B09_Amend_0001__2_Pre-Proposal_Conference_Transcripts_0001.pdf

GOGA 336173 - Pre-Proposal Conference-

20261006_113103-Meeting Recording

October 6, 2026, 5:31PM

18m 44s

Murphy, Shellie A started transcription

Murphy, Shellie A 0:06

So, here's the agenda: myself, Justin, if you want to introduce yourself.

DeSantis, Justin 0:13

Yeah, hi, I'm Justin DeSantis. I'm the project manager and the COR. I'm also at the

Denver Service Center in the Transportation Division.

Murphy, Shellie A 0:22

Thank you.

So, I'm gonna go to the next slide.

So that was really quick intros. I'm going to go over to Justin to go over the project itself. Justin, just let me know when you need me to go to the next slide. Oh, go ahead.

DeSantis, Justin 0:40

Sure. Yeah, does this work? I just requested control. Okay, at least I can at least point.

Yeah, so the scope here is a small segment of roadway. It's stabilizing an area where there's some coastal bluff erosion that it partially undermined the

Murphy, Shellie A 0:43

Yeah.

Yeah, go ahead.

It.

DeSantis, Justin 0:59 the roadway. And yeah, funding situation is we have funds available, so we're hoping to make an award. The scope is the retaining wall. It includes a bridge rail, basically a, you know, a type of guardrail that goes on top of the retaining wall, but also tying in to some existing guardrail that's out there. So there's regular guardrail, there's bridge rail, and then the retaining wall, which consists of a cast in place concrete wall that's on cast in place drilled concrete piles. And then there's a grade beam on top of those piles. That is what we're attaching the

Steel Bridge Rail Two.

So, next slide, please.

I don't see it. Yeah, I don't see a way to forward it. So here's the location maps. On the right is the larger context. So yeah, we're just north of San Francisco in Marin

County, the very southern part of Marin County, which is known as the Marin

Headlands. This is inside the park proper, which is Golden Gate National Recreation

Area.

And if you haven't been out here, there is a kind of one-way road system that they've got, because Councilman Road is kind of narrow, and Councilman Road has a couple parts where they're going in different directions, but the projects that you see identified, especially on the left here, I don't know if I can zoom in. Does this work?

Murphy, Shellie A 2:35

I don't think we can zoom in, sorry.

DeSantis, Justin 2:37

OK, can you see my pointer?

Miguel A. Galarza 2:40

Yes.

Murphy, Shellie A 2:40

I can, yeah.

DeSantis, Justin 2:41

Okay, so that part of the roadway there is one way westbound, and that westbound one-way section starts at Hawk Hill. And that's the area where we're anticipating the road closure will occur, because there's a turnaround there. It's almost like a roundabout at the end of that parking lot.

And this is the high point in the road. And that's where we think the road closure for the project will happen. And then the actual project is down the hill and then up on this ridge here where the project identifier is.

Yeah, we're anticipating that section of Rd. would be closed for most of the duration of the project. The contract specifications allow for a closure for the full 180 day performance period if needed. The other thing that I got located on this map is a water source. There's a hydrant there.

That has water available, if that's needed for compaction or other construction purposes.

And the other thing to note is it's one way all the way past the project out to this intersection here.

During construction, we're anticipating that vehicles might, you know, go up the one way because you'll have the whole Rd. closed. So it'll be, you know, yours to do whatever you know you need to do with it to get to get vehicles out there. One thing to note for access out here is you do go through a tunnel.

So if you're coming, you'll have to come on Highway 101 and then you'll take the

Alexander Avenue exit, which is over here.

And then...

You head to the Baker Barry Tunnel, which is shown on the map through here, which is the sizable enough tunnel, but it is it is a one lane tunnel, so it alternates a traffic direction with a with a light. So there's a traffic light that alternates eastbound and westbound traffic.

with about a five minute delay. And then to get up there, you would go west on

Bunker Road, and then you go left up McCullough Road to Conselman, and then you drive out to the site that way. And there's no other way right now while the roads open because of

Councilman is one way westbound from that intersection when McCullough out to this intersection, which is.

