Purple Line Extension Wilshire/La Cienega and Wilshire/Rodeo - PowerPoint PPT Presentation

Purple Line Extension Wilshire/La Cienega and Wilshire/Rodeo Stations March 13, 2019 1

Agenda • • Project oject Overvi rview ew Section ion 2 Pre-Con onst struction uction Upda dates tes Wilshire/Rodeo Station • • Section ion 1 Constr nstruc ucti tion on Upda dates tes Staging Yard Demolition • • Wilshire/La Cienega Station Geotechnical Investigation • Excavation • N. Canon Closure • Fossils • City Utilities • MOA Update • Mitigation Measures • • Business ness Inter terru rupt ption on Fund • Eat at Shop p Play ay #Bever verly lyHill ills 2

Purple Line Extension Project Alignment 3

Sections 1, 2 & 3 Status *Subject to change. The PLE project team is working to deliver the project consistent with Measure M Section 1 Section 2 Section 3 3.92 Miles 2.59 Miles 2.56 Miles Wilshire/La Brea Wilshire/Rodeo Westwood/UCLA Wilshire/Fairfax Century City/ Westwood/VA Wilshire/La Cienega Constellation Hospital 2014 – 2015 2016 – 2018 2018 – 2019 2015 – 2023 2018 – 2025 2019 – 2027 2023 2025 2027 4

Section 1 Wilshire/La Cienega Station 5

Wilshire/La Cienega Station Box Rendering shows length of the La Cienega underground station box on Wilshire Bl from La Cienega Bl to Tower Dr 6

Wilshire/La Cienega Station *As of March 2019, subject to change 7

Wilshire/La Cienega Construction Staging Yards Typical Activities/Equipment: • Excavation • Steel work • Deliveries • Hauling Typical hours are 6am – 11pm; • yard use is permitted 24/7 • All noise levels must remain in compliance with MOA and FEIR requirements Excavator in the La Cienega shaft 8

Wilshire/Gale Intermittent Daily Gale Closure – North of Wilshire Bl • Gale Dr will be intermittently closed Monday to Friday, 6am to 6pm, and Saturday 6am to 6pm • This closure is a public safety measure due to high volumes of ingress/egress from the property • Access to N Gale Dr will be maintained from San Vicente Gale Dr from north of Wilshire Bl Bl 9

Wilshire/La Cienega Installing braces inside Wilshire/La Cienega Station 10

Wilshire/La Cienega – Upcoming Work Instrumentation Work & Street Maintenance When: Ongoing ing through gh 2019 Instrume ument ntation ion work on Wilshire ire Bl and La Cienega ga Bl • Intermittent lane reductions on Wilshire Bl, La Cienega Bl, and side streets during off-peak hours (non-rush hour) Street Maintenanc nce, e, Dewatering ing Well Maintenanc nce, e, and Utility ty Work on Wilshire ire Bl Bl • Intermittent lane reductions on Wilshire Bl and side streets during off-peak hours (non-rush hour) 11 Example of instrumentation drilling

Staging Yard Mitigation La Cienega ga Yard Gale Yard • • Active ventilation fans and fan 14’ fences with sound blankets placed lines were wrapped with sound around the crane • blankets Applied an acoustic dampening material to the 895 crane engine enclosure • • 24’ steel frame placed around Added a muffling panel on the exhaust the ventilation system with door and engine compartment door • sound blankets Relocated slew alarm • Added a noise barrier rubber mat to the • Sound blankets surrounding lower engine panels • the ventilation system have been Acoustic plate under mounted on the upgraded allowing for more crane counterweight • sound absorption Adjusted the crane start up schedule, when possible • Started closing the gate, when feasible • Installed noise dampening louvre adjacent to crane motor 12

Section 2 Wilshire/Rodeo Station 13

Wilshire/Rodeo Station View from sidewalk 14

Tunnel Boring Machines Art and Naming Contest, Submit by Friday 15

Purple Line Extension Section 2 Alignment 16

Wilshire/Rodeo Station Box Station Box Rendering shows length of the underground station box on Wilshire Bl from Canon Dr to Beverly Dr 17

Wilshire/Rodeo Station Schedule *As of February 2019, subject to change. Pending Council approval. 18

Geotechnical Investigations Seismic Boring Study – Round 2 Additional borings to investigate and identify subsurface conditions • Started October 29, 2018. No work during Holiday Moratorium. • Work resumed January 14, 2019 • Estimated completion: March 13, 2019* • Work Hours: 8pm – 6am • FI-B-13 FI-B-18 FI-B-16 FI-B-15 FI-B-11 FI-B-3A FI-B-17 FI-B-14 FI-B-2A FI-B-12 19 Green = complete, Yellow = underway

