Nighttime Construction along Genesee Avenue: Beginning in late May and continuing for approximately two months, crews will be performing exterior finish work on the Trolley bridge above Genesee Avenue, between Regents Road and Nobel Drive. The construction activities require nighttime closures of Genesee Avenue. Typical work hours will be Sundays through Thursdays, from 8 p.m. to 5 a.m. Please expect noise as this work is completed. The construction team is aware of residents in the area and will minimize impacts as much as possible. Please follow signage and use caution when traveling in the area.

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Daytime Closures of Genesee Avenue and Nobel Drive: Beginning Monday, June 1 and continuing through Friday, June 5, full closures will be in place on northbound Genesee Avenue from Nobel Drive to Esplanade Court, as well as on eastbound and westbound Nobel Drive from Genesee Avenue to Lombard Place. As work progresses, lanes may reopen to accommodate traffic on Genesee Avenue and Nobel Drive. Work hours will be 8 a.m. to 5 p.m. each day. Please expect noise as this work is completed. Please follow signage and use caution when traveling in the area.

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Closures of Eastbound Nobel Drive: Beginning Monday, June 1 and continuing for approximately two to three weeks, overnight full closures of eastbound Nobel Drive will be in place from the entrances of the Shops at La Jolla Village and La Jolla Village Square to the southbound I-5 on-ramp. Additionally, access to the southbound I-5 on-ramp from eastbound Nobel Drive will be closed. During the closures, crews will be performing electrical utility work to connect the Trolley. Work and closure hours will be Sundays through Thursdays, from 9 p.m. to 5 a.m. each night. Driveway access will be maintained at all times. Please heed all traffic signs and use caution when traveling near the work area.

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Full Closure of Northbound Campus Point Drive: Beginning June 1, a full closure of northbound Campus Point Drive will go into effect between Medical Center Drive and Genesee Avenue for crews to continue efforts to realign the roadway for the Voigt Drive Improvements Project. Southbound access on Campus Point Drive will remain open and access to the UC San Diego Medical Center will be maintained, though there may be traffic delays. Typical work hours will be Monday through Friday from 7 a.m. to 5 p.m. but may vary depending on the type of construction activity required. The closure is expected to be in place through fall 2021.

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Full Closure of Voigt Drive: UPDATE: The closure of Voigt Drive has been revised and is now in effect between The Preuss School driveway and Campus Point Drive. Beginning June 1, the closure will be in effect between parking lot P701 and Campus Point Drive. Access to and from Scripps Health facilities via Voigt Drive will be maintained through May 31. Beginning June 1, vehicles will be permitted to access the facilities via Voigt Drive but will be required to exit via Genesee Avenue. (Note that access via Voigt Drive will only be available from the west, and, while permitted, exiting vehicles must turn right onto Voigt Drive.) The closure is required for the Voigt Drive Improvements Project, which will realign Voigt Drive and Campus Point Drive permanently to provide direct access to the future Voigt Drive Trolley Station and to improve traffic flow in the area. The closure began Monday, April 20 and is anticipated to continue through fall 2021. Typical work hours will be Monday through Friday from 7 a.m. to 5 p.m., though occasional nighttime and weekend work may be required. Access to UC San Diego medical facilities also will be maintained, though alternate routes may be required. Traffic controls will be in place including temporary traffic signals, temporary wayfinding and detour signage, and roadway and sidewalk reconfigurations. 

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Construction of Trolley Parking Structure at La Jolla Village Square: UPDATE: Beginning Saturday, April 25, crews will be pouring concrete for construction of the future Nobel Drive Trolley Station parking structure in the La Jolla Village Square parking area. Concrete pours will continue intermittently through November 2020. Construction noise from back up alarms and concrete trucks may be present. The concrete pours will typically begin at 12:05 a.m., but work hours may vary. Access to businesses and shops will be maintained at all times. Construction of the parking structure began in January 2020 and is anticipated to continue through fall 2020. Typical work hours are Monday through Saturday from 7 a.m. to 5 p.m. Once complete, the parking structure will provide spaces for transit patrons and retail customers. 

View additional information on construction of the parking structure.

View additional information on the concrete pours. 

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Lane Closures on Pacific Highway, Taylor Street, and Rosecrans Street: Beginning late February and continuing through summer 2021, intermittent lane closures will be in place on Pacific Highway, Taylor Street, and Rosecrans Street for transit related improvements. Crews will reconfigure Pacific Highway and Taylor Street in preparation for the anticipated increase in Trolley crossings at Taylor Street upon completion of the Mid-Coast Trolley project. Additionally, crews will make improvements to the Old Town Transit Center and the adjacent Park & Ride. Both daytime and nighttime work will be required. Daytime work hours will be from 7 a.m. to 5 p.m. Nighttime work hours will be from 9 p.m. to 5 a.m. Please use caution when traveling in the area and follow signage. 

