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HomeMy WebLinkAbout19940836 Ver 1_Complete File_19940908 w.. SFP - 81994- STATE OF NORTH CAROLI DEPARTMENT OF TkANSPORTATION JAMES B. HUNT, JR. DIVISION OF HIGHWAYS R. SAMUEL HUNT III GOVERNOR P.O. BOX 25201, RALEIGH. N.G 27611-5201 SECRETARY September 2, 1994 H ? ?) ?p District Engineer Army Corps S ."?,f Engi.ieer 1 S? P. `'J . Box 1 8, 9 0 vY1ll.l_ ytGi .North Ca::G1=na ..84t?2 Dear Qi . S :b j ec:.. TraI: : l vaili a Of D'r d No . 7, 7 b-?;-j-_' , Sta4- F1'GjeCt ?G. P_,... Da- Nr to re-lace ti1-- above- of __ enc_ . __uct .? on __eTrv .. :,_ y i1. -?1- m11e a?;3w ?? nor S v "r C pp t :-` ? 1^7 1 _ r e?" cvee,... :z 4 construction. -TI-Le new b tic ?i??l to l0c- a oil ??U `let FTe t ai?d "rJ1 ` i _..IGI : pla•. e'_; nt cf Dri; ae 4 ia= t (f.v n d 2, 50 feet long. his pro-iect 's being processed ati a Catecg(Drlca.l EYci:is_on _n acccldance wit 1.3 C-R 771. -1' (...;) . we ex-'Dect t'o p'roc _ e'_. 'TP7it Irl tLhJLs p :: o?ect ltrl °_? Natlo !;^Tide accord,a ce wit-h 33 CP: ;30 Appedi<_ A (E-22) is Sued NoVE :ber - 1, by the U. Arm; CGr° - Gi EiLyill -er s . i'he G. _s:ions vi Sec icn 3-10 .4 and?Ap pendlI . A Gf tii.=S_ -_ uiations w7ll be `ollow-ed _ll t51_ CGIlSr; _iC ?i(7i1 J= t111S prGjeC?. Tile i+orth Carolina Wildlife Resource:. Commissicn (WRC) ila. _7Gt_4-:_=d that file French rroao River i5 .`iatC erlr suppc ri.ed Designated Public Mountain Trout `!1a`ar at th S location. Tit accordance with currel?t procedures for projects 1ccated in the designated trou% count-ieS the conct_r_ei_ce of aRC fiLi.`t be obtaiIled pi +Cr Lv ^^ol:StillCtion. Ey CGpJ c:: this letter, we hereby request that WRC review the proposed project and pr vide any comments they -find necessary. A copy of the CE document is included fcr the WRC review. En i If you have any questions or need additional information, please call Cyndi Bell at (919) 733-3141. Sincerely, Ii Qui ?, P.E. Lant Manager, Planning and Environmental Branch BJo/clh Attachment cc: COE, Asheville Field Office Micky Clemmons, WRC, District 9, Waynesville Stephanie Goudreau, WRC, Marion John Dorney, DEHNR, BEM John Parker, DEHNR. DCM/Permit Coordinator Kelly Earger, P . E . , Program Development Don Morton, P . E . , Highway Design A.L. Hankins, F.E., Hydraulics John L. Smith, Jr., P.E., Structure Design Tom Shearin, P.E., Roadway Design F.D. Martin, P.E., Division 14 Engineer Julie A. Hunkins, Planning & Environmental Davis Moore, Planning & Environmental US 276 Bridge No. 39 over French Broad River Transylvania County Federal-Aid Project BRSTP-276(1) State Project 8.1000501 B-2641 • CATEGORICAL EXCLUSION U.S. DEPARTMENT OF TRANSPORTATION FEDERAL HIGHWAY ADMINISTRATION AND N.C. DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS i Date H. Franklin Vick, P. E., Manager for Planning and Environmental Branch, NCDOT 7 zz 4 ? ozQ Date For Nicholas Gra , P. E. Division Administrator, FHWA US 276 Bridge No. 39 over French Broad River Transylvania County Federal-Aid Project BRSTP-276(1) State Project 8.1000501 B-2641 CATEGORICAL EXCLUSION July, 1994 Documentation Prepared in Planning and Environmental Branch By: CAR0, Ju 'e A. Hunkins, P. E. SEAL t _ P ect Planning Engineer = t 1$496 ;?GF.GINEE .? Vde E 11 i of ''f ge e Replacement Project Planning Unit Head q l? Lubin V. Prevatt, P. E., Assistant Manager Planning and Environmental Branch US 276 Bridge No. 39 over French Broad River Transylvania County Federal-Aid Project BRSTP-276(1) State Project 8.1000501 B-2641 Bridge No. 39 is included in the Federal-Aid Bridge Replacement Program. The location is shown in Figure 1. No substantial environmental impacts are anticipated. The project has been classified as a Federal "categorical exclusion". I. SUMMARY OF RECOMMENDATIONS Bridge No. 39 should be replaced on new location about 120 feet west of its present location, as shown by Recommended Alternate 2 in Figure 3. The recommended structure consists of a bridge 40 feet wide and 250 feet long. The recommended bridge width will accommodate a 24-foot travelway with 8 feet of lateral clearance on each side. The approach roadway will provide a 24-foot travelway with 8-foot graded shoulders. Traffic will be maintained on the existing structure during the construction period. The estimated cost, based on current prices, is $ 1,144,000. The estimated cost of the project, as shown in the 1995-2001 Transportation Improvement Program, is $ 1,105,000. II. SUMMARY OF ENVIRONMENTAL COMMITMENTS All standard procedures and measures will be implemented to avoid or minimize environmental impacts. No wetlands will be disrupted by implementation of this project. Best Management Practices will be utilized to minimize construction impacts. Per request of the North Carolina Wildlife Resources Commission, the following measures will be incorporated into the proposed project: (1) If concrete is used, construction will be accomplished so that wet concrete does not contact river water. (2) Native trees and shrubs will be planted at the site of the old bridge once the structure is removed to provide bank stability and shade the river. (3) Temporary ground cover will be placed on all bare soil during .construction. Permanent vegetation in these same areas will be established within 15 days of ground disturbing activities to provide long term erosion control. 2 To reduce the potential for impacts to water resources, and erosion control measures (Best Management Practices) wi enforced during the construction stage of this project. I operations will be carefully planned to minimize disturba existing stream banks. Any material excavated for footing! water will be removed from the immediate vicinity to previ eroding back into the water. Runoff crossing the construct be directed into temporary silt basins via lateral ditches w dams to slow and filter the runoff prior to discharging int Approach roadway fill slopes will be stabilized with see temporary silt ditches, silt fence, etc. shall be provided fill. Grass berms along the top of the fill slope will be i runoff laterally to temporary slope drains, which empty in- sediment basins. Early placement of rip-rap slope protectio implemented to protect against surface erosion. Special att given to proper installation and maintenance of all ero. sedimentation control devices. sedimentation 1 be strictly :onstruction ice of the in or near !nt it from ion area will ith rock check o the river. ling, and it the toe of sed to convey :o temporary i will also be ?ntion will be ion and Coordination with the North Carolina Wildlife ResourceIs Commission (NCWRC) indicates the French Broad River supports heavy fishing pressure in this area. The NCWRC has requested that NCDOT examine the feasibility of retaining right-of-way to allow room for anglers to park -their vehicles off the side of the road near either the existing or new ridge. In addition, the NCWRC has requested that access be provided to? allow anglers to carry car-top boats safely to the river to a canoe ramp. (Consideration will be given during design of the project to retaining the existing right of way and grading the old approach roadway at the existing bridge site to, provide access to the river once new bridge construction is complete. No new barriers, such as rip rap, should be introduced at the a cess point to the river; this will facilitate use of this area by fishermen and boaters. III. EXISTING CONDITIONS US 276 is classified as a rural minor arterial in the Statewide Functional Classification System and is part of the Federal-Aid System. The proposed project study area lies in Transylvania County (Figure 1) in the extreme southwestern part of the Mountain Physiographic Province. Transylvania county's major economic resource include agriculture, industry, and tourism. Development in the project area is predominantly rural. A few residences are located in the general project area. In the vicinity of the bridge, US 276 has a pavement w dth of about 21 feet with 2-foot to 4-foot shoulders (see Figure 2). Th posted speed limit on US 276 is 55 MPH. The existing bridge is located on a poor horizontal alignment (see Figure 3). A sharp curve of about 18 degrees exists immediately north of Bridge No. 39. The roadway is nearly tangent immediately south of the bridge. 