Fix the pumps

Friday, June 03, 2011

Debris, Part 5

Part 1
Part 2
Part 3
Part 4
Part 6
Part 7
Part 8
Part 9
Part 10
Part 11
Part 12
Part 13
Part 14

The record in dealng with debris has been mixed throughout the Corps' projects. Let's look through the system, courtesy of the inspection reports prepared for the Southeast Louisiana Flood Protection Authority - West.

WBV-12


Some projects appear to have moved past the problem. Earlier, we noted WBV-12 (a project titularly awarded as task order to the much larger West Closure Complex contract. The WCC prime contractor is Gulf Intracoastal Constructors, which is actually Traylor Brothers and Kiewit. However, WBV-12 was actually immediately subcontracted to Phylway, who we will find out is behind many of the debris-laden projects.) having debris problems dating back to the beginning of the project last fall all the way through March of this year. From the April 4th report on March 28, 2011 inspection:

"Debris was noted in several areas between the sheet pile driving operation and the first location of embankment work. As debris was found the USACE inspector placed debris in the back of his pickup truck. Between approximate stations 170+00 and 175+00 SLFPA-W noted debris in surface being covered by current lift and in material being placed, no personnel was monitoring area for debris. SLFPA-W continued to approximate station 138+00 were the second location of embankment work is ongoing. Debris was noted in the surface being covered by current lift as at the previous area of embankment work. The truck spotter did remove debris as SLFPA-W began taking pictures.
Overall I believe that since the current lifts are being placed on a surface containing debris, then how much debris was not removed?"

The debriefing summary also noted:

"At the second location the truck spotter began picking up debris when SLFPA-W was photographing debris."

Subsequent inspection reports have better news:
May 3, 2011 report of April 25, 2011 inspection:

"The debris found today was excavated from the flood side along the slurry trench installed. This material is to be hauled off and replaced with compacted material. Overall debris issue has diminished to nil. Truck spotters still utilized to remove during dumping operation. USACE inspectors to insure that the current method of removing debris continues."

And the May 23, 2011 report of the May 16, 2011 inspection:

"Debriefing:
No issues at this time. Debris no longer an issue, minimum amount was found during today's visit."

That's good. But the question asked in the report on the March 28th inspection is still hanging out there:

Overall I believe that since the current lifts are being placed on a surface containing debris, then how much debris was not removed?"

Moving along, we find other projects are still dealing with debris.

WBV-14a.2

WBV-14a.2 is a 3 mile long hundred year levee project on the west bank of the Harvey Canal:


The lead contractor is Purnell Construction, though a company named Hill Brothers also claims it. It's likely Hill Brothers is subcontracted to Purnell.

Before moving on to the debris problems, I must admit to some confusion regarding the scope of this project. Why is the Corps building a 100-year project behind the West Closure Complex (WCC), when they claim that the WCC is supposed to take all these floodwalls and levees out of the line of fire of a hundred year storm? In fact, there are two other 100-year projects immediately to the north and south of WBV-14a.2 (WBV-38.2 and WBV-23), both of which also lie behind the WCC. This seems like money that could have been better spent elsewhere, using the Corps' reasoning. After all, many of the other projects behind the WCC - including the projects just across the Harvey Canal from these - are not up to the 100 year standard, so why do these three get that treatment?

Anyway...

WBV-14a.2 has had reports of debris problems through May. During a May 5th inspection documented in the May 9, 2011 report, there was this:

"Debris in current material being placed"

This is followed by 3 pages of debris pictures:


The report also notes:

"Debris in material previously placed and being topped by current lift. SLFPA-W noted two man crew picking up debris."

So debris was getting buried. That's very bad. Also, a two man crew is too small for such work.

The above comment was followed by another 7 pages of debris pictures:


From the pictures, it is clear the debris is not just organic, but also includes rocks or some other inorganic material.

Understandably, SLFPA-W came back just about a week later. On May 13th (documented in the May 16, 2011 report), this is what they found:

Overall review of site visit:
USACE inspector [Wade Lucas] expressed that the contractor has stepped up debris removal from a two man crew to a seven man crew along with a crew removing debris at the pit (River Birch). Once the material is on site the material is picked through three times before the next lift is installed, first time during dumping and spreading operation, second time during the disking process and compaction and the third time during disking before placing the next lift."

As I said, a two man crew was too small.

Also note that a River Birch pit is mentioned again. We heard about debris coming out of one of the River Birch pits on WBV-14c.2 as well.

The report continues:

"Reviewed area between approximate stations 959+00 and 972+50; 6th lift has been placed. The amount of debris is considerably less in the 6th lift than noted previously during the placement of the 5th lift.

Reviewed area between approximate stations 935+00 and 951+00; 1st lift has been placed. Debris crew picking up debris in this area during visit. Several large pieces of wood was noted along with one large rock. Area also contains a considerable amount pieces of wood. The amount and size of debris found is substantial to warrant concerns that the contractor should put forth more effort in the removal of debris in this area."

Let's stop right here and read between the lines. The report starts with the Corps inspector's rather glowing description of the contractor's (that's Purnell or Hill Brothers) efforts at debris removal. Then it moves on to the reality that shows those efforts aren't worth very much.

If SLFPA-W inspectors are finding all this during weekly inspections, what exactly are the Corps folks doing when the SLFPA-W isn't there, especially during the months when SLFPA-W wasn't devoting its limited resources to stepped-up scrutiny of such projects? We've got dozens of reports of SLFPA-W inspectors finding large bunches of debris through many projects and over many months. How is this possible? Isn't the Corps paying its contractors and its Quality Assurance/Quality Control folks to keep tabs on this? Are the Corps folks and the contractors really acting on behalf of the public, or strictly on behalf of the contractor?

