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Los Angeles Times Special Quake Report: One Year Later : Roads

Research by NONA YATES / Los Angeles Times

Total estimated damage: $250 million

MAJOR RECONSTRUCTION PROJECTS:

* I-5 and Highway 14: Rebuild interchange Phase 1: Total cost: $23.1 million Early completion bonus: $3.5 million Date of reopening: July 8

Phase 2: Total cost: $13.2 million Early completion bonus: none Open: November 4

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* Gavin Canyon Bridges I-5: Rebuild Total Cost: $19.75 million Early completion bonus: $4.95 million

Date of reopening: South: May 17; North: May 18

* Highway 118: Rebuild East Total Cost: $10.15 million Early completion bonus: $450,000 Open: Sept. 7

West Total Cost: $9.6 million Early completion bonus: none Open: September 3

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* I-10 Freeway: Rebuild bridges at Fairfax/Washington and La Cienega/Venice Total Cost: $28.7 million Early completion bonus: $13.8 million Open: April 11

Bridges

Total Bridges Damaged, Los Angeles and Ventura Counties: 200

Damage over $100,000 (including seven collapsed spans): 55

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Damage $3,000 to 100,000: 121

Damage under $3,000: 24

Retrofitting

* Bridges needing retrofitting (identified prior to the Northridge quake)

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Total, Statewide: 1039

Total, Los Angeles County: 336

Completed: 141

Under Construction: 193

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Design or review stage: 2

* Bridges needing retrofitting (identified after the Northridge quake)

Total, Statewide: 1330

Total, Los Angeles County: 308

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Completed: 9

Under Construction: 3

Design or review stage: 296

Commuting

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* Commute times: Average round-trip increased 23%.

* Santa Monica (I-10) Freeway: Traffic volume on the damaged section dropped from a prequake daily average of 310,000 vehicles to an average of 120,000 to 140,000 on the primary detour during reconstruction.

* Golden State (I-5) Freeway: Weekday traffic volumes decreased from approximately 136,000 vehicles to 85,000 to 95,000 vehicles during reconstruction.

* Metrolink commuter train: Ridership increased from 9,026 the Friday preceding the quake to a record high of 31,276 on January 25, 1994.

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* Santa Clarita Line: the daily ridership rose from 1,439 in Dec. 1993, to 21,952 riders on January 25, 1994.

* Bus ridership: Plummeted on the day of the quake to 400,000 boardings, compared to 1.1 million ten days prior to the quake, but then rose to 1.2 million boardings ten days after the quake.

Source: Los Angeles Unified School District; Caltrans; MTA; Commuter Transportation Services, Inc.


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