The URL can be used to link to this page

Home My WebLink About20030909 Ver 1_Morphological Measurement Table_20030203~~l~ U 3 Appendix B Morphological Measurement Table U-2524AC, Guilford Co. r:~ - ~-2s2~ ~c 5~~ ZI o-P- ~ 6 Variables Existing Channel Proposed Reach USGS Station Reference Reach 1. Stream Type Pond E5 - E5 2. Drainage Area (D.A.) 14.4 ha / 35.6 ac 14.4 ha / 35.6 ac - 14.4 ha / 35.6 ac 3. Bankfull Width (W pk,) - 3.00 m / 9.84 ft - 2.10 m / 6.89 ft 4. Bankfull Mean Depth (dGk,) - 0.32 m / 1.03 ft - 0.37 m / 1.20 ft 5. Width/Depth Ratio (Wbk,/doa) - 9.55 - 5.74 6. Bankfull Cross-Sectional Area (AbM) - 0.94 m2 / 10.17 ft2 - 0.77 m2 / 8.29 ft2 7. Bankfull Mean Velocity (Vok,) - 0.95 m/s / 3.13 fUs - 1.10 m/s / 3.62 fUs 8. Bankfull Discharge (Qpk,) - 0.90 m3/s / 31.8 ft'/s - 0.85 m'/s / 30.0 ft3/s 9. Bankfull Max Depth (dm6k1) - 0.45 m / 1.48 ft - 0.60 m / 1.97 ft 10. Width of Floodprone Area (W,P,) - 35.9 m / 117.86 ft - 10.6 m / 34.9 ft 11. Entrenchment Ratio (W,o,/Woa) - 11.97 - 5.07 12. Meander Length (Lm) - 29.0 m / 95.1 ft - 20.0 m / 65.6 ft 13. Ratio of Meander Length to Bankfull Width (Ln,/Wn~n) 9.67 - 9.52 14. Radius of Curvature (R~) - 4.10 m / 13.45 ft - 5.75 m / 18.9 ft 15. Ratio of Radius of Curvature to Bankfull Width (Rc~oa) - 1.37 - 2.74 16. Belt Width (Welt) - 9.7 m / 31.8 ft - 4.5 m / 14.8 ft 17. Meander Width Ratio (YJb„l1Np;~}) 3 23 _ 2 14 18. Sinuosity (K) (stream length/valley length) - 1.18 - 1.06 19. Valley Slope (VS) - 2.00% - 2.12% 20. Average Slope (CS) - 1.69°0 - 2.00% 21. Pool Slope - 0.00% - 0.00% 22. Ratio of Pool Slope to Average Slope - 0.00 - 0.00 23. Maximum Pool Depth (dpm~) - 0.75 m / 2.46 ft - 0.80 m / 2.63 ft 24. Ratio of Pool Depth to Average Bankfull Depth (dp/dbk,) - 2.34 - 2.19 25. Pool Width (WP) - 3.9 m / 12.8 ft - 4.0 m / 13.1 ft 26. Ratio of Pool Width to Bankfull Width (WdWokf) - 1.30 - 1.90 27. Pool to Pool Spacing - 18.0 m / 59.0 ft - 13.0 m / 42.7 ft (avg.) 28• Ratio of Pool to Pool Spacing to Bankfull Width - 6.00 - 6.20 29. Ratio of Lowest Bnk Height to Bankfull Height (or Max Bankfull Depth) (Bh,O1ldmbk,) 1.00 - 0.83 T lrc~ lritc~nrcrl Terlwicul Gniclc Jirr Strrurn l6'rrrh in Nnrth Carolina (c) ` ~ .. _ ~ ' Gregory J. Thorpe, Ph.D. _ - §401 Water Quality Certification No. 3435 1 U-2524 AB/AC Modification, DWQ# 030909 March 23, 2005 D~VQ Project No.: County: Applicant: Project Name: Date of Issuance of 401 Water Quality Certification: Certificate of Completion Upon completion of all work approved within the 401 Water Quality Certification or applicable Buffer Rules, and any subsequent modification:>, the applicant is required to return this certificate to the 401/Wetlands Unit, North Carolina Division of Water Quality, 1650 Mail Service Center, Raleigh, NC, 27699-1650. This form maybe returned to DWQ by the applicant, the applicant's authorized agent, or the project engineer. It is not necessary to send certificates from all of these. Applicant's Ccrtificatio~z f ~y I, ,hereby state that, to the best of my abilities, due care and diligence was used in the observation of the construction such that the construction was observed to be built within substantial compliance and intent of the 401 Water Quality Certification, the approved plans and specifications, and other supporting materials. Signature: Date: Agent's Certification I, ,hereby state that, to the best of my abilities, due cane and diligence was used in the observation of the construction such that the construction was observed to be built