I-485 (Charlotte Outer Loop)
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PROJECT COMMITMENTS I-485 (Charlotte Outer Loop) From I-77 to US 521 (Johnston Road) South of Charlotte Mecklenburg County Federal Aid Project IMNHF-485-(8) WBS Element 39929.1.1 TIP Project No. R-4902 Project Development and Environmental Analysis Branch One noise sensitive area has been identified within the project limits, based upon preliminary noise studies. The impacted receptors are located near the I-485 interchange with South Boulevard and will be further studied during final design to more accurately determine anticipated noise impacts and to identify appropriate mitigation measures. Additional public involvement will be performed if noise mitigation measures are warranted. A Section 404 Individual Permit is anticipated as a result of the proposed project. In addition to the 404 permit, other required authorizations include the corresponding Section 401 Water Quality Certification from the North Carolina Division of Water Quality. The Section 401 Water Quality Certification will be required prior to the issuance of a Section 404 Individual Permit. NCDOT will perform a quantitative Mobile Source Air Toxics (MSAT) analysis and the results will be placed in the administrative record. If the quantitative MSAT analysis indicates MSAT emissions will increase as a result of this project, NCDOT will present the findings of this analysis to the public and to environmental review agencies prior to making a final decision as to how to proceed with the project. NCDOT Division 10 NCDOT Division 10 will coordinate with Charlotte-Mecklenburg County Parks and Recreation Department prior to construction regarding temporary closures of McAlpine Creek and McMullen Creek greenways during construction. This coordination will allow appropriate time needed for public notice in advance of the closures and to provide detour information. NCDOT Division 10 will coordinate with the Town of Pineville Volunteer Fire Department and the Charlotte-Mecklenburg Emergency Management agency (MEDICS) to allow Pineville Fire Department/MEDICS to plan for and mitigate any potential disruption in access and/or increase response time. NCDOT Division 10 will coordinate with the Charlotte-Mecklenburg County School System to allow Transportation Department to make any necessary plans regarding bus routes in the project area. NCDOT Division 10 will coordinate with Charlotte Area Transit System (CATS) to allow for necessary planning regarding mass transit routes/schedules and commuter programs in the project area. This project involves construction activities on or adjacent to FEMA-regulated streams. Therefore, the Division shall submit sealed as-built construction plans to the R-4902 Categorical Exclusion Page 1 of 2 Hydraulics Unit upon completion of project construction, certifying that the drainage structures and roadway embankment that are located within the 100-year floodplain were built as shown in the construction plans, both horizontally and vertically. NCDOT Hydraulics Unit- Floodplain Mapping Program Coordination The Hydraulics Unit will coordinate with Charlotte-Mecklenburg Storm Water Services and PMP, the delegated state agency for administering FEMA’s National Flood Insurance Program, to determine the status of the project with regard to applicability of NCDOT’s Memorandum of Agreement with FMP, or approval of a Conditional Letter of Map Revision (CLOMR) and subsequent final Letter of Map Revision (LOMR). R-4902 Categorical Exclusion Page 2 of 2 TABLE OF CONTENTS PAGE SUMMARY ................................................................................................................ i A. Description of Proposed Action .............................................................................. i B. Summary of Purpose and Need ............................................................................. i C. Project Cost, Schedule, and Funding .................................................................... i D. Alternatives Considered .......................................................................................... i E. Summary of Environmental Effects ........................................................................ ii F. Permits Required ..................................................................................................... ii G. Coordination ............................................................................................................. ii H. Additional Information .............................................................................................. iii I. DESCRIPTION OF PROPOSED ACTION ........................................................ 1 II. NEED AND PURPOSE FOR PROJECT ........................................................... 1 A. Need for Project ....................................................................................................... 1 B. Purpose of Project ................................................................................................... 1 C. Description of Existing Conditions .......................................................................... 2 1. Functional Classification .............................................................................. 2 2. Physical Description of Existing Facility ........................................................ 2 3. Horizontal and Vertical Alignment ................................................................ 2 4. Right of Way and Access Control ................................................................. 2 5. Speed Limit .................................................................................................. 2 6. Intersections and Interchanges .................................................................... 2 7. Railroads...................................................................................................... 3 8. Structures .................................................................................................... 3 9. Bicycle and Pedestrian Facilities and Greenways ........................................ 3 a. Bicycle Facilities ....................................................................................... 3 b. Pedestrian Facilities ................................................................................. 3 c. Greenways ............................................................................................... 3 10. Utilities ....................................................................................................... 5 11. School Buses ............................................................................................. 5 12. Airports ............................................................................................................... 5 13. Public Transportation ................................................................................. 5 14. Park and Ride Lots..................................................................................... 5 a. South Boulevard LYNX Blue Line Station ................................................ 5 b. Carolina Place Mall ................................................................................. 5 15. Intelligent Transportation Systems ............................................................. 6 16. Lighting ...................................................................................................... 6 17. Noise Abatement ....................................................................................... 6 D. Traffic Volumes and Traffic Carrying Capacity ................................................. 6 1. Existing and Future Traffic Volumes ............................................................. 6 2. Existing and Future Levels of Service .......................................................... 6 a. General Information ................................................................................. 6 b. Existing Levels of Service (2007) ............................................................. 6 c. Future Levels of Service (No Build Scenario) ........................................... 7 d. Future Levels of Service - Build Scenario (NCDOT-Preferred) ................. 7 E. Crash History ................................................................................................... 7 F. Transportation and Land Use Plans ................................................................. 8 1. NCDOT State Transportation Improvement Program ................................... 8 TABLE OF CONTENTS 2. NCDOT Strategic Highway Corridor ............................................................. 8 3. Department of Defense Strategic Highway Network ..................................... 8 4. Mecklenburg-Union MPO Long Range Transportation Plan ......................... 8 5. Charlotte Region Fast Lanes Study .............................................................. 9 6. Local Land Use Plans .................................................................................. 9 G. System Linkage ............................................................................................... 10 1. Existing Road Network ................................................................................. 10 a. Commuting Patterns ................................................................................ 10 b. Local Thoroughfare Plan .......................................................................... 10 2. Modal Interrelationships ..............................................................................