• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

The Glen Park Association

Up-to-the-minute news from Glen Park

  • Home
  • Glen Park Association
    • About the Glen Park Association
    • Join the GPA
    • GPA Board Contacts
    • Bylaws
    • Neighborhood boundaries
    • Financials
    • GPA Meeting Minutes
  • News Stories
    • Glen Park News
    • Glen Park News archive
  • Greenway
    • About
    • Greenway Plan
  • GPA Grants Program
  • Crime & Safety
  • Contact
    • Contact
    • Volunteer Sign Ups
    • Event Submission
    • Author Submissions

When Trees Attack: An Investigation into the Dorothy Erskine Park Tree-Tastrophes

March 16, 2023 by Bonnee Waldstein

Above photo: Murray Schneider. Other photos: Octavio Di Scuillo except where noted.

(Note: The title of this post was generated by ChatGPT, AI chatbot, courtesy of Octavio Di Sciullo. The rest was generated by a human.)

The Trust for Public Land says San Francisco is the first U.S. city where all residents live within a 10-minute walk to a public park. Most people would be thrilled to live a stone’s throw from one of our city parks. Trees and other natural features and wildlife provide calm and respite for nearby residents.

But not always.

Dorothy Erskine Park exists in a corner of the Glen Park neighborhood. It encompasses a mere 1.5 acres at Martha Avenue and Baden Street–it’s easy to miss among the total 5,384 acres of city parks. Beyond some sweeping vista views to the southeast, it has few if any features that would draw people to it, other than dogwalkers and birdwatchers. There are no benches for the weary. Furthermore, it is dwarfed by the wildly popular and nearby 70-acre Glen Canyon Park, with its multitude of recreational facilities, wild spaces and hiking trails that attract people from all over the Bay Area.

Dedicated in 1979, the park was named after Dorothy Erskine (1896 – 1982), founder of both SPUR (the San Francisco Bay Area Planning and Urban Research Association) and the Greenbelt Alliance. Erskine is featured in the Glen Park Women Hall of Fame, an exhibit by Evelyn Rose of the Glen Park Neighborhoods History Project on display at the Glen Park Branch Library through March 31.

For a complete history of the park, read the story in the Sunnyside history website.

“This small Natural Area offers outstanding City views, recreational opportunities, a diverse native grassland and scrub habitats, and urban forest areas,” notes the San Francisco Parks Alliance website.

Dorothy Erskine Park hovers high above homes on the 1100 block of Bosworth Street and goes unnoticed for the most part, until the heavy rains that began in December awakened menacing forces of nature.

The atmospheric rivers (also called the Pineapple Express) that have bombarded California for several months now hit Glen Park on December 11, 2022, after which a large pine tree tumbled over and fell off the steep retaining wall that separates Dorothy Erskine Park from the houses below, crashing into the rear of several of them that front onto Bosworth Street.

Subsequently, two or three more trees in the same spot fell over and came to rest, dangling precariously at the midpoint of the retaining wall.

A resident at one of the houses, Octavio Di Sciullo, reported to the Glen Park News that, “The tree caused an inside wall breach in my daughter’s bedroom, a couple of feet away from where she was sleeping, showering her bed with plaster and paint dust that was later found to contain traces of lead.” His family has been, and still is, displaced from their home while working with insurance to get their home repaired.

Damage to several homes is extensive. There is severe exterior structural damage and one deck was destroyed as well as three fences. Inside, personal effects are contaminated by lead paint, dust and debris. A bedroom wall was breached in two homes, leaving them uninhabitable. A deck at a home on Burnside Avenue was also partially destroyed.

The neighbors requested urgent help from SF311 and the San Francisco Parks and Recreation Department (SFRPD), which responded quickly and removed the fallen tree.

Of great concern to the neighbors was the forecast of a continuing series of storms, bringing much more rain and wind that could detach the still-dangling trees from their threatening positions, causing a crash into their homes yet again.

