CATHEY'S CREEK TECHNICAL WATERSHED ASSESSMENT ...

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CATHEY’S CREEK TECHNICAL WATERSHED ASSESSMENT Project Atlas

CATHEY’S CREEK WATERSHED HYDROLOGIC UNIT 03050105070020 RUTHERFORD COUNTY, NORTH CAROLINA

Ecosystem Enhancement Program 1619 Mail Service Center Raleigh, NC 27699

Earth Tech of North Carolina, Inc. 701 Corporate Center Drive, Suite 475 Raleigh, NC 27607

JULY 2005 Modified from original. All landowner information removed, including that in tables, figures, and text. Introduction, Table 1, and subwatershed maps included (AJL, October 12, 2011)

Modified from original. All landowner information removed, including that in tables, figures, and text. Introduction, Table 1, and subwatershed maps included (AJL, October 12, 2011) TABLE OF CONTENTS 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0

INTRODUCTION.................................................................................................................1 SUBWATERSHED 01 SUMMARY DESCRIPTION .......................................................13 SUBWATERSHED 02 SUMMARY DESCRIPTION .......................................................22 SUBWATERSHED 03 SUMMARY DESCRIPTION .......................................................29 SUBWATERSHED 04 SUMMARY DESCRIPTION .......................................................30 SUBWATERSHED 05 SUMMARY DESCRIPTION .......................................................36 SUBWATERSHED 06 SUMMARY DESCRIPTION .......................................................43 SUBWATERSHED 07 SUMMARY DESCRIPTION .......................................................48 SUBWATERSHED 08 SUMMARY DESCRIPTION .......................................................55 SUBWATERSHED 09 SUMMARY DESCRIPTION .......................................................62 SUBWATERSHED 10 SUMMARY DESCRIPTION .......................................................74 SUBWATERSHED 11 SUMMARY DESCRIPTION .......................................................75 SUBWATERSHED 12 SUMMARY DESCRIPTION .......................................................83 SUBWATERSHED 13 SUMMARY DESCRIPTION .......................................................87 SUBWATERSHED 14 SUMMARY DESCRIPTION .....................................................100

FIGURES Figure 1. Catheys Creek Vicinity Map ............................................................................................5 Figure 2. Catheys Creek Sub-watershed Map..................................................................................6 Figure 3. Catheys Creek Subwatershed 01 ....................................................................................14 Figure 4. Catheys Creek Site 01a...................................................................................................15 Figure 5. Catheys Creek Site 01b ..................................................................................................16 Figure 6. Catheys Creek Site 01c...................................................................................................17 Figure 7. Catheys Creek Site 01d ..................................................................................................18 Figure 8. Catheys Creek Site 01e...................................................................................................19 Figure 9. Catheys Creek Subwatershed 02 ....................................................................................23 Figure 10. Catheys Creek Site 02a.................................................................................................24 Figure 11. Catheys Creek Site 02b ................................................................................................25 Figure 12. Catheys Creek Site 02c.................................................................................................26 Cathey’s Creek Project Atlas July 2005

