNATIVES There is one "build" option considered in this document as follows. Bridge No. 352 will be replaced on approximately the same alignment with a new bridge. Traffic will be maintained on a temporary alignment with a temporary bridge along the southern side of the existing bridge during construction. "Do-nothing" is not practical, requiring the eventual closing of the road as the existing bridge continues to deteriorate. Rehabilitation of the existing deteriorating bridge is neither practical nor economical. VI. ESTIMATED COST (Table 1) COMPONENT COST New Bridge Structure Bridge Removal Roadway & Approaches Temporary Detour Engineering & Contingencies $ 321,000 $ 23,000 $ 131,000 $ 150,000 $ 103,000 Total Construction $ 728,000 Right of Way $ 57,000 Total Cost $ 785,000 VII. RECOMMENDED IMPROVEMENTS Bridge No. 352 will be replaced on approximately the same alignment with a new bridge. Traffic will be maintained on a temporary alignment with a temporary bridge along the southern side of the existing bridge during construction. The temporary bridge will be a one lane structure 4.8 meters (16 feet) wide including one 3.6-meter (12-foot) lane and 0.6-meter (2-foot) offsets. The approaches will include a 3.6-meter (12-foot) lane and 1.2-meter (4-foot) shoulders. The new bridge will be 60 meters (200 feet) long and 7.2 meters (24 feet) wide. It will include two 3.0-meter (10-foot) lanes and 0.6-meter (2-foot) offsets. In addition, the bridge will include a 1.5- meter (5-foot) wide sidewalk with a 1.1-meter (3.5-foot) handrail on the north side of the bridge. The approaches will include two 3.0-meter (10- foot) lanes and 2.2-meter (7-foot) grassed shoulders to accommodate guardrail. The grassed shoulder will taper down to 1.8 meters (6 feet) where guardrail is not required. Upon completion of the approach work, a footpath like the one currently in use will be restored along the north side of the road. The elevation of the new bridge and approaches will be approximately the same as the current alignment. Approach work will extend approximately 30 meters (100 feet) from either end of the new bridge. Based on preliminary design work, the design speed is expected to be approximately 50 km/h (30 mph). The bridge to the southwest of Bridge 352 (see Figure 2) is a private bridge and therefore not available as a detour for traffic. A temporary bridge to the north of the bridge would require taking the house on the northwest corner of the bridge. Therefore, traffic will maintained on a temporary one lane bridge to the south of the existing bridge during construction in order to avoid taking any homes or businesses. Based on preliminary designs, the project as proposed will have only minor proximity damages associated with right-of-way. No relocatees are anticipated. VIII. ENVIRONMENTAL EFFECTS A. GENERAL This project is expected to have an overall positive impact. Replacement of an inadequate bridge will result in safer traffic operations. This project is considered to be a "Categorical Exclusion" due to its limited scope and insignificant environmental consequences. By implementing the environmental commitments listed in Section H of this document, in addition to use of current NCDOT standards and specifications, this bridge replacement should not have a substantial adverse effect on the quality of the human or natural environment. The project is not in conflict with any plan, existing land use, or zoning regulation. No change in land use is expected to result from construction of this project. There are no hazardous waste impacts. No adverse effect on families or communities is anticipated. Right-of-way acquisition will be limited. 4 No adverse effect on families or communities is anticipated. Right-of-way acquisition will be limited. No adverse effect on public facilities or services is expected. The project is not expected to adversely affect social, economic, or religious opportunities in the area. There are no publicly owned parks, recreational facilities, or wildlife and waterfowl refuges of national, state, or local significance in the vicinity of the project. The proposed bridge replacement project will not raise the existing flood levels or have any significant adverse effect on the existing floodplain. Utility impacts are anticipated to be low to moderate. B. AIR AND NOISE The project is within the Eastern Mountain Air Quality Control Region. The ambient air quality for Ashe County has been determined to be in compliance with the National Ambient Air Quality Standards. This project is in an area where the State Implementation Plan (SIP) does not contain any transportation control measures. NCDOT and the FHWA do not anticipate that it will create any adverse effect on the air quality of this attainment area. The impact on air quality will be insignificant. If the project disposes of vegetation by burning, all burning shall be done in accordance with applicable local laws and regulations of the North Carolina SIP for air quality in compliance with 15 NCAC 2D.0520. This evaluation completes the assessment requirements of the 1990 Clean Air Act amendments and the National Environmental Policy Act. The project requires no additional reports. The project will not significantly increase traffic volumes. Therefore, it will not have significant impact on noise levels. Temporary noise increases may occur during construction. C. LAND USE & FARMLAND EFFECTS In compliance with the Farmland Protection Policy Act (FPPA) of 1981, the U: S. Soil Conservation Service (SCS) was asked to determine whether the project being considered will impact prime or important farmland soils. The SCS responded