3 SR 1540 forms a "T" intersection with US 276 approximately 300 feet south of Bridge No. 39. A private drive is located on the northeast quadrant of the project about 350 feet north of the bridge. Overhead utility lines cross over US 276 on the south approach, approximately 80 feet from the end of the bridge. A conduit is attached to the east side of Bridge No. 39. No other utilities have been identified in the immediate vicinity of the project. The current traffic volume of 4800 vehicles per day (VPD) is expected to increase to 9100 VPD by the year 2016. The projected volume includes 1% truck-tractor semi-trailer (TTST) and 2% dual-tired vehicles (DDT). The existing bridge (see Figure 2), constructed in 1927, consists of reinforced concrete floor on girders, supported by concrete piers and vertical full-height abutments. The 5-span structure is approximately 186 feet long and has a 20-foot clear travelway. A commemorative plaque on this structure designates Bridge No. 39 as "Wilson Bridge." The bridge is hydraulically inadequate, as it is overtopped by the 10-year storm. Bridge No. 39 is not posted for restricted weight limits. Bridge No. 39 has a sufficiency rating of 42.1 compared to a rating of 100 for a new structure. The estimated remaining life for this structure is 10 years. Seven accidents in the vicinity of the project were reported during the period from November, 1989 to October, 1992. While one of these accidents occurred on Bridge No. 39, three of the accidents occurred at the US 276/SR 1540 intersection south of the bridge. There are a total of six school bus crossings daily over this bridge. IV. ALTERNATIVES Three methods of replacing Bridge No. 39 were studied. The alternates studied assume traffic is to be maintained on-site during the construction period due to lack of a suitable detour route. The replacement structure for the alternates studied consists of a bridge approximately 250 feet long. A minimum deck width of 40 feet, which would provide for two 12-foot travel lanes with 8 feet of lateral clearance on each side, is recommended. The approach roadway will consist of a 24-foot paved travelway with 8-foot graded shoulders. The roadway grade at the proposed structure will be approximately two feet higher than that of the existing bridge to improve the hydraulic conveyance of the structure. A minimum gradient of 0.3% is recommended for deck drainage. 4 The alternates studied, shown in Figure 3, are as follo s: Alternate 1 - Replace bridge approximately 80 feet west of its present location. The structure would be on a sli ht curve. .Approximately 1450 feet-of new approach roadway would be required to tie the replacement structure into the existing roadway. A minimum design speed of 55 MPH would be provided. Alternate 2 (Recommended) - Replace bridge on new location about 110 feet west of its present location. The replacement structure .would be located on a tangent. New approach roadway construction to the replacement structure will be necessary for a total distance of about 1320 feet. A minimum design speed of about 55 MPH will be provided. Alternate 3 - Replace bridge on new location about 120 feet east of its present location. About 1300 feet of new approach roadway construction would be needed. A design speed of about 40 MPH would be provided. Cursory consideration was given to replacement of the bridge at its existing location. This method of bridge replacement would require the construction of a costly temporary structure on-site to maintain traffic during construction. In addition, replacement of the bri ge at its existing location would not provide any improvement in the poor horizontal alignment on the north approach to the bridge. For these reasons, this replacement scenario was eliminated from further consideration. The "do-nothing" alternative would eventually necessitate closure of the bridge. This is not prudent due to the traffic service provided by US 276. "Rehabilitation" of the old bridge is not feasible due deteriorated condition. V. ESTIMATED COST The estimated cost of the alternates studied is as foll Structure Roadway Approaches Temporary Detour Structure Removal Engineering & Contingencies Right of Way, Utilities Total Recommender Alternate Alternate 1 2 $ 756,000 $ 696,000 313,000 24,000 158,000 247,000 24,000 133,000 62,000 44,000 $ 1,313,000 $ 1,144,000 o its age and ws: Alternate 3 $ 756,000 252,000 24,000 155,000 57,000 $ 1,244,000 5 VI. DISCUSSION OF RECOMMENDED IMPROVEMENTS Bridge No. 39 should be replaced approximately 110 feet west of its present location, as shown by Alternate 2 in Figure 3. Traffic will be maintained on the existing structure during the construction period. The recommended structure is a bridge about 250 feet long and 40 feet wide. The size of the structure. may be increased or decreased as necessary to accommodate peak flows as determined by further hydrologic studies. The proposed bridge width will accommodate a 24-foot travelway with a minimum of 8 feet of lateral clearance on each side. Approximately 1320 feet of new roadway will be constructed to tie the replacement bridge into the existing roadway. The recommended alignment will improve the horizontal alignment through the project area and reduce the sharp curvature of the roadway on the north approach to the bridge. The approach roadway will consist of two 12-foot lanes with 8-foot graded shoulders. The toe of fill ditches on the upstream (west) side of the existing roadway will require relocation to accommodate the proposed replacement structure and associated approach roadway. Of the alternates studied, Recommended Alternate 2 provides an improvement in the horizontal alignment through the project area at the lowest cost. Recommended Alternate 2 is estimated to cost $ 100,000 less than the next less costly alternative. Recommended Alternate 2 and Alternate 1 both provide a 55 MPH design speed while Alternate 3 would have a design speed of about 40 MPH. In addition, Recommended Alternate 2 results in the least amount of impact to Prime Farmlands of the alternatives studied. The division engineer concurs with the recommended alternate. VII. ENVIRONMENTAL EFFECTS The project is expected to have an overall positive impact. Replacement of an inadequate bridge will result in safer traffic operations. The project is considered to be a Federal "categorical exclusion" due to its limited scope and insignificant environmental consequences. The bridge replacement will not the quality of human life or natural NCDOT standards and specifications. have a significant adverse effect on environment with the use of current The topography of the project area is flat (typical of river floodplains) with increases in elevation to the north and south as NC 276 meanders over mountainous terrain. Low river bank levees are also located 6 on both the Transylvania level, while sea level. north and south bank of the French Broad River. County ranges from 1265 feet to 6043 feet abc project area elevation is approximately 2100 fE The Transylvania County general soil map contains associations. One soil association (Rosman-Toxaway-Trans crossed by the proposed project. This