Caltrans and Yolo County Transportation District are proposing to widen a section of Interstate 80 from Sacramento to the Yolo/Solano county line, a project called Yolo 80. This is not just a future project, subject to funding shortfalls and lawsuits, but is actually underway, as Caltrans illegally spends funds for highway maintenance on highway widening. I have written a number of posts on Yolo 80 and managed lanes, but today is just about the bike path that parallels Interstate 80 from the west edge of West Sacramento to Davis.
I am not a commuter or regular rider on the causeway path, but I do average riding it about once a week (I like concerts and beer and Mishka’s tea), and have been doing so for about 13 years.
Caltrans, in the Final Environmental Impact Statement (FEIR), Chapter 2, proposes a number of mitigation measures or policies, including the rehabilitation of the existing bike path, and extension of the bike path to county road 105, where a bicyclist can either use an existing though poorly maintained bike path along the freeway, or surface streets into Davis. In selling the project to the public, Caltrans and Yolo TD have promoted the mode shift potential of an improved and extended bike path, and in fact it seems a major part of the project.
However, this and all other mitigation measures are dependent upon excess tolling revenue, income above that necessary to maintain the section of freeway. It is not at all clear that there will be any excess funds, and Caltrans has made no promises that any mitigation measures will be implemented if there is no excess. Freeway maintenance is expensive!
To take Caltrans at their word, that they really want to do the bike path improvements and extension (if you take Caltrans District 3 at their word, you haven’t been reading this blog), it is instructive to look as the existing path and route.
First, the part along county road 32A, from where the path joins the road, to county road 105, where 32A crosses to the north of the railroad tracks, and the path along the freeway to Olive Drive begins. After a patch of gravel on the shoulder that gets worse over time, the bike ‘route’ is on the shoulder of road 32A, with a posted 55 mph speed limit (which means, in a practical sense, 65-75 mph). There is frequently trash on the shoulder, which is the responsibility of the county, but I have never seen trash picked up or the shoulder swept. This is not horrible for experienced bicyclists, I have ridden it a number of times, but replacing the shoulder with with an actual Class 1 bikeway would be an immense improvement. However, if the path is between 32A and the freeway, the noise and auto pollution will still be horrible. Could it be on the other side of the railroad tracks? Perhaps, but having the path pass under the railroad tracks to the north side would raise the issue of blocked access during flooding episodes, which are not uncommon in the Yolo Bypass (that is why it exists).


The second mitigation is rehabilitation of the existing bike path along Yolo causeway. I think it is useful to see how Caltrans is taking care of the existing path to see how they might rehabilitate it, and take care of it in the future. Preview: They don’t give a shit.
Trash coming off vehicles accumulates on the path. I don’t know how often it is cleaned, but I can tell you it is not often. Maybe twice a year. A lot of the trash eventually gets blown off into the Yolo bypass rather than getting picked up. This Wednesday, there were large accumulations of leaves shed from the trees along the path.


The path itself has not been maintained in the 13 years I’ve been riding on it. There are cracks that have been there so long tree sprouts are coming up in them. The asphalt parts of the path, where the path is on fill rather than bridge, are becoming unrideable. Many of these cracks are parallel linear, presenting the danger of wheel capture and falls for narrow-tired bikes.




When it rains, the path has large and persistent puddles. It was not well designed to drain. Note that the photo below was two days after the rain, and there is still standing water.

The path has been narrowed in several places for construction of the widened section of the freeway. This makes everything worse, removing the width that allows bicyclists to navigate around hazards.

There is a fence along the concrete barrier between the freeway and the path. This fence is not only intended to keep people from crossing (though it does have gaps from time to time, presumably to allow people from disabled motor vehicles to exit the freeway), it protects bicyclists on the path from flying debris from cars. Not only the trash they lose, but actual car parts. You can find a variety of car parts along the path, and I’m sure far more is prevented from getting onto the path by the fence. Cars lose a lot of parts! But construction has removed the fencing along a number of sections. In some cases there is wood fencing on top of the K-rail temporary barriers, but it is flimsy and only half the height of the fencing. And in several locations, there is no fencing at all, it has simply been removed. For no reason, so far as I can see.

At the western end of the causeway section, where the path turns north to connect to road 32A, there should be a permanent barrier to make sure that bicyclists don’t continue onto the freeway. But the barrier, created with leftover materials, is frequently damaged, probably by construction crews, and has several times been missing completely. Imagine riding here at night!

What Does It Mean?
It means that Caltrans cannot be trusted to construct, rehabilitate, or maintain a bike path along the route of Interstate 80 through the Yolo Causeway and into Davis. They are lying that they have, they are lying that they will. Do not, under any circumstances, trust Caltrans District 3 to serve or protect bicyclists. This is criminal neglect by Caltrans.