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Santa Fe Street Parking Reductions: In April, crews will begin the permanent removal of parking on the west side of Santa Fe Street, between Karl Strauss Brewing Company (5965 Santa Fe Street) and Coventry Cars of San Diego (5097 Santa Fe Street), in preparation for construction of the Rose Creek Bikeway. Portions of Santa Fe Street will be intermittently reduced to a single lane to accommodate construction. Access to businesses will be maintained. 

View additional information. 

Construction of Trolley Tunnel Underpass at La Jolla Colony Drive: Starting March 3, crews began construction of the Trolley underpass at La Jolla Colony Drive. To accommodate construction, lanes on La Jolla Colony Drive will be reconfigured to provide one lane in each direction. Construction is expected to be complete by late 2019. Some full weeknight and weekend closures may be required throughout construction, during which time, there will be no access to La Jolla Colony Drive from east of the Interstate 5 on- and off-ramps to Rosenda Court.

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Morena Boulevard Lane and Sidewalk Closures between Gesner Street and Jellett Street: Starting February 19, a sidewalk closure and traffic controls will be in effect on northbound Morena Boulevard to accommodate ongoing Mid-Coast Trolley construction activities. A single lane of northbound Morena Boulevard will be closed between Gesner Street and Jellett Street, along with the sidewalk at the southeast corner of the Morena Boulevard and Ingulf Street intersection. One lane of northbound traffic will remain open on Morena Boulevard, and access to businesses will be maintained at all times. Traffic control signs will be posted for construction zone safety.

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Underground Systems Work: Through late 2020, construction crews will continue intermittent work and testing on underground communication and electrical systems for the Mid-Coast Trolley project within the railroad right-of-way between Taylor Street in Old Town and Cedar Street in Downtown San Diego. General work hours will be Sundays through Thursdays, 9 p.m. to 5 a.m., and some day and weekend work may be required. For more information on each work location, please view the fliers below: 

• Taylor Street
• Witherby Street
• Noell Street
• Washington Street
• Bean Street
• Palm Street
• Olive Street
• Sassafras Street
• Juniper Street
• Cedar Street  

Morena Boulevard Construction Activities: Beginning May 2, northbound Morena Boulevard, from Balboa Avenue to Tecolote Road, will be reduced to one lane. Southbound Morena Boulevard is reduced to one lane of traffic in some areas. Work hours will be during the day, from 7 a.m. to 5 p.m., but closures will remain in place 24 hours a day.

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Genesee Avenue Traffic Shift: On January 2, 2018, crews began shifting traffic to the outer lanes of Genesee Avenue from La Jolla Village Drive to Nobel Drive. Crews also began construction on the viaduct - a bridge structure that will carry the Trolley down the middle of Genesee Avenue. This work is focused on Genesee Avenue, from Regents Road to Nobel Drive. Northbound and southbound lanes of Genesee Avenue will be restriped and shifted to the outer lanes from Regents Road to Nobel Drive while crews begin work in the median. Large drilling equipment will be set up within the median. Traffic control phasing and lane configuration may vary between day and night work hours. Traffic control signs, including necessary detours for motorists, pedestrians and bicyclists, will be posted. These types of traffic controls will be deployed at various times through early 2020.

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Rose Creek Bikeway Construction: Preliminary construction of the Rose Creek Bikeway began in January 2018. Initial work included clearing and removing vegetation in the construction area near the creek between Santa Fe Street and I-5. Major construction began in June 2018, including construction of the trail, under-crossings, and a bridge. Project completion is anticipated in spring 2020.

View additional information.

Gilman Drive Bike Lane Near Rose Canyon Bike Path: A portion of the bike lane on Gilman Drive, below the I-5 freeway overpass, will be intermittently closed for project construction access. Cyclists will still be able to access the Rose Canyon Bike Path. Please exercise extra caution when traveling near the work area. 

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Marian Bear Memorial Park: Crews have fenced off an area within the Rose Creek Channel, near the existing railroad tracks, for construction activities and staging equipment purposes. There will be no access along the Rose Creek channel between Marian Bear Memorial Park and Rose Creek open space. Users of the Marian Bear Park trail should avoid entering or passing through the construction area. Please follow direction of the posted signs.