The SLFPA-W has similar concerns, as the report notes:

"Although the contractor appears to have stepped up debris removal operations, SLFPA-W has concerns with lifts 1 through 4 in area placed before the additional debris removal efforts were in place between approximate stations 959+00 and 972+50. A substantial amount of debris was noted in the 4th lift in the last report, which in may still exist.
SLFPA-W has concerns that with 250 plus trucks per day bringing in material and the amount noted today; the contractor needs to put forth a greater effort in monitoring and removing of debris."

Translation: SLFPA-W believes this entire new levee may be shot through with debris, and it is the fault of the contractor and the Corps. The SLFPA-W inspector includes 6 pages of debris pictures to make his point.

That brings us to the most recent inspection of WBV-14a.2, which took place May 23, 2011 and was documented in the May 30, 2011 report:

"SLFPA-W observed during today's visit that the contractor's nine man crew with supervision removing debris from material on site. The crew was working ahead of the material being placed and appeared to be removing all of the debris. SLFPA-W and USACE reviewed area between the picking crew and the material being placed and found it free of debris."

So they went from two men, to seven men, to nine men. What were they doing for the months before the SLFPA-W started zeroing in on them? Likely nothing.

Continuing with the report:

"Reviewed area between approximate stations 959+00 and 972+50; lift 7 has been placed to an elevation 1.0'. SLFPA-W and USACE reviewed approximately 600' of this area and found large pieces of wood debris. Later the contractor informed SLFPAW that the area has been disked but the debris in this area has not been removed.

Reviewed area between approximate stations 935+00 and 951+00; the 3rd lift was being placed and disked between approximate stations 935+00 and 941+00. This is in the area that the debris crew was observed picking up debris. The current material appeared to contain less debris but several large pieces were noted and the contractor removed them immediately."

The SLFPA-W wraps it up with this:

"SLFPA-W reiterated has concerns between approximate stations 959+00 and 972+50 with lifts 1 through 4 that were placed before the additional debris removal efforts were in place. A substantial amount of debris was noted in the 4th lift during placement of the 5th lift in the 05-May-2011 report, SLFPA-W needs verification that this debris has been removed."

I seriously doubt they will get such verification without tearing the levee apart.

Here's a sample of the debris SLFPA-W found on May 23rd:


By the way, this project doesn't look anywhere near complete, despite the Corps saying it was 100-year ready.

WBV-14b.2

WBV-14b.2 is a 3 mile long stretch of levee between an area near Lapalco Blvd to a point near where Highway 45 runs alongside the west bank levees. Here's the exact location:


It's a zig-zag section of levee. The project involved mostly shifting the centerline of the new levee toward the protected (land) side from the existing levee. Some sections of the new levee would simply be built directly over the existing levee. The new levee would be built with dirt from both borrow pits the existing levee, the same as adjacent project WBV-14c.2.

The borrow apparently came from one of the River Birch pits. The SLFPA-W inspector noted in the January 18, 2010 report on his January 13, 2010 inspection:

"The contractor is using River Birch as their borrow source."

This report was long before SLFPA-W became concerned about debris. However, about a year later the situation would be far different. With the SLFPA-W noticing copious amounts of debris on projects all over the west bank, they arrived at the WBV-14b.2 worksite on December 9, 2010 to find this:

"Debris was found throughout the flood side of levee and heavy in the berm area. During inspection the contractor began pushing embankment material from the protected side over the levee to the flood side. SFLPA-W representative noticed that dozer working material to the flood side was burying debris, as noted in issue #8. The protected side contains some debris but not as heavy as the flood side. Contractor had no one picking up debris in "area of work".

That's about as bad as it gets. The report contains 26 pages of debris photos like these:


We don't know if the debris came from the existing levee or from the River Birch pits. Either way it's not good.

The report also contains pictures of the contractor burying the debris, as described above. The debris appears to be large sheets of rusty steel:


Considering the contractor (Creek Services) was willing to do this in full sight of the inspectors, it's a good bet this had been going on the entire year the project was under construction up to that time. It's too bad SLFPA-W only concentrated on the debris problem in December, though, because the project was nearly done at that point.

Subsequent reports as the project wound down noted some progress, albeit mixed. The December 28th report of the December 21, 2010 inspection said:

"Very little debris was found on flood side of levee from Sta.0+35 to Sta.20+35. A 3 man crew with a bobcat was walking the entire levee area and picking up unsuitable material. Corps inspector assured us that this type of action would be continued throughout entire job."

After reading as many of these reports as I have, I have learned to be very skeptical when I see the words "Corps inspector" and "assured" in proximity. And as expected, an inspection on February 23, 2011 of the mostly finished levees turned up debris in the final product:

"23-Feb-2011 - The first day of inspection between approximate stations 164+92 to 74+65 revealed debris, ruts and low areas. It was apparent that some of the ruts were caused by others.
Contractor called out a crew to begin picking up debris. Crew picked up debris that SLFPA‐W crew flagging; no other debris was picked up by crew. SLFPA‐W (Roark, Muscarello), USACE (Major Giles, Channing) picked up debris in areas of flags and placed at flags as depicted in pictures."

There was still debris during another inspection on March 29, 2011 and April 1, 2011, but it was minimal:

"Overall debris found was within limits of specifications. Only one piece of wood was found of a substantial size and a minimal amount (1/2 dozen) of small concrete pieces were found, contractor removed all debris immediately. During inspection SLFPA-W noted contractor was picking up debris that was less than size limits set in specifications."

It's probably too little, too late.