that the project will not impact prime or important farmland soils. D. HISTORICAL EFFECTS & ARCHAEOLOGICAL EFFECTS NCDOT has evaluated Bridge No. 352 (a pony truss bridge) and determined that it is not eligible for the National Register of Historic Places. There are many houses in the area over 50 years of age. However, all have been significantly altered over time and do not retain the historical qualities required to be considered eligible for the National Register of Historic Places. Within the project area of potential effect there are no archaeological properties listed on or eligible for the National Register of Historic Places. The State Historic Preservation Office has reviewed the project and concurs with these evaluations (see attachment).. E. NATURAL RESOURCES PHYSICAL RESOURCES Geology The project area lies within the Blue Ridge Belt of sedimentary and metamorphic rocks. The project site is in a zone of amphibolite, a mafic rock type, but it is in close contact with a small area of meta-ultramafic rock. Physiography and Soils The project region in Ashe County is located in the Mountain physiographic region in northwestern North Carolina. The landscape is hilly to mountainous. The highest elevation in the project vicinity is about 1374 meters (4508 feet). The elevation at the level of Buffalo Creek is about 817 meters (2680 feet). Drainage patterns are dendritic in the project region. Floodplains are narrow and not well-developed. Small floodplains are infrequent along the major streams. The soils of the project vicinity are in the Evard-Ashe association. These are well-drained and somewhat excessively well-drained soils of moderately steep to very steep slopes at intermediate elevations. Subsoils are loamy. The soils of the project area are all Toxoway loam. This is a nearly level, poorly to very poorly drained soil along major streams. The seasonal high water table is at or near the surface for a significant period during the growing season. The high water table is from November-April, and the soil is subject to frequent flooding for brief periods during November-March. The well drained Tusquitee loam forms on colluvium and occurs in drainageways and coves and on foot slopes. The slope is 8-15%. Such soils are just outside the project area on the west side. The Toxaway series is listed as a hydric soil or with hydric soils as major components. The Tusquitee loam may have hydric soil or wet spot inclusions in seeps. Waters Resources All of Ashe County is drained by the New River and its tributaries. The project area is on Buffalo Creek, a tributary of North Fork New River. The North Fork joins the South Fork to form the New River approximately 33 kilometers (21 miles) downstream of the project area. Buffalo Creek is a large tributary stream entering the North Fork about 1.0 kilometer (0.6 miles) north of the project area. There is one small unnamed tributary of Buffalo Creek within the project area. Buffalo Creek meanders through the community 6 of Warrensville. The stream parallels NC 194/88 for a considerable distance before it turns sharply north in Warrensville toward the North Fork. Stream Characteristics Buffalo Creek is a typical mid-elevation moderate-size mountain stream. The stream channel varies from 6.1-9.1 meters (20-30 feet) in width in the project area. The banks are 0.9-1.2 meters (3-4 feet) in height in most places, but there is a sand and cobble beach on the south side of the bridge. The stream almost completely fills the channel. Water depth is less than 0.3 meters (I foot) in most places, but some deep holes are present around the bridge. Bedrock is the primary substrate beneath the bridge, but boulder, cobble, gravel, and silt substrates are mostly present elsewhere. Silt and blue-green algae scums cover most of the rock. Some natural debris is present in the stream, and the stream has a clean appearance overall with only minor amounts of trash. The banks are mostly open, but there are a few well-developed thickets in places. Some riffles are present about 37 meters (120 feet) to the east. Flow was relatively slow except for the riffle areas and shallows; and water was clear at the time of the site visit. Sand piles deposited by overwash currents occur in places on top of the banks. It appears that sand is routinely dug and removed from the area by local residents. Fish (1968) classifies Buffalo Creek in his "brook trout" ecological category. In Fish's classification, such a stream is characterized as follows: 2.4-6.1 meters (8-20 feet) in width, shallow with many pools, clear water, sand to boulder bottoms, minimum flows of 3-10 cubic feet per second, 70 degree summer temperatures. These are high elevation streams, often with barriers to fish migrations, and the characteristic fish are brook trout and dace. Further, Fish describes the 12.9 kilometers (8 miles) section of Buffalo Creek from mouth to origin as having an average width of 7.6 meters (25 feet). Fish classifies a 51 kilometer (32 mile) section of the North Fork New River from the confluence with the South Fork to the confluence with Three Top Creek in his "smallmouth" category. These waters are generally the stream reaches immediately below trout waters. The smallmouth bass fishing is reported as excellent. The small perennial stream that enters Buffalo Creek from the west side in the project area is about 1.2 meters (4 feet) in width and 5-15 centimeters (2-6 inches) in depth. The substrate is silty and very soft. Rubbish and trash are abundant, the stream receiving these inputs as it flows through the community from the west. Any impacts to this stream would likely be only at the