soil association well-drained to very poorly drained, nearly level soils that by loam and fine sandy loam or that have a subsoil dominan clay loam on floodplains. This association is mainly four French Broad River and its larger tributaries. Most of thi! has been cleared for agriculture. Man-dominated and mixed hardwood forest are the two communities found in the subject project study area. Dom components associated with these terrestrial areas are disc each community description; however, many species are ada entire range of habitats found along the project alignment mentioned in each community description. The man-dominated community, which is highly disturbed, shoulder, lawn, garden, and agricultural habitats. Many p' characteristic of the roadside, are adapted to disturbed at habitats. The intensely maintained (mowed) areas are doming Festuca spy, plantain P1 anta o sp. , and dandelion Tar Areas, such as ditch banks with less frequent maintenance exhibit more rank herbaceous and scrub/shrub vegetation, in dogwood Cornus amomum , black willow Salix ni ra , tag serrulata), red maple Acer rubrum , elderberry Sambucus privet ( Li gustrum spy, blackberry Rubus sp. , rose Rosa Viola sp.), and dock Rumex sp.). Agricultural fields, created in the floodplain of the River, are the dominant community component in the project a the last crop to have been grown here. This portion of the community is frequented by red-tailed hawk Buteo 'a? macen forages over open habitats for rodents, such as rats, mice reptiles, and amphibians. Many animals present in these disturbed habitats are and capable of surviving on a variety of forage resources, vegetation (flowers, leaves, seeds, and fruits) to animal m and dead). Virginia opossum Didel his virginiana), eas Scalo us aquaticus), northern cardinal (Cardinalis cardina' crow Corvus brachyrhynchos), and mourning dove Zenaida m examples of species attracted to lawns and gardens by the feeding stations and abundance of cultivated forage items humans. Carolina wren (Thryothorus ludovicianus), rufous-: Pi ilo er_ythrophthalmus), white-throated sparrow Zon albicollis), and several species of mice (Peromyscus spp.) less well-maintained margins or ecotones of road shoulders, fields, and gardens. Elevation in ve mean sea yet above mean six soil flvania) is includes are underlain fly of silty d along the association terrestrial nant faunal ssed below in ted to the nd may not be includes road ant species, d maintained ted by fescue ixacum sp.). schedules :luding silky lder Alnus ;anadensis), spy, violet French Broad ^ea. Corn was man-dominated Lis which rabbits, 1pportunistic ranging from fitter (living tern mole is), American icroura are year-round provided by tided towhee )trichia inhabit the agricultural 7 Mortality among animals, which migrate across roadways, provides forage for opportunistic species such as turkey vulture (Cathartes aura and Virginia opossum, which may in turn become fatalities and subsequently forage items themselves. Reptiles and amphibians, including toads, frogs, turtles, and snakes, may sun themselves on the roadside and even lie on the road surface at night to absorb heat. A black rat snake Ela he obsoleta was observed sunning on the eastern outer edge of the bridge structure. The mixed hardwood forest community forms a narrow buffer along the banks of the French Broad River. The forest tends to be wider on the river's north bank. The open canopy is composed of sycamore Platanus occidentalis), tulip tree (Liriodendron tulipifera), and beech Fa us grandifolia). Birds such as northern parula Parula americana) and blue-gray gnatcatcher (Polioptila caerulea are common nesters in this community layer. Subcanopy growth is spotty and is dominated by American holly Ilex o aca , black willow, and tag alder. Moderate to light ground cover, consisting of blackberry, rose, leucothue (Leucothoe sp. , yellowroot (Xanthorhiza simplicissima), and violet, becomes less dense with increased distance from the river bank. Animals previously mentioned may be found in this community, as well as two-lined salamander Eur cea bislineata) and slimy salamander (Plethodon glutinosus), which may reside under vegetative litter. Eastern box turtle (Terrapene carolina and rough green snake (Opheodrys aestivus are likely to range throughout the project study area. The aquatic community in the study area includes the French Broad River and an unnamed tributary of the French Broad River. These waterbodies have been loaded with sediments as a result of agricultural practices and urban development. Few areas of natural vegetation are left to act as buffer zones for storm runoff. River and stream banks, which are steep and heavily eroded, exhibit vegetation previously mentioned in both biotic community descriptions. Animals such as bullfrog Rana catesbeiana) and wood duck Aix s onsa may be found along the waters edge, along with mountain dusky salamander (Desmognathus ochrophaeus), crayfish (Family Cambaridae) and segmented worms (Oligocheates), which exist under stones and other debris on the river/stream bed. Some fish species likely to be found in this section of the French Broad River include golden shiner (Notemigonus crysoleucas), river chub Nocomis micropogon), flat bullhead (Ictalurus platycephalus), brown bullhead (Ictalurus nebulosus), muskellunge Esox masquinongy), smallmouth bass (Micropterous dolomieui), largemouth bass (Micropterous salmoides), and redbreast sunfish Le omis auritus . Impacts to terrestrial communities, particularly in locations exhibiting moderate to steep slopes, can result in the aquatic community receiving heavy sediment loads as a consequence of erosion. It is important to understand that construction impacts may not be restricted to the communities in which the construction activity occurs. 8 Few natural communities occur in the project area, communities have been highly fragmented and reduced as a previous development. The man-dominated community compon project area will receive the greatest impact from habital resulting in the loss and displacement of plant and animal to terrestrial communities will result in the loss of exist and displacement, as well as, mortality of animal species residence. Anticipated impacts to terrestrial communitie implementation of Recommended Alternate 2 will be approxima- of man-dominated community and 0.6 acre of mixed hardwot community. The total terrestrial impact of the project is e 3.2 acres, which is based on a 100-foot impact width. As mentioned previously, the aquatic component of the has already been altered by siltation from erosion due to dE agricultural practices along the French Broad River floodpli construction is likely to temporarily increase sediment lc French Broad River. Construction-related sedimentation can local populations of invertebrates which are important pai aquatic food chain. Less mobile organisms such as many of feeders may be covered and smothered by sedimentation rest construction related erosion. Local fish populations can a' by construction-related sedimentation. Increased sediment suspended particulates can lead to the smothering of fish e depth of light penetration in the water column, reduction ii oxygen carrying capacity, and changes in water temperature. The French Broad flows west to east through the propose and is approximately 60 feet wide and averages 5 feet deE substrate is composed of silt which overlays rock, gravel, unnamed tributary flows south to north along the west side joining the French Broad at the existing bridge. This strei depth is approximately 1.5 feet and 0.5 foot, respectively Resource Best Usage Classification relative to the water re! project site is Class C. Class C waters are suitable