Caltrans, District 11 LAUREL STREET OVERCROSSING 1/16/2014.

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Presentation transcript:

Caltrans, District 11 LAUREL STREET OVERCROSSING 1/16/2014

Caltrans, District 11 Partnership This is a City of San Diego project on a City owned bridge The State is a partner in order to facilitate the engineering The Federal government is funding the majority of the construction cost The State has contributed close to $5 million

Caltrans, District 11 SUMMARY OF PROJECT Rehabilitate external surface concrete & power wash bridge Make it STRONGER 1.Retrofit the columns with more concrete and tensioned cables 2.Tie it horizontally with post tensioning and steel pins - to restrain the mid-span joints 3.Deck: Replace existing pavement, improve deck drainage Abutments: Rehabilitate all concrete, improve access for inspectors Install accent lighting

Caltrans, District 11 Rehabilitate the external column concrete

Caltrans, District 11 Scaffolding will be utilized in the rehabilitation

Caltrans, District 11 Rehabilitate the undersides especially the mid-span joint area on the arches

Caltrans, District 11 Deck work: January through April

Caltrans, District 11 Why Make the Bridge Stronger?

Caltrans, District 11 Make the Bridge Stronger Retrofit: Add 10 of thickness and tensioned east/west walls

Caltrans, District 11 Make the Bridge Stronger Install post tensioning, steel shear pins and new concrete to restrain the mid-span joints Joint Detail

Caltrans, District 11 Make the Bridge Stronger

Caltrans, District 11 Footings: To remain undisturbed Pier 4, existing view

Caltrans, District 11 Accent/Aesthetic Lighting Pier 4, Photo simulation of light standard in ground at night

Caltrans, District 11 Accent/Aesthetic Lighting

Caltrans, District 11 CONSTRUCTION SCHEDULE June 2014

Caltrans, District 11