mouth. Best Usage Classification Buffalo Creek is classified as "C Tr +" from its source to the North Fork New River (NCDEHNR 1993). Its tributaries receive the same classification. Class "C" streams are "freshwaters protected for secondary recreation, fishing, aquatic life including propagation and survival, and wildlife" (NCDEHNR 1994). This is the lowest freshwater classification; all freshwaters receive this classification at a minimum. Trout waters ("Tr") are "freshwaters protected for natural trout propagation and survival of stocked trout". The "+" symbol in the classification "identifies waters that are subject to a special management strategy specified in 15A NCAC 213.0216, the Outstanding Resource Waters (ORW) rule, in order to protect downstream waters designated as ORW." The North Fork New River, from Three Top Creek to the New River, is designated a "C +" stream. With the exception of Little Buffalo Creek (tributary of Buffalo Creek) and Hoskins Fork, 1993 studies have suggested that much of the North Fork sub-basin could qualify for High Quality Water (HQW) designation (NCDEHNR 1994). Water Quality Extensive sampling at 70 sites in the period 1983-1993 (many sampled more than once) consistently indicate clearly high water quality throughout the New River Basin. In 1993, 66% of sampled sites received "Excellent" bioclassifications (NCDEHNR 1994). This is due to the low level of industrial development and sparse population. Fish tissue data for a variety of contaminants are all below EPA and FDA limits (NCDEHNR 1994). Water quality is better in Ashe County than in the Watauga County portion of the drainage. There are few unique chemical characteristics of the waters of the New River Basin, but the waters do have slightly higher total nitrogen concentration and higher maximum pH values than other mountain streams (NCDEHNR 1988). There are chemical and/or biological classifications [from stations for chemical and physical (AMS or ambient monitoring system) and/or benthic macroinvertebrate (BMAN) samplings] available for several stations in or near the project vicinity (NCDEHNR 1994). The bioclassification for two sites above and below the West Jefferson Waste Water Treatment Plant (WWTP) on Little Buffalo Creek (off SR 1153) and the upper tributary of Little Buffalo Creek (above WWTP) have been "Poor" since 1985, due to the WWTP, urban runoff, and broken sewer mains (NCDEHNR 1994). Little Buffalo Creek enters Buffalo Creek about 3.0 kilometers (1.9 miles) above the project area. A site on Buffalo Creek at NC 194/88, below the confluence with Little Buffalo Creek, was rated "Excellent" in 1993, but "Fair" in 1985 due to a high Biotic Index Value (the impact was noted in comparison to an upstream site which was "Good"). "Little Buffalo Creek appears to have recovered sufficiently by the confluence of Buffalo Creek that it does not degrade Buffalo Creek" (NCDEHNR 1994). The nearest sampling site downstream on the North Fork (SR 1644) was "Good" in 1989, and "Excellent" in 1990 and 1993. All but one other site sampled in the North Fork sub-basin in 1993 were rated "Excellent"; one tributary was rated "Good" (NCDEHNR 1994). The excellent ratings are attributed in part to lower flows in 1993 compared to previous sampling periods; impacts from nonpoint sources would be reduced under lower runoff conditions. There are only five dischargers in the New River Basin with a permitted flow equal to or greater than 0.5-million gallons per day and only 30 known permitted dischargers 8 altogether. The only discharger in the North Fork sub-basin permitted at this level is Sprague Electric at 0.8 million gallons per day, discharging into the North Fork just north of the project area. There have been water quality problems at both the Jefferson (South Fork sub-basin) and West Jefferson (North Fork sub-basin) WWTPs, particularly before facility upgrades in 1987. The West Jefferson WWTP currently monitors effluent toxicity as a permit requirement, and the instream waste concentration is 44.92% (NCDEHNR 1994). There were no support ratings in recently completed assessment of the New River Basin (NCDEHNR 1994). The previous rating for the North Fork sampling site nearest the project area was "S" (Supporting its Designating Uses) (NCDEHNR 1992). Buffalo Creek and Little Buffalo Creek were sampled in 1985 to determine if the trout classification was being attained. The trout designation was retained because it was felt that the poor water quality in Little Buffalo Creek was not irreversible (NCDEHNR 1994). Anticipated Water Resource Impacts Water quality data indicate that streams in the project vicinity that could be impacted by the project are presently in good to excellent condition, and apparently supporting their designated uses. The designated uses are in the lowest freshwater classification, with the exception that special trout waters are also present. Construction impacts could degrade these waters, with sediment loads and other pollutants affecting water quality from a biological and chemical standpoint. Because of the generally acute sensitivity of aquatic organisms to discharges and inputs deriving from construction, appropriate measures must be taken to avoid spillage and control runoff. These measures must include an erosion and sediment control plan, provisions for waste materials and storage, storm water management measures, and appropriate road maintenance measures. Best Management Practices must be employed consistently. Table 2 summarizes potential surface water resource impacts. There is one stream crossing, the major crossing of Buffalo Creek. The mouth of a very small perennial