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Figure 13. Catheys Creek Subwatershed 04 ..................................................................................31 Figure 14. Catheys Creek Subwatershed 04a ................................................................................32 Figure 15. Catheys Creek Site 04b ................................................................................................33 Figure 16. Catheys Creek Subwatershed 05 ..................................................................................37 Figure 17. Catheys Creek Site 05a.................................................................................................38 Figure 18. Catheys Creek Site 05b ................................................................................................39 Figure 19. Catheys Creek Site 05c.................................................................................................40 Figure 20. Catheys Creek Subwatershed 06 ..................................................................................44 Figure 21. Catheys Creek Site 06a.................................................................................................45 Figure 22. Catheys Creek Site 06b ................................................................................................46 Figure 23. Catheys Creek Subwatershed 07 ..................................................................................49 Figure 24. Catheys Creek Site 07a.................................................................................................50 Figure 25. Catheys Creek Site 07b ................................................................................................51 Figure 26. Catheys Creek Site 07c.................................................................................................52 Figure 27. Catheys Creek Subwatershed 08 ..................................................................................56 Figure 28. Catheys Creek Site 08a.................................................................................................57 Figure 29. Catheys Creek Site 08b ................................................................................................58 Figure 30. Catheys Creek Site 08c.................................................................................................59 Figure 31. Catheys Creek Subwatershed 09 ..................................................................................64 Figure 32. Catheys Creek Site 09a.................................................................................................65 Figure 33. Catheys Creek Site 09b ................................................................................................66 Figure 34. Catheys Creek site 09c .................................................................................................67 Figure 35. Catheys Creek site 09d .................................................................................................68 Figure 36. Catheys Creek Site 09e.................................................................................................69 Figure 37. Catheys Creek Site 09f .................................................................................................70 Figure 38. Catheys Creek Site 09g ................................................................................................71 Figure 39. Catheys Creek Subwatershed 11 ..................................................................................76 Figure 40. Catheys Creek Site 11a.................................................................................................77 Figure 41. Catheys Creek site 11b .................................................................................................78 Figure 42. Catheys Creek Site 11c.................................................................................................79 Figure 43. Catheys Creek Site 11d ................................................................................................80 Figure 44. Catheys Creek Subwatershed 12 ..................................................................................84 Figure 45. Catheys Creek Site 12a.................................................................................................85 Cathey’s Creek Project Atlas July 2005

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Figure 46. Catheys Creek Subwatershed 13 ..................................................................................89 Figure 47. Catheys Creek Site 13a.................................................................................................90 Figure 48. Catheys Creek Site 13b ................................................................................................91 Figure 49. Catheys Creek Site 13c.................................................................................................92 Figure 50. Catheys Creek Site 13d ................................................................................................93 Figure 51. Catheys Creek Site 13e.................................................................................................94 Figure 52. Catheys Creek Site 13f .................................................................................................95 Figure 53. Catheys Creek Site 13g ................................................................................................96 Figure 54. Catheys Creek Site 13h ................................................................................................97 Figure 55. Catheys Creek Subwatershed 14 ................................................................................101 Figure 56. Catheys Creek Site 14a...............................................................................................102 TABLES Table 1. Prioritized Subwatershed Site Information........................................................................7 Table 2. Landowner Information .....................................................................................................9 Table 3. Subwatershed 01 Site Information...................................................................................13 Table 4. Subwatershed 02 Site Information...................................................................................22 Table 5. Subwatershed 04 Site Information...................................................................................30 Table 6. Subwatershed 05 Site Information...................................................................................36 Table 7. Subwatershed 06 Site Information...................................................................................43 Table 8. Subwatershed 07 Site Information...................................................................................48 Table 9. Subwatershed 08 Site Information..................................................................................55 Table 10. Subwatershed 09 Site Information................................................................................62 Table 11. Subwatershed 11 Site Information.................................................................................75 Table 12. Subwatershed 12 Site Information.................................................................................83 Table 13. Subwatershed 13 Site Information.................................................................................87 Table 14. Subwatershed 14 Site Information...............................................................................100