WBV-15a.2


Debris problems on this 3.75 mile long levee project (contractor: Phylway) near Lake Cataouatche date back months, and possibly longer. In October of last year, SLFPA-W inspectors noticed rocks and other debris in completed sections of the levee. During an October 19, 2010 inspection, they noted:

"Issue: Unsuitable material found on levee from Sta.320+00 to Sta.330+0. Rocks are localized on floodside of levee."



SLFPA-W inspectors continued to find debris during the October 25, 2010, November 4, 2010, and November 8, 2010.

On December 21 and 22, 2010, things seem to get more serious. The inspection report for this two day visit indicates it was the first time SLFPA-W inspector David Roark had come to the site. His inspection report notes the debris problem in much more complete terms:

"21-Dec-2010 - SLFPA-W met Coe representative (Paul Williams) at the Coe site trailer. Reviewed project progress and both parties proceeded to site.
Overall review of inspection, some debris was found and Coe representative called contractor to site area of debris. Continuing with project inspection the contractor joined us; debris was immediately picked up as found during the inspection tour. Both the Coe representative and the contractor were concerned with the amount of debris found in area of finished grade berm (protected side) which basically filled the back of the Coe representative's truck (as depicted in photo P1000040)."

The Corps inspector and the contractor were concerned. Right. More like finally confronted. Here's the photo of the back of the Corps inspector's truck, filled with junk pulled out of the levee:


I'm not exactly sure of the workflow on a levee project. However, I believe dirt is initially delivered to piles in a "stock yard" on the site. Then I think it is taken to a flat area where it is laid out and "processed" before it is placed on the levee. Theoretically, the "processing" step should get the debris out, but it really shouldn't be in there in the first place.

This report includes pictures of the stock yard in a section noted as an "Issue." Specifically, the report says, "Unsuitable material in dirt needs to be picked out after dirt is spread," implying the debris in these photos is destined for the levee. Take a look at all the junk in this material:


If this is what is coming out of the borrow pits, and if the contractor and Corps inspectors are as slack about removing debris as the SLFPA-W inspectors lead us to believe they are, it's no wonder junk is making it into the levees. These stockpiles almost look like more rock than dirt.

Back to the inspections. Debris was again found during the January 4, 2011 inspection. That seemed to have been the final straw, because the next inspection - on January 20, 2011, the SLFPA-W sent three SLFPA-W inspectors and the Corps sent a Major. The very throrough inspection generated another truck bed full of stuff:


Afterwards, everyone seemed to think things would be okay:

"Debriefing: It was agreed that the debris concerns still exist, but the actions that the USACE and contractor have taken appear to be resolving the debris concerns.
Actions taken:
- Truck spotter is removing debris as trucks dump.
- Contractor's crew inspects for debris again, photos and removes any debris found.
- USACE inspects area again for any debris, debris found contractor removes."

But - as with so many other projects - the debris kept showing up. From the February 21, 2011 inspection:

"Reviewed areas of currently placed fill between approximate stations 465+00 and 468+00 along with section between stations 340+00 and 325+00. Some debris was found between stations 340+00 and 325+00 on the protected side as noted later in report by photos. Contractor stated lift was just placed and assured that the next step is to remove debris."

More assurances that debris would be removed. After a while, they just don't wash.

So what was reported during the April 6, 2011 inspection should not come as a surprise:

"Reviewed flood side of project between approximate stations 317+00 and 377+00. Debris was numerous through out this area in the berm. Most debris found was rocks and concrete; all of a considerable size."

And the SLFPA-W inspector's view should also be no surprise:

"Debriefing was held with USACE and the contractor. The amount of debris found along the flood side berm and haul road is still a considerable amount. During the past several site visits debris along the flood side berm has been located and removed. SLFPA-W believes the amount of debris found should have decreased in this amount of time and has requested that the contractor focus on debris removal before the next SLFPA-W site visit. Contractor agreed and is also attempting to schedule to begin seeding operation at the end of two weeks or the beginning of the third week from today. Seeding operation will cover the protected side berm along with both sides and top of the levee. Contractor to harrow areas before seeding and follow with a crew to remove any debris. USACE will notify SLFPA-W once harrowing begins."

How many times do the contractor and the Corps inspectors have to agree that debris is a problem, and then have more debris pointed out during the very next inspection, before something serious is done?

Unfortunately, this is the last report we have from this project. However, I think you get the point.

River Birch pits (+ Phylway?) = debris

Something starts to emerge from these reports: the River Birch pits appear very, very bad. We've seen the possibility of it in the WBV-14b.2 reports above, we've seen it mentioned definitely in the WBV-14a.2 reports - also above - and we've seen it mentioned in the WBV-14c.2 reports earlier. Now it shows up in the most recent inspection report from project WBV-14e.2.

WBV-14e.2 is a levee project across from the West Closure Complex, on the Gulf Intracoastal Waterway:


In the May 27th report on the May 26, 2011 inspection of WBV-14e.2, we read this:

"- Reach 3C (approximate stations 768+50 to 799+35), existing levee has been capped to elevation 11.0'. Contractor was placing embankment on protected side berm at approximate Sta.787+50. Contractor began hauling in material from the River Birch pit on Thursday 5/25/11.

Debriefing:
- SLFPAW reps expressed their concerns about the contractor changing from the Willowbend to RiverBirch pits."

The contractor is Phylway, the same one as on WBV-14c.2.

What exactly is happening here? We know River Birch has some sort of hold on certain members of the Jefferson Parish political establishment, but do they also have a similar influence on the Corps and their contractors? And what would make the contractor switch from a pit which is known to be clean to one that is known to be debris-laden? After all, the SLFPA-W reports have repeatedly commended the Willow Bend pit as quite acceptable. In their May 23, 2011 report on a May 18, 2011 inspection to WBV-14e.2, they specifically noted:

"No issues at this time. Material is hauled from the Willow bend pit and is very clean."