stream may receive some minor impact. Significant pollution discharges are possible with construction of any culverts and the bridge that will cross Buffalo Creek. There will be some unavoidable impacts to small areas of jurisdictional wetlands in the project area. Though much of the project area lies in a floodplain, most sites do not meet the definition of jurisdictional waters (wetlands). There could be potential indirect impacts to downstream off-site wetlands. Construction of this project should not modify the flow of any stream. Buffalo Creek can be crossed effectively with an appropriately designed and placed bridge, but 9 careful design will be necessary to minimize stream relocation and prevent discharges into the stream. Flow within the creek should not be permanently modified because of, or as a result of, construction. Bridge supports from high ground on the banks must be carefully constructed and protected to prevent erosion and pollution runoff. Consideration will be given to limiting all instream activities to the summer months to reduce potential erosion. There will be some minor unavoidable negative impacts on the vegetative cover that protects streams. Increased light levels, higher stream temperatures, and changes in species composition will modify affected stream reaches. The project will not affect any HQW (High Quality Waters), WS-I (water supplies in natural watersheds), or WS-H (water supplies in predominantly undeveloped watersheds). The project does not lie within 1.6 kilometers (1.0 miles) of such resources. Table 2 Water resources potential impacts and encroachments. Large stream crossing Buffalo Creek (1) 0.03 hectares (0.07 acre) Streamside wetlands < 0.1 hectares (<O.1 acre) BIOTIC RESOURCES The biota and natural and secondary communities of the project area are typical of the Appalachian Ecoregion. No unusual or especially significant elements were located during the field investigation, as noted below. Plant Communities and Land Types Community descriptions are based on observations derived from the general vegetation in and near the project R/W. The predominant natural vegetation of the project area would likely be classified as Montane Alluvial Forest (Schafale and Weakley 1990). Some remnants of mesic forest communities exist in the project area, but not in the R/W. Tree species listed below are mostly remnants of the natural community types. For purposes of discussion and quantification, seven communities and land types are recognized in the R/W. These are divided into two groups: Natural Communities and Developed Land Types. These communities and land types are described below, and acreage estimates for each classification are given in Table 3. The larger portions of the land impacted under R/W are Early Successional and Ruderal Community and Built-up Area. 10 Natural Communities Open Creek Bank. Most of the narrow floodplain near the creek is an open herbaceous community. It appears that frequent disturbance keeps these areas in an open condition. Woody plants are scattered infrequently within the herbaceous matrix. There are some slab-like areas of rock, asphalt, and concrete, mostly just outside of the R/W on the east side, and some concrete rubble in a pile. Part of this community outside of the R/W is used as a dump for vegetative debris. There is a narrow rock wall that separates the open creek bank from most of the more lawn-like areas on higher ground on the north side. This community type includes the area under the bridge at the points where the bridge connects to the high ground. Examples of the more common herbaceous taxa are cut-leaf coneflower, sundrops, Joe-pye weed, fescue, and lamb's quarter. A large number of other herbs, mostly weedy species, are present. The more common woody plants scattered within the community are silky dogwood, tag alder, shrubby black willow, and sprouts and seedlings of Balm-of-Gilead. A narrow riparian fringe of mostly herbaceous vegetation is included in this community. This area adjacent to the stream includes more taxa with hydrophytic tendencies. Some of the taxa are found in the soil-filled crevices among the rocks along the stream bank. Examples of species present here include bulrush, flatsedge, and blunt spikerush. Black rock moss and other mosses are present on the rocks. Creek Bank Thicket. Thickets are developed in some areas of the R/W and elsewhere in the project area. Some of the thicket community is under remnants of alluvial and mesic forest. These include scattered individuals of large sycamore and smaller individuals of buckeye, black willow, and sugar maple. Most of this latter type is not found in the R/W. Stream Community. This is all open surface water. There are no vegetated areas in the stream. Developed Land Types Built-up Area. This type includes buildings; lawns, gardens, and landscaped areas associated with structures; and a 91 centimeter (36 inch) diameter breast height sycamore isolated near the existing bridge on the north end. Houses located at the lowest elevations in the project area are raised 0.9-1.2 meters (3-4 feet) above ground level, thus appearing to be occasionally subject to flood waters. Maintained Roadside. Roadside vegetation mostly includes crabgrass, fescue, sow thistle, hawksbeard, and similar weedy species. 