Derry-Londonderry I-93 Exit 4A Public Officials/Information Meeting

Transcription

1 Derry-Londonderry I-93 Exit 4A Public Officials/Information Meeting May 24, 2018

2 Purpose of Meeting To present the five build alternatives To present the evaluation matrix To answer questions and get input on the selection of Alternative A as the Preferred Alternative To present the Project Schedule

3 Project History 1985: Southern New Hampshire Planning Commission (SNHPC) -Study 1988: Application to Break I-93 Limited Access ROW 1991: FHWA Conditional Approval Accommodate 8 Lanes on I-93 FHWA - Review and Approval No Westerly Access National Environmental Policy Act (NEPA)must be followed 1996: Project on State 10-Year Transportation Plan

4 Project History (Continued) 1998: EIS Process Commenced 2007: Published DEIS and held Public Hearing 2011: The project was put on hold 2016: Towns approached NHDOT. Memorandum of Agreement signed. NHDOT given oversight authority of EIS process then NHDOT will take over the project through Final Design and Construction.

5 Project History (Continued) Through consultation with FHWA and to fulfill NEPA requirements, a Supplemental Draft EIS was scoped in 2017 to update environmental, cultural and socio-economic resources and impacts since the publication of the 2007 DEIS.

6 Project Purpose & Need Purpose 1of 2: To reduce congestion and improve safety along NH 102 from I-93 easterly through downtown Derry. Needs: Traffic is diverting to local road network to avoid NH 102 backups Several Exit 4-area intersections projected to operate or near capacity in 2040, as well as the Exit 4 southbound off-ramp (Ignore congestion at Exit 4 on the graphic as the interchange is under construction) Exit 4 Traffic Conditions Green = Orange = Red = Free Flow Traffic Slow Moving Traffic Stop/Go Traffic Wednesday, January 24, 2018 AM

7 Project Purpose & Need Purpose 2 of 2: To promote economic vitality in the Derry/Londonderry area. Needs: Heavy through-traffic in downtown Derry inhibits pedestrian appeal and business access Inadequate interstate access to the east of I-93 for commercial and industrially zoned lands in both Derry and Londonderry

8 National Environmental Policy Act (NEPA) NEPA requires a Supplemental EIS when changes in the proposed action or new circumstances would result in significant environmental impacts not evaluated in the previous EIS Changes and new information to be addressed include: Changes in the design of the alternatives Changes in the existing environment Changes in environmental regulations Public review and distribution requirements for a Supplemental EIS are the same as a regular EIS, except that scoping is not required.

9 Current Project Status In the process of completing the Supplemental Draft Environmental Impact Statement (SDEIS) Five Build Alternatives have been reassessed based on updated information (existing base mapping, 2040 traffic projections, anticipated 2040 land development, socio-economic conditions, full 8 lane buildout of I-93 etc.) Alternative evaluation matrix has been updated Based on the technical studies completed to date, no new information or circumstances that would warrant reconsideration of the Preferred Alternative have been identified

