I-405 Sepulveda Pass Improvements Project pp j Quarterly...

I-405 Sepulveda Pass Improvements ProjectClick to edit Master title style

p p jQuarterly Community Meeting November 17, 2011

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Wilshire Segment

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Quarterly Community Meetings 2012Click to edit Master title styleQuarterly Community Meetings 2012


Month Meeting(s)February 16 Quarterly

May 17 Quarterly


May 17 Quarterly

August 16 Quarterly

November 15 Quarterly» Fifth level

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Wilshire SegmentClick to edit Master title style

W s e Seg e t

Columns rise south of Wilshire/Sepulveda intersection to support Bridge 7• Click to edit Master text styles

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Columns rise south of Wilshire/Sepulveda intersection to support Bridge 7


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W s e Seg e t



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Columns for northbound off‐ramp cure


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Construction north of Wilshire/Sepulveda intersection• Click to edit Master text styles

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Construction north of Wilshire/Sepulveda intersection


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Construction north of Wilshire/Sepulveda intersection• Click to edit Master text styles

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Construction north of Wilshire/Sepulveda intersection


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Ab f B id 7• Click to edit Master text styles

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Abutment for Bridge 7, northbound off‐ramp to east Wilshire


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Wilshire SegmentClick to edit Master title styleWilshire Segment

R l i ili i Wil hi d S l d 18 f• Click to edit Master text styles

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Relocating utilities at Wilshire and Sepulveda; some are 18 feet below street level


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Wilshire SegmentClick to edit Master title styleExtended Ramp Closures

Maximum


Ramp Tentative DateMaximum

Duration (Days)

WB Wilshire on-ramp to NB I-405 1st Quarter 2012 90

NB I 405 ff WB Wil hi 1 t Q 2012 90• Third level

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NB I-405 off-ramp to WB Wilshire 1st Quarter 2012 90

WB Wilshire on-ramp to SB I-405 TBD 14

EB Wilshire on-ramp to SB I-405 TBD 14» Fifth levelSB I-405 off-ramp to WB Wilshire TBD 14

SB I-405 to EB Wilshire TBD 90

0 ff l hNB I-405 off-ramp to EB Wilshire TBD 21

EB Wilshire on-ramp to NB I-405 TBD 90

SB I-405 off-ramp to Santa Monica TBD 14

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NB I-405 on-ramp from Santa Monica TBD 7

SB I-405 on-ramp from Santa Monica TBD 7

Wilshire SegmentClick to edit Master title styleNB I-405 to WB Wilshire Off-Ramp



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Wilshire SegmentClick to edit Master title styleWB Wilshire to NB I-405 On-Ramp



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Wilshire SegmentE t d d R Cl O t h PlClick to edit Master title styleExtended Ramp Closure Outreach Plan

U i L L d f M lh ll d D liti• Click to edit Master text styles

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Using Lessons Learned from Mulholland Demolition• Launching public campaign early

• Plan aheadA id h l k li h


• Avoid the area unless you work or live there• Traffic study underway with DOT concerning Sepulveda utility work impacts• We understand capacity on Sepulveda needs to be optimized

» Fifth level• Eblast to 6,000 agencies and business groups

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Wilshire SegmentE t d d R Cl O t h Pl (C td )Click to edit Master title styleExtended Ramp Closure Outreach Plan (Contd.)

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• Public service announcements in print, online, video media

• Media Relations Outreach

• Detour maps updates via Metro net I-405 website


Detour maps, updates via Metro.net, I 405 website

• Changeable message signs, static signs and traffic control officers

• Repeated alerts via I-405 social media sites» Fifth level• Community Meeting (date TBD)

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Wilshire SegmentClick to edit Master title styleExtended Ramp Closure Activities

Work required before 90-day closure:


Wo equ ed be o e 90 day c osu e:• Adjacent retaining walls• Structural excavation• Install shoring