11 Terrestrial Fauna The wildlife and other fauna are less easily observed than the flora of an area without special efforts being expended. Evidence of the typical fauna is sought through habitat evaluation, casual sightings, and observation of sounds, tracks, scats, dens, and other indirect evidence. Studies of range distributions are also important in estimating the expected fauna of a given area. The diversity of habitat types in the project area is low. The primary habitat types consist of alluvial floodplain communities (mostly with herbaceous and early successional vegetation) and the stream community. There are no forests included in the project area, lying as it does in the middle of a small village. Human activity is high in the area. The mix of residential and successional landscapes in the area is judged to be generally good for birds. There were no ponds or marshy areas noted in the project vicinity Because of the overall small acreage involved in the project and the limited diversity of habitat types, no attempt is made here to delimit habitat groupings of the terrestrial fauna. Most of the listed species should be expected to be ubiquitous in the project area. Most of the species listed are characteristic of open and intermediate areas, which in the project area are the open creek banks, thickets, and the early successional areas. Those generally ubiquitous amphibians that should be in the project area are American toad, Fowler's toad, upland chorus frog, spring peeper, and two-lined salamander. Seal salamanders and red salamanders may be present at the edges of the stream and in seepages that might exist. Some other species may also be present. Treefrogs are expected. Ambystomid salamanders are not expected because of the absence of suitable breeding pools in the area. Among the reptiles, examples of those occurring here probably include the five-lined skink, eastern box turtle, and rat snake. Typical reptiles expected in the slightly wooded areas are redbelly snake, ringneck snake, and worm snake. Ribbon snake may occupy some of the damp areas and stream margins in the floodplain. Examples of avifauna noted or expected in the project area include mourning dove, robin, ruby-throated hummingbird, and least flycatcher. Belted kingfisher utilize the stream. House sparrows were noted in the area. Suitable habitat occurs in the project area for mammals such as follows: southeastern shrew, northern short-tailed shrew, and hairy-tailed mole. Gray fox, red fox, raccoon, and spotted skunk probably utilize the area. Several species usually shunning open areas, but which could occur in the intermediate areas, include opossum, eastern chipmunk, golden mouse, and deer mouse. Several kinds of bats, such as little brown myotis, eastern pipistrelle, and red bat might be expected foraging over the streams and residential landscapes. Only a few usually exclusively forest species might be present, 12 including woodrat, southern flying squirrel, red squirrel, and gray squirrel. Muskrat and mink probably utilize the streams in the area. White-tailed deer appear to be absent. Aquatic Life . Fish (1968) indicates that brook trout and dace are the characteristic fish of Buffalo Creek, and he reports the fish catch as follows: 86% trout, 3% sunfish, and 11% other. Though numerous small "minnows" and a couple of larger fish were observed during the study, it was not possible to make identifications. There are 20 native fish and several introduced fish known in the North Carolina portion of the New River Basin, with four endemic to the upper New River and four others native to the state only in the New River Basin (NCDEHNR 1994). Fish that might occur in the smaller streams such as Buffalo Creek would likely be rosyside dace, creek chub, redbreast sunfish, some other sunfishes, mottled sculpin, rainbow trout, and darters. As noted previously, the project area is only 1.0 kilometer (0.6 miles) from the North Fork New River. Gamefish known to occur in the New River include smallmouth bass and rock bass. Fish (1968) reports that there is exceptional smallmouth bass fishing at times. Good turtle habitat is not present, but the snapping turtle is probably present in the area. Northern water snake and queen snake are the most likely water snakes of the area. Small numbers of pouch snails were observed in Buffalo Creek. No evidence of crayfish was noted, though they are almost certainly present. Small numbers of water boatmen were noted. The presence of moderate numbers of water penny beetle larvae, caddis fly larvae, and mayfly larvae indicate the high quality of the stream waters. Terrestrial Systems Projected direct impacts due to project construction are included in Table 3. Calculations are best approximations given the design specifications available and the precision possible in this study. Area measurements were calculated on aerial photographs onto which the prospective R/Ws were drawn. The existing roadway on the bridge was not included in the area measurements. It is noted that there will be no permanent new road or additional bridging in the project area. The detour areas will be restored to their approximate original contours. For most of the communities and land types, there would be only temporary loss of area. The roadside community and parts of the creek bank and successional communities would be completely destroyed during construction, but these or similar communities would eventually be re-established naturally after construction. There are no forest communities that would be impacted. Construction immediately adjacent to the stream system could produce major impact on that community. Following construction, there 13 should be no total reduction of the total natural habitat in the project area. Depending on the actual design of the project, there could be permanent loss of some of the built-up land. The actual impacts to biotic communities may be less than those indicated in Table 3 below if some of the R/W is not