Source: Metro. http://www.metro.net/projects_studies/I405/images/community_meeting_2013_0228.pdf

1. I-405 Sepulveda Pass Improvements Project
Community Meeting February 28, 2013
1

2. Project Highlights to Date
2

3. 2013 Milestones
Key Milestones
• 100% Utilities
• 100% Bridges (Mulholland, Skirball, Sunset)
• 100% Wilshire ramps
• 90% of on and off-ramps
• 83% of retaining and soundwalls
• 90% of underpasses and structures
Other Key benefits/deliverables
• Sepulveda Boulevard fully functional during peak traffic hours
• 2.5-mile construction of future HOV lane between I-10 and Wilshire
• Getty Center gate and road improvements
• I-405/10 Connectors
3

4. Wilshire Segment
4

5. Wilshire Segment—Extended Closures
Maximum Duration
Ramp Tentative Date (Days)
WB Wilshire on-ramp to NB I-405 Complete 90
NB I-405 off-ramp to WB Wilshire Complete 90
NB I-405 on-ramp at Olympic (Cotner) February 8- March 9 21
SB I-405 off-ramp to WB Wilshire March 8, 2013 14
NB I-405 off-ramp to EB Wilshire Summer 2013 21
EB Wilshire on-ramp to NB I-405 Fall 2013 90
SB I-405 off-ramp to Santa Monica TBD 14
NB I-405 on-ramp from Santa Monica TBD 7
SB I-405 to EB Wilshire TBD 90
WB Wilshire on-ramp to SB I-405 TBD 14
SB I-405 on-ramp from Santa Monica TBD 7
5

6. Wilshire Segment--14 Day Ramp Closure
Southbound I-405 to westbound Wilshire, Friday, March 8−22
• K-rail shift, paving, and traffic shift to new on-ramp
• Off-ramp alignment will be reconfigured
• Detour maps available online
• Detour 1: Exit 405 at SB Sunset, left or right on Church Ln to
Sepulveda
• Detour 2: Exit 405 at SB Santa Monica, left on Santa Monica
to Sepulveda
March 8−22 6

7. Wilshire Segment--14 Day Ramp Closure
Outreach and Mitigations
• Construction Notice sent two weeks in advance
• Media Relations press release
• Changeable Message Signs (CMS) placed along route two
weeks in advance
• Traffic Control Officers (TCO) will be placed along detour
route
• Six intersections with strike team
Six intersections with strike team
7

8. Wilshire Segment-14 Day Ramp Closure
8

9. Wilshire Segment—Bridge Overview
• Completed:
• WB Wilshire to NB I-405 on-ramp
• NB I-405 to WB Wilshire off-ramp
• Near completion (at least 80 percent):
• I-10 connector at Exposition Bl
• Olympic Bl
• Santa Monica Bl
• Ohio Av
• Wilshire Bl undercrossing
• Constitution Av
9

10. Wilshire Segment—Bridge Overview
Completion in 2013
• Pico Bl
• SB I-405 to EB Wilshire off-ramp
• NB I-405 to EB Wilshire off-ramp Southbound Off-Ramp to
• EB Wilshire to NB I-405 on-ramp Eastbound Wilshire
expected to be completed
this year.
10

11. Wilshire Segment—Bridge Overview
Future Southbound Off-Ramp to Eastbound Wilshire
11

12. Wilshire Segment—Bridge Overview
Northbound I-405 Off-Ramp to Eastbound Wilshire
Demolition of the existing
northbound I-405 to
eastbound Wilshire off-
ramp will create space
that will allow us to
complete construction for
the new on-ramp from
eastbound Wilshire to
northbound I-405.
12

13. Wilshire Segment—Bridge Overview
Northbound I-405 Off-Ramp to Eastbound Wilshire
Ramp closure of existing off-ramp is projected for Summer 2013 to facilitate the
demolition of the existing ramp and the switch of traffic to the new ramp.
Twenty-one day closure
will be required
13

14. Wilshire Segment—Bridge Overview
Progress on Eastbound Wilshire On-Ramp to Northbound I-405
The northbound I-
405 on-ramp from
eastbound
Wilshire (looking
west)
14

15. Wilshire Segment- Wall Overview
Significant progress in retaining wall and sound wall construction
• Approximate total linear feet of retaining walls 17,375 ft.
• Approximately 86% complete
• Approximate total linear feet of sound walls 8,650 ft
• Approximately 96% complete
• Combined, there are 26,025 ft of retaining wall and sound walls
• Approximately 89.3% complete
• This is a total of 23,241 ft worth of completed walls
15

16. Wilshire Segment—Longest Walls
Length of wall 1599 is 2,250 ft
Length of wall 1672 is 1,450 ft
16

17. Sunset Segment
17

18. Sunset Segment—55-Hour Reduction
Northbound I-405: 55- Hour Lane Reduction
• Between Montana Ave and Getty Center Drive off-ramps
• Starts Friday, March 1 at 10pm
• Ends Monday, March 3 at 5am
• Lanes 1, 2, and 3 will be closed
• Southbound I-405 remains open
• Sepulveda Bl remains open
The area at the center of the mainline
will be paved to accommodate the new
HOV lane and to facilitate realignment
of the roadway.
18

