Newmarket Viaduct ReplacementSTAGED VIADUCT CONSTRUCTION / DECONSTRUCTION PROCESS

PROJECT DELIVERY BY NGA NEWMARKET

Current situation

EXISTING NEWMARKET VIADUCT

Existing 3 lanes both directions

Stage one

EXISTING NEWMARKET VIADUCT

Existing 3 southbound lanes – width reduced

Existing southbound light poles and guard rail (LHS) removed

Temporary lighting added

Stage one

SOUTHBOUND TRAFFIC ON NEW SOUTHBOUND LANES

New 3 lanes southbound (3.1m widths) in use

Existing southbound lanes vacated

Construction for 4th lane tie-ins at north and south approaches

Stage two

DECONSTRUCTION OF EXISTING SOUTHBOUND LANES

New 4 lanes southbound (3.1m widths) in use

Stage three

CONSTRUCTION OF NEW NORTHBOUND LANES

Stage four

DECONSTRUCTION OF EXISTING NORTHBOUND LANES

Northbound traffic relocated to new structure

Widen all new lanes to final width

New 4 lanes southbound: 3.5m widths

New 3 lanes northbound: 3.1m widths

Final result

COMPLETED NEW NEWMARKET VIADUCT