A possible connection is the contractor Phylway. Their name, along with River Birch's, keeps popping up on projects where debris is a problem. They are the contractor on what appears to be the worst project, WBV-14c.2, as well as three other projects with reported debris problems: WBV-12 (covered in Part 3), WBV-14e.2 (covered above), and WBV-15a.2 (also covered above).

I should also note that WBV-14e.2 is yet another project that was not actually at the 100 year level of protection at the end of May, despite the Corps saying it was. From the May 27th report on the May 26, 2011 inspection of WBV-14e.2:

"This project involves raising the elevation of approximately 3.5 miles of existing earthen levee to the 100-year level of protection varying between elevations +13.0 to +14.0."

"- Reach 1 (approximate Sta.649+54 to 661+50) has been constructed to elevation 12.5'. Final construction grade will be elevation 14.0'. No work was being done in this area during site visit.
- Reach 2 (approximate Sta.662+00 to 741+50), existing levee has been capped to elevation 11.0'.
- Reach 3A and 3B (approximate Sta.742+00 to 768+00) has been constructed to elevation 13.5' and has been seeded.
- Reach 3C (approximate stations 768+50 to 799+35), existing levee has been capped to elevation 11.0'. Contractor was placing embankment on protected side berm at approximate Sta.787+50. Contractor began hauling in material from the River Birch pit on Thursday 5/25/11."

How many projects are there like this?

WBV-18.2


We looked at the March 23, 2011 inspection of WBV-18.2 (contractor: Circle Construction) in part 3 of this series. At that time, there were debris problems. Since there, there's been two more inspections. An April 4, 2011 inspection revealed:

"Contractor placing only material to be processed and sealing in preparation of forecasted storm. Reviewed project from approximate station 245+00 to 160+00 along the protected side berm. Debris noted today was localized in the original berm area on the protected side between approximate stations 180+00 and 178+00. Overall material being placed for processing appears to be free of debris."

We get a hint of why the material looks cleaner in the report for the May 10, 2011 inspection:

"Contractor processing material; overall material placed for processing appears to be free of debris. Embankment material currently being placed on protected side berm at approximate station 211+00.

Very little debris was noted in review of levee and berm; debris found was removed and tossed to toe of levee (protected side) to be picked up by contractor later today.

Debriefing:
No issues, excavation was halted at pit were debris was coming from. Current material appears to be free of debris."

So this contractor (Circle Construction) stopped using a pit that was putting out debris. It's unfortunate the pit is not identified, but it does lend more credence to a theory that certain pits are contaminating levees all over the west bank with debris. However, I should note that this project was using borrow from pits located on the site, so it's not clear if the inspector was referring to those pits, or pits elsewhere. Nevertheless, the debris problem was there.

WBV-17b.2


We also looked at this project (contractor: Healtheon) in an earlier post. It too was having debris problems. And like so many others, they have continued.

Except there is one difference. The SLFPA-W have explicitly linked the debris issue to the Corps' drive to build stuff before June 1, 2011. This is shocking stuff to read.

From the May 16th report on the May 10, 2011 inspection report of WBV-17b.2:

"Overall review of site visit:
Levee is completed to construction elevation with the exception of two areas. The first at the east entrance levee crossing for WBV-72 and the second at the discharge pipe crossing for WBV-76.
The last lift placed atop the levee is compacted but not graded level; contains high and low areas (not sure which area is to grade). The sides of the levee where the last lift was placed appear not to have been graded or compacted. A considerable amount of debris was found through out the top and sides of the levee along with a small amount in the flood side berm."

So not only is there debris through this supposedly finished levee, it's also not really finished.

But here's the gauntlet being laid down:

"Debriefing:
The amount of debris found in the material placed in the levee is considered unacceptable. SLFPA-W noted no crew on site picking up debris today.
As reported in previous report; SLFPA-W has concerns that some debris may not have been removed due to the rate of 38 trucks per hour dumping material and no personnel was noted picking up debris.
Previous SLFPA-W concerns about the debris appear to have been disregarded to meet the June mandate."

Wow. That's really, truly laying it on the line. They (David Roark representing the SLFPA-W and David St. Marie representing the state of Louisiana) follow up with 8 pages of debris photos, and even include direct quotes about debris from the specifications. It is as close to an out-and-out argument as you will see in such a document.

The next inspection (May 23, 2011) shows the Corps inspector - Larry Pryor - pushing to finish the levee in advance of the June 1 deadline, and the SLFPA-W (represented by David Roark) insisting (rightly) that it's not acceptable.

"Overall review of site visit:
Levee is completed to construction elevation with the exception of two areas. The first at the east entrance levee construction crossing for WBV-72 and the second at the discharge pipe construction crossing for WBV-76.

USACE inspector expressed that the contractor believes the levee has been constructed to plans and specs and is ready for seeding; after reviewing the levee it appears to still have high and low areas along the top and sides of the levee. Also, debris was found along the top and sides of the levee.

Debriefing:
Before seeding, the levee needs to be graded, compacted and the debris removed (wood and concrete)."

Who exactly is Mr. Pryor working for here? Along with debris photos, the SLFPA-W inspection report includes page after page of photos of depressions and debris in the levee, but the Corps wants to say it's done? Here's the best picture (among many) of the rather obvious high and low areas along the top of the WBV-17b.2 levee:


There is something deeply wrong going on.

Conclusion

A few trends emerge from reading enough of these reports:

1) The debris problem is widespread

Here's a map showing the projects where SLFPA-W inspections have documented debris problems:


All those red lines represent eight levee projects covering 21.9 miles, 18.9 miles of it on the front lines of a hurricane. It looks like the majority of the 100-year hurricane protection levee system along the west bank, excepting the Mississippi River levees. This is not an isolated problem. This is a systemic threat to the integrity of the storm protection around New Orleans.