Trees dangling on retaining wall. Photo: Bonnee Waldstein

In February of this year, after the January 4 storm, the dangling trees were removed, causing some exterior damage to homes.

Now neighbors are worried about other trees that remain on the edge of the retaining wall in Dorothy Erskine Park. Would they withstand repeated storms?

Age and disease are the main factors that cause trees to blow over. Compromises to their structural integrity makes them more vulnerable. In addition, newly-planted trees are more likely to topple during high winds.

No tree is 100 percent safe from excessive wind and rain—even the strongest ones with good root systems can be at risk.

Here’s some information about how to know if trees nearby are at risk of falling.

Requests for proactive evaluation and removal of the trees at the edge of the retaining wall were met with negativity. Neighbors were told it was unlikely because of the “authorizations required.” However, SFRPD did send an arborist for an initial assessment, who determined that the trees in Dorothy Erskine Park are in dire need of maintenance to reduce the risk of additional collapse. They recommended height reduction and limb trimming and a thorough inspection.

Octavio Di Sciullo, one of the homeowners, has been having many exchanges throughout the ordeal with the Natural Resources Manager of SFRPD, who was trying to help navigate the city bureaucracy toward a safe resolution. Likewise, Supervisor Mandelman’s office became involved.

At the suggestion of the City Attorney’s office, one neighbor filed a claim for reimbursement for damages from the City Attorney, only to be denied by the same City Attorney.

In an illogical word salad, the office responded “Your claim was denied because our investigation into the incident found that the tree was located on unimproved land, and that there is no record that the City was notified it was in danger of falling.”

Supervisor Mandelman’s office found that there’s no formal appeals process to challenge the decision of the claims division. The only path forward would be to bring a lawsuit against the city.

The neighbors wonder: Does the city not hold itself responsible for trees located on public land?

They also wonder: Is it the public’s responsibility to assess whether a tree in a public park is in danger of falling?

Earlier this month SFRPD committed to having the trees on the edge of the retaining wall fully assessed by the Urban Forestry Tree Crew. No actual date has been given due to the necessity of first getting all the parks reopened, fallen trees removed, and cleaning up tree damage from the several storms.

In the meantime residents on the 1100 block of Bosworth wait for the inspection—and worry.

Repairs are still underway in three homes and are unlikely to be completed before the end of June. One family will remain displaced for that time.

They wonder if the inspection results will be shared with concerned neighbors.

They wonder if maintenance will be done in time for next winter.

Di Sciullo and his neighbors are living with a lot of uncertainty. “I’m increasingly resigned to the fact that we’re going to have to keep chasing the city to do the right thing for several months,” he says. “But hey, maybe I will be proven wrong!”

 

 

 

 

 

 

Filed Under: Recreation and Parks Department, Trees, Uncategorized

Primary Sidebar

IMPORTANT UPCOMING DATES

2025 Glen Park Night Market poster


Weeding Party
June 21, 10 a.m. to noon
100 block of Arlington at Charles
Join neighbors on the North end of the Cut to keep down the weeds and beautify top to bottom. Tools, lunch and good company provided.



Stop the bleed logoStop the Bleed Workshop
Thursday, June 26, 6-9 p.m.
St. Aidan’s Church
To learn more, click here


Monthly cleanup on the Greenway
First Saturday of the Month (usually)
Click here to learn more


Friends of Glen Canyon’s
Glen Canyon Habitat Restoration
Every third Saturday 9:30 a.m to noon
Sign up here

Subscribe to this Newsletter

Sign Up for Glen Park Association News Updates:

* indicates required

Check It Out at the Glen Park Library

Click the above button or here to see all upcoming Glen Park Branch Library events. Subscribe to the Glen Park Library monthly newsletter to get events highlights in your inbox.

Glen Park Rec Center

Glen Canyon Park sign
Click the above button or here to see
the latest Glen Park Rec Center schedule.