Friars Road: In fall 2016, crews began work along Friars Road between Sea World Drive and Napa Street to build the San Diego River Bridge Double Track project in advance of construction on the Mid Coast Trolley project. Several traffic control phases involving multiple lane closures and shifts will be implemented in this area throughout the course of the project to help facilitate this work. The concrete barrier railing that has been placed on Friars Road is to support both projects and also is expected to last throughout the project duration. 

View construction notice.

Balboa Avenue: Crews continue to work nights to minimize impacts to local traffic. For all residents and businesses in the area, access to driveways will be maintained throughout the project. There may be some portions of roads closed or detoured at night. 

View additional information.

Completed Activities

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Closures of La Jolla Village Drive Overpass: On October 14, overnight closures will be in place on the eastbound and westbound lanes of the La Jolla Village Drive overpass above Interstate 5, as crews perform construction activities for the Trolley overcrossing. Both northbound and southbound on-ramps to I-5 from La Jolla Village Drive will also be closed. Work and closure hours will be from 10 p.m. to 5 a.m. Please take alternate routes to avoid potential congestion.

View additional information.

Overnight Closure of Northbound I-5 Lanes: On Tuesday, October 8, a full overnight closure of northbound Interstate 5 lanes will be in place from SR 52 to La Jolla Village Drive. The closure will be in effect from 9:30 p.m. to 5 a.m. Please take alternate routes to avoid potential congestion.

View additional information.

Morena Boulevard Construction Activities: On Saturday, October 5, crews will be pouring concrete for the ramps at the future Clairemont Drive Trolley station. Work hours will be from 5 a.m. to 9 a.m. Northbound and southbound Morena Boulevard will remain open. Flaggers will be present to direct trucks in to and out of the construction site. The use of concrete trucks may cause moderate noise levels. Please use caution when driving near the work area. 

View additional information. 

Olive Street TPSS Installation: Starting Monday, September 30, and continuing through Friday, October 4, crews will be pouring concrete to finalize the installation of the new traction power substation (TPSS) at Olive Street, near the railroad right-of-way. Parking restrictions, a lane closure, and a sidewalk closure will be in place on Olive Street between 7 a.m. and 3 p.m. each day. Access to businesses and residences will be maintained at all times. 

View additional information. 

Full Closures of Southbound I-5 Lanes: Beginning Tuesday, October 1, full closures of southbound I-5 lanes will be in place from the I-5/I-805 Interchange to La Jolla Colony Drive. On Tuesday, October 1, the closure will be in effect from 12 a.m. to 5 a.m. On Wednesday, October 2, the closure will begin at 9:30 p.m. and continue through 5 a.m. on Thursday, October 3. Please take alternate routes to avoid potential congestion. 

View additional information.

Lane Closures on Morena Boulevard: The closures originally scheduled to begin on Monday, September 16, have been postponed to the following week. Now beginning Monday, September 23, and continuing through Thursday, September 26, a full closure will be in place on southbound Morena Boulevard, between Gesner Street and Ingulf Street, from 9 p.m. to 5 a.m. each night. Crews will be pouring concrete for the platform at Clairemont Station. Please expect some noise from concrete trucks. Traffic controls will be in place. Please follow detour signs and use caution when traveling in the area.

View additional information.

Train Control System Upgrade: Beginning the evening of Friday, September 20, full weekend lane reductions will be in place across the railway tracks at Taylor Street as crews upgrade the train control system from the Santa Fe Depot to the Old Town Transit Center Station. Work and lane reductions will be in effect from 9 p.m. on Friday, September 20, through 5 a.m. on Monday, September 23. Flaggers will be present and traffic controls will be in place. Lane reductions will not be in place at Noell Street, as previously planned.

View additional information.

Train Control System Upgrade: Beginning Friday, September 6, street closures and lane reductions will be in place on Noell Street, Taylor Street, and Washington Street as crews upgrade the train control system from the Santa Fe Depot to the Old Town Transit Center Station. Overnight full closures across the railway tracks at Noell Street are scheduled from Friday, September 6, through Sunday, September 8, from 9 p.m. to 5 a.m. each night. Full weekend lane reductions across the railway tracks at Taylor Street and Washington Street are scheduled from 9 p.m. on Friday, September 6, through 5 a.m. on Monday, September 9. Flaggers will be present and traffic controls will be in place. 

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Closure of Nobel Drive: Starting Wednesday night, September 4, Nobel Drive will be closed for crews to pour concrete on the Trolley viaduct, or bridge, above Nobel Drive. A full closure will be in place on Nobel Drive, from the Interstate 5 off-ramp to the entrances of the Shops at La Jolla Village and La Jolla Village Square. Closure hours begin Wednesday night, September 4 at 10 p.m., and will continue through Thursday morning, September 5 at 5 a.m. There will also be a closure of the southbound I-5 on-ramp from Nobel Drive beginning at 7 p.m. on Wednesday, September 4. Please use caution and follow detour routes when traveling in the area.