for propagation and survival, fishing, wildlife, secondary rec agriculture. The National Pollutant Discharge Elimination System (NF dischargers for the project area. The Benthic Macroinvertel Network (BMAN) addresses long term trends in water qualit, monitoring sites by the sampling for selected benthic macroi Good water quality is associated with high taxa richness (t different types of organisms) and the presence of many intoli Water quality degradation gradually eliminates the more sens and leads to a community structure quite different from t unstressed waterbody. Water quality associated with the F River west of the project alignment ranges from excellent t upon sampling between 1983 and 1987, however no current BMAP is available for the immediate project area. and those result of !nt of the reduction, ife. Impacts ing habitats :urrently in with the ely 2.6 acres d forest ;timated to be project area velopment and in. Project ads to the be harmful to ,ts of the the filter lting from so be harmed loads and ]gs, reduced i the water's project area >. River id sand. The of US 276, n's width and The Water )urces at the quatic life eation, and DES) lists no )rate Ambient r at fixed nvertebrates. he number of !rant species. itive species hat in an rench Broad fair based I information 9 Impacts to water resources in the project area could result from sedimentation and turbidity, as well as, non-point discharge of toxic substances from increased roadway surface area (engine fluids and particulate rubber). To reduce the potential for impacts to water resources, sedimentation and erosion control measures (Best Management Practices) will be strictly enforced during the construction stage of this project. Construction operations will be carefully planned to minimize disturbance of the existing stream banks. Any material excavated for footings in or near water must be removed from the immediate vicinity to prevent it from eroding back into the water. Runoff crossing the construction area will be directed into temporary silt basins via lateral ditches with rock check dams to slow and filter the runoff prior to discharging into the river. Approach roadway fill slopes shall be stabilized with seeding, and temporary silt ditches, silt fence, etc. shall be provided at the toe of fill. Grass berms along the top of the fill slope will be used to convey runoff laterally to temporary slope drains, which empty into temporary sediment basins. Early placement of rip-rap slope protection will also be implemented to protect against surface erosion. Special attention will be given to proper installation and maintenance of all erosion and sedimentation control devices. Wetlands and surface waters fall under the broad category of "Waters of the United States" as defined in 33 CFR 328.3 and in accordance with provisions of section 404 of the Clean Water Act (33 U.S.C 1344) and are regulated by the U.S. Army Corps of Engineers (COE). Project construction cannot be accomplished without infringing on jurisdictional surface waters. However, no wetlands will be impacted by the subject project. Investigation into wetland occurrence in the project impact area was conducted using methods of the 1987 Wetland Delineation Manual. Anticipated Surface Water Impacts fall under the jurisdiction of the U. S. Army Corps of Engineers (COE). Construction is likely to be authorized by provisions of General Nationwide permit 33 CFR 330.5 (A) 23. Transylvania County is one of 25 counties designated as having trout waters. Projects in these counties must be reviewed and approved by the North Carolina Wildlife Resources Commission prior to issuance of the COE Permit. Also, Section 401 of the Clean Water Act (CWA) requires that the state issue or deny water quality certification for any federally permitted or licensed activity that may result in a discharge to the waters of the United States prior to issuance of COE permits. Since this project will likely be authorized under a Nationwide permit, mitigation for impacts to surface waters is generally not required by the COE. A final determination regarding mitigation requirements rests with COE. 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. These activities will require authorization under Nationwide Permit No. 6. 10 A letter of comment has been obtained from the North Carolina Wildlife Resources Commission (NCWRC) regarding the propose project and is included as Attachment 1. Per request of the NCWRC, the following measures will be incorporated into the proposed project: (1) If concrete is used, construction will be accomplished so that wet concrete does not contact river water. (2) Native trees and shrubs will be planted at the site of the old bridge once the structure is removed to provide bank stability and shade the river. (3) Temporary ground cover will be placed on all bare soil during construction. Permanent vegetation in these same areas will be established within 15 days of ground disturbing a:tivities to provide long term erosion control. Coordination with the North Carolina Wildlife Resource (NCWRC) indicates the French Broad River supports heavy fis in this area. The NCWRC has requested that NCDOT examine th of retaining right-of-way to allow room for anglers to park 1 off the side of the road near either the existing or new b addition, the NCWRC has requested that steps be constructe bridge to allow anglers to carry car-top boats safely to the canoe ramp. Consideration will be given during design of tt retain the existing right of way and grade the old approach i existing bridge site to provide access to the river once i construction is complete. No new barriers, such as rip rap introduced at the access point to the river; this will facil this area by fishermen and boaters. Plants and animals with federal classifications of End Threatened (T), Proposed Endangered (PE) and Proposed Threat protected under provisions of Section 7 and Section 9 of th Species Act of 1973, as amended. The U. S. Fish and Wildl (USFWS) lists seven federally protected species for Transylvi of March 30, 1994. These species are listed in the table be' Commission ling pressure feasibility heir vehicles ridge. In 1 near the river to a e project to oadway at the iew bridge , should be itate use of angered (E), tined (PT) are Endangered ife Service nia County as ow. 11 Federally-Protected Species for Transylvania County SCIENTIFIC NAME COMMON NAME STATUS Alasmidonta veneliana Falco peregrinus Glaucomys sabrinus coloratus Geum radiatum Gymnoderma lineare elonias bullata Sarracenia rubra var. jonesii Appalachian elktoe PEO* peregrine falcon E Carolina northern flying squirrel E spreading avens E rock gnome lichen PE swamp pink T mountain sweet pitcher-plant E "E denotes Endangered (a species that is threatened with extinction throughout all or a significant portion of its range). "T" denotes Threatened (a species that is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range). "PE" denotes Proposed Endangered (a species that is proposed to be listed as endangered and which is protected under law while its status is under review). "*" No specimen from Transylvania County found in at least twenty years. A description of and biological for each of these federally protected species is included in Appendix A. Federal Candidate species are not legally protected under the Endangered Species Act and are not subject to any of its provisions, including Section 7, until they are formally proposed or listed as Threatened or Endangered. The following table includes federal candidate species listed for Transylvania County and their state classifications. Organisms which are listed as Endangered (E), Threatened (T), or Special Concern (SC) by the North Carolina Natural Heritage Program list of Rare Plant and Animal species are afforded state protection under the State Endangered Species Act and the North Carolina Plant Protection and Conservation Act of 1979. 