2) The Corps does not like the SLFPA-W

SLFPA-W inspectors do not appear to be welcome on the project sites by Corps inspectors. Some Corps inspectors explicitly ignore them, while others insist projects are acceptable when they clearly, obviously are not. As a result, levees appear to be getting built improperly, despite SLFPA-W objections.

3) Some borrow pits are debris-laden

Numerous SLFPA-W inspection reports point to borrow pits owned by River Birch as the culprit in the excessive amounts of debris being placed into miles of new levees around the west bank. Certain projects' contractors and Corps inspectors (and higher Corps officials) are well aware of this, yet continued - and continue - to use these pits, sometimes even switching to them from cleaner pits (this happened the last week of May on one project). This is a serious, systematic problem that screams out for investigation, especially in light of the ongoing federal investigation into River Birch and their dealings with Jefferson Parish politicos.

4) The Corps' race to June 1st has materially affected the levee work, resulting in unacceptable work.

The SLFPA-W says it explicitly and implicitly throughout their reports: the Corps' hurrying has damaged their levee work. Guess who eventually pays? The people living behind those levees.

5) The Corps lied about projects being 100-year ready on June 1, 2011

SLFPA-W photos and inspection reports from the last week of May document numerous projects still well below 100-year elevations, despite Corps public pronoucements claiming the opposite. This appears to be lying by the Corps.

In the next part, the debris problem breaks through to the print media.

Labels:

Debris, Part 4

Part 1
Part 2
Part 3
Part 5
Part 6
Part 7
Part 8
Part 9
Part 10
Part 11
Part 12
Part 13
Part 14

We last looked in on the debris-laden levees lining the west bank of the Mississippi a little while ago (earlier parts linked above). It still doesn't look good.

As before, we'll start with troubled project WBV-14c.2. The last update we had was from late April, and had occurred after the Corps had actually had their contractor take samples of much of the project to determine how much debris was within the levees.

The Southeast Louisiana Flood Protection Authority - West has posted four more inspection reports for WBV-14c.2 since then, evidence they are keeping a close eye on this project.

The May 6, 2011 report on an inspection conducted May 3, 2011 indicates debris was still a problem:
"Overall review of site visit:
- West end of job (Sta.0+44 to Sta.55+00). No material was being hauled into area during time of inspection. Area is up to elev. +10'. Degrade of existing levee is scheduled to begin next week. Much less debris is being found in the levee section.
- All sheet piling on the west side of Westminister Pump Station has been driven. Hpiles are currently being driven at monolith G.
- On the east end of the job (Sta.119+00 to Sta.182+00) material is being hauled in to fill the protected side berm. Some debris is being found on the surface in this area.

Debriefing:
- All issues and concerns were discussed between SLFPAW and USACE representatives that day. Debris throughout the levee system remains to be an issue, although the material being hauled in is cleaner than previous material."

Only three pages of debris photos were included with this update. Here's a sample:


The next inspection took place May 12, 2011, as documented in the May 13, 2011 report:
"Overall review of site visit:
- West end of job (Sta.0+44 to Sta.55+00). The new levee is up to elevation 10 in this area and the degrade of the existing levee is in progress. A large amount of concrete rocks is being found in the existing levee. Contractor will need to go through this area and pick out unsuitables."

Concrete in the existing levee, which is then being put into the new levee. Nice.

Just to remind you, the new levee is being built, in part, using the existing levee. When the new levee reaches an elevation of 10 feet, the contractor is to start "degrading" (i.e. taking apart) the existing levee and use that material to build the new levee up to the final elevation of 13.5 feet:


The problem is that the existing levee is obviously shot through with debris, as the Corps and the contractor, Phylway, have known for months.

The report continues
"- North/South levee (Sta.68+00 to Sta.112+00). Contractor was hauling in material to the protected side berm during site visit (approx. Sta.95+00). Material is much cleaner than previous material that had been hauled into job site but the area will still need to be picked. Pickers were at approx. Sta.105+00 during site visit.
- East end of the job (Sta.119+00 to Sta.182+00). No active work was being performed on this end of the job, but some unsuitables were found on the protected side berm.

Debriefing:
- SLFPA-W reps expressed their concerns to Jeremy George (USACE) about the concrete being found in the existing levee that is being degraded (approx. Sta.0+44 to Sta.55+00). Debris throughout the levee system remains to be an issue, although the material being hauled in is cleaner than previous material."

There's three pages of pictures of the concrete from the existing levee on the west end of the project:


And three pages of the miscellaneous debris from the east end:


Things got worse the next week. Here's what happened during the May 18, 2011 inspection, documented in the May 23, 2011 report:
"Levee:
- West end of project (Sta.0+44 to Sta.55+00):
The new levee is up to elevation 10.0' in this area and the degrading of the existing levee is in progress. Material is being placed and compacted atop the new levee. Material from degraded levee contains concrete, bricks and wood debris. SLFPA-W reviewed top of new levee ahead of placement operation and noted some debris. Approximately a 1' lift has been placed on the flood side berm between approximate stations 0+44 and 10+00. Material appears not to have been disked, cleaned of debris or graded to final grade; contains debris."

Concrete, brick, and wood now. Not good. the description continues:
"- North/South levee (Sta.68+00 to Sta.112+00):
Contractor wetting and compacting crown of levee between approximate stations 95+00 and 110+00. SLFPA-W noted concrete debris in crown and slope (protected side) of levee.
- East end of the project (Sta.119+00 to Sta.182+00):
Contractor placing material along the protected side berm. SLFPA-W reviewed several areas and noted that the debris found was large in size but not as abundant as previous material. USACE inspector stated that debris will be removed during disking operation before final grading.