Saturdays 3-4:45 p.m.
Questions? Call 415-239-4007


GP Movie Night Schedule

Renew Your Glen Park Association Membership for 2025

Join the Glen Park Association and help promote our community’s interests. Together, we can secure improvement funds, publicize neighborhood concerns and strive to speak as one voice on neighborhood and city issues.

Membership in the Glen Park Association is only $10 annually and can be purchased online.

Glen Park Association Advertising Sponsors

JE_Digital Small Space Ad
Diamond Heights Digital Ad
GPA Ad- Perez Construction ad 6.27.22 v Glen Park
moroco
Center for Creative Exploration - adult
JE_Digital Small Space Ad
Diamond Heights Digital Ad
GPA Ad- Perez Construction ad 6.27.22 v Glen Park
moroco
Center for Creative Exploration - adult
previous arrow
next arrow
Shadow

Current Weather & Air Quality

Glen Park featured on…

FacebookSF ChronInstagramTwitter

Join the Glen Park Association on Facebook

Comments Box SVG iconsUsed for the like, share, comment, and reaction icons
Glen Park Association is at Glen Park Greenway.
3 days ago
Glen Park Association

A big thank you to @jamieennissf for supporting the Glen Park Greenway by providing sandwiches from #Cheeseboutique for our hardworking volunteers who clean up the Greenway!! And many thanks to Andytown Coffee Roasters - the new café in @canyonmarket for the freshly brewed coffee!

The Glen Park Greenway work party happens on the first Saturday of the month!

Email Nicholas if you’d like to join the Work Party!

greenway@glenparkassociation.org

#glenparksf #sanfrancisco #workparty #glenparkgreenway #community #volunteer
... See MoreSee Less

A big thank you to @jamieennissf for supporting the Glen Park Greenway by providing sandwiches from #Cheeseboutique for our hardworking volunteers who clean up the Greenway!! And many thanks  to Andytown Coffee Roasters - the new café in @canyonmarket for the freshly brewed coffee! 

The Glen Park Greenway work party happens on the first Saturday of the month!

Email Nicholas if you’d like to join the Work Party!

greenway@glenparkassociation.org

#glenparksf #sanfrancisco #workparty #glenparkgreenway #community #volunteer
View on Facebook
· Share
Share on Facebook Share on Twitter Share on Linked In Share by Email
View Comments
  • likes love 11
  • Shares: 0
  • Comments: 0

0 CommentsComment on Facebook

Glen Park Association is in Glen Park.
3 days ago
Glen Park Association

It was Beautification Day in District 8 and Glen Park had its “BOSWORTH PEDESTRIAN BRIDGE BEAUTIFICATION” groundbreaking event!

Many thanks to all who came out and help clear out the ivy, weeds, trash and even an old Christmas edition Coke can!

A big thank you to @sfpublicworks !!

📷: photos courtesy of @bethalbertsoleary

@glenparkschool #glenpark #district8 #beautificationday #bosworthpedestrianbridge
... See MoreSee Less

It was Beautification Day in District 8 and Glen Park had its “BOSWORTH PEDESTRIAN BRIDGE BEAUTIFICATION” groundbreaking event! 

Many thanks to all who came out and help clear out the ivy, weeds, trash and even an old Christmas edition Coke can! 

A big thank you to @sfpublicworks !! 

📷: photos courtesy of @bethalbertsoleary 

@glenparkschool #glenpark #district8 #beautificationday #bosworthpedestrianbridge
View on Facebook
· Share
Share on Facebook Share on Twitter Share on Linked In Share by Email
View Comments
  • likes love 13
  • Shares: 0
  • Comments: 0

0 CommentsComment on Facebook

Blog Roll

Coyote Yipps
Friends of Upper Noe Recreation Center
Glen Park Neighborhoods History Project
Open SF History
Sunnyside Conservatory
Sunnyside History
Sunnyside Neighborhood Association
Tramps of San Francisco
Upper Noe Neighbors

Copyright © 2025 · Metro Pro on Genesis Framework · WordPress · Log in