Got asked to bid a very unusual project

[dodge man]

Maybe it’s just me but I don’t think the log jam in the river will be that tough once you start on it.

Are you sure one of those long reach excavators won’t reach it? I just looked up the specs and some are 70 feet or a little more. They aren’t common but I see them around here, I think mainly for clearing out ponds.

 

[Hay Dude]

Maybe it’s just me but I don’t think the log jam in the river will be that tough once you start on it.

Are you sure one of those long reach excavators won’t reach it? I just looked up the specs and some are 70 feet or a little more. They aren’t common but I see them around here, I think mainly for clearing out ponds.

Not sure I’d want to be perched on a river bank with a dipperstick extended 60-70 feet (if such a machine exists) over a body of water.
One false move and you and the machine are going for a crazy dangerous and expensive swim.

 

[dodge man]

They exist, they look like a regular tracked machine although on the larger size. I do notice they have a smaller bucket on them and the boom seems like a thinner profile. Just Google “long reach excavator “ and you’ll see what I’m talking about. I’m sure it takes a lot more care just because the boom is so long.

 

[paulsharvey]

So, it's Not your problem, or your scope of work; but I think the log jam is only 30% of any flooding issue. I think the sand bar might be the route cause. Now, did a log jam catch sediment and lead to the sand bar? Maybe. Will removing the logs allow natural scour to remove the sand bar? Maybe. Would I be caught excavating a sandbar next to a bridge structure? He'll no, I wouldn't dig that sand bar out, using Your license/insurance/equipment

None of that is related to your scope, and I'm not intending it too be. All I'm saying, is, it's hard to tell a symptom from a cause...

A good stable boat, some safety ropes, and a pole saw will do a lot of work. I Do think it's a min 2 man job though; and not being able to see the bottom 75% of the perverbial iceberg, I would be hesitant to throw a lump sum bid at this job, unless it was Well padded, or had a provision for unforseen circumstances.

 

[Streetcar]

They exist, they look like a regular tracked machine although on the larger size. I do notice they have a smaller bucket on them and the boom seems like a thinner profile. Just Google “long reach excavator “ and you’ll see what I’m talking about. I’m sure it takes a lot more care just because the boom is so long.

The long boom excavator does not have much capacity due to extreme reach. Mostly used for grading and demolition.

 

[Streetcar]

Typically the debris will catch on the pier and
then sand will be trapped in the debris field

 

[Hay Dude]

So, it's Not your problem, or your scope of work; but I think the log jam is only 30% of any flooding issue. I think the sand bar might be the route cause. Now, did a log jam catch sediment and lead to the sand bar? Maybe. Will removing the logs allow natural scour to remove the sand bar? Maybe. Would I be caught excavating a sandbar next to a bridge structure? He'll no, I wouldn't dig that sand bar out, using Your license/insurance/equipment

None of that is related to your scope, and I'm not intending it too be. All I'm saying, is, it's hard to tell a symptom from a cause...

A good stable boat, some safety ropes, and a pole saw will do a lot of work. I Do think it's a min 2 man job though; and not being able to see the bottom 75% of the perverbial iceberg, I would be hesitant to throw a lump sum bid at this job, unless it was Well padded, or had a provision for unforseen circumstances.

I’ll leave it up to the water engineers.
They went to college for this stuff, so they must know everything.

 

[Hay Dude]

I could just see rolling a “long reach” excavator into a beautiful, historic river in front of a bunch of museum visitors. Minimum of water contamination from diesel fuel & oil, and destroying a rented machine, or worst case, drowning in the cab submerged underwater.

Reach is very far and the logs are heavy & waterlogged.

No thanks.

 

[two_bit_score]

I get the general idea of why they want this done. My opinion is they think the log jamb is causing flooding but I’m betting it’s not. I think no matter what you do some is going downstream.

It was going down straem when it got hung up there.

 

[two_bit_score]

I think we are finally coming back around to dynamite as the solution here.