Below is a breakdown of the project's main Construction Stages. Dates affixed to each Stage are projections and may be revised as work progresses.
Stage 1 – January 2009 to End of Summer 2009
Traffic Pattern: Turnpike traffic will be maintained on the existing northbound and southbound lanes
Construction Activities
- Site clearing and installation of Erosion and Sedimentation controls.
- Establish Access Roads from Route 248.
- Install temporary rock Causeways in Pohopoco Creek and Lehigh River.
- Temporarily widen northbound Turnpike at both the south end and north end of the work zone.
- Begin rock wall stabilization (Soil Nailing) adjacent to southbound Turnpike south of the Lehigh Bridge progressing toward Lehigh Tunnel.
- Begin Pohopoco Bridges foundations and substructures.
- Begin Lehigh Bridges foundations and substructures.
- Install culvert other drainage structures along abandoned RR bed.
Stage 2 – Fall 2009 to End of Year 2010
Traffic Pattern: Northbound Turnpike traffic shifted to widened northbound lanes, SB traffic remains on existing lanes
Construction Activities
- Complete foundation and substructure construction at Pohopoco Creek bridges.
- Set deck beams and construct deck for Pohopoco bridges.
- Complete foundation and substructure construction at Lehigh Bridges.
- Continue rock wall excavation adjacent to southbound Turnpike south of the Lehigh River Bridge.
- Continue retaining wall construction adjacent to southbound Turnpike at north end of project (right photo).
Stage 2 - Early 2011 to Early Summer 2011
Traffic Pattern: Northbound, Southbound traffic remain on existing lanes
Construction Activities
- Complete construction of Pohopoco Bridges.
- Complete construction of southbound Lehigh Bridge.
- Continue construction of northbound Lehigh Bridge.
- Complete rock wall excavation south of the Lehigh Bridge.
- Construct southbound approach pavement/realignment.
Stage 3 – Mid-Summer 2011 to End of Year 2011
Traffic Pattern: Maintain northbound Turnpike traffic on widened northbound lanes.
Traffic Pattern: Shift southbound traffic to new southbound bridges.
Construction Activities
- Complete southbound approach pavement/realignment.
- Complete deck placement on northbound Lehigh River Bridge.
- Construct northbound approach pavement/ralignment.
Stage 4 – January 2012 to November 2012
All Turnpike traffic on new bridges
Construction Activities
- Construct Hiking Trail.
- Construct Wetland Mitigation site.
- Construct causeways for bridge demolition.
- Demolish existing Pohopoco and Lehigh Bridges.
- Remove Temporary pavement & grade for future widening.