Install shoring• Drive steel pilesWork required during 90-day closure:• Demolition of steel railing top deck and bridge structure*» Fifth level• Demolition of steel railing, top deck and bridge structure*• Drive steel piles• Form, pour and strip wingwalls, footings, abutments, diaphragms,

approach slabs top deckapproach slabs, top deck• Erect girders*• Install overhang falsework, top deck, concrete barrier*

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* Requires full closure of Sepulveda (Wilshire to Montana); local access will be maintained; nighttime closure from 9pm to 6am

Wilshire SegmentClick to edit Master title styleExtended Ramp Closure Demolition


• 3-4 nights to demolish WB Wilshire to NB I-405 on-ramp and NB I-405 off-ramp to WB Wilshire

• Will occur on nights 2 and 3 of 90 day closure• Third level

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• Will occur on nights 2 and 3 of 90-day closure

• Requires full closure of Sepulveda, from Wilshire to Montana

• Requires full closure of WB Wilshire, from Veteran to Federal» Fifth level

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• Demolition occurs at night only, 9pm to 6am.

• Sepulveda detours during demolition:

• Eastbound: Barrington, Sunset, Veteran, Montana

• Westbound: Veteran to Montana

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Wil hi S tClick to edit Master title styleWilshire Segment



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• Click to edit Master text styles– Second levelSunset Segment


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Sunset Segment – Utility WorkClick to edit Master title styleSunset Segment Utility Work

Wall 1702 – south of Montana to Constitution


Wa 70 sout o o ta a to Co st tut o• Verizon

• Sewer line


Montana Undercrossing• Storm drain

Chevron » Fifth level• Chevron

Utility excavation is shown here

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Walls 1720/1730• Click to edit Master text styles

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Walls 1720/1730

Sections of 16 inch diameter Exxon Mobil petroleum

• Water main

• Sewer line and manholes


Sections of 16-inch- diameter Exxon Mobil petroleum pipe wait for installation along Sepulveda Bl.

• Sewer line and manholes

• Storm drains

• So Cal Gas» Fifth level

So Cal Gas

• Verizon Telecom

• Exxon Mobil

• LADWP Power

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Wall 1738 A/B/C–Sunset NB Ramps• Click to edit Master text styles

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Wall 1738 A/B/C Sunset NB Ramps • Storm drain/catch basin

• Sewer line (Jack & Bore)


Sunset Bridge• LADWP Water/manhole

& » Fifth level• Verizon/AT&T

• LADWP Power

Utility relocation will extend the lifespan of underground utilities, making them safer.

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Sunset Segment--Utility RelocationClick to edit Master title styleTypical Infrastructure Beneath Sepulveda Bl



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Illustration of utility sizes, their spatial relationship to one another and their depth below Sepulveda Bl.


Wall 1746/Church Ln Undercrossing• Click to edit Master text styles

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Wall 1746/Church Ln Undercrossing • Water line

• Exxon Mobil


• LADWP-Power

• Sewer line» Fifth level

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Wall 1766 – Moraga Dr• Click to edit Master text styles

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Wall 1766 Moraga Dr• Verizon wireless

• LADWP-Power


• Storm drain

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Sunset Segment – Bridge WideningClick to edit Master title styleSunset Segment – Bridge Widening

Montana Undercrossing Widening Typifies Bridge Work (Before)


o ta a U de c oss g W de g yp es dge Wo ( e o e)


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Illustration not to scale.

Sunset Segment – Bridge WideningClick to edit Master title styleSunset Segment – Bridge Widening

Montana Undercrossing Widening Typifies Bridge Work (After)


o ta a U de c oss g W de g yp es dge Wo ( te )


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Illustration not to scale.

Sunset Segment – Bridge WideningClick to edit Master title styleSunset Segment Bridge Widening

In advance of bridge or freeway widening, utilities must be


g y gmoved out of the way first.


