BeckerFraserPhotos July 2011 photograph 716

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary".

BeckerFraserPhotos July 2011 photograph 707

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary".

BeckerFraserPhotos July 2011 photograph 706

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary".

BeckerFraserPhotos July 2011 photograph 705

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary".

BeckerFraserPhotos July 2011 photograph 718

Images, UC QuakeStudies

A photograph of the Heathcote Estuary near the McCormacks Bay causeway.

BeckerFraserPhotos July 2011 photograph 448

Images, UC QuakeStudies

A photograph of the Heathcote River.

BeckerFraserPhotos July 2011 photograph 668

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary photographed from Mt Pleasant".

BeckerFraserPhotos July 2011 photograph 674

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary photographed from Mt Pleasant".

BeckerFraserPhotos July 2011 photograph 670

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary photographed from Mt Pleasant".

BeckerFraserPhotos July 2011 photograph 679

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "A view of the Heathcote Estuary and settling ponds".

BeckerFraserPhotos July 2011 photograph 673

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary and settling ponds photographed from Mt Pleasant".

BeckerFraserPhotos July 2011 photograph 677

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary and settling ponds photographed from Mt Pleasant Road".

BeckerFraserPhotos July 2011 photograph 680

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary and settling ponds photographed from Mt Pleasant Road".

BeckerFraserPhotos July 2011 photograph 671

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary and settling ponds photographed from Mt Pleasant".

BeckerFraserPhotos July 2011 photograph 678

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The Heathcote Estuary and settling ponds photographed from Mt Pleasant Road".

BeckerFraserPhotos July 2011 photograph 447

Images, UC QuakeStudies

A photograph of a woman standing on a footbridge over the Heathcote River.

BeckerFraserPhotos July 2011 photograph 715

Images, UC QuakeStudies

A photograph of cars on the McCormacks Bay causeway.

BeckerFraserPhotos July 2011 photograph 721

Images, UC QuakeStudies

A photograph of road works on Augusta Street in Redcliffs.

BeckerFraserPhotos July 2011 photograph 712

Images, UC QuakeStudies

A photograph of road cones on McCormacks Bay Road.

BeckerFraserPhotos July 2011 photograph 713

Images, UC QuakeStudies

A photograph of cars on the McCormacks Bay causeway.

BeckerFraserPhotos July 2011 photograph 717

Images, UC QuakeStudies

A photograph of a cyclist and car on the McCormacks Bay causeway.

BeckerFraserPhotos July 2011 photograph 708

Images, UC QuakeStudies

A photograph of the Waters Edge Apartments, seen across the estuary.

BeckerFraserPhotos July 2011 photograph 710

Images, UC QuakeStudies

A photograph of the undulating surface of Main Road in Mt Pleasant.

BeckerFraserPhotos July 2011 photograph 711

Images, UC QuakeStudies

A photograph of the undulating surface of Main Road in Mt Pleasant.

BeckerFraserPhotos July 2011 photograph 714

Images, UC QuakeStudies

A photograph of cars on the McCormacks Bay causeway.

BeckerFraserPhotos September 2011 photograph 096

Images, UC QuakeStudies

Photograph captioned by BeckerFraserPhotos, "Sand volcanoes in the Heathcote Estuary".

BeckerFraserPhotos September 2011 photograph 112

Images, UC QuakeStudies

Photograph captioned by BeckerFraserPhotos, "Families enjoying the sun by the Heathcote River in Cashmere Road".

Performance of Bridges during the 2010 Darfield and 2011 Christchurch Eart…

Research papers, The University of Auckland Library

The region in and around Christchurch, encompassing Christchurch city and the Selwyn and Waimakariri districts, contains more than 800 road, rail, and pedestrian bridges. Most of these bridges are reinforced concrete, symmetric, and have small to moderate spans (15–25 m). The 22 February 2011 moment magnitude (Mw) 6.2 Christchurch earthquake induced high levels of localized ground shaking (Bradley and Cubrinovski 2011, page 853 of this issue; Guidotti et al. 2011, page 767 of this issue; Smyrou et al. 2011, page 882 of this issue), with damage to bridges mainly confined to the central and eastern parts of Christchurch. Liquefaction was evident over much of this part of the city, with lateral spreading affecting bridges spanning both the Avon and Heathcote rivers.