12 Federal Candidate Species (and their State Statu) Listed for Transylvania County COMMON NAME STATUS (Scientific name) Federal /State HAB ITAT Rafinesque's big-eared bat C2 SC N Q Plecotus rafinesquii * New England cottontail C2 SR N O Sylvilagus transitionalis eastern woodrat C2 SC N Neotoma floridana magister bog turtle C2 T N Clemmys muhlenbergii green slamander C2 E N O Aneides aeneus hellbender C2 SC N Cryptobranchus alleganiensis French Broad stream crayfish C2 W3 N Cambarus reburrus Transylvania crayfish ostracod C2 SR N Waltoncythere acuta Diana fritillary butterfly C2 SR YE Speyeria diana Alexander's rock aster C1 C N O Aster avitus gorge moss C2 E N Bryocrumia vivicolor Manhart's sedge C2 C Ni Carex manhartii A liverwort C2 C Ni Cheilolejeunea evansii French Broad heartleaf C2 C N Hexastylis rhombiformis Fraser's loosestrife C2 E Y6 Lysimachia fraseri Carolina mnium C2 C N Mnium carolinianum sweet pinesap C2 C N Monotropsis odorata A liverwort C2 E NO Plagiochila caduciloba A liverwort C2 C N Plagiochila echinata A liverwort C2 C NO Plagiochila sharpii A liverwort C2 C N Plagiochila sullivantii var. sullivantii * 13 A liverwort C2 C NO Plagiochila virginica var. caroliniana * A liverwort C2 C NO Plagiochila virginica var. euryphylla * Pringle's eurhynchium C2 C NO Platyhypnidium pringlei highlands moss C2 T NO Schlotheimia lancifolia Oconee-bells C2 E-SC NO Shortia galacifolia Oconee-bells C2 E-SC NO Shortia galacifolia var. brevistyla NOTE: Species presented in bold are afforded state protection. "*" No specimen from Transylvania County found in at least 20 years. No habitat for protected species occurs in the project study area. No impacts to protected species will result from proposed project construction. The project is located within the Western Mountain Air Quality Control Region. The ambient air quality for Transylvania County has been determined to be in compliance with the National Ambient Air Quality Standards. This project is not anticipated to create any adverse effect on air quality of this attainment area. It is noted the impact on air quality will be insignificant. If vegetation is disposed of 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. The project will not significantly increase traffic volumes. Therefore, its impact on noise levels will be insignificant. Noise levels could increase during construction but will be temporary. • This project has been coordinated with the State Historic Preservation Office (SHPO). Correspondence from the SHPO is included as Attachment 2. The SHPO concurs that the only structure in the Area of Potential Effect (APE) which is over 50 year old -- the bridge itself -- is not eligible for inclusion in the National Register Of Historic Places. Bridge No. 39 is a type of concrete bridge which is prevalent throughout the state. An archaeological study for the subject project area has been completed and reviewed by the SHPO. The SHPO concurs with NCDOT's findings that significant archaeological resources will not be affected by this bridge replacement project (see Attachment 3). No additional archaeological investigations are recommended for this project. 14 Transylvania County is a participant in the National Food Insurance Regular Program. This crossing of the French Broad River i included in the detained flood study. The existing floodplain is rural with some wooded areas along the riverbanks. There are no buildings with floor elevations below the 100-year elevation in the floodplain, and the proposed bridge replacement project will have no adverse effect on the existing floodplain, and the proposed project will not increase the 100-year floodplain elevation more than 1.0 foot. The placement of minor amounts of fill material in the floodplain in conjunction with this project will not seriously affect the floodplain. The approximate limits of the 100-year floodplain are shown in Figure 4. Coordination with the U. S. Soil Conservation Service indicates that all of the alternatives studied will impact prime farmland. Alternates 1 and 2 would impact roughly the same amount of prime farmland, at 2.22 acres and 2.21 acres, respectively. Alternative 3 would imp ct 2.54 acres of prime farmland soils. However, the assessment indicates that the farmland impacts of the proposed improvements do not exceed the numeric threshold at which consideration of mitigation or other alternatives should occur. Because of the limited amount of farmable land in mountainous Transylvania County, the alternative which affects the least amount of farmland (Recommended Alternate 2) is most desirable. The Farmland Conversion Impact Rating Form (Form AD-1006) is included as Attachment 4. On the basis of the above discussion, it is concluded that no serious adverse environmental effects will result from implementation of the project. JH/plr 1352 1350 5 -r?l\ 1341 / 64 ::::•:' 1359 Cre k 2 6 D e Lamb 1 1 : c n 2.4 504 . 15330 Pisgah Forest t •i J'• \' • • • Sta. ' :?:? • ? i'•'•? i •?? ,BREVARb'a 'Z;S i h to 1600 I. R0 P ??.. X323 y% 1600 1601 1.0 1574 1540 J 1602 1595 64 N4 1596&' 76 1543 1540.2 1580 1541 ? y O 64 2 1 i:: ;ry 9 0 .•:: * r 1603 .......... Ij• 1540 P 11194 LAPP. Q ? •9 • 1537 1114 ? 8 ? ?.. 1184 • NORTH CAROLINA :NT OF TRANSPORTATION DIVISION OF HIGHWAYS PLANNING AND ENVIRONMENTAL US 276 BRIDGE NO. 39 OVER FRENCH BROAD RIVER TRANSYLVANIA COUNTY B-2641 0 mile 1 FIG. 1 B - 2641 BRIDGE NO. 39 ANSON COUNTY LOOKING NORTH ON US 276 FROM BRIDGE NO. 39 LOOKING SOUTH ON US 276 AT US 276 / SR 1540 INTERSECTION FROM BRIDGE NO. 39 SIDE VIEW OF BRIDGE NO. 39 FIGURE 2 ¦ 40 PROJECT SITE Mile 196 ¦ AREA NOT INCLUDED 100 - YEAR FLOODPLAIN Round Top Cern I \\• Mile 200 A z . o \? • ,V.Carr Hill Ch R coy .?\ •• e -41 ?Y o I I II II Bec o ?o?nson ?. ? 1 O? 1 US 276 BRIDGE NO. 39 OVER FRENCH BROAD RIVER TRANSYLVANIA COUNTY B-2641 FIGURE 4 ® North Carolina Wildlife Resources Commission 512 N. Salisbury Street, Raleigh, North Carolina 27611, 919-733-3391 Charles R. Fullwood, Executive Director MEMORANDUM TO: Julie A. Hunkins, P. E. North Carolina Department of Transportation FROM: Stephanie E. Goudreau, Mt. Region Coordinator Habitat Conservation Program DATE: March 12, 1993 SUBJECT: Scoping comments regarding impacts to trout from replacing Bridge #39 on US 276 over French Broad River, Transylvania County (TIP #B-2641) This correspondence responds to a request by you for our comments regarding impacts to trout from replacing Bridge #39 over the French Broad River in Transylvania County. The French Broad River is Hatchery Supported Designated Public Mountain Trout Water at the bridge and for 22 miles upstream. The North Carolina Wildlife Resources Commission (NCWRC) also stocks this area with muskellunge, a popular gamef ish . The NCWRC does not object to any of the alternatives presented, as our major concern is that the existing bridge be replaced with a new spanning structure. Other recommendations include the following: 1) If concrete will be used, construction must be accomplished so that wet concrete does not contact river water. This will lessen the chance of altering the river's water chemistry and causing a fish kill. 2) Native trees and shrubs should be planted at the site of the old bridge once the structure is removed to provide bank stability and shade to the river. 