10 Alternatives Overview

11 Alternative A 5.30 Miles Construction Costs = $37,100,000 Transmission Line Relocation Costs= $850,000

12 Alternative B 5.59 Miles Construction Costs = $37,800,000 Transmission Line Relocation Costs = $3,530,000

13 Alternative C 6.25 Miles Construction Costs = $34,700,000 Transmission Line Relocation Costs = $7,560,000

14 Alternative D 5.64 Miles Construction Costs = $33,800,000 Transmission Line Relocation Costs = $4,930,000

15 Alternative F 2.44 Miles Construction Costs = $4,300,000 Transmission Line Relocation Costs = $0

16 I-93 Exit 4A Draft Alternatives Comparison Matrix May 22, 2018 Resource Impact Calculation Alternative A B C D F Purpose and Need Change in 2040 traffic through downtown Derry (NH 102) compared to 2040 No Build Conditions: NH 102 East of Griffin St. Incremental increase in employment in Derry and Londonderry -19% -24% -22% -8% +18% Derry: 346 Londonderry: 4,335 Derry: 346 Londonderry: 4,335 Derry: 0 Londonderry: 0 Derry: 0 Londonderry: 0 Derry: 0 Londonderry: 0 Length of roadway General Additional lane miles Construction Costs $37,100,000 $37,800,000 $34,700,000 $33,800,000 $4,300,000 Transmission Line Relocation Costs $850,000 $3,530,000 $7,560,000 $4,930,000 $0 Potential residential total acquisitions (number) Socioeconomic Conditions 2 Potential business displacements (number) Potential commercial total acquisitions (number) Total area of ROW taking (acres) Soils Total area of disturbance (acres) Contaminated Properties and Hazardous Materials Known hazardous sites (number) within ASTM search radii Potential hazardous sites (number) within ASTM search radii New stream crossings (number) Surface Waters and Water Quality Existing stream crossings (number) Linear feet stream impacts 1,246 1, Square feet stream impacts 9,658 20,524 16,202 16,171 2,060 Lane-miles for chloride loading Notes: 1. Additional lane miles have not been used for chloride application purposes. 2. The value of the residential relocations and business displacements will be evaluated.

17 I-93 Exit 4A Draft Alternatives Comparison Matrix May 22, 2018 Resource Impact Calculation Alternative A B C D F Non-prime Non-vernal pool Wetlands (acres) Wetlands Prime wetlands (acres) Vernal pools (acres) Wetlands total (acres) Vernal pools (number) Aquifers, surface area of impacts, sq ft/day (acres) Aquifers, surface area of impacts, sq ft/day (acres) Groundwater Public wellhead protection areas (number) Wellhead protection areas (new impervious, acres) Private wells (number) Private wells (number within 150 ft) Floodplains Floodway (acres) year floodplain (acres) year floodplain (acres) Plant Communities and Wildlife WAP supporting landscapes (acres) WAP highest ranked wildlife habitat in biological region (acres) Threatened and Endangered Species State-listed rare plant and animal occurrences (number) Cultural Resources 3 Pending Section 106 Consultation Process Parks, Recreation, and Conservation Lands Parks and Conservation Lands (name, area) Rider Field (0.05 acre) Rider Field (0.96 acre) Trails and Bicycle Paths (name) Derry Rail Trail (Planned) Notes: 3. Eligible or potentially eligible historic resources will be evaluated in more detail, and those resources anticipated to experience "adverse effects" will be determined through additional analysis and coordination with NHDHR. Derry Rail Trail (Planned) Rockingham Road Conservation Site (0.035 acre) Dumont Conservation Site (0.048 acre) Rider Field (0.96 acre) Londonderry Rail Trail (Paved) Londonderry Rail Trail (Unpaved) Rockingham Road Conservation Site (0.035 acre) Dumont Conservation Site (0.048 acre) Rider Field (0.05 acre) Londonderry Rail Trail (Paved) Londonderry Rail Trail (Unpaved) Hoodcroft Golf Course (0.180 acre) Rail Trail / Path (On-Road Bicycle Route)

18 Why Alternative A Identified as Preferred? Alternatives C, D & F do not meet the traffic & economic development purpose Alternatives A & B have similar results and best meet the purpose of reducing traffic in the downtown area Compared to Alternative B, Alternative A has less impact on natural resources, less ROW impacts (less residential and overall acres of acquisition, but more business impacts) and less transmission line relocation costs

19 Section 106 Consulting Parties Section 106 of the National Historic Preservation Act requires federal agencies to consider effects on historic properties. Consulting parties in the Section 106 process may include the State Historic Preservation Officer, Tribes, local governments, local historic preservation groups, local property owners, and others with a demonstrated interest in the project. Consulting parties actively participate in an advisory capacity, in the Section 106 review process. Contact Marc Laurin (Marc.Laurin@dot.nh.gov) or Jamie Sikora (jamie.sikora@dot.gov) if you are interested in potentially being a consulting party for this project.

20 Project Schedule Public Information Meeting (Alternative A): July 2018 Supplemental Draft EIS: Published in early September 2018 Public Hearing: Mid-September 2018 Notice of Availability for Final EIS/Record of Decision: Early March 2019 Final Design, Permitting, & ROW Acquisition: By NHDOT Construction: By NHDOT (expected to begin in late 2019 or 2020)

21 TO GIVE FEEDBACK PLEASE VISIT: i93exit4a.com

22 Questions?