Debriefing:
Reviewed areas containing debris with USACE inspectors.
West end of project approximate stations 0+44 to 55+00:
- Debris in material from degraded levee, material to be disked and picked before next lift is placed.
- Debris in material placed along flood side berm between approximate stations 0+44 and 10+00. Material to be disked and debris removed before final grading.

North/South levee (Sta.68+00 to Sta.112+00):
USACE to review area again for debris.

East end of the project (Sta.119+00 to Sta.182+00):
Debris in material placed along protected side berm. Contractor to disk and remove debris before final grading."

With this update, we return to the many, many pages of debris photos seen earlier. There's 11 pages this time around. Here's some of the photos of the bricks, concrete and wood coming out of the existing levee and being placed into the new levee:


The debris problems continued with the latest inspection, just before the Corps' June 1st deadline. The May 27, 2011 report of the inspection held that same day says:
"Levee:
- West end of project (Sta.0+44 to Sta.55+00):
The new levee is up to elevation 11.0' in this area and the degrading of the existing levee is complete. Material from degraded levee contains concrete, bricks, and wood debris. Material needs to be disked and picked before another lift is placed in this area."

I just can't believe that they got everything out. The new levee likely has a ton of debris in it, both from the old levee and from the borrow pit.

The report goes on:
"- North/South levee (Sta.68+00 to Sta.112+00):
Final 6" lift is being installed in this area. Pickers have picked the entire north/south levee this week. Contractor plans to seed this levee within the next few weeks. SLFPAW will be notified before the seeding of this levee for a final inspection.
- East end of the project (Sta.119+00 to Sta.182+00):
Contractor is placing material along the protected side berm at approx Sta.170+00. Throughout the levee and berm of this area concrete and wood debris was found.

Debriefing held between SLFPAW reps and USACE:
- West end of project approximate stations (0+44 to 55+00):
Debris in material from degraded levee, material to be disked and picked before next lift is placed.
- North/South levee (Sta.68+00 to Sta.112+00):
SLFPAW reps will be notified before seeding of this levee is to take place.
- East end of the project (Sta.119+00 to Sta.182+00):
Debris in material being placed and throughout levee section. Contractor to disk and remove debris before final grading."

I'll skip the normal pictures of debris and concentrate on another issue.

At the same time this inspection was taking place, the Corps was claiming they had hit their goal for providing 100 year protection for the greater New Orleans area by June 1, 2011. Those statements included some caveats about a few projects they had "temporary measures," but for the most part, they claimed their construction was up to the 100 year level of protection (LOP). They included WBV-14c.2 as built up to the 100 year LOP on this map.

According to the plans and specifications, the 100 year design height for this project was to be 13.5 feet (notably half a foot short of the official design height established in 2007). This May 27th report explicitly says sections of the project were at 11 feet that day. In addition, there were some small sections of steel and concrete floodwall being built. Look at the May 27th photos of those areas:


Does that look like a project ready to confront a 100 year flood? Yet the Corps claims it's ready. This appears to be more than stretching the truth.

So that's where WBV-14c.2 is at the end of May. But it is not the only project with debris problems. In the next part of this series, it becomes clear the problem is still widespread, and the SLFPA-W makes explicit what they feel is causing it.

Labels:

Pumps ... fixed?

[Updated June 4, 2011, see bottom of post]

When we last looked in on the pumps at the Corps' West Closure Complex (WCC), they were all getting yanked out because all their bearings were overheating after just a few minutes' run time. How'd that work out?

Apparently pretty well. The Southeast Louisiana Flood Protection Authority - West has published their latest progress report on the WCC. It covers most of May, 2011 and it includes an update on the pumping situation:
"PUMP TRAIN:
During the past two (2) weeks, Pumps 6, 7, 8, 9, 10, 11, 12 and 13 were reassembled, realigned, break-in tested and wet tested for four (4) hours. There were some minor issues regarding fuel delivery and engine speed control but all issues were corrected and the four (4) hour tests were completed as specified. Test results have been submitted and are being reviewed, but preliminary vibration testing indicates that most recorded vibrations were in the 0.060 inches per second range and the allowable vibration according to Hydraulics Institute Standards ANSI/HI 9.64 is 0.28 inches per second RMS for this pump speed. All pump bearing temperatures stabilized well below the 200 deg. F maximum limit with 134 deg. F being the maximum bearing temperature recorded on a non-flooded upper enclosing tube bearing.
This brings the pump count to eight (8) that have been officially wet tested as required for the 01 June 2011 Interim Protection deadline. The Contractor intends to complete an additional pump next week and two (2) others in the next several weeks."

Sounds like good news.

"the four hour [wet] tests were completed as specified." Let's look at the details of those tests. We looked at the specifications of the wet tests earlier. Here they are again:
"Each pump unit shall be given a test with water under load, at or near normal operating conditions, for at least 4 hours or as directed by the Contracting Officer. The test shall be conducted by the Contractor and will be witnessed by the Government. All supplies and equipment required to conduct the test shall be provided by the Contractor. During the test the operation of the pumps will be observed and measurements of sound, vibration and bearing temperatures shall be taken and recorded. Without additional costs to the Government, the Contractor shall make all changes and correct any errors for which the Contractor is responsible. The Contracting Officer may waive or postpone the test if sufficient water is not available. Appropriate changes will then be made to the contract.

Vibration and bearing temperature records shall be kept by the Contractor and turned over to the Contracting Officer at the conclusion of the contract."

So there are four basic parameters involved here (besides the four hour duration), though I'm sure there's more detailed monitoring going on for the test. The basics are:

1) Sound
2) Vibration measurements
3) Bearing temperature measurements
4) "Normal operating conditions"

The first three are to be measured at the fourth. Thanks to this latest SLFPA-W update, we know a little about the last three of these parameters. The update is (ahem) silent on the sound measurements.