utilized in construction. The data in Table 3 suggest only the direct takings of land and community types due to construction. Other, indirect, effects on wildlife population levels and habitat value should not change significantly. Mortality rates for all species due to road kills should not increase because the total amount of roadway will not increase. The riparian zone of Buffalo Creek is probably an important corridor for animal movement. The existing roadway already disrupts natural corridor movement, so replacement of this bridge will not introduce a significantly new factor except during the construction phases of the project. Construction damage can be incurred on land outside the R/W and construction limits. Such damage can include soil compaction and root exposure and injury, placing of fill dirt over tree root systems, spillage of damaging substances, and skinning of trees by machinery. With the exercise of proper care, such damage can be avoided. Table 3 Area estimates of community and land types impacted under R/W in hectares (acres). Open Creek Bank 0.07 (0.17) Creek Bank Thicket 0.02 (0.05) Stream Community 0.03 (0.07) Early Successional and Ruderal 0.09 (0.22) Built-up Area 0.13 (0.33) Maintained Roadside 0.01 (0.03) TOTAL 0.35 (0.87) Fragmentation of habitat is not an issue here because no new location dividing larger tracts is involved. There will be no new impacts on the larger species or on those smaller species that require large tracts of unbroken forested land (such as many neotropical migrant birds). Aquatic Systems Impacts on fishes should be minimal if construction is done carefully to reduce sedimentation and channel alteration and if no barriers to fish movement are introduced. Any culverts that may be installed to channel streams can cause behavioral inhibition of movement for some species. 14 Removal of streamside vegetation will increase stream temperature and irradiance and will cause a reduction of allochthonous food sources. These effects will negatively alter the stream characteristics for some aquatic organisms. Substrate alteration will have negative effects on sessile benthic organisms. Buffalo Creek and possibly the mouth of one small tributary stream will be impacted in these ways. However, streamside vegetation will recover after construction, and there should be no permanent loss of this ecosystem component. Increased sediment and pollution due to construction activity and runoff pollution after construction are widely recognized as factors that can seriously reduce water quality. Aquatic organisms are generally acutely sensitive to these inputs. Utmost care must be taken to reduce the effects of these impacts. SPECIAL TOPICS Jurisdictional Waters of the United States Wetlands and surface waters receive specific protection under Section 404 of the Clean Water Act (33 U.S.C. 1251-1376) and other federal and state statutes and regulations. The U. S. Army Corps of Engineers (COE) has jurisdiction over the discharge of dredged or fill materials into these waters and wetlands. Determination of jurisdictional wetlands were made pursuant to 33 CFR 328.3 (b) based on best judgment of required criteria (Environmental Laboratory 1987). Surface waters of the riverine system in streams are the most important jurisdictional waters present in the project R/W, to which construction will be limited. It is determined that the only jurisdictional wetlands are small areas of riparian fringe wetlands alongside Buffalo Creek which will be crossed with a new bridge by the project. The other alluvial communities associated with Buffalo Creek in the project area do not appear to meet the criteria for jurisdictional wetlands, particularly with regard to the type of vegetation present. There are some small pocket wetlands west of the project area at the intersection of NC 88 and NC 194, on both sides of SR 1505. These areas appear to be developed on Tusquitee soils. The vegetation includes bulrushes, monkeyflower, jewelweed, and virgin's bower. These wetlands will incur no impacts from this project. Some jurisdictional wetlands may be present downstream of the bridge site and potentially will receive inputs from road construction. In the National Wetlands Inventory system (following Cowardin et al. 1979), all the streams in the area would be classified R3RB1H (Riverine, Upper Perennial, Rock Bottom, Permanently Flooded) with some tendency to R3UB1H (Unconsolidated Bottom). The small fringe wetlands [collectively less than 0.1 hectare (<O.33 acre)] along Buffalo Creek would be classified PEM1B (Palustrine, Emergent, Persistent, Sand) or PUS2B (Palustrine, Unconsolidated Shore, Sand, Saturated). It may be impossible to 15 avoid these in project design and construction. A description of apparent or potential jurisdictional wetland sites is provided in Table 2 on page 10 of this document. It is difficult to judge the extent of wetland impacts, except for actual takings under R/W, until the particular design requirements are known for the terrain in question. Permits In accordance with provisions of Section 404 of the Clean Water Act (33 U.S.C. 1344), a permit is required from the COE to discharge and place fill materials into any jurisdictional wetlands or surface waters affected by construction. Nationwide Permits [33 CFR 330.5 (a)(14 and 26)] authorize actions that have no significant environmental effect, such as when dealing with road crossings of wetlands or waters of small size [<O.1 hectares (0.33 acre), short bridge crossings [<61 meters (<200 feet)], or because of their location above stream headwaters (1.5 cubic meters per second = 5 cubic feet per second) or