within substantial compliance and intent of the 401 Water Quality Certification, the approv plans and specifications, and other supporting materials. f~,,su;_ Signature: Engineer's Certification Partial Final I, , as a duly registered Professi of North Carolina, having been authorized to observe (periodically, weekly, full the project, for the Permittee hereby state that, to the best of my abilities, due ca in the observation of the construction such that the construction was observed t~' substantial compliance and intent of the 401 Water Quality Certification, the ~s, specifications, and other supporting materials. ;'_ Signature Date %rr ~ ~ Gregory J. Thorpe, Ph.D. ~ ~ §401 Water Quality Certification No. 3435 ~ U-2524 AB/AC Modification, DWQ# 030909 March 23, 2005 19. NCDOT and its authorized agents shall conduct its activities in a manner consistent with State water quality standards (including any requirements resulting from compliance with §303(d) of the Clean Water Act) and any other appropriate requirements of State law and Federal law. If D~'VQ determines that such standards or laws are not being met (including the failure to sustain designated or achieved use) or that State or federal law is being violated, or that further conditions are necessary to assure compliance, DWQ may reevaluate and modify this certification to include conditions appropriate to assure compliance with such standards and requirements in accordance with 15A NCAC 2H.0507(d). Before modifying the certification, OWQ shall notify iv'CDOT and the US Army Corps of Engineers, provide public notice in accordance with 15A NCAC 2H.0503 and provide opportunity for public hearing in accordance with 15A NCAC 2H.0~04. Any new or revised conditions shall be provided to NCDOT in writing, shall be provided to the United States Army Corps of Engineers for reference in any permit issued pursuant to Section 404 of the Clean ~f: Water Act, and shall also become conditions of the 404 Permit for the project. n~' 20. NCAC 2H.0503 and provide opportunity for public hearing in accordance with 15A NCAC 2H.0504. Any new or revised conditions shall be provided to NCDOT in writing, shall be provided to the United States t'lrmy Corps of Engineers for reference in any permit issued pursuant to Section 404 of the Clean Water Act, and shall also become conditions of the 404 Permit for the project. NCDOT shall require its contractors (and/or agents) to comply with all of the terms of this Certification, and shall provide each of its contractors (and/or agents) a copy of this Certification. Violations of any condition herein set forth may result in revocation of this Certification and may result in criminal and/or civil penalties. This Certification shall become null and void unless the above conditions arc made conditions of the Federal Permit. This Certification shall expire upon the expiration of the 404 Permit. This Modification and its conditions supercede previous Certifications. This Certification shall expire upon the expiration of the 404 Permit. do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. Est act within 60 days of the date that you receive this letter. To ask for a hearing, send a written hat conforms to Chapter 1 SOB of the North Carolina General Statutes to the Office of ~.tive Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This certification and its -e final and binding unless you ask for a hearing. This the 23`d day of March 2005 DIVISION OF WATER QUALITY ~-~~~,~. ~~ Alan W. Klimek, P.E.