Vibration is supposed to fall within limits set by ANSI/HI 9.6.4, "Rotodynamic Pumps for Vibration Measurement and Allowable Values" for a given speed. It's good to see this standard number in print, because it is the latest standard available (unlike the list of standards in the actual specification, which was obviously not checked before it was issued). It's from 2009.

Bearing temperatures are apparently not supposed to top out above 200 degrees F, and during the tests never exceeded 134 degrees F.

The other parameter mentioned in the wet test specifications is "normal conditions." That refers to two numbers: the height of the incoming water and the speed at which the pumps spin. The Corps doesn't control how much water is at the inlets to these pumps. It can range anywhere from 0 feet to 7 feet, and is dependent on the tides and if there was rainfall. But they can change the speed, which directly affects the flowrate they are shooting for - around 1740 cubic feet per second (cfs) per pump. The exact speed-flowrate correlation was determined during model testing by the manufacturer, Fairbanks-Morse.

I have learned from the author of the SLFPA-W update, Mr. Danny Caluda, that the 5400 horsepower C280-12 Caterpillar pump engines are programmed to spin at two speeds: 990 RPM and 1010 RPM. After the power is transmitted from the engine through the Lufkin Industries gearbox, the two engine speeds correspond to a low pump speed of 171.7 RPM and a high pump speed of 175.2 RPM. The lower speed is for lower inlet water elevations (anything below 2 feet). The higher speed is for the higher elevations (2 feet and above). The WCC Water Control Plan and the more detailed Interim Standing Instructions call for the inlet height to be kept below 4 feet, with hopes that it never gets to 7 feet. If water does get that high, that probably means the local pump stations feeding the WCC will be shutting down in order to prevent levee breaches, but causing neighborhood flooding. More details regarding this scenario, which is more likely with the 8 pumps currently in service as opposed to the full complement of 11 pumps, can be found here and here.

Note the rated - and specified maximum - speed of the engines is 1000 RPM, but the top speed in practice is 1010 RPM. Mr. Caluda tells me that at the 1010 RPM speed, the engines do not exceed their continuous duty horsepower rating, which is good. The increase above the original specification came about when the number of pumps was reduced from 13 to 11 in a cost-cutting move. In order to keep the total flowrate of the 11-pump arrangement equal or greater to that of the 13-pump arrangement, it was decided to run the pumps a little faster at higher inlet elevations. The speed increase from 990 to 1010 RPM allows for an additional 45 cubic feet per second (cfs) of flow for each pump, or an overall increase of 495 cfs, something which will be useful when the water is higher during a storm.

Since the water was so low in the canals during these May tests (around 0), the pumps were only tested at the lower speed, 990 RPM (as noted on the photos below). The difference between the two settings, 20 rpm on the engine or 3.5 rpm on the pump, is not particularly substantial, so running these tests at 990 RPM would appear to satisfy the specification requirements for testing "at or near normal operating conditions." In addition, Mr. Caluda informs me that when the water does get above 2 feet (after a rainstorm causes stormwater to be pumped into the canals upstream of the WCC), the Corps and SLFPA-W hope to have tests done at the higher speed.

Mr. Caluda included pictures of from the tests of four pumps - 6, 8, 11, and 13. There are no pictures from the tests of pumps 7, 9, 10, or 12.

On May 18, 2011, pump 11 was tested:


Pumps 13 and 8 were tested on May 21st:




Pump 8 was tested again on May 23:


Pump 6 was tested May 25th:



The only press video I can find around the pump testing was a video shot by the Times-Picayune newspaper on May 24th:

The date of the video, May 24th, is confirmed by this Corps photo:


What's interesting about this video, besides the fact that it appears to be the only one of the pump testing, is that it shows another test of pump number 8. That would make at least three different days pump 8 was turned on for testing - May 21st, May 23rd, and May 24th.

I've learned that the actual final 4 hour test of pump 8 did not occur until May 31st. Apparently, there was an issue with the Caterpillar engine speed control during the intial tests. An engine control module was replaced and the pump was retested, but the problem persisted. After replacing a wire from the engine control panel to the governor, the problem was repaired and the pump made it through its four hour test on the 31st. These kind of hiccups are not unusual during testing, though it is notable that the engine had previously been tested by Caterpillar last summer before installation.

However, this does bring into question Corps public statements about the testing on May 24th. Take a look at this screenshot of another Corps photo taken that day:


There are different flavors of "success." While the pump may have pumped the correct amount of water that day, its engine was still not meeting specifications, and the Corps knew that. It's a small thing, admittedly, but would it have really hurt them to exclude the word "successful" from the caption on this photo (and this one, and this one)? Such slipperiness with the truth does not help the Corps' case.

As noted in the SLFPA-W update, a ninth WCC pump is due to be tested within the week, and the remaining two pumps are due to be tested by the end of June. I will be sure to pass along the results of that testing.

[Update, June 4, 2011]

With the four hour wet tests apparently out of the way, the Corps felt confident enough to have the cameras out for a photo op, which they portrayed as a test.

WWL-TV was there:


As was Fox 8:


Both pretty much regurgitated Corps press release materials ("can fill a swimming pool in blah blah seconds," etc).

The Times-Picayune was also there, and provided a little more depth, mentioning the bearing failures in April, along with excuse-making by the Corps:
"A bearing on one of the pumps overheated and cracked, prompting the contractor to remove all of the pumps and modify the bearings, said Kevin Wagner, a corps senior project manager who said the need for adjustments was not surprising.

'These are custom pumps,' he said. 'It’s not like we can put them in a lab and test them. They had to be adjusted in the field.'"

