Guaranteed to Meet Code & Last!

CALIFORNIA TRUNCATED DOME COMPANY

Truncated Domes Are Now REQUIRED to Be Yellow in Color

CTDC is The Most Cost-Effective Solution

One Call Can Ensure You Are Compliant

The UBC & California State regulations require that many areas on private property such as curb ramps and cut-outs, wheelchair ramps, accessible routes, entrances, and paths of travel feature yellow truncated domes to serve as a detectable warning to pedestrians.

What Are Truncated Domes?

What Are Truncated Domes?

Federal & State ADA laws require that truncated domes are installed in specified areas to alert blind, partially sighted, and other pedestrians that they are transitioning from a pedestrian area to a space shared with vehicles. An example would be leaving the sidewalk to enter the street or a parking lot. They provide a yellow, tactile warning system in a distinct pattern that can be detected by a cane or felt underfoot.

Installation & Retrofitting

INSTALLATION & RETROFITTING

We provide and install truncated domes that are guaranteed to meet ADA and California Code and that are built to last!

ADA LAWS & REGULATIONS

ADA LAWS & REGULATIONS

At California Truncated Dome Company, we guarantee that our work is compliant with both the Americans With Disabilities Act (ADA) and California Code.

ABOUT CALIFORNIA TRUNCATED DOME COMPANY

Video Transcript

California Truncated Domes Company
Get Compliant!
Removals.
ADA Compliant Installation, Retrofitting, Certification.
ADA & California Compliant.
Don't Wait For a Lawsuit!
Ask Us About Truncated Domes.
We Have Got You Covered.
Call Today!

Why Choose Us

California Truncated Dome Company is a division of Protrk Construction, a leader in the ADA industry

Our primary focus here at California Truncated Domes Company is handling all of your truncated dome needs. Whether that means removing or replacing non-compliant domes at an existing property, or installing a brand new set we can coordinate the entire project making it stress-free and cost-effective. This is what we do. We are experts in this particular area of ADA construction and will make sure your truncated domes are in full compliance with ADA guidelines and laws. We have creative options to bring your property into the current code requirements without breaking the bank.

  • ADA and California Compliant
  • Quality and Precision
  • Superior Service and Controlled Cost
  • Timely Completion and Delivery

SOLUTIONS

ADA CONSTRUCTION EXPERTS

ADA CONSTRUCTION EXPERTS

We ONLY do ADA work - specifically work related truncated domes. We are at the leading edge of the latest ADA & Califonia laws & ordinance.

KNOW THE LAW!

KNOW THE LAW!

This is more than just a California Code lawsuit. This is federal law! If you are not compliant the Federal Government will actively sue you!

BOOK A COMPLIANCE ANALYSIS

BOOK A COMPLIANCE ANALYSIS

Don't wait for the lawsuit. Call us today and book a FREE compliance analysis visit today and find out if you need to upgrade your truncated domes.

TRUNCATED DOME SIZE & SPACING

TRUNCATED DOME SIZE & SPACING

Truncated domes must be yellow & have a base diameter of between 23mm & 36mm. Regulations also state that the top diameter is between 50-65% of the base diameter. Keep an appropriate base to base spacing of 17mm between domes.

PLATFORM EDGES

PLATFORM EDGES

Where truncated domes are installed at platform boarding edges they must be 610mm wide and extend the entire length of the public area of the platform.

NEED MORE ADA CONSTRUCTION?

NEED MORE ADA CONSTRUCTION?

For additional ADA construction work, our parent company Protrk Construction is a dedicated ADA contractor serving San Francisco and the Bay Area.

READ MORE

PROJECTS

Non-Compliant Grey Truncated Domes
Non-Compliant Yellow Truncated Domes
Non-Compliant Truncated Domes
Non-Compliant Grey Truncared Domes at Curb Cut
ADA & California Compliant Truncated Domes
Compliant Yellow Truncated Domes
Compliant Truncated Domes
ADA Compliant Yellow Truncated Domes at Curb Ramp
Installing ADA Compliant Truncated Domes

CURRENT ADA REGULATIONS

The ADA states truncated domes must be yellow & have a minimum base diameter of 23mm & shall not exceed 36mm. The top diameter of the dome shall be a minimum of 50% of the base diameter, and shall not exceed 65%.

ADA & California Compliant
Quality & Precision
Controlled Cost
Timely Completion
1
Removal of Non-Compliant Domes
2
Installation of New Truncated Domes
3
Retrofitting Truncated Domes
4
Visual Contrast
5
Compliant Dome Size
6
Compliant Dome Spacing

TESTIMONIALS

I'm working with Mike Schaeffer with Protrk to comply with the 2019 San Francisco Mandatory ADA Access ordinance on two commercial properties I manage. Mike is responsive, knowledgeable, thorough, easy to work with, and welcomes feedback from his clients. I highly recommend his services.

Marc Malardino, RPA