I think it called Rathbone, which basically connects to Field Road over here.

So, next slide, please.

And we just add...

Jeremy Konaris, join us, so welcome.

Jeremy Konaris 5:45

No.

DeSantis, Justin 5:47

Um...

Yeah, work hours 8 to 5, Monday to Friday. Right now there's no weekend or holiday work permitted, but it may be upon request.

The Rd. I already covered will be closed during construction.

One thing to be aware of is that there are a lot of cyclists on this roadway, so the road closure will have to be pretty tight to prevent cyclists from sort of just, you know, working around whatever Rd. closure you put in there. I think some sort of sign that says cyclists, this means you, the road is impassable ahead, I think would be advisable because there's just a lot of pressure here for cyclist use. So even a road closure sign may and a gate that would stop cars would probably not be quite sufficient to keep the cyclists out of

The work zone.

So that will be something to keep in mind as you set up your traffic control.

There's no work camps allowed. There's no electrical power. Generators are allowed.

There's no water. And the water is available at that hydrant site I just showed you on the previous slide.

Any questions there?

Miguel A. Galarza 7:09

Yep.

DeSantis, Justin 7:10

Okay, here's the kind of the topo map of the project area. You can kind of see in the topography the erosion bluff, the erosion of the bluff right here that's causing the problem. And you can see the roadway and light line work running east and west across the drawing.

There is a...

trailhead slash, it's like an intersection with a, I think it's an administrative Rd. and a trail that can also be used as a staging area as long as you keep vehicular access open to the gate beyond. So there's some lay down area and this would also

This also works as a good place to park if you have multiple vehicles coming out to the site for inspection prior to the contract award.

Next slide.

So yeah, in-person sites are permitted. There's no park entrance fees. So if you go out there, yeah, please wear a safety vest because yeah, it's open to vehicles and it's pretty narrow. And like I was saying, you can park at that trailhead slash staging area just west of the project site and walk back to it.

if you have more than a couple of vehicles.

Next slide.

So yeah, here's some pictures of the project area.

On the left is a Google Earth image. You can see the bluff there that's eroding into the roadway. And then on the upper right photo, I can explain what happened here.

The road has been getting undermined for a few years now, and I think back in about

2011 or 12, the road was moved over about seven feet to the right so that you have two guardrails. The one, the guardrail on the left was the original guardrail for the original roadway alignment, and then we realigned away from the erosion.

to buy us more time, which worked. So that newer guardrail and curb was part of that realignment that was done. And we just left the old guardrail there in place. But what's happened is it sort of looks like there's a trail in between the two guardrails.

And that's not really the case. There is no special, there is no actual trail. Some people do walk through there, so it has that appearance. But the project intent does not include, you know, having a trail be there after we're done. Basically, we want no trail to be there.

when we're done. So that the left both guardrails will will be removed and that the left one is you know permanently removed and nothing going back.

The new wall and guardrail will be in the same alignment as this right guardrail, because we're anticipating that the sum of this existing guardrail can remain.

You know, outside of the new wall limits on either end.

And then the project also includes replacing this damaged terminal end section you see in the center picture. And that looks like somebody hit it, not too hard, but they hit it hard enough to damage it. So we want that end section replaced.

So maybe what I'll do is...

bring up the plan sheets. Shelly, is that what you would like to do, is just do a quick review of those? Okay, so I can share my screen and I'll pull up the plan.

Murphy, Shellie A 10:55

Joe.

Okay, I messed up sharing. Okay.

DeSantis, Justin 11:03

See, OK, so let me know when you see the plan set.

Murphy, Shellie A 11:08

Yep, we can see it.

DeSantis, Justin 11:09

Okay.

Thank you.

So, let's see.

On demolition, I know a question came up that we're going to publish the answers to probably today or tomorrow about clearing and are there any seasonal limitations on that. There is a little bit of clearing. It's mainly like mowing. I mean, you can see in the pictures, there's no trees or big shrubs.