19. Sunset Segment—55-Hour Reduction
Northbound (NB) I-405: 55- Hour Lane Reduction
• FULL Closure of NB 405 on:
• 1am to 6am Saturday, March 2
• 2am to 7am, Sunday, March 3
• 12am to 5am Monday, March 4
Looking south with
Montana Dr in the
background
19

20. Sunset Segment—55-Hour Lane Reduction
Northbound 55- Hour Lane Reduction
• Detour: exit NB 405 at Wilshire Bl, north on Sepulveda Bl, and back on
at Skirball Center Dr.
• Traffic Control Officers will be deployed at key locations along the
alignment.
• Changeable message signs will be utilized. These have been in place
since February 11 giving advance notice.
• Northbound ramps to be closed:
• Getty Center Dr on-ramp (6 months)
• Moraga Dr on-ramp
• Moraga Dr off-ramp
• Sunset Bl on-ramp
• Montana Av off-ramp
20

21. Sunset Segment

22. Sunset Segment – NB Getty On-Ramp
Northbound Getty On-Ramp Extended
Closure
• Starts with 55-hour lane reduction on March 1
• Will remain closed for 6 months
• Freeway storm drain work between Getty
Center and Getty Ramps
• Facilitate widening and realignment work
• Roadway paving

23. Sunset Segment—Reopening Sepulveda Wy
• Anticipated for Monday, March 11
• Sepulveda Bl will be shifted east
• Acceleration lane returned
23

24. Sunset Segment —Church Ln Bridge
• Anticipated to start after reopening of Sepulveda Way
• Widening of bridge on the northbound side
• Church Ln to be closed intermittently at night, including the
Church Ln/Sepulveda Bl intersection
• Detour: Westbound Sunset to northbound Beverly Glen to
Mulholland Dr to Skirball Center Dr to Sepulveda Bl
Expected duration is eight months.
24

25. Sunset Segment—Sunset Ramps
Sunset Bl On- and Off-Ramp Reconstruction
• Reconstructed for greater capacity
• Estimated completion:
• On-ramp- Summer 2013
• Off-ramp: Late Fall 2013
• The new on-ramp will have two dedicated turning lanes from Sunset Bl
New and current
northbound on-ramp side-
by-side
25

26. Sunset Segment
Wall 1720 and 1730—majority of lateral walls complete
26

27. Updated Landscape Plan—Wall 1720/1730
Collaboration between City, Caltrans, and Elected Officials
Wall 1720, Montana to Homedale
• 10-foot-wide sidewalk, 500 feet long
• Creeping fig will be planted at base of wall
• Approximately 20 trees will be planted
• Trees will be spaced according to substructure restraints
Wall 1730, Homedale to Bronwood alley
• 7 foot wide sidewalk, 500 feet long
• Creeping fig will be planted at base of wall
• Due to ADA requirements, not enough room for trees
• Currently investigating large shrub option
27

28. Mulholland Segment
28

29. Sherman Oaks and Valley Vista Work
• Freeway widening and sound wall reconstruction
ongoing on east and west sides of freeway
• Sepulveda Bl overpass/bridge widening ongoing
29

30. Valley Vista Area Construction
30

31. Sound/Retaining Wall Construction in
Sherman Oaks
9
31

32. Bel Air Crest Construction
Bel Air Crest
underpass is nearing
completion
32

33. Bel Air Crest Construction
Sepulveda Blvd.
Retaining wall
Fwy Widening
Bridge Widening
Bel Air Crest Entrance 33

34. Mulholland Bridge (North Half ) Reconstruction
• Ongoing nightly closures of Mulholland Dr due to drainage work
• Bridge abutment and column construction ongoing
• False work erection ongoing
Columns poured on
north side of
Mulholland Bridge
34

35. Skirball Bridge (South Half ) Reconstruction
• Bridge column construction complete
• Bridge abutment construction ongoing
Future bridge
abutment at east
side of Skirball
Bridge
35

36. Skirball Bridge Area Reconstruction
Northbound on-
ramp widening
worksite
36

37. Relocated Southbound Skirball Ramps
New Southbound Skirball on-ramp
• New Skirball on-ramp opened February 4 (closing existing
Skirball on-ramp at the same time)
• New southbound off-ramp under construction
• New southbound Skirball ramps relocated 2,000 feet south of
existing ramps
On-going utility relocation on Sepulveda Bl ongoing
37

38. Relocated Southbound Skirball Ramps
38

39. Relocated Southbound Skirball Ramps
39

40. Relocated Southbound Skirball Ramps
40

41. Sepulveda Bl Widening
• Temporary traffic reconfiguration complete
• Clearing and grubbing complete
• Excavation and grading to begin soon
• Retaining wall construction
• Full Sepulveda Bl closures
41

42. Sepulveda Widening
N
42

43. For More Information
Project Hotline: (213) 922-3665
I-405@metro.net
www.metro.net/I-405
www.facebook.com/I-405project
Twitter: http://twitter.com/I-405
43