CARMEGEDDONAn Extraordinary SuccessDan Kulka

A story about• Demolition• Public Outreach• Interagency Cooperation

Lessons learned• Full Freeway Closures • The Design Build Process • Mega Projects

Mulholland Bridge Demo

I-405 Project Scope• 10 Miles Hov Lane• Rebuild 3 bridges• Rebuild 28 ramps• Build18 miles of retaining walls

• I-405 Project Scope• 10 Miles Hov Lane• Rebuild 3 bridges• Rebuild 28 ramps• Build18 miles of retaining walls

Megiddo, Israel

• Demolition– Penhall

• Traffic Control– HNTB, LADOT, Caltrans, Statewide

• Public Outreach– Metro

• Emergency Services– LAPD Unified Command

Planning Task Forces

Transportation Management Plan

Possible Detour: Sepulveda Boulevard

Sepulveda Boulevard from National off ramp to Greenleaf on ramp: 10.7 miles

Sepulveda Boulevard at Tunnel1 NB lane, 2 SB lanes

Regional Detour map

Traffic Management Plan

• Close the freeway from I-10 to US 101 (NB) and US-101 to Getty Center Drive (SB)

• Close all connectors feeding into Route 405 in the project area

• Close all on and off ramps in the closed freeway sections

• Detour freeway traffic using freeways (not through Sepulveda Blvd)

• Limit Sepulveda Boulevard traffic to local access only

Regional Alternates

Transportation Management Plan Goal:

Divert at least 50% of the volume to minimize the queue on 405 freeway

Public Outreach

Changeable Message Signs• 3 weekends in June and July 1-15• 40 signs from San Diego to Oregon

border on I-5, SR-99, US-101and on I-10, I-210 and SR-60

• 64 signs in LA and Ventura Counties

Motorist Information

Portable Changeable Message Signs• 46 on freeway network• 35 on city streets• Caltrans Highway Information Network

Local 511 phone and website broadcast the event starting early June

• GPS linked services announcement

Alternate Route CMS/PCMS Deployment

Celebrity Tweets

• Northbound 405 at Culver dropped 64%

• Southbound 405 dropped 56%

• US 101 near I-405 dropped 40%

• I-10 near I-405 dropped 25%

• LA County dropped 44%

Freeway was opened 17 hours ahead of schedule

Traffic by the Numbers

Are extended full freeway closures better?

Setting Girders at Skriball Bridge

As Built

Freeway closed in one direction for five nights from midnight to 5 am.

Proposed Alternative

Full freeway closure for 12 hours from Friday 10 pm to Saturday 10 am.

Design-Build Promotes Cooperation

• Design-Bid-Build– Completed Transportation Management Plan in the contract

• Design-Build– Transportation Management Plan data sheet in contract – Final Plan is designed to meet specific needs

Mega Projects bring Mega Resources

• Engineering and Planning• Equipment• Materials• Political Momentum• Subcontractors

A story about• Demolition• Public Outreach• Interagency Cooperation

Lessons learned• Full Freeway Closures • The Design Build Process • Mega Projects

Mulholland Bridge Demo

CARMEGEDDONAn Extraordinary SuccessDan Kulka