3) Temporary ground cover (e.g. hardwood mulch, straw, etc.) must be placed on all bare soil during construction. Permanent vegetation in these same areas must be established ATTACHMENT I within 15 days of ground disturbing activities to prov de long term erosion control. The French Broad River supports heavy fishing pressure in this area, and the NCWRC would like to increase access to t e river where possible for anglers. We request that the NCDO examine the feasibility of retaining right-of-way to allow ioom for anglers to park their vehicles off the side of the road near either the existing or new bridge. If this need can be met, then constructing steps near the bridge would allow anglers to c rry car-top boats safely down to the river to a canoe ramp. The NCWRC would be willing to work with the NCDOT to provide t is access. I appreciate the opportunity to provide this informat'lon request in the early planning stages of this project. If I can be of further assistance, please contact me at 704/652-4254. cc: Mr.. Micky Clemmons, District 9 Fisheries Biologist Mr. David Yow, NCWRC Highway Coordinator d ? STATE o NOV 2192 North Carolina Department of Cultural Resrces James G. Martin, Governor Divisio hnyoid'1-iistory Patric Dorsey, Secretary William i e, r., Director October 29, 1992 Nicholas L. Graf Division Administrator Federal Highway Administration Department of Transportation 310 New Bern Avenue Raleigh, N.C. 27601-1442 3 ? o n us Z 79 Re: Replace Bridge No. 2_' over French Broad River, Transylvania County, B-2641, 8.1000501, BRSTP- 276(1), GS 93-0017 Dear Mr. Graf: On October 13, 1992, Robin Stancil of our staff met with North Carolina Department of Transportation (NCDOT) staff for a meeting of the minds concerning the above project. We reported our available information on historic architectural and archaeological surveys and resources along with our recommendations. NCDOT provided project area photographs and aerial photographs at the meeting and for our use afterwards. Based upon our review of the photographs and the information discussed at the meeting, we offer our preliminary comments regarding this project. We feel that Bridge No.12?76_ -the only structure over fifty years of age in the area of potential effect--is not eligible for listing in the National Register since it is a type of concrete bridge prevalent throughout the state. We recommend that a comprehensive survey be conducted by an experienced archaeologist to identify the presence and significance of archaeological remains that may be damaged or destroyed by the proposed project. Potential effects on unknown resources should be assessed prior to the initiation of construction activities. Having provided this information, we look forward to receipt of either a Categorical Exclusion or Environmental Assessment which indicates how NCDOT addressed our concerns. The above comments are made pursuant to Section 106 of the National Historic Preservation Act of 1966 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 109 EastJones Street • Raleigh, North Carolina 27601-2807 ATTACHMENT 2 Nicholas L. Graf October 29, 1992, Page 2 concerning the above comment, please contact Renee Gledhill-Earley, environmental review coordinator, at 919/733-4763. Sincerely, David Brook Deputy State Historic Preservation Officer DB:slw cc: `L. J. Ward B. Church T. Padgett •" ha e.a 57ATt o? V ti.s North Carolina Department of Cultural Resources James B. Hunt, Jr., Governor Betty Ray McCain, Secretary January 21, 1994 Nicholas L. Graf Division Administrator Federal. Highway Administration Department of Transportation 310 New Bern Avenue Raleigh, N.C. 27601-1442 Re: Replace Bridge 82 on SR 1 129 over French Broad River, B-2642 (ER 93-8119); Bridge 39 on' US 276 over French Broad River, B-2641 (GS 93-0017); Bridge 69 on US 64 over North Fork French Broad, B-2171 (GS 92-0021), Transylvania County, ER 94-8059 Dear Mr. Graf: Division of Archives and History William S. Price, Jr., Director Thank you for your letter of December 23, 1993, transmitting the archaeological survey report by Kenneth Robinson concerning the above projects. One archaeological site, 31 TV584, was identified during the course of these three surveys. The report evaluates this site as not eligible for listing on the National Register of Historic Places. We concur with the evaluation and recommend no further investigations. The above comments are made pursuant to Section 106 of the National Historic Preservation Act of 1966 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. ,Sincerely, D d Brook Deputy State Historic Preservation Officer ?-DB:slw cc: H. F. Vick ATTACHMENT 3 109 East Jows Street - Raleigh, North Carolina 27601-2807 U.S. Department of Agriculture FARMLAND CONVERSION IMPACT RATING PART I (To be cornoleted by Federal Agency) Oats Of Land Evaluation Reauest SGT a ?c c? 3 Name Ot Project l1 a\-o y 1 Feoeral Agency involved rroposed Land Use County And State ?C C\N cJe -4-4-- C lnM? S ?Vcr'0. Ca. t ?• G PART 11 (To be completed by SCS) Date Request Recstved By SCS Ooes the site contain prime, unique, statewide or local important farmland? Yes No (/f no, the FPPA does not apply - do not complete additions/ parts of this form). ? ? Acres Irrigated -- Average Farm Size 1 '7 Maior Croo(s) n „ I ? Farmable Land in Govt. Jurisdiction Acres. -2,1 u ? 2 % ` . D-- Amount Of Farmland As Defined in PPA Acres. - % L Name Of Land Evaluation System Used Name Of Local Sits Assessment System Oat* Land Evaluation Returned By SCS PART I I I (To be c F d b d l l Alternative Site aun y e era omp ete Agency) Site A Site a Site C Site D A. Total Acres To Be Converted Directly 3• 3. B. Total Acres To Be Converted Indirectly C. Total Acres In Site 3, a 3 , 3.5 PART IV (To be completed by SCSI Land Evaluation Information A. Total Acres Prime And Unique Farmland ! ;;, `7 q- B. Total Acres Statewide And Local Important Farmland C. Percentage Of Farmland In County Or Local Govt Unit To Be Converted r I rL L, f t L: ?i• I of D. Percentage Of Farmland In Govt. Jurisdiction With Same Or Higher Relative Value 7cf, Q •a ` PART V jTo be completed by SCS) Land Evaluation Criterion Relative Value Of Farmland To Be Converted (Sale of0to 100Poinis) PART V I (To be completed by Federal Agency) Site Assessment Criteria IThem criteria are aapWa#d In 7 CFR 6583•(6) Maximum Points 1. Area In Nonurban Use C? 0\ 2. Perimeter In Nonurban Use \d O \a D 3. Percent Of Site Being Farmed p 4. Protection Provided By State And Local Government ap 5. Distance From Urban Builtup Area 6. Distance To Urban Support Services 7. Size Of Present Farts Unit Compared to Average \O O o 8. Creation Of Nonfarmable Farmland p p 9. Availability Of Farm Support Services 75 tj -75 -?5 10. On-Farm lnvestmems p O 11. Effects Of Conversion On Farm Support Services o 12 Compatibility With Existing A 'cultural Use o .: ,; : , :•.:::;:: ; :.. . TOTAL SITE ASSESSMENT POINTS 160 $ L{ g y ?L{ 'ART VII (To be completed by Federal Agency) Relative Value Of Farmland (From Parr V) 100 ?3 . $ 3 8 to 3 % '>''`' ` '-? Total z Site s:tMAssessment (From Parr V/ above or a lots/ 160 g y ?? y L) TOTAL POINTS (Total of above ?lines) 260 Liz • 8 1 y - •`? I Li (- • 3 !to Selected: Date Of Selection Was A Local Site Amrum*m Used? Yes ? No ? sason rot ATTACHMENT 4? APPENDIX A: Federally-Protected Species in Transvlvania Countv: Biological Assessments and Conclusions for Replacement of Bridge No. 39 on US 276 over French Broad River Federallv-Protected Species in Transylvania County: Biological Assessments and Conclusions for Replacement of Bridge No. 39 on US 276 over French Broad River Alasmidonta zraveneliana (Appalachian elktoe) Status: Proposed Endangered Animal Family: Unionidae Date Listed: 9/3/93 Distribution in N.C.: Buncombe. Graham, Haywood. Macon, Mitchell. Swain, Transylvania, Yancey. The Appalachian elktoe is a small mussel with a maximum length reaching up to 8.0 cm. Its shell