Town of Bow June 7, 2019 Project Overview I-93 Typical Sections - - PowerPoint PPT Presentation

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Town of Bow June 7, 2019 Project Overview I-93 Typical Sections - - PowerPoint PPT Presentation

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Bow Concord I-93 Improvements T-A000(018) 13742 Town of Bow June 7, 2019 Project Overview I-93 Typical Sections Existing Interstate 93 Proposed Interstate 93 Project Goals Red List Bridges Pedestrian/Bicycle Accommodation

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Bow Concord I-93 Improvements T-A000(018) 13742

Town of Bow

June 7, 2019

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Project Overview

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I-93 Typical Sections

Existing Interstate 93 Proposed Interstate 93

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Project Goals

  • Red List Bridges
  • Address Geometric Issues
  • Address Operational Issues
  • Maintain Access
  • Pedestrian/Bicycle Accommodation
  • Provide Stormwater Treatment
  • Minimize Resource Impacts
  • Minimize Property Impacts
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Recommended Preferred Alternative

I-89 Area Concept K Exit 12 Area Concept F Exit 13 Area Concept B Exit 14/15 Area Concept F2

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I-89 / Exit 1 Area - Existing

Bow Junction

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WEAVING ISSUE WEAVING ISSUE RED LIST BRIDGE WEAVING ISSUE

I-89 / Exit 1 Area - Existing

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I-89 / Exit 1 Area - Proposed

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I-89 / Exit 1 Area - Proposed

Benefits:

  • Replaces Red List Bridge.
  • Eliminates 2 weaves between Exit 1 & I-93.
  • Improves weave at I-93/I-89 Interchange.
  • Provides Access to Route 3A from NB I-93.
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Bow Comments / Concerns

  • 1. NHDOT Modeling has inaccurate assumptions
  • 2. NHDOT Modeling failed to consider impact on

Business corridor

  • 3. The design ignores local impact
  • 4. Lack of Sound Barriers
  • 5. Photosimulations needed to evaluate impact
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  • 1a. NHDOT Modeling has inaccurate assumptions
  • Central NH Traffic Model and the Project Microsimulation

Traffic Model developed in 2014.

  • In 2017, Town of Bow approved zoning changes near

I-89 Exit 1.

  • Re-zoning allows for mixed use including multi-family

residential and commercial/retail.

  • Traffic Analysis conducted to

determine potential impact re-zoning would have on the Preferred Alternative.

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  • 1a. NHDOT

Modeling has inaccurate assumptions

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  • 1a. NHDOT Modeling has inaccurate assumptions
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  • 1a. NHDOT

Modeling has inaccurate assumptions

  • Preferred Alternative is valid

and achieves project goals.

  • South St/Logging Hill Road

would be re-evaluated during Final Design.

  • All Bridges over South

Street & Logging Hill Road would be constructed to accommodate future potential widening.

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  • 1b. NHDOT

Modeling has inaccurate assumptions

  • Concept K.
  • Retains Exit 1 access to

South Street and Logging Hill Road.

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  • 1b. NHDOT

Modeling has inaccurate assumptions

  • Concept K Modified.
  • Retains Exit 1 access to South

Street and Logging Hill Road.

  • Accommodates future

connection to undeveloped land adjacent to Logging Hill Road.

  • Additional property impacts,

including Historic Property.

Interim Configuration Future Configuration

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  • 2. NHDOT Modeling failed to Consider Impact on

Business Corridor

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Path A:

  • Least travel time
  • Uses South St & Logging Hill Road
  • Not Supported by Town
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Path B:

  • Uses State roads
  • Recommended Path to Route 3A
  • Signing to Support
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Concept K2:

  • Retains Access to Route 3A
  • Requires 3rd Level Flyover
  • 1,700’ Long Flyover Bridge
  • Additional $20-$25 M
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I-89 Area Concept K2

I-93 I-89 Turkey River Turkey River

Ramp

Flyover Profile

I-93 I-89

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  • 3. The Design

Ignores Local Impact

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NB Ramp Intersection SB Ramp Intersection

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  • 4. Lack of Sound Barriers
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  • 4. Lack of

Sound Barriers

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EA Table 4.22

  • 4. Lack of Sound Barriers

Note: To be considered effective, the barrier cannot exceed 1,500 SF per benefitted receptor.

Noise Barrier Barrier Barrier Barrier No. Barrier Area Effective? Sensitive Name Height Length Area (SF) Benefitted Per Benefitted (Reasonable) Area

  • Ave. (FT)

(FT) Receptors Receptor (SF) 1A 1B Grandview Road North 20 2,723 54,460 12 4,538 N 1B Logging Hill Road 16 713 11,408 2 5,704 N 1C Grandview Road South 20 4,972 99,440 12 8,287 N 1D Carriage Road North 25 1,962 49,050 6 8,175 N 1D Carriage Road South 25 4,758 118,950 7 16,993 N 1E NA 2A NA 2B NA 2C Basin Street Barrier 14 1,806 25,284 14 1,806 N 2D NA 2E Hall Street Barrier 14 2,997 41,958 9 4,662 N 2F 74 Basin Street Barrrier 16 1,012 16,192 1 16,192 N 2G West Terrill Park Barrier 16 980 15,680 6 2,613 N 2H Common Man Barrier 16 829 13,264 1 13,264 N 3A Uno's Outside Barrier 16 720 11,520 1 11,520 N 3B Kimball Jenkins Barrier 25 531 13,275 1 13,275 N 3C Higgins Place Barrier 25 480 12,000 4 3,000 N 3D NA 3E NA 3F NHTI Barrier 16' 16 1,610 25,760 50 515 Y 3F NHTI Barrier 25' 25 1,610 40,250 102+ 395 Y 3G Delta Dental Field Barrier 16 373 5,968 1 5,968 N

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SLIDE 27
  • 4. Photosimulations Needed to Evaluate Impact
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  • 4. Photosimulations Needed to Evaluate Impact
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Existing View from Grandview Road

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Rendered View from Grandview Road

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Examples of “aesthetic” treatments

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Schedule

  • Final Environmental Document – Summer 2019
  • Final Design / Right of Way Acquisition – 2019 to 2023
  • Construction – Begin 2024 with current funding
  • Completion – 2033 or sooner
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Questions

www.i93bowconcord.com