Downtown Lebanon Visioning Study and Tunnel Project

City of Lebanon, NHCSO Contract 11

Community ConversationMarch 23, 2015

Sacred Heart Church

Agenda

• Introductions• Conversation Goals• CSO Overview• General Project Overview• Small Group Sessions• Q&A

Conversation Goals

• Collect information from residentsSewer backupsLocalized flooding (street, yard, basements)Sidewalk locations (current vs. desired)Pavement widthsParking needs (existing vs. desired)Curbing (vertical vs. sloped)Tree/planting/landscaping concernsCurb cuts (existing vs. desired)

CSO Terminology

CSO = Combined Sewer Overflow

CB = Catch Basin

CD = Consent Decree

Combined Sewer = pipe w/ storm and sanitary flow

Purpose of sewer separation project is to provide separate sanitary pipe and separate storm drain pipe.

CSO Program Overview• September 1998 – Draft CSO Master Plan• 2000 – Administrative Order from EPA• December 2005 – CSO Engineering Study• April 2009 – CD Issued

Nov 2018 – Complete Contract 11 Sewer SeparationDec 2020 – Eliminate All CSOs

CSO Contract 11 Area (feet)• Mechanic Street (2,000)• Mascoma Street (840)• High Street (600)• Worthen Street (500)• Cameron Avenue (500)• Mason Street (520)• West Street (1,070)• Child Street (590)• Granite Street (1,015)• Young Street (1,300)• Guyer Street (1,160)• Bliss Street (370)• Light Street (600)

• Bank Street Extension (1,000)• Cooper Street (250)• Bank Street Near Bank Street Extension (200)

• Bank Street Near East Park Street (250)

March 23, 2015 Meeting Area• Mason Street (520)• West Street (1,070)• Child Street (590)• Granite Street (1,015)• Young Street (1,300)• Guyer Street (1,160)• Bliss Street (370)• Light Street (600)

General Project Overview

• New sanitary, storm, and water pipes• Maintain esplanade configuration• Maintain sidewalk configuration• Retaining walls may be needed• Add curbing and catch basins

vertical vs. sloped curb

• May modify vertical profile• Constant roadway width

Protection of Trees

• Walkabout with arborist will be conducted.

• Invites via mailing will be forthcoming.

• Contact City staff if you have a concern about a particular tree or planting.

Schedule• House-To-House Inspections – January 2015

• Virtual Walkabouts – March 2015*

• CCVT/Smoke Testing – March 2015

• Project Area Survey – April 2015

• Preliminary Design – July 2015*

• 75% Design – September 2015*

• Final Construction Documents – March 2016*

• Bid Period – April 2016

• Start Construction – June 2016• End Construction – December 2017

* Public Meeting

Project Contacts• Christina Hall, City Engineer

[email protected]

603.448.3112

• Mike Lavalla, Director of Public [email protected]

603.448.3112

• LebAlertalert.lebnh.net

• Ryan Wingard, Wright-Pierce Project [email protected]

603.430.3728

Small Group Sessions

Mason StreetYoung to Granite

Approx. ProposedComponent Existing For Discussion

Width 25’ 24’

Esplanade yes (north) yes (north)

Sidewalk yes (north) yes (north)

Drainage CBs Vert. Curb/CBs

West StreetYoung to Granite

Approx. ProposedComponent Existing For DiscussionWidth 22’-25’ 22’

Esplanade yes (north) yes (north)

Sidewalk yes (north) yes (north)

Drainage CBs Vert. Curb/CBs

West StreetGranite to High


Esplanade None None

Sidewalk None None

Drainage CBs Slope Curb/CBs

Child StreetYoung to Granite


Esplanade None None

Sidewalk None None


Granite StreetMason to Mascoma

Approx. ProposedComponent Existing For DiscussionWidth 20’ – 35’ 24’

Esplanade Yes (west) Yes (west)

Sidewalk Yes (west) Yes (west)Partial (east) None

Drainage CBs Curb/CBs

Young StreetHough to Worthen


Esplanade None None

Sidewalk Partial (west) NoneDrainage CBs Curb/CBs

Guyer StreetYoung to Granite


Esplanade Yes (north) Yes (north)

Sidewalk Yes (north) Yes (north)


Guyer StreetGranite to Mascoma


Esplanade None None

Sidewalk None None


Bliss Avenue/StreetYoung to Guyer


Width 12’-16’ 16’

Esplanade None None

Sidewalk None None


Light StreetGranite to High


Width 10’-18’ 12’

Esplanade none none

Sidewalk none none