Cathey’s Creek Project Atlas July 2005

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1.0 INTRODUCTION General Information This Project Atlas is designed to accompany the Watershed Management Plan (Earth Tech, 2005) for the Cathey’s Creek watershed (HU 03050105070020 in the Broad River Basin). It is intended to assist the Implementation Staff of the Ecosystem Enhancement Program in locating potential watershed improvement projects identified in the Watershed Management Plan and initiating project development. Hard-copy maps showing potential project sites at the sub-watershed scale as well as at the individual site scale are included in this document. A digital GIS database, provided on CD, includes additional data layers not displayed on the field maps as well as the complete attribute tables for all data layers. Large maps based on USGS topographic quadrangles and 1998 aerial photography are also provided at a scale convenient for navigation around the watershed. The Cathey’s Creek Watershed runs from northwest to southeast through north-central Rutherford County, with the northernmost tip forming a portion of the Rutherford-McDowell County boundary. See Figure 1 in this atlas. It is located between the Broad and Second Broad Rivers. The total watershed area is 44.77 square miles and the main channel length of Cathey’s Creek is 19.2 miles long. The headwaters of Cathey’s Creek originate at the northwest end of the watershed on low mountains that fall within the Blue Ridge physiographic province. The remainder of the watershed lies within the Piedmont physiographic province. Elevations in this area range from 2,508 feet on the summit of Rich Mountain to about 1,200 feet at the foothills of these mountains. Elevations range from 1,200 feet in the foothills to 806 feet where Cathey’s Creek joins the Second Broad River. The average channel slope is 44.8 feet/mile. The hilly terrain is very finely dissected by numerous drainages that coalesce to form six major tributaries to Cathey’s Creek. The major municipalities are located in the flatter terrain at the lower end of the basin. Mapping The atlas was developed using mapping, data, field observations, and other information that was compiled and analyzed for three previous reports—the Initial Watershed Characterization and Sampling Plan (Earth Tech, 2003), the Critical Area Analysis (Earth Tech, 2005), and the Watershed Management Plan (Earth Tech, 2005). These reports should be consulted for detailed information on GIS information sources and analysis and GIS updates and calculations that were performed by Earth Tech. Figure 2 in this atlas shows the 14 sub-watersheds in the Cathey’s Creek and highlights the four priority sub-watersheds (01, 08, 09, and 13) that are discussed in the Watershed Management Plan. The base mapping was developed using BasinPro 3.1 and other sources according to procedures documented in the Initial Watershed Characterization. For the Critical Area Analysis, two important updates created by Earth Tech should be noted. These updates were used in all subsequent reports, including this atlas.

Cathey’s Creek Project Atlas July 2005

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1) New layers were created for streams and buffers by digitizing these features as they appeared on 1998 color infrared Digital Orthophoto Quarter Quadrangles. Buffers were delineated along the streams at distances of 10 and 30 feet from the stream. Three buffer categories were defined and streams segments were classified by visual inspection of the aerial photo according to these categories. This buffer classification is shown on Figure 2 of the Critical Area Analysis and can be viewed in the digital version of this atlas. 2) The USGS land use/land cover layer was updated based on field observations of newly cleared land. The extent of clearing was not delineated in the field, so clearing estimates are based on parcel boundaries and/or visual estimates of boundaries. Site Identification Potential project sites listed in this atlas were identified by a combination of procedures—mainly the potential site identification procedure (referred to as GIS Analysis 2 on mapping) and field sampling as described in the Critical Area Analysis. The potential site identification procedure described in the Initial Watershed Characterization (referred to on mapping as GIS Analysis 1) was ignored in favor of the later procedure that used updated stream and buffer information. Visual analysis of aerial photography was also used to identify potential sites in areas of the sub-watershed that were not directly sampled or observed. Potential project sites are displayed on Figures 3 through 56 in this atlas. The following criteria were considered when identifying potential project sites: • • • • • • •

Stream project length greater than 1500 ft Five or fewer landowners (except for residential stormwater BMPs) Inadequate buffer along stream Livestock access to stream Field observations indicating functional degradation (restoration or enhancement potential as indicated by eroding banks, lack of sinuosity, channel incision, etc.) If site was not sampled, visually appears similar on aerial photography to sampled sites (e.g., lacks sinuosity and/or forested buffer) and was assumed to have similar degradation issues. Potential for stormwater BMP retrofits and/or significant community interest

It should be noted that reaches of only 300 feet were sampled, so potential stream project segments highlighted on the maps in this atlas were defined visually from aerial photography and/or cut off at parcel boundaries. Buffer widths along these segments can be viewed in the digital atlas. Narrative descriptions of sub-watershed characteristics and field sampling sites from the Critical Area Analysis are included here for convenience. See Appendix A of that document for a table of individual site scores and measurements. Cathey’s Creek Project Atlas July 2005

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A hazard analysis and full investigation of constraints was beyond the scope of this report. Any potential constraints observed during field sampling were noted and are included in the narrative descriptions of the sample sites. Potential Project Ranking Potential project sites were listed in an Excel spreadsheet with fields for key ranking criteria such as presence in a priority watershed and number of landowners. See Table 1 in this atlas. The projects are grouped into four categories as follows • • • •