in isolated wetlands or waters. Individual or General Permits are required for situations where the criteria for Nationwide Permits are not met. This project will impact the floodplain and riverine system of Buffalo Creek and small areas of fringe wetlands in the riparian zone. This project can be authorized under Nationwide Permit No. 14 because the bridge crossing does not exceed 61 meters (200 feet) in length and less than 0.1 hectare (0.33 acre) of wetlands potentially will be impacted. Other permits may be necessary. Because the project area lies in a trout county, discretionary authority by the COE requires that the NCDOT must seek review and concurrence from the North Carolina Wildlife Resources Commission (NCWRC) prior to the COE authorizing the project under one or more nationwide permits (pursuant to 33 CFR 330.8)(see attached letter from NCWRC). Nationwide Permit No. 23 [33 CFR 330.5 (a)(23)] would authorize the project following NCWRC concurrence. This permit is specifically designed for Categorical Exclusions. A 401 Water Quality Certification from the Water Quality Section of the Division of Environmental Management in NCDEHNR will be required for construction activity in surface waters where a federal permit is required. This certification is required prior to issuance of the 404 permit. Mitigation The project will cause unavoidable impacts to jurisdictional surface waters and a small amount of palustrine wetlands. There are no other feasible alternatives for crossing Buffalo Creek at this location. Impacts can be minimized, as noted elsewhere in this document. However, compensatory mitigation is generally not required where Nationwide Permits or General Permits are authorized, pursuant to a Memorandum of Understanding between the Environmental Protection Agency and the COE. When an 16 Individual Permit is required, all sites have to be accumulated for mitigation purposes. Final discretionary authority in these matters rests with the COE. Nonetheless, utmost care must be taken in designing and placing all structures and roadway in order to minimize impact. Properly installed and appropriate kinds of drainage culverts and catch basins will help minimize impacts. Appropriate erosion control devices will have to be installed to prevent avoidable storm water discharges into streams and wetlands, and soil stabilization measures must be taken as quickly as possible during and after construction of banks, fills, graded areas, culverts, bridges, and other areas where the soil will be disturbed. Sediment and erosion control measures and borrow locations should not be placed in wetlands. Federally Protected Species Species classified as Threatened (T), Endangered (E), Proposed Threatened (PT), and Proposed Endangered (PE) receive federal protection under Section 7 and Section 9 of the Endangered Species Act of 1973, as amended. As of March 28, 1995, the U. S. Fish and Wildlife Service reports five species with one of these classifications for Ashe County. The rock gnome lichen ( Gvmnoderma lineare, Endangered ) is found on rock outcrops and cliff faces, at high elevations or in humid gorges. Such environments typically occur above 1220 meters (4000 feet) or in deep gorges below 762 meters (2500 feet). Vertical rock faces with seepage water from higher forest soils that flows only at very wet times appears to be a habitat requirement. The taxon was not located during field study, and suitable habitat for this species does not occur in the project vicinity. Biological Conclusion: No effect. The Roan Mountain bluet (Hedyotis u urea var. montana, Endangered), a vascular plant in the Rubiaceae, is found on high elevation rocky summits or on grassy balds in five mountain counties. There were no bluets found during the field study, and the elevational requirements that produce suitable habitat for the Roan Mountain bluet are not present in the project vicinity. Biological Conclusion: No effect. The spreading avens (Geum radiatum, Endangered) is found on high elevation rocky summits and balds. It has been reported from eight mountain counties. Flowering is from June to August and fruiting from July to September. No plants of this genus were located in the study area, and the elevational requirements that produce suitable habitat for the spreading avens do not exist in the vicinity. Biological Conclusion: No effect. 17 Typical habitats for Heller's blazing star (Liatris helleri, Threatened) are high elevation rocky summits, ledges, and cliffs. No plants of the genus were found during the study, and the elevational requirements that produce suitable habitat for this species do not exist in the project vicinity. Biological Conclusion: No effect. The Virginia spiraea (Sniraea vir iiniana, Threatened) has been found on riverbanks in six mountain counties. The streambank and floodplain in the project area were carefully searched. This easy to identify plant was not found in the study area, nor were any other spiraeas located. However, suitable habitat does exist in the project area for this species. Available information did not indicate the existence of any populations in the project vicinity. Biological Conclusion: No effect. Construction of this project will have no adverse effect on any federally protected animal or plant species. 18 • J SturHdls A I • I • I I • I • I I • I • I • CrumO?er Scottville a \ II ur.? t • Laurel Spr1rH 4 ¦ West Jefferson ,p71p1 0 221 s' Pk 4 Ind endal ri pri el ? \ Baldwin a G S ? s r 7 y 091 s ? leetw Idlewil `• • • 1 ?"tGa ? I of ? f J 1351 • 2.08 • 1502 'f 1504 12 1503 40 ?a 1502 194 x o ?2 0D 25 1674 1505 I, FAS 0 .32 88 04 ___ 1506 T ' 76, 1507 80 V,eK \ ) ?? 