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Getty Center Drive• Click to edit Master text styles

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Getty Center Drive • Power relocation

Sepulveda Undercrossing Getty Ramps• Third level

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Sepulveda Undercrossing – Getty Ramps • Verizon telecom

• LADWP-Power» Fifth level

LADWP Power

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l k d l lSunset Segment

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» Fifth le elRetaining walls leave less space underneath them than» Fifth level » Fifth levelspace underneath them than would first appear.

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l k d l lCompleted Sunset Bridge

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• Click to edit Master text styles– Second levelMulholland Segment


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Mulholland Segment(S l d t V t )Click to edit Master title style(Sepulveda to Ventura)

Key Upcoming Activities• Click to edit Master text styles

– Second level• Utility relocations on the Skirball Bridge and Sepulveda

• Freeway overpass/bridge widening at Bel Air Crest

Key Upcoming Activities


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• Mulholland Bridge reconstruction

• Valley Vista early prep work

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d b kWest side abutment takes shape at Mulholland Bridge.

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Bridge Widening At Bel Air CrestClick to edit Master title styleBridge Widening At Bel Air Crest

• Click to edit Master text styles– Second levelRetaining wall


Fwy Widening

Bridge Widening

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Bridge Widening At Bel Air CrestClick to edit Master title styleBridge Widening At Bel Air Crest

Bel Air Crest undercrossing


glooking northwest


Pile drilling on north side of Bel Air Crest; only small drill can be used this close to

» Fifth levelcan be used this close to freeway.

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Relocated Southbound Skirball RampsClick to edit Master title styleRelocated Southbound Skirball Ramps



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Retaining Wall

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Valley Vista Sound/Retaining Wall Construction Click to edit Master title styleZone Layout

Yellow: Work/Yard areasRed: Structures to be demolished

• Click to edit Master text styles– Second levelSh O k A

Red: Structures to be demolishedBlue: Retaining wall with sound wallGreen: Existing sound wall to remain during constructionOrange: Existing sound wall to be demolishedPurple: New sound wallPink: New retaining wallBl k C t ti f d t


Sherman Oaks Ave. Black: Construction fence and gatesMaroon: Truck haul routes

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Mulholland SegmentClick to edit Master title styleMulholland Bridge Reconstruction—Ongoing Work

Mulholland Segment


• Pile driving of bridge abutment

• Bridge column footing construction

Mulholland Bridge Reconstruction—Ongoing Work


Bridge column footing construction

• Freeway roadway widening

» Fifth levelUnder Mulholland Bridge looking southwestsouthwest

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Mulholland SegmentClick to edit Master title styleMulholland Bridge Reconstruction—Upcoming Work

Mulholland Segment


• Construction work zone development at freeway median

• Temporary lane widening on the Mulholland Bridge

Mulholland Bridge Reconstruction—Upcoming Work


• Utility work

» Fifth levelExcavation at west side of Mulholland Bridge

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Mulholland SegmentClick to edit Master title styleMulholland Bridge Reconstruction—Continuing Work

Mulholland Segment


Mulholland Bridge Reconstruction—Continuing Work


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Bridge supports rise on both

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Bridge supports rise on both sides of Mulholland Bridge

Mulholland Bridge ReconstructionClick to edit Master title styleMulholland Bridge Reconstruction

Completed Mulholland Bridge



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Social Media OutreachClick to edit Master title styleSocial Media Outreach

• This week Community Relations


Link to LADOT street conditions• This week Community Relations

sent its 12,000th Twitter posting.

• Last month 54,721 visitors viewed the project website


viewed the project website.

• Twitter has 3,380 followers.

• Our Facebook page currently has 5 881 lik d 3 359 f ll» Fifth level

• Nixle has 278 followers.

5,881 likes and 3,359 followers.

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Click to edit Master title styleFor More Information


Project Hotline: (213) 922-3665

[email protected]

www.metro.net/405


/

www.facebook.com/405project

Twitter: http://twitter.com/I_405

Nixle: nixle com» Fifth levelNixle: nixle.com

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I-405 Sepulveda Pass Improvements Project pp j Quarterly...

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