"Adjusting" is tweaking the engine speed controls like they did on pump number 8. Pulling every pump out a month before startup and remilling every bearing on them, after spending hundreds of thousands of dollars to rush to get most of them installed before the building's roof was put on? That's systemwide screwup, either by Fairbanks Morse in the bearing specifications and drawings, Bollinger Quick Repair in the assembly, or some subcontractor in the manufacture. Here's the list of those subcontractors, courtesy of Fairbanks-Morse:

Advance Manufacturing, Cleveland, OH
Advantage Machining, Aurora, IL
Baumann Coatings, Bessemer, AL
Bay Cast, Inc, Bay City, MI
Bollinger Quick Repair, Harvey, LA
Decatur Foundry, Decatur, IL
Girard Machine Co, Girard, OH
Hardie Tynes Co., Birmingham, AL
J&J Precision Machine Co, Cuyahoga Falls, OH
Louisiana Machinery, New Iberia, LA
Lubrication Systems Co, Baton Rouge, LA
Lufkin Industries, Lufkin, TX
Monarch Corp, Milwaukee, MI
Profile Finishing Systems, Waukesha, WI
RH Fastener Supply, Riverside, MO
RoMac Freight, Parkville, MO
St. Mary's Foundry, St. Mary's, OH
WJW Freight, Syracuse, NY

And as far as the pumps being "custom," it's not like Fairbanks Morse is new to this business. Their website, right next to a link about these very pumps, says:
"For over a century, Fairbanks Morse has been manufacturing a wide range of pumps for applications in municipal and industrial installations."

It's hard to believe anyone at the Corps New Orleans District still tries to gild the lily, but I guess old habits die hard.

Wednesday, May 11, 2011

Here we go again

The last time we took a look at the pumps at the new West Closure Complex (WCC) on the west bank, across from New Orleans, we found that only 8 of the 11 pumps would be ready for June 1. No reason was given for the shortfall. In addition, we found there were very loose terms on the testing of the pumps. That testing was due to start in April.

We know the Southeast Louisiana Flood Protection Authority - West (SLFPA-W) has inspectors watching all the Corps' jobs on the West Bank. From their inspection reports, we were able to learn about systemwide problems with excessive debris being placed in the levees all over the west bank (Part 1, Part 2, Part 3). SLFPA-W's reports on the West Closure Complex have been similarly detailed, including descriptions of the first pump testing, which did occur last month. It did not go well.

The May 3, 2011 SLFPA-W report on their April 29, 2011 inspection visit tells the tale (note, while the report indicates an inspection on April 29th, it actually recounts events that happened over a multi-day span dating back to mid-April):
"During this reporting period the dry testing of pump no. 13’s engine, gear and pump began. There were several issues regarding gear oil pressure alarms and engine fuel delivery, but once those items were corrected the engine was started and the pump rotated with a dry impeller."

[Note: while there are currently 11 pumps at the WCC, the original design called for 13. It appears the original numbering has survived into the final design, thus the descriptions of pumps 12 and 13 in a station with only 11 pumps.]

So a few hiccups, but they got it going for the dry test. The terms of that test are laid out in the WCC specifications. Here's an excerpt:
"After pumping unit has been completely assembled, including all rotating elements and lubrication system, operate at full rated speed for a period of 4 hours or until the bearing temperatures have stabilized, whichever is longer, to assure proper alignment and satisfactory operation."

The dry test specs also call for monitoring of vibration in horizontal and vertical axes. They then describe exactly what is meant by stabilization of the bearing temperatures:
"Pumping unit shall be operated at rated speed and the bearing temperatures recorded at 5 minute intervals until the temperature rate of rise has stabilized for all bearings. Bearings' temperature shall be considered stabilized when the rate of rise does not exceed 1 degree Fahrenheit in five minutes."

If that doesn't happen?
"Dry test run shall be repeated if it is necessary to interrupt the test before all bearing temperatures have become stable. If after a run of reasonable duration the temperature rate of rise for any bearing has not stabilized, test shall be terminated until the cause of overheating is determined and corrections made. Then dry test run shall be repeated."

This is all pretty reasonable. And if they have problems that are the fault of the manufacturer or the pump assembler?
"Should tests reveal that there is a design deficiency or a manufacturing error in pumping unit components, the problem shall be promptly corrected by and at the expense of Contractor."

Good. The public shouldn't be on the hook for a manufacturer not meeting the specs. By the way, the manufacturer of these pumps is Fairbanks-Morse. They were assembled by local company Bollinger Quick Repair.

So how did all this work in practice? Back to the SLFPA-W report:
"The engine was brought up to operating speed and the test concluded with a failure of the upper bearing in the pump."

That's not good.
"Upon observation it was determined that the bronze sleeve type bearing had cracked and was seized to the shaft sleeve. Further analysis indicated that the bearing was installed such that it was not plumb with the shaft and the shaft loading on the bearing caused the failure."

SLFPA-W included pictures of the cracked upper bearing on pump 13:


Date stamps on these and other pictures of pump 13 in the report indicate the bearing failure probably occurred between April 17th and April 19th.

After a failure like that, the prudent thing to do would be to check the other pumps for similar defects. That's what was done, according to the SLFPA-W inspection:
"The remaining aligned pumps were checked and minor adjustments were made."

With the lack of detail on this checking procedure, it's difficult to ascertain how comprehensive the procedure was.

The next step was to try another pump:
"Next pump no. 12 was prepared for a dry pump test and the operation of that unit was discontinued when the lower pump bearing temperatures became elevated above the safe operating range."

Again, not good.
"The decision to test pump no. 11 under wet conditions was made and the pump produced flow for approximately five (5) minutes before the lower pump bearing RTD indicated excