Full coverage: Devil’s Gate Dam sediment removal project
Now set for early May, a convoy of diesel trucks will begin hauling away nearly 2 tons of sediment from Hahamongna Watershed Park, taking 400 daily round trips along portions of Oak Grove Drive and Berkshire Avenue eight months a year over a four-year period.
- 1
La Cañada mom and chemistry teacher Liz Krider was at the center of a small group of parents whose diligence on behalf of their children in one year led to big, positive changes for the county’s Devil’s Gate sediment removal project.
Oct. 31, 2019
- 2
In a forum Tuesday, residents learned devices directly inside the exhaust pipes of certain diesel haulers so their data points can be recorded as part of a UC Riverside study will not likely begin until next spring.
Sept. 25, 2019
- 3
Members of “LCF 4 Healthy Air” and county Public Works will co-host two meetings Tuesday — at 8:45 a.m. and at 7 p.m. — to explain “Phase II” air quality monitoring set to begin at the Devil’s Gate Dam project site.
Sept. 20, 2019
- 4
The project was cited three times for violations pertaining to dust and dirt tracking caused by insufficient mitigation efforts, agency officials said.
Sept. 11, 2019
- 5
A plan to measure pollutants from diesel trucks leaving Devil’s Gate Dam will go forward after L.A. County Supervisor Kathryn Barger ordered a tailpipe emissions program.
Aug. 21, 2019
- 6
In a study session Tuesday, county officials promised a pilot program would place tarps on five of 95 trucks but residents said too little, too late.
Aug. 7, 2019
- 7
While the county’s air quality readings near the Devil’s Gate dig site have not been alarming, concerns about dust on local streets are on the rise.
July 31, 2019
- 8
After a decade of planning, environmental tests, legal challenges and amendments by elected officials, a convoy of trucks hired by the county began rolling into Hahamongna Watershed Park Tuesday morning to begin clearing sediment from behind Devil’s Gate Dam.
May 22, 2019
- 9
Trucks will begin hauling tons of sediment from behind Devil’s Gate Dam on Monday morning, after the installation of air monitors around Hahamongna Watershed Park and a forecast of rain delayed the project’s start by one week, county officials said.
May 15, 2019
- 10
The city of La Cañada Flintridge will serve as an intermediary between the County Public Works department and residents concerned about the imminent Devil’s Gate Dam Sediment Removal project, after citizens urged the City Council Tuesday to act on their behalf.
May 9, 2019
- 11
When concerned La Cañada residents attended a meeting in December to learn about the county’s plans to remove more than 2.8 million tons of sediment from nearby Devil’s Gate Dam starting this spring, fear and anxiety predominated.
May 1, 2019
- 12
With the start of the four-year Devil’s Gate Sediment Removal project just days away, La Cañada school officials are collecting baseline air quality data that could provide a clearer picture of the project’s impacts by offering a before-and-after comparison.
May 1, 2019
- 13
The La Cañada Flintridge City Council could soon discuss creating a community safety plan related to the county’s impending Devil’s Gate Dam sediment removal project, after a contingent of parents, students and educators requested the city help minimize the project’s impacts.
April 18, 2019
- 14
With the county’s Devil’s Gate Dam Sediment Removal project slated to begin in May, the Los Angeles County Board of Supervisors voted Tuesday to fund an air quality monitoring program that could set the standard for future projects.
April 3, 2019
- 15
Though the Los Angeles County Public Works Department continues to move forward with its multiyear Devil’s Gate Dam sediment removal project, its April 15 start has been pushed back to May 7, due to weather-related delays.
March 29, 2019
- 16
For the past week, Los Angeles County Public Works Department crews have been spotted in the Hahamongna Watershed basin clearing tree limbs, trash and mud deposited by winter rainstorms so nearby Devil’s Gate Dam can operate more efficiently.
Feb. 28, 2019
- 17
The Los Angeles County Public Works Department’s effort to remove sediment build-up from behind Devil’s Gate Dam has been an uphill battle that’s lasted nearly a decade as the agency has dealt with environmentalists’ lawsuits and ongoing public scrutiny.
Oct. 31, 2018
- 18
A four-year effort to remove 1.7 million cubic yards of sediment from behind Devil’s Gate Dam in the Arroyo Seco will begin this month with restoration of a wildlife habitat area, Los Angeles County Public Works Department officials announced last week.
Oct. 11, 2018
- 19
Work will start this month on a major, four-year-long project at Devil’s Gate Dam that will include restoration of wildlife habit and the removal of 1.7 million cubic yards of built-up sediment behind the aging dam in the Arroyo Seco, according to the Los Angeles County Public Works Department.
Oct. 5, 2018
- 20
Locals could begin seeing evidence of the county’s plan to remove 1.7 million cubic yards of sediment from Devil’s Gate Dam sometime this fall, as officials anticipate vegetation clearance and access road construction could begin sometime in November.
June 20, 2018
- 21
The Los Angeles County Public Works Department’s plan to remove 2.4 million cubic yards of sediment from behind Devil’s Gate Dam at Hahamongna Watershed Park was downgraded Tuesday, after county supervisors voted to cap removal at 1.7 million cubic yards.
Nov. 8, 2017
- 22
On Monday, the Los Angeles County Flood Control District released revisions to its final environmental impact report (FEIR) for the removal of a proposed 2.4 million cubic yards of sediment from behind Devil’s Gate Dam in the Hahamongna Watershed Park, across from La Cañada High School, over the next three to five years.
July 26, 2017
- 23
The public is invited to a discussion Thursday, July 20, from 7 to 9 p.m. at the Altadena Community Center, where participants will receive a status update on the Devil’s Gate Dam Sediment Removal project proposed by the County of Los Angeles Department of Public Works and learn about a proposed crosstown pipeline that would transfer water from behind Devil’s Gate Dam to Altadena’s Eaton Canyon.
July 19, 2017
- 24
Los Angeles County Department of Public Works officials have been ordered to temporarily suspend all activities pertaining to a multiyear sediment removal project at Devil’s Gate Dam, after a Los Angeles Superior Court judge ruled last month to decertify portions of the agency’s environmental mitigation plans.
April 5, 2017
- 25
Los Angeles County Department of Public Works officials will likely have to revise and re-vet their environmental impact report for a multiyear sediment-removal project at Devil’s Gate Dam, after a Los Angeles Superior Court judge issued a tentative ruling Tuesday calling plans for mitigating the cumulative habitat and air quality impacts of the project “deficient.”
Feb. 16, 2017
- 26
Supporters, opponents clash over expected 3- to 5-year project to haul sediment from Devil’s Gate dam.
July 20, 2016
- 27
Groups challenging impact of planned sediment removal at Devil’s Gate Dam have January hearing.
July 6, 2016
- 28
Despite strong opposition from neighbors and recreational enthusiasts, the Los Angeles County Board of Supervisors approved a five-year project Wednesday to remove debris from a basin above Devil’s Gate Dam in Pasadena.
Nov. 12, 2014
- 29
Dozens of residents from La Cañada Flintridge and neighboring cities linked hands and stood on the bridge overlooking the dam on Saturday morning.
Dec. 18, 2013
- 30
Devil’s Gate Dam sediment project isn’t settling well for residents
Dec. 4, 2013
- 31
- 32
L.A. County crews to begin removing mud from basin behind Pasadena dam
June 13, 2011