View additional information. 

Olive Street TPSS Installation: Starting Monday, August 5, crews will begin installing underground electrical conduit systems to connect and activate the traction power substation (TPSS) at Olive Street, near the railroad right-of-way. For approximately two weeks, parking restrictions will be in place on Olive Street between 7 a.m. and 5 p.m. each day, and a lane closure and sidewalk closure will be in place on Olive Street and Kettner Boulevard between 9 p.m. to 5 a.m. each night. Access to businesses and residences will be maintained at all times.

View additional information.

Train Control System Upgrade: Beginning Friday, August 2, street closures and lane reductions will be in place on Noell Street, Palm Street, Washington Street, and Sassafras Street as crews upgrade the train control system from the Santa Fe Depot to the Old Town Transit Center Station. Overnight full closures across the railway tracks at Noell Street and Palm Street are scheduled from Friday, August 2, through Sunday, August 4, from 9 p.m. to 5 a.m. each night. Full weekend lane reductions across the railway tracks at Washington Street and Sassafras Street are scheduled from Friday, August 2, at 9 p.m. through Monday, August 5, at 5 a.m. Flaggers will be present and traffic controls will be in place. 

View additional information.

Closures of La Jolla Village Drive Overpass: Beginning Wednesday, July 24, closures will be in place on the eastbound and westbound lanes of the La Jolla Village Drive overpass above Interstate 5, for crews to remove falsework from the Trolley overcrossing. Both loop on-ramps to I-5 from La Jolla Village Drive will also be closed. Closures are scheduled from Wednesday, July 24, through Thursday, July 25, and will continue from Sunday, July 28, through Thursday, August 1. Work and closure hours will be from 10 p.m. to 5 a.m. each night. Please take alternate routes to avoid potential congestion.

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Overnight Closures of Southbound and Northbound I-5 Lanes: Beginning Wednesday, July 17, a full overnight closure of southbound I-5 lanes will be in place from the I-5/I-805 Interchange to La Jolla Colony Drive. Additionally, beginning Thursday, July 18, a full overnight closure of northbound I-5 lanes will be in place from SR 52 to La Jolla Village Drive. Closures will be in effect from 9:30 p.m. to 5 a.m. each night. Please take alternate routes to avoid potential congestion.

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Northbound I-5 Off-Ramp and Lane Closures at Balboa Avenue: A full closure of the northbound Interstate 5 off-ramp to Balboa Avenue is scheduled from midnight on Friday, July 12, to 11 a.m. on Saturday, July 13, as crews continue paving the newly widened off-ramp. During construction, one lane will be closed on eastbound Balboa Avenue/Garnet Avenue between Mission Bay Drive and Moraga Avenue. Additionally, one lane will be closed on northbound Interstate 5, between the Mission Bay Drive off-ramp and the Balboa Avenue off-ramp, from 3 a.m. to 9 a.m. on Saturday, July 13. 

View additional information.

Overnight Closures of Northbound I-5 Lanes: Beginning Tuesday, June 18, overnight closures will be in place on northbound Interstate 5 as crews remove falsework at Voigt Drive and install falsework south of Nobel Drive. Closures will be in effect on northbound I-5 from SR 52 to Genesee Avenue and will be scheduled from Tuesday, June 18, through Thursday, June 20, and again from Sunday, June 23, continuing to Friday, June 28, from 9:30 p.m. to 5 a.m. each night. Please take alternate routes to avoid potential congestion. Note: the northbound closures scheduled through June 28 were completed ahead of schedule on the morning of Tuesday, June 25. No further closures are scheduled for the remainder of the week.

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Olive Street TPSS Installation: On Wednesday, June 26, a second traction power substation (TPSS), which will provide power for the Trolley, will be installed at Olive Street, near the railroad right-of-way. Work is scheduled from 2 a.m. to 4 p.m. Parking and lane closures will be in place on Olive Street and Kettner Boulevard during installation.

View additional information. 

Closure of Nobel Drive: Starting Tuesday night, June 11, Nobel Drive will be closed for crews to pour concrete on the Trolley viaduct, or bridge, above Nobel Drive. A full closure will be in place on Nobel Drive, from the Interstate 5 off-ramp to the entrances of the Shops at La Jolla Village and La Jolla Village Square. Closure hours begin Tuesday night, June 11, at 10 p.m. and will continue through Wednesday morning, June 12, at 5 a.m. Please use caution and follow detour routes when traveling in the area.

View additional information.

Overnight Closures of Southbound I-5 Lanes: Beginning Sunday, June 9, and continuing through Friday, June 28, temporary overnight closures will be in place on southbound Interstate 5 as crews remove falsework at Voigt Drive and install falsework south of Nobel Drive. Closures will be in effect on southbound I-5 from the I-5/I-805 Interchange to La Jolla Colony Drive and will be scheduled Sundays through Thursdays, from 9:30 p.m. to 5 a.m. each night. Please take alternate routes to avoid potential congestion. Additional closures on northbound I-5 will be required and notices will be provided at a later date. 

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Closures of Friars Road: A full nighttime closure of Friars Road between Sea World Drive and Napa Street is scheduled from Sunday, June 9, to Thursday, June 13, to accommodate construction of the San Diego River Bridge. Work hours will be 7 p.m. to 5 a.m. each night. Traffic controls and detours will be in place for motorists. 

View additional information.

Closure of Nobel Drive: Starting Tuesday, May 7, at 10 p.m. and continuing through Wednesday, May 8, at 5 a.m., Nobel Drive will be closed from the I-5 off-ramp to the entrances of the Shops at La Jolla Village and La Jolla Village Square. During the closure, crews will pour concrete along the Trolley viaduct. On Tuesday, prior to the full closure, the southbound I-5 on-ramp will be reduced to one lane from 7 p.m. to 10 p.m. Please use caution and follow detour routes when traveling in the area.

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W. Morena Boulevard Lane Closures near Tecolote Road: On May 1 and May 2, a full, nighttime closure of northbound and southbound W. Morena Boulevard will be in effect from the northern junction of W. Morena Boulevard/Morena Boulevard to Vega Street, to accommodate utility work. Work and closure hours will be from 9 p.m. to 5 a.m. each night. Please follow the posted detour signs and traffic controls when traveling in the work area.

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Closure of Morena Boulevard: On Tuesday, April 30, a nighttime full closure of northbound Morena Boulevard will be in place between Ingulf Street and Gesner Street. This closure is necessary to accommodate the delivery of a traction power substation (TPSS), which will provide power for the Trolley. Work and closure hours will be from 9 p.m. on Tuesday, April 30, through 5 a.m. on Wednesday, May 1. Please follow the posted detour signs and traffic controls when traveling near the work area.

View additional information. 

Santa Fe Street Parking Reductions: In April, crews will begin the permanent removal of parking on the west side of Santa Fe Street, between Karl Strauss Brewing Company (5965 Santa Fe Street) and Coventry Cars of San Diego (5097 Santa Fe Street), in preparation for construction of the Rose Creek Bikeway. Portions of Santa Fe Street will be intermittently reduced to a single lane to accommodate construction. Access to businesses will be maintained. 

View additional information. 

Olive Street TPSS Installation: On Wednesday, April 17, a traction power substation (TPSS), which will provide power for the Trolley, will be installed at Olive Street, near the railroad right-of-way. Work is scheduled from 2 a.m. to 4 p.m. Parking and lane closures will be in place on Olive Street and Kettner Boulevard during installation.

View additional information. 

Overnight Closure of Interstate 5 Lanes: From 9:30 p.m. on Thursday, April 11, through 5 a.m. on Friday, April 12, temporary overnight closures will continue on Interstate 5 as crews pour concrete to build the bridge deck for the Trolley overpass at Voigt Drive. There will be a full closure of southbound lanes from the I-5/I-805 Interchange to La Jolla Village Drive. Two northbound lanes will be closed from La Jolla Village Drive to Genesee Avenue. Please take alternate routes to avoid potential congestion. 

View additional information.

View additional information. 

Temporary Realignment of Rose Canyon Bike Path and I-5 Impacts: Starting June 13, 2018, a southern portion of the Rose Canyon Bike Path will be temporarily relocated to the west side of the train tracks, east of Interstate 5 and north of Santa Fe Street, while crews construct a new, permanent path. The interim path will connect the north end of Santa Fe Street to about 1,000 feet north of State Route 52. A temporary realignment of the northern portion of the bike path is also in place, rerouting to a protected, temporary two-lane bikeway located on the outside shoulder of the northbound I-5 off-ramp. Sections of the permanent path will be reopened as they are completed starting in summer 2019. The full, permanent path is anticipated to open in 2020.

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Gilman Drive Bridge: Work began in late 2016 on I-5 near Gilman Drive to prepare for construction of the Gilman Drive Bridge. Crews have installed temporary barricades near Gilman Drive that will remain for approximately two years. The new bridge will connect the west and east sides of UC San Diego and span I-5.