1507 1672 North Carolina Department Of Transportation Planning & Environmental Branch ASBE COUNTY REPLACE BRIDGE NO. 352 ON SR 1506 OVER BUFFALO CREEK 13.3109 0 kilometers 1.6 kilometers 3.2 Figure 1 0 miles 1 miles 2 View of Eastern Approach View of Western Appraoch Sidewalk on North Side of Bridge ? Figl.ire 3 View of East End of Bridge View of North Face of Bridge View of West End of Bridge Figtu e 4 Buildin- on Southwest Corner of Bridge Home on Northeast Corner of Bridge Home on Southeast Corner of Bridge Fig eu ZONE X i / ZONE AE P z 2674 aJ 2675 ?i RM11 2676 05 9 2677 ZONE X v \ ZONE AE PROJECT SITE RM12 2683 2682 268 RM13 TIP ; Zito Federal Aid # Vy--j-• leio?. County T AsHE, CONCURRENCE FORi1•I FOR PROPERTIES NOT ELIGIBLE FOR THE NATIONAL REGISTER OF HISTORIC PLACES Brief Project Description 1ZEPLAr.6, Wy_i00-E IJo. °51r72 0W 4iZ. lcsoro eJER PJUFPALO GI On ?e?eue.R? S ?1'l?0 , representatives of the ? North Carolina Department of Transportation (NCDOT) Federal Highway Administration (FHwA) _v-1 North Carolina State Historic Preservation Office (SHPO) Other reviewed the subject project at A scoping meeting Historic architectural resources photograph review session/consultation Other All parties ;:resent agreed there are no properties over fifty years old within the project's area of potential effect. ? there are no properties less than fifty years old which are considered to meet Criterion Consideration G within the project's area of potential effect. ? there are properties over fifty years old (list attached) within the project's area of potential effect, but based on the historical information available and the photographs of each property, properties identified as Fr4r 0 _e, # 1 - ?3 are considered not eligible for the National Register and no further evaluation of them is necessary. ? there are no National Register-listed properties within the project's area of potential effect. Signed: 2 a 4` Represen ive DOT Ode FHwA, the Division Administrator, or other Federal Agency Date 2 Representative, HPO at Z Slate Historic Preservation Officer Da If a survey report is prepared, a final copy of this form and the attached list will be included. .SSa F A f <? 4f)y????? North Carolina Wildlife Resources Commission 9 512 N. Salisbury Street, Raleigh, North Carolina 27604-1188, 919-733-3391 Charles R. Fullwood, Executive Director MEMORANDUM TO: John L. Williams Planning and Environmental Branch, NCDOT FROM: Stephanie E. Goudreau, Mt. Region Coordinator Habitat Conservation Program ??7- ?'4? 22u- ? cfJ???.- DATE: February 23, 1996 SUBJECT: Review of scoping sheets for Bridge #352 over Buffalo Creek along SR 1506, Ashe County, TIP #B-3109. This correspondence responds to a request by you for our review and comments on the scoping sheets for the subject project. The North Carolina Department of Transportation (NCDOT) proposes to replace Bridge #352 with a new bridge on the existing location. Traffic will be maintained over a temporary bridge during construction. A Categorical Exclusion is being prepared for this project. Ashe County is a designation "trout county" however, Buffalo Creek does not support trout at the project location. For your general information, a 6-mile section of Buffalo Creek from the headwaters to the junction of NC 194-88 and SR 1131 is Hatchery Supported Designated Public Mountain Trout Water. This section is well upstream of the project site. Our comments to the U.S. Army Corps of Engineers regarding the upcoming 404 permit application will reflect that the stream does not support trout at the project site. In general, biological staff of the North Carolina Wildlife Resources Commission are pleased with the commitments outlined in your letter of 22 February 1996 that are presently included in the project document. We have the following specific comments: 1) The stream name in No. 5 should be changed from Little Silver Creek to Buffalo Creek. 2) The following condition should be added if applicable: "Construction must be accomplished so that wet concrete does not contact stream water. This will lessen the chance of altering the stream's water chemistry and causing a fish kill." Thank you for the opportunity to review and comment during the early stages of this project. If you have any questions regarding these comments, please contact me at 704/652-4257. Z-D ?? ` ` I d„a SrATEo Q W3 9 11(x`. N4 ?? North Carolina Department of Cultural Resources James B. Hunt Jr., Governor Betty Ray McCain, Secretary March 18, 1996 Nicholas L. Graf Division Administrator Federal Highway Administration Department of Transportation 310 New Bern Avenue Raleigh, N.C. 27601-1442 Re: Replace Bridge 352 on SR 1506 over Buffalo Creek, Ashe County, B-3109, Federal Aid Project BRZ-150611), State Project 8.2710701, ER 96- 8534 Dear Mr. Graf: Division of Archives and History Jeffrey J. Crow, Director Thank you for your letter of March 13, 1996, transmitting the metal truss bridge evaluation for the above project. We concur that Bridge 352 is not eligible for the National Register of Historic Places. The above comments are made pursuant to Section 106 of the National Historic Preservation Act and the Advisory Council on Historic Preservation's Regulations for Compliance with Section 106 codified at 36 CFR Part 800. Thank you for your.cooperation and consideration. If you have questions concerning the above comment, please contact Renee Gledhill-Earley, environmental review coordinator, at 919/733-4763. Si rely, David Brook , Deputy State Historic Preservation Officer C) DB:slw cc: H. F. Vick B. Church MR? aQ,, Q) 109 East Jones Street • Raleigh, North Carolina 27601-2807 g?3