Ask State Senator Glazer, Assemblymember Bauer-Kahan and Assemblymember Grayson:

 “Fund the 77 Bike Turnout Project #2019-05 in Mount Diablo State Park” as soon as possible to prevent a serious injury or fatality.

Use the official links below to contact elected representatives ! 

Sample Letter below, use as needed !

1. State Senator Steve Glazer: to send comments use this link  (925) 258-1176

2. Assemblymember Rebecca Bauer-Kahan: to send comments use this link (925) 328-1515

3. Assemblymember Tim Grayson: to send comments use this link (925) 521-1511

Sample Letter Below: Cut and Paste as Needed!

Ref: “Fund 77 Bike Turnout Project #2019-05 in Mount Diablo State Park” to prevent injuries or possible fatalities.


Near-Miss collisions between motorists and cyclists on Mount Diablo occur repeatedly every day on the roads of Mount Diablo.  On a typical weekend day, up to 500 drivers share these roads with approximately 700 cyclists. The annual number of cars, trucks and bicycles visiting the Park may now number more than 400,000, and according to Park staff, “the majority of vehicles on Mount Diablo are bicycles.”  Motor vehicles travel faster uphill than cyclists; they want to pass.

But to pass a cyclist, a motorist must cross over the double-yellow centerline and into the downhill lane.  Not only is this act illegal, it is dangerous.  When it happens on one of 300 blind curves, it can lead to a Near-Miss or an actual collision with a downhill-bound car or bicycle that is not seen until it is too late.

After analyzing information acquired through Public Records Act requests, including over 200 Traffic Collision Reports, as well as surveys of motorists and cyclists, and literally hundreds of videos filmed in the Park, we believe that it is not a question of if, but whenthe next Bike vs. Vehicle Collision will occur.

The next collision will most likely occur at or near a blind curve and result in a serious injury or a fatality.  According to Park leadership and supported by the responses in our Motorist Surveys, “most motorists entering the Park have never been to Mount Diablo before and are unaware that they will share the narrow, winding roads with hundreds of cyclists.” Cyclists completing a recent survey reported a total of 336 unsafe passes on blind curves in one day!

Bike Turnouts were created in 2016 through a joint effort of Mount Diablo Cyclists and State Parks to allow motorists to pass uphill-bound cyclists. Three Pilot Bike Turnouts were initially installed. These were determined to be effective, and ten more were constructed in the following year.

However, Mount Diablo Cyclists and State Parks have now completed the MDSP Bike Turnout Project, officially signedon March 18, 2019. Seventy-seven additional Bike Turnout locations were selected based upon past collisions or the perceived likelihood of a collision occurring.

Unfortunately, and despite the fact that these 13 Bike Turnouts are used daily by cyclists, no additional Bike Turnouts have been added since 2017. State Parks budgeted only $40,000 for 3 to 4 bike turnouts in FY 19/20, promising to install them by April or May 2020. At that rate, it will take nearly 20 years to complete the project. That lack of commitment to improve safety is absolutely unacceptable.

These Bike Turnouts are supported by local elected leaders, Park staff and volunteers, the California Highway Patrol, Bike East Bay and other cycling organizations, and a petition with over 3,300 signatures. Surveys of motorists and cyclists and video images all support the potential of these new Bike Turnouts to significantly and permanently reduce the possibility of collisions, injuries, and fatalities.

In order to prevent future serious injuries or fatalities, it is urgent for 77 Bike Turnout Project #2019-05 in Mount Diablo State Park to be funded as soon as possible.