Emergency repairs to safeguard the railroad tracks on the Del Mar bluffs will value about $10.5 million, regional planning officers stated this week.
A 288-foot-long seawall will likely be constructed to switch the one which collapsed in late February. Since then, due to security restrictions, passenger trains crossing the bluffs can journey no sooner than 15 mph and freight trains are restricted to 10 mph.
The sluggish speeds delay visitors on an important element of the one north-south rail hall between San Diego, Los Angeles and San Luis Obispo. Collectively, Amtrak’s Surfliner intercity passenger trains and Coaster commuter trains serve 7.6 million passengers a yr on what’s typically known as the LOSSAN hall, in accordance with the San Diego Affiliation of Governments, the regional planning company.
The rail line additionally carries freight trains, normally at evening, from the Port of San Diego and different locations inside San Diego County. Loaded with new vehicles, building provides and different items, freight trains contribute $1 billion yearly to the area, SANDAG says.
The specter of shedding that hyperlink within the coastal rail route has planners, engineers and geologists working extra time, nights and weekends, to guard the route on the Del Mar bluffs.
The unique seawall, inbuilt 1910, was about 60 ft lengthy and 18 ft excessive, and held again delicate materials used to fill a canyon or ravine when the railroad was constructed. Soil in that part stays unfastened and dangerous.
“It’s very poorly compacted soil,” stated John Haggerty, director of engineering and building for the San Diego Affiliation of Governments in a presentation Thursday, March 18, to the North County Transit District’s board of administrators.
Your complete part of fill materials must be dug out, changed and compacted once more earlier than the reinforcement constructions could be added, Haggerty stated.
Additionally, about 18 vertical concrete-and-steel assist columns, or soldier piles, will likely be put in parallel to the tracks on the prime of the bluffs and as deep as 60 ft into the bottom. The piles will likely be tied into horizontal anchors into the soil and related on the prime by concrete band slightly below the floor.
Work started with grading the slope on March 13 and 14 throughout one of many transit district’s recurrently scheduled “all work home windows,” when prepare service is suspended for the weekend to offer entry for upkeep and building. One other rail service suspension is deliberate for this Saturday and Sunday.
“We’ll work nights and weekends, and we might ask for added work home windows,” Haggerty stated. The work schedule is proscribed by the necessity to accommodate day by day passenger and freight trains. Additionally, excessive tides attain the bottom of the bluff and prohibit entry from the seaside for a number of hours a day.
A schedule outlined Thursday, March 18, calls for added preparation on the observe degree this weekend to organize for the solider piles’ set up, which is predicted in April and Could, Haggerty stated. Development of the seawall, closing grading and replanting with native vegetation will happen in June and July.
A lot of the proposed emergency work was initially deliberate to happen within the fifth section of the continued bluff stabilization mission. The mission started about 20 years in the past, and the fourth section was accomplished in January. The fifth section was beforehand scheduled to begin in 2023, however a lot of the work has been moved forward due to the collapse.
Collectively, the fifth and sixth phases of bluff stabilization mission are anticipated to value about $100 million. The stabilization work is meant to guard the tracks on the bluffs till a brand new route could be constructed, presumably a tunnel bored beneath the streets and houses of Del Mar. Development of a brand new route will value not less than $3 billion.
Earlier this month, a subcontractor employed by SANDAG started taking soil samples alongside the potential inland routes being thought of.
Planning, design, and engineering, together with securing funding for an inland route are more likely to take 10 years, officers have stated. Development may take an extra 10 years.
Completion of a brand new route will take widespread assist from the general public and their elected officers, particularly if a county-wide poll measure is required to lift the cash required. Prior to now, the Del Mar Metropolis Council has publicly supported the thought, however not less than one new council member stated Friday, March 19, he’s not on board.
“There must be way more crucial dialogue concerning the very low ridership numbers of the Coaster and Surfliner and their future ridership projections in mild of the pandemic, submit pandemic distant working tendencies, the arrival of self-driving electrical autos and transportation-as-a-service, and the potential of such autos to function as a clear and dynamic point-to-point mass transit system on our highways and roads,” stated Del Mar Councilman Dan Quirk, elected in November and the town’s new consultant on the NCTD board.
Ridership on the Coaster is down 90 p.c from a yr in the past due to the pandemic journey restrictions, stated Kimberly Tucker, NCTD director of service and planning. Nonetheless, district officers anticipate riders to begin returning as extra persons are vaccinated.
District officers plan to revive a number of the trains in April that have been cancelled throughout the pandemic, with hopes to totally restore service to pre-pandemic ranges in June.
And whereas rail freight might convey the area $1 billion a yr, that will not be price the price of drilling a tunnel beneath the town of Del Mar, Quirk stated.
“Rail freight is minimal and accounts for about 0.5% of all freight in San Diego County,” Quirk stated, quoting numbers from SANDAG. “The opposite 99 percent-plus is successfully on the highways.”
Quirk steered the “highest and finest use” for the prepare tracks from San Diego to San Luis Obispo is a pedestrian path, an concept that has proved profitable on plenty of previous rail traces in different elements of the US.
That proposal doesn’t match with SANDAG’s 5 Large Strikes, introduced by Government Director Hasan Ikhratra in 2019.
Ikhrata stated the county ought to spend much less cash on freeway and freeway enhancements so it could possibly make investments billions of {dollars} in mass transit, increasing rail traces and growing prepare service. The coastal rail route is a key a part of that plan.
His technique has been a tough promote, particularly in North County and East County areas the place, till the pandemic, freeways have been crowded with commuters. For the previous yr, like riders on passenger trains, the thought has stalled.
— Phil Diehl is a reporter for The San Diego Union-Tribune
