Littleton 42376

Public Informational Meeting

Bridge Preservation of Bridge 187/065

US Route 302 & NH Route 10 Over I-93 NB & SB

May 20, 2019

Introductions

• Joe Adams, PE

– NHDOT Bureau of Bridge Design

• Michael Mozer, PE

– NHDOT Bureau of Bridge Design

• Joe Johnson, PE, PTOE

– Greenman-Pedersen, Inc.

• Project Consultant

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

Littleton - 42376

Project

Location

I-93

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

Rt 302/Rt 10

Meadow St

Walmart

Shaws

Project Purpose

• Bridge Preservation

– Extends the useful life of the bridge

– Improves ride quality over the bridge

– Replace pavement and membrane

– Replace transverse joints

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

Project Need

• Leaking Expansion Joints

• Cracked Pavement and Joints

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

Project Scope

– Replace bridge expansion joints

– Replace pavement and membrane

– Partial and full depth concrete deck repairs

– Remove granite curbs and replace with

concrete

– Paint steel girders under expansion joints

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

Littleton - 42376Phase 1 - Bridge Cross Section

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

12’ 12’

Littleton - 42376

Typical Work Zone

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

Littleton - 42376Phase 2 - Bridge Cross Section

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

12’ 12’

Littleton - 42376

Typical Work Zone

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

Littleton - 42376

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

Littleton - 42376

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

Traffic Mitigation Efforts

• Advanced signing and message boards

• Traffic Signal Modifications at Exit 42

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

Anticipated Project Schedule

• Advertise for bids – Fall 2019

• Phase 1 Construction

– April 2020 to June 2020

• Phase 2 Construction

– July 2020 to September 2020

• Completion – Fall 2020

– Final paving and striping

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93

Littleton - 42376

Thank You

Questions?

Bridge Preservation of Bridge 187/065 US Route 302 & NH Route 10 Over I-93