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 2014

2

Caltrans, District 11

Why Make the Bridge Stronger?

Caltrans, District 11

Make the Bridge StrongerRetrofit: Add 10” of thickness and tensioned cables @ east/west walls

Caltrans, District 11

Make the Bridge StrongerInstall 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