But there is potentially a small amount of clearing that might occur in the zone.

but it's very minor.

So, let's see, that's just erosion control.

So in the plan.

And.

You can see in dark gray, that's the limits of roadway reconstruction. And then within that, the shorter area, we have the wall construction. So the total length of roadway I think is about 80 feet or so, but the wall itself is

51 feet long.

And that's shown in the bold line mark here.

See, and then.

Just go to the next page. Typical roadway section for that repair, you know, here showing the regular, you know, Midwest Guardrail that's replaced in kind, essentially.

And then this is a detail, you know, showing a thrive beam to Midwest Guardrail connection because there's a requirement to have a thrive beam segment between the guardrail and the bridge rail.

And there's another detail later on in the set that shows the connection between the thrive beam and the bridge rail. Our designers were...

Maybe a little bit lazy, but they're essentially using a lot of existing dot.

details and just highlighting which ones apply to this project. So not the cleanest set of drawings, but that was all we could get.

So...

Yeah, and again, on the left here, this is the Caltrans Midwest Guardrail and anchor detail. So this is for replacing that damaged end section that I showed the picture of.

And then...

See.

Yeah, this is the plan and profile of the wall and the roadway improvement. So you can see in the lower elevation, there are the.

The concrete piles.

Um...

And then here's a detail of the retaining wall section showing the concrete grade beam on top of the piles.

See.

All right, there's some question, I think, about what bridge rail we want to be using.

We want to be using this one, the California SD75, including the bicycle railing on top. I'm sorry.

shown here. So, it's the bicycle railing and the ST75.

And then there's a lot of cross outs here on this sheet. And the reason being is that we do not intend, we're not looking for construction of these end blocks. These are the reinforced concrete wing wall kind of things that they put on larger

Bridge rail systems.

These are for higher speed roadways. This, you know, cars drive about 20 miles an hour on this road. So we don't need the end block. So it'll be a connection. The connection will be bridge rail to thrive beam to Midwest guardrail.

And no, no inbox. So that's what's crossed out on this plan.

Oh.

Yeah, so these are just more details on the on the rail.

or rail details.

And then this is confusing because it's Idaho Transportation Department detail that our engineers use. The only reason they did that is it shows this connection between the thrive beam and the bridge rail, which Caltrans didn't seem to have.

So, that's the purpose of that.

And there's another sheet with more details on those connections.

Yeah, and that's all of the plans.

Pretty small job.

So are there any questions or, yeah, things you would like me to describe in better detail on the plans?

Miguel A. Galarza 16:49

No, Matt, I'm good. I look forward to the answers to the questions.

DeSantis, Justin 16:54

Um, let's see.

Go back. Let's see. Shelly, do you want to share that presentation again? I can't remember what's on there.

Murphy, Shellie A 17:05

Yep.

I am getting there one second.

DeSantis, Justin 17:16

Oh yeah, see it.

Murphy, Shellie A 17:23

So, and I need to remove this because Dean Cooper is not the contract specialist. It is in the solicitation that send me the questions. I did receive questions and I received the answers. I was going to wait until after today's pre-proposal conference to post the amendment, which will...

DeSantis, Justin 17:30

But.

Murphy, Shellie A 17:46 provide that Caltrans.

sheets that Justin was talking about, and then all the questions are answered. So more than likely, it's either going to be later tonight or early tomorrow morning when the amendment will be posted for this information and also the questions and answers.

And that's really it. That's, like Justin said, this is a smaller project, but obviously really important.

That's all I have. Appreciate everybody's time and Justin, thanks for all that detailed information. It's good stuff.

DeSantis, Justin 18:25

Oh, you're welcome. Glad to do it.

Murphy, Shellie A 18:27

Yeah.

And that, appreciate everybody's time and have a great day. Take care.

Miguel A. Galarza 18:28

Matt 18:30

Jeremy Konaris 18:32

Thanks, everybody.

Miguel A. Galarza 18:33

DeSantis, Justin 18:33

All right, thank you. Bye.

Murphy, Shellie A stopped transcription