Group 1 - sites that are in a priority sub-watershed and may be funded by EEP entirely or in part. Within this group, sites are sorted by number of landowners. Group 2 - sites that are also in a priority sub-watershed, but are not projects that can be funded by EEP or have more than 5 landowners Group 3 - sites that are not a priority watershed but may be funded entirely or in part by EEP. Within this group, sites are sorted by number of landowners Group 4 - sites that are not in a priority sub-watershed, and are not projects that can be funded by EEP but may be of interest to local resource professionals.

This table is included with the GIS database submitted on CD and may be expanded to include additional fields and/or resorted as needed. Table 2 lists the names and addresses of landowners for every site identified in Table 1 that has 5 or fewer landowners. Complete parcel information for the entire Cathey’s Creek watershed is included with the GIS database submitted on CD.

Cathey’s Creek Project Atlas July 2005

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Abbreviations Field lengths for attribute tables in the GIS are limited to 10 characters, so a list of abbreviations used in Tables 1 and 2 is included here. FieldSite FigNum LgthFtTot N NS NumOwners NumParcels PrioritySW SubWS_site TyAgBMP TyBuffEnh TyBuffRest TyForBMP TyLvstkBMP TyStormBMP TyStrmEnh TyStrmRest Y

Field sampling site as described in the Critical Area Report Figure number in Project Atlas on which potential project site is shown Total length in feet of a potential stream restoration or enhancement segment No Not sampled Number of landowners Number of parcels Priority sub-watershed Potential project ID number, combination of subwatershed number and a letter Type of potential project-Agricultural BMPs Type of potential project-Buffer enhancement (increasing width of existing inadequate buffer) Type of potential project-Buffer restoration (planting a buffer where absent) Type of potential project-Forestry BMPs Type of potential project-Livestock BMPs Type of potential project-Stormwater BMPs Type of potential project-Stream enhancement Type of potential project-Stream restoration Yes

Cathey’s Creek Project Atlas July 2005

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NumParcels

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TyStormBMP

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13f 13h 09c 13a 09e 01d 01e 09d 09f 09g 13b 13c 13d

2665 560 0 5930 1930 0 0 3449 2182 3204 1115 4613 1919

YES YES YES YES YES YES YES YES YES YES YES YES YES

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4 4 4 4 5 1 4 5 >5 >5 >5 >5 >5

N N N Y N N N N N N N N N

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N N Y N N N N N Y Y Y Y Y

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Cathey’s Creek Project Atlas July 2005

Notes

pair w/01b High school airport horse farm, 5 acres wetland potential pair w/01c Broyhill factory cow pasture

Hollands Creek at POTW

Grouping

Group 1 sites are in a priority subwatershed and may be funded by EEP entirely or in part. Within this group, sites are sorted by number of landowners.

Tanner factory

Group 2 sites are also in a priority subwatershed, but are not projects that can be funded by EEP or have more than 5 landowners. Page 7

NumParcels

NumOwners

TyStrmRest

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TyForBMP

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TyStormBMP

1 2 2 2 5 3

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N Y Y Y N Y

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N N N N N N

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FieldSite

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FigNum

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Y Y Y Y Y N

Y N N Y N Y

Y Y Y N Y Y

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11-02 07-02 06-02 07-05 11-01 02-01 07-01 12-01 0402,03,04 06-04 11-03 02-03 11-05 05-02,03

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NO NO NO NO

11 2 2 2

7 1 2 2

Y N N N

N N N N

N Y N Y

Y N N N

N N N N

Y N N Y

Y N Y N

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Cathey’s Creek Project Atlas July 2005

Notes

5 acres wetland potential same owner as 01b

Grouping

Group 3 sites are not a priority watershed but may be funded entirely or in part by EEP. Within this group, sites are sorted by number of landowners.

>5 owners but excellent potential Group 4 sites are not in a priority subwatershed, and are not projects that can be funded by EEP.

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FIGURE 55