is thin although the shell is not fragile nor subovate (kidney-shaped). The periostracum (outer shell) of the adult Appalachian elktoe is dark brown in color, while juveniles have a yellowish-brown color. Two known populations of the Appalachian elktoe exist in North Carolina; the Nolichucky River (including its tributaries of the Cane River and the North Toe River), and the Little Tennessee River and its tributaries. The Appalachian elktoe has been observed in gravelly substrates often mixed with cobble and boulders, in cracks of bedrock and in relatively silt-free, coarse sandy substrates. BIOLOGICAL CONCLUSION: NO EFFECT No habitat for this species exists in the project study area. It can be concluded that the subject project will not impact the Appalachian elktoe. Falco pereorinus (Peregrine falcon) Status: Endangered Animal Family: Falconidae Date Listed: 3/20/84 Distribution in N.C.: Avery, Brunswick, Burke. Carteret. Dare, Hyde, Jackson, Madison, New Hanover, Rutherford, Surry, Transylvania, Wilkes, Yancey. The peregrine falcon has a dark plumage along its back and its underside is lighter, barred and spotted. It is most easily recognized by a dark crown and a dark wedge that extends below the eye forming a distinct helmet. The American peregrine falcon is found throughout the United States in areas with high cliffs and open land for foraging. Nesting for the falcons is generally- on high cliff ledges, but they may also nest in broken off tree tops in the eastern deciduous forest and on skyscrapers and bridges in urban areas. Nesting occurs from mid-'March to May. Preys for the peregrine falcon consists of small mammals and birds, including mammals as large as a woodchuck, birds as large as a duck., and insects. The preferred prey i- medium sized birds such as pigeons. BIOLOGICAL CONCLUSION: NO EFFECT No nesting habitat exist for this species in the roject study area. It can be concluded that the subject prof et will not impact this federally endangered species. Glaucvmys sabrinus c.oloratus (northern flying squir1rel) Status: Endangered Animal Family: Sciurdiae Date Listed: 7/1/8 Distribution in N.C.: Avery, Buncombe, Graham, H ywood, Jackson. McDowell, Mitchell, Swain. I Transylvania, Watauga, Yancey. The Carolina northern flying squirrel has a larg well furred flap of skin along either side of its body. T is furred flap of skin is connected at the wrist in the ront and at the ankle in the rear. The skin flaps and its broad flattened tail allow the northern flying squirrel to ,lide from tree to tree. It is a solely nocturnal animal with large dark eyes. There are several flying squirrel in the the Tennessee border. meters (5000 ft) in the hardwood and coniferous to search for food and nesting sites. isolated populations of the northern western part of North Carolina, along This squirrel is found above X517 vegetation transition zone b tween forests. Both forest types re used the hardwood forest is used f r BIOLOGICAL CONCLUSION: NO EFFECT No habitat exists in the project study area for the northern flying squirrel. It can be concluded that the subject project will not impact this federally endangered species. A-3 Geum radiatum (spreading avens) Status: Endangered Plant Family: Rosaceae Federally Listed: April 5, 1990 Flowers Present: June - early Jul-, Distribution in N.C.: Ashe, Avery, Buncombe, Burke, Caldwell, :Mitchell. Stokes, Transylvania, Watauga, Yancey. Spreading avens is a perennial herb having stems with an indefinite cyme of bright yellow radially symriietrical flowers. Flowers of spreading avens are present from June to early July. Spreading avens has basal leaves which are odd- pinnateiy compound: terminal leaflets are kidney shaped and much larger than the lateral leaflets, which are reduced or absent. Spreading avens is found only in the North Carolina and Tennessee sections of the Southern Appalachian Mountains. Spreading avens occurs on scarps, bluffs, cliffs and escarpments on mountains, hills, and ridges. Known populations of this plant have been found to occur at elevations of 1535-1541 meters (.5060-5.'080 feet), 1723-1747 meters (5650-5760 feet) and 1159 meters (5800 feet). other habitat requirements for this species include full sunlight and shallow acidic soils. These soils contain a composition of sand, pebbles, humus, sandy loam, clay loam, and humus. Most populations are pioneers on rocky outcrops. BIOLOGICAL CONCLUSION: NO EFFECT No habitat exists in the project study area for spreading avens. It can be concluded that the subject project will not impact this federally endangered species. G.virinoderma lineare (Rock gnome lichen) Status: Proposed Endangered Federally Listed: December 28, 1994 Distribution in N.C.: Ashe, Avery. Buncombe, Graham, Haywood. Jackson, Mitchell, Rutherford, Swain, Transylvania, Yancey. The rock gnome lichen is a squamulose lichen in the reindeer moss family. The lichen can be identified by its fruiting bodies which are born singly or in clusters, black in color, and are found at the tips of the squamules. The fruiting season of the rock gnome lichen occurs from July through September. The rock gnome lichen is a narrow endemic, restricted to areas of high humidity. These high humidity environments A-3 occur on high elevation (> 1220 m/ 4000 ft) mountaintops and cliff faces which are frequently bathed in fog or lowe - elevation (< 762 m/ 2_500 ft) deep gorges in the Southe n Appalachians. The rock gnome lichen primarily occurs n vertical rock faces where seepage water from forest so'ls above flows at (and only at) very wet times. The rock gnome lichen is almost always found growing with the moss Idreaea in these vertical intermittent seeps. The major threat of extinction to the rock gnome lichen relates directly t habitat alteration/loss of high elevation coniferous forests. These coniferous forests usually lie adjacent to the habitat occupied by the rock gnome lichen. The high elevation habitat occurs in the counties of Ashe, Avery, Buncombe, Graham, Haywood, Jackson, Mitchell, Rutherford, Swain, Transylvania. and Yancey. The lower elevation habitat of the rock gnome lichen can be found in the counties of Jackson, Rutherford and Transylvania. BIOLOGICAL CONCLUSION: NO EFFECT No habitat exists in the project study area for the rock gnome lichen. It can be concluded that the subject p oject will not impact this Proposed Endangered species. Helonias bullata (swamp pink) Status: Threatened Plant Family: Liliaceae Federally Listed: September 9, 19SS Flowers Present: May (first half) Distribution in N.C.: Henderson. Jackson, Transylvania. Swamp pink is a perennial plant that grows from tuberous rhizomes. It has lance-shaped, smooth, evergreen leives that .row in basal rosette. Swamp pink has a hollow stem that is topped with a short, dense, spike-like raceme of pinL or purplish flowers. The North Carolina populations of swamp pink ar6 limited to bogs in the southern Appalachians in Transylvania Jackson, and Henderson counties. Swamp pink is found in freshwater wetlands areas including spring seepages, swamps, bogs, meadows, and along the margins of meandering s reams. Soils that it occurs in are described as being sligh ly acidic (pH:4.2-4.9), having a thin layer of decompos-d organic matter, underlain by a black to dark gray silt loam that is slightly sticky, with many small roots and fine mica chips. Populations are found in areas with varying amounts of shade but populations in open areas are less vigorous due to increased competition from other species. =\-4 BIOLOGICAL CONCLUSION: NO EFFECT No habitat exists in the project study area for swamp pink. It can be concluded that the subject project will not impact this Threatened species. Sarl'acenla rubra var. jonesiY (mountain sweet pitcher plant) Status: Endangered Plant Family: Sarraceniaceae Federally Listed: :March 10, 19SS Flowers Present: May (late) Distribution in N.C.: Buncombe, Henderson, Transylvania. Mountain sweet pitcher plant is an insectivorous, rhizomatous, perennial herb. Leaves of this plant grow erect and in clusters.' Each leaf is shaped like a hollow, trumpet shaped, almost tubular pitcher covered by a cordate hood. Pitchers are a waxy dull green color and reticulately veined with maroon-purple. The inside of the pitchers is retrorsely haired and usually partially filled with liquid and decaying insect parts. The maroon colored flowers are borne singly on erect scapes and have recurving sepals. Flowers are present during late May and fruits appear in August. The mountain sweet pitcher plant is found in bogs and streamsides in southwestern North Carolina and northwestern South Carolina. This habitat is characterized by deep, poorly drained wetlands with soils that are combinations of loam. sand. and silt, with a high organic content and medium to highly acidic pH. Sites are intermittently exposed to flooding. This plant is an early successional plant that relies on drought, water fluctuation, periodic fire, and ice damage to maintain its habitat. BIOLOGICAL CONCLUSION: NO EFFECT No habitat exists in the project study area for the mountain sweet pitcherplant. It can be concluded that the subject project will not impact this Endangered species. ;- i' US 276 Bridge No. 39 Over French Broad River Transylvania County B-2641 t BRIDGE PROJECT SCOPING SHEET Date TIP# - Z 41 State Pro j ect# D . I ooo 5-0 F.A. Project#_ UST'-Z?L(I) Division 14 County_ Tra n ly/,(n 1/.l, Route 5 7.76 Purpose of Project Description of P -for Revision Date Project Development Stage Programming Planning Design . t. Replace Obsolete Brid e ie t: J i z 0 0 ti Method of Replacement: X. Existing Location -road closure 2. Existing Location - on-site detour 3. Relocation ----- -- 4. Other Will there be special funding participation b developers, or other? Yes y municipality, - No If yes, by whom and amount: ($) ?1 Page 1 t BRIDGE PROJECT SCOPING SHEET Traffic: Current VPD Design Year TTST % DT % Typical Roadway Section: VPD Existing Structure: Length] K feet Width ,ofeet Proposed Structure: Bridge - Length feet Width feet or Culvert - Size @ feet by feet Detour Structure: Bridge - Length feet Width feet or Pipe - Size inches Construction Cost (including engineering and contingencies) .............................. $ Right of Way Cost (including rel., util., and acquisition) ................................ $ Force Account Items ................................. $ Total Cost...... Z 0 0 y TIP Construction Cost ............................... $ 0 TIP Right of Way Cost......... Q TIP Total Cost......, Page 2 .r 'j F BRIDGE PROJECT SCOPING SHEET a K z 0 0 -i Additional Comments: Ala Prepared By Date Page 3 ij ------- - _ -- --- - -- N ---- l- - ?,? ii - ?.i _?? .'? --___.-_ ? _ - I -_?' -__- N. C. DEPARTMENT OF TRANSPORTATION DATE TRANSMITTAL SLIP ' REF. NO. ROOM" DG. FROM REF. OR ROO 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 ? PREPARE REPLY FOR MY SIGNATURE ? SIGNATURE ? TAKE APPROPRIATE ACTION ? INVESTIGATE AND REPORT COMMENTS: r d STAEo 2 8 ?? ?"" ?• rWAT)ECRY STATE OF NORTH CAROLINA NUSCROUP ALITY SE CTION' DEPARTMENT OF TRANSPORTATION P.O. BOX 25201 RALEIGH 27611-5201 JAMES G. MARTIN DIVISION OF HIGHWAYS GOVERNOR THOMAS J. HARRELSON October 19, 1992 WILLIAM G. MARLEY, JR., P.E. SECRETARY STATE HIGHWAY ADMINISTRATOR MEMORANDUM TO: File FROM: Julie A. Hunkins, P. E. Project Planning Engine SUBJECT: Scoping Meeting Minutes for B-2641, Replacement of Bridge No. 39 on US 276 over French Broad River in Transylvania County A scoping meeting was held on Tuesday, October 13, 1992, at 10:00 AM in Room 470 of the Highway Building. The following people attended: Eric Galamb Robin Stancil Abdul Rahmani Jerry Sneed Sue Flowers Herman Lancaster Ray Moore Gerald White Danny Rogers Patrick Riddle JoAnn Giglio Julie Hunkins DEHNR/DEM/Water Quality Dept. of Cultural Resources/SHPO Hydraulic Design Hydraulic Design Roadway Design Roadway Design Structure Design Structure Design Program Development Traffic Control Traffic Control Planning & Environmental . Additional information on traffic volumes and hydraulic design was provided at the scoping meeting (see attached revised scoping sheets). The speed limit through the project area is 55 MPH. The roadway alignment on the north approach is poor; which lends an opportunity for an improved alignment by replacing the hridge on new location. Early coordination with the division office indicates that traffic should be maintained on-site during the construction period. Additionally, the division office requested that an alternative on new location (east of the existing bridge) be considered; traffic coul_" be maintained on the existing bridge during construction. An Equal Opportunity/Affirmative Action Employer Based on the classification of US 276 as a rural minor arterial and the projected traffic volumes, the recommended structure width is 40 feet; this width will accommodate a 24-foot travelway with 8 feet of lateral clearance on each side. The Hydraulics Unit recommends a replacement bridge 240 feet long. The roadway grade should be approximately two feet higher than the existing grade, and the bridge should be placed on a minimum grade of 0.3 o for drainage purposes. As a result of the scoping meeting, two alternatives will be studied. In each case, traffic would be maintained on the existing structure during the construction period. The alternatives are as follows: Alternate 1 - Replacement of the bridge east of its existing location. Alternate 2 - Replacement of the bridge west of its existing location. The Division of Environmental Management has indicated that wetland areas be assessed for all of the alternatives evaluated in the planning document. The removal of old approach roadway fill should be investigated for potential mitigation of possible wetland losses. Coordination with the State Historic Preservation Office indicates that there appear to be no historic architectural resources in the project's Area of Potential Effect (APE). JH/jh attachment . ,r BRIDGE PROJECT SCOPING SHEET i z 0 0 TIP#_ Zl 41 State Project#_ R. dQQ ?? F.A. Project# B' 5 17P ' Division 4 Date Revision Date qo7? Project Development Stage Programming Planning Design County_ Tra0 Route ___U S Z'V Purpose of Project: Replace Obsolete Brid e Description of Project: ?t P,YI 1 2 t-0 a l'i V Method of Replacement: 1. Existing Location - road closure 2. Existing Location - on-site detour 3. Relocation ? 4. Other Will there be special funding participation by municipality, developers, or other? Yes___ If yes, by whom and amount: ($) Page I BRIDGE PROJECT SCOPING SHEET K OO 50o v P? Traffic: Current '07F77) VPD De,?jgn Year VPD ZU/? ?/DO V/°'D TTST % DT -% 1?y v = la?o? 1)/9 = ('o Typical Roadway Section: Existing Structure: Length_]M feet Width feet Proposed Structure: Bridge - LengthA& eet Width0 feet or Culvert - Size -@ _feet by feet Detour Structure: Bridge - Length feet Width feet or Pipe - Size inches Construction Cost (including engineering and contingencies) .............................. $ Right of Way Cost (including rel., util., and acquisition) .............. Force Account Items ................................. $ Total Cost.. ...................... $ TIP Construction Cost $- 1 (2,50, 60 0 TIP Right of Way Cost......... 2 O Q TIP Total Cost .......................... $ o64 o oO 0 i z 0 0 Page 2 i ;/ '. } BRIDGE PROJECT SCOPING SHEET v z 0 0 -1 Additional Comments: Prepared By i141?92? Date Z y A"Z. iq AL / ca V. Page 3