When ADA Compliance Runs Afoul of Seismology

Seismologists were recently upset by the loss of a curb at the corner of two streets in Hayward, California that displayed the power of the Hayward Fault. The city had repaired the curb to provide ADA access to the sidewalk and street.

1 minute read

July 10, 2016, 11:00 AM PDT

By James Brasuell @CasualBrasuell


Hayward Fault

The great power of the Hayward Fault was visible on the corner of Rose and Prospect streets in Hayward. | missyleone / Flickr

Rong-Ging Lin II reports on the outcry over a misunderstanding in the city of Hayward, California. Located there for many years, at the corner of Rose and Prospect streets, was a sidewalk pulled apart by the seismic activity of the Hayward Fault. According to Lin, the corner was considered by seismologists  as "a kind of Holy Grail, perfectly illustrating the seismic forces at work underneath this Bay Area neighborhood."

However, in early June, a city crew fixed the sidewalk, provoking the ire of seismologists. According to Kelly McAdoo, assistant city manager of Hayward, city crews did not realize that they had a seismological curiosity on their hands when they performed the ADA retrofit of the sidewalk. Nothing can be done about restoring the seismic timeline to the curb, but McAdoo acknowledges that the city will be happy to talk with seismologists about other potentially significant sites around town.

CBS San Francisco also covered the news about the contested curb in a television news segment.

Tuesday, July 5, 2016 in Los Angeles Times

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 30, 2025 - Diana Ionescu

Close-up on Canadian flag with Canada Parliament building blurred in background.

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?

As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

April 28, 2025 - Benjamin Schneider

Hot air balloons rise over Downtown Boise with the State Capitol building visible amidst the high rises.

The Five Most-Changed American Cities

A ranking of population change, home values, and jobs highlights the nation’s most dynamic and most stagnant regions.

April 23, 2025 - GoodMigrations

People biking along beach path with moored ship in San Diego, California.

San Diego Adopts First Mobility Master Plan

The plan provides a comprehensive framework for making San Diego’s transportation network more multimodal, accessible, and sustainable.

1 hour ago - SD News

Sleeping in Public

Housing, Supportive Service Providers Brace for Federal Cuts

Organizations that provide housing assistance are tightening their purse strings and making plans for maintaining operations if federal funding dries up.

2 hours ago - KSL

Conductor walks down platform next to Amtrak train at station in San Jose, California.

Op-Ed: Why an Effective Passenger Rail Network Needs Government Involvement

An outdated rail network that privileges freight won’t be fixed by privatizing Amtrak.

3 hours ago - Streetsblog USA

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.

Building Inspector

Village of Glen Ellyn

Manager of Model Development

Central Transportation Planning Staff/Boston Region MPO

Senior Planner

Heyer Gruel & Associates PA