Notching Jetties

post the link then numbnuts

 

Shared it on my FB wall... Will try and spread the word as much as possible. This is BS and needs to be stopped. React people!

 

The jetty notching is just as pointless and enraging as "replenishment". It's incredibly upsetting watching the best spot in Moco get covered in sand this week. A spot that has managed to not get replenished recently is finally getting covered. Now they are going to destroy all of deal with the jetty notching. WTF. By June there's gonna be 200 dudes at your last favorite local wave. People suck.

 

Notch it,
replenish it,
sh!t on it,
f~ck it.

 

notching the jetties is honestly a smart move if they want to keep those beaches and the million dollar homes on it. there's a good deal of research showing that groins adversely affect the longshore flow of sand/water and cause unnatural errossion. most of those jetties in particular are huge and have a more pronounced effect than smaller groins.

for example look at the beach right to the north of the roosevelt ave access. that beach and the beach immediately to the north have suffered greatly from that large groin.

 

Really? Of coarse it is.

 

Kudos for raising awareness for N J surfing community, a post that has real life merit over entertainment

Army Corp Reseach and Development Center in Vicsburg Mississippi does all the science based research for all regions of ACOE, I believe MOCO is in New York Region. Army Corp ERDC has done the science on notched groins although their library contains 300,000 studies have not put my fingers on the right PDF yet while have found a picture of Lab study of a notched groin. Just an FYI, your endeavor is not only with ACOE but also with State of New Jersey Coastal Management ( see link)

So far it seems notched groins not new to New Jersey coastline due to earlier white papers/studies dating back a few years. The goal of notched groins is to allow longshore transport of sand through the swash zone. Maybe other Jersy Boys can chime in on other existing notch groins effects on surfing.

http://www.nj.gov/dep/shoreprotection/structures.htm

http://coastalengineeringmanual.tpub.com/PartV-Chap3/PartV-Chap30081.htm

http://www.nj.gov/dep/shoreprotection/images/sp_28.jpg

http://chl.erdc.usace.army.mil/Images/8/1/0/fig6_notched_groin_400x300.jpg

Above - Army Corp ERDC picture of notched groin in lab study, see notch in middle of groin so study was done

http://www.jstor.org/discover/10.23...2&uid=70&uid=4&uid=3739256&sid=21103611082327

http://www.nan.usace.army.mil/Porta...oBI/EtoLA/Deal_HSLRR_Cost_Appendix_2-4-14.pdf

http://eurekamag.com/research/019/484/movable-bed-model-investigation-groin-notching.php

http://eurekamag.com/research/018/4...ediment-transport-measured-notched-groins.php

 

Without the technical jargon, "notching" basically means ripping out the jetties so the replenishment workers don't stub their toes while making sandcastles where we used to do bottom turns. I've officially given up on people. Especially when huge amounts of money are exchanged. Replenishment has repetitively shown that it doesn't work. But people keep throwing money at it. I talked to a female replenishment worker the other day in long branch. She was incredibly nice. Making it harder to hate her. But not impossible.

 

Not n NJ anymore but what a shame this is. I saw my childhood break of Sandy Hook go from being a mile of some of the best jetty breaks on the east coast to a barren pile of sand. Just stop for gods sake.

 

What's weird is that it seems a lot of the studies are throwing groins and jetties into the same category even though they are two completely different animals. What the studies hardly ever point out is how difficult it is to get empirical data because each location has completely different and unique variables. But hey, no self-respecting scientist or civil engineer would admit they haven't come close to pinpointing effective solutions... that would mean their government funding might dry up.

Case-in-point: The Masonboro Inlet jetties here in WB. In my lifetime they have been extended twice and reinforced a handfull of times to no real ill effects on either WB or Masonboro. Actually, they are responsible for the shoaling off the N. end of Mase that creates the awesome wedgy peaks Mase is famous for. WB gets replenished every few years, so the beach grows and recedes over time... sometimes it grows again on its own. Mase does the same thing, but doesn't get replenished. Essentially, the MBI jetties don't have any ill effects on erosion and create the safest and most stable inlet in our region.

Maybe the "scientists" should look a little closer at why these jetties seem to work while others do not. Unfortunately that might lead them to a real solution, which = no more funding. So, instead, they keep recycling the same old ineffective chitt...$$$$$$$$$$$$$$$$$$$$

 

that's exactly why I do not like nj.it sucks as a surfer in jersey,u have to wait all year for a few good swells,and when the ocean cooperates,man does not!!!

nothing worse than seeing a spot u surfed all winter get buried.now they want to cut the jettys.I don't surf deal,but I would still fight to protect the spot and jettys.10yrs from now,theyd pump so much sand on to the beach,your going to need 4 wheel drive just to get to the water.no more surf checks from the lot

 

yes sandy hook used to be the best spot in nj.I think they killed the jettys in 94,not sure.soon im bringing a shovel to the beach and building my own sandbars

 

If they are actually talking about ripping out jetties, then that's completely different concept than notching them. Normally, notching a jetty means creating a low spot somewhere midway along a jetty to allow a bit of sand to flow over the jetty, so some sand reaches the downdrift side of the jetty instead of having to flow all the way around the seaward end of it. How it affects surfing depends on the specifics of the location.

And Erock is right. Jetties and groins are different things. Jetties are at inlets to stabilize the sides of it, groins are similar structures but built in beaches for erosion control, not at inlets for inlet stabilization.

 

Your example is not good, of all the towns at the beach I think deal was affected the least, I helped clean up from the day after the storm on, for a month, from Sea Bright to Deal. The studies you look at were put out by the army core and the govt, i call BS on any of those groups reports. Notching is a waste of tax payers money they did it in Belmar and it had no effect except creating more dangerous rip currents. Go swim there when there is current tell me what you think. Notched Jetties = slanted beaches Un-notched = straight niether of these methods magically adds more sand to the beach. Example, look at the satalite view on google maps. As far is sand loss or gain it did nothing. When are people going to start listening to the Marine biologists who did the studies on the beach replenishment vs jetty only to find that niether is effective. I think that both repleniushment and Jetties are a way to make the army core of engineers seem important while giving corrupt govt officials who are secretly teamed with the companies hired to do these tasks, a way to skim federal money. I have lived at the beach in various locations in NJ and no matter what they do the sand is never that different. In the grand scheme of things 100 yards of sand isnt going to mean anything when the big hurricane comes, If no one learned that from sandy either the group doing research is stupid or its not the homes they are trying to save its thier source of money. When there is 10 feet of water on top of your sand or your notched jetties or un notched jetties they dont do anything.

 

All of the sand from replenishment projects drifted north burried all the jetties in Monmouth Sea Bright and Sandy hook. The Jetties are still there they are just under the sand. The sand also filled in the cove, I miss it when it was good, I think a tear just came to my eye.

 

If Jetties stop sand flow why is all the sand they have pumped from barnegat inlet north in the last 20 years all ending up on sandy hook? Look at google maps zoom in to north pond at the tip of the hook. This used to be the shore break 20 years ago all that beach you see wasn't there til the sand started pumping.