Wilshire/Reeves Staging Yard Sound Wall Installation *Subject to change • Prep work began December 2018 • Installation to be completed in March 2019* • Work Hours: 8am – 6pm • Sound wall installed using soldier piles and prefabricated noise panels • Sound Wall: 20 feet Draft Stag aging ng Yard rd layout out • Public Information Graphics have been installed 20

Temporary Sidewalk Closure Wilshire/Reeves Staging Yard *Subject to change • Wilshire Bl and Reeves Dr sidewalks along the Reeves Staging Yard will be closed for repair • Southbound lane on Reeves Dr from Wilshire Bl to Charleville Bl will be closed • Alley behind the former Ace Gallery will be closed • March 13-15, 2019* • Sidewalk and street closures will be in place only on Thursday, 3/14/2019 and Friday, 3/15/2019 • Work Hours: 9am – 4pm 21

Demolition of N. Canon Properties *Subject to change Site Addres dress: s: 9383-9393 and 9395-9399 Wilshire Bl • Estimated duration of demolition activities: 5 weeks • Work start date: February 19, 2019 • Estimated completion date: late-March, 2019* • Two lanes in each direction will be maintained for work on Wilshire Bl • Work hours: Monday – Friday, 8am-6pm • Traffic control hours: 9am-4pm 22

N. Canon Demolition Progress • Temporary fencing will be installed after completion of demolition • Installation of 20-foot sound walls around the perimeter of the staging yard will begin in April 2019 23

Utility Ut lity Po Potho tholing ling *Subject to change • Potholing work to identify existing utilities below the street • Estimated Duration: 3-4 weeks • Anticipated Start Date: April 15, 2019* • Estimated Completion Date: Mid-May, 2019* • Work Hours: Monday – Friday 9:00am – 4:00pm • Lane closures on Wilshire Blvd. and adjoining streets will be required • Two lanes maintained in each direction. Example of potholing for water line • Impacted properties will be notified in advance of work starting 24

Water and Sewer Line Replacement Anticip ipated ted Start Date: Mid-May 2019* • Sewer Replacement - 10 weeks • Water Line Replacement - 12 weeks • 22 weeks total Work Hours: rs: • Weekdays: 9am – 4pm and 8pm – 7am • Weekends: 10am – 6pm (as needed) Trenching for waterline placement Traffic c Controls: ols: • Two lanes in each direction will be maintained for day work on Wilshire Bl • One lane in each direction will be maintained for night work 25

Sewer Line Replacement Stage 1: 5 d days • Work Hours: Monday-Friday, 9am-4pm • No left turn onto N Crescent Dr from om Wilshire re Bl Bl • No left turn onto Wilshire ire Bl Bl from om S Crescent Dr 26

Sewer Line Replacement Stage 2: 2: 5 days • Work Hours: Monday-Friday, 9am-4pm 27

Sewer Line Replacement Stage 3: 3: 5 days • Work Hours: Monday-Wednesday*, 9am-4pm • * Monday-Friday, 9am-4pm if N Canon Dr is closed 28

N. Canon Drive Closure Anticipated June 2019 29

N. Canon Drive Closure Piling Set-up Example of construction area with piling set-up on the north side of Wilshire Bl 30

N. C . Canon non Dr Drive ve Cl Clos osure ure Traffic Configuration • Install before piling for a minimum of 2 years • New traffic signal at Clifton/ Crescent • Existing meters / valet spaces on Clifton Way Clifton Way shift to the north • Maintain existing valet time periods • Relocate some meters on N. Canon Dr from East to West side Pedestrian walkway N. Canon Drive Sound wall with art on Canon side and public information graphics on Wilshire side

Pile Drilling Installation *Dates subject to change Pile installat ation ion include des: • Drill rig to drill holes • Crane to lift piles into holes • Truck to backfill holes • All work occurs behind K-rail Schedul dule • Following utility relocation, anticipated to start Q3 of 2019 • Work Hours: • 7 days a week • 8:00am – 9:00pm, drilling • 9:00pm – 11:00pm, non-drilling • Work in certain areas restricted to weekends Example of piling work in Century City 32

Pile Drilling Installation Example of progress on Constellation Bl 33

Decking *Dates subject to change Followi owing ng Piling: g: Anticip ipate ated d late 2019* 9* • Construction of a concrete deck, curb-to- curb on Wilshire Bl • Decking will serve as the temporary street surface • Work Hours: rs: Full closures Friday night at 8pm through Monday mornings at 7am Asphalt removal on Wilshire Bl near • Metro will work closely with first Detroit St responders on emergency access and safety • Additional activities under decking closures: ground improvements, piling, temporary civil improvements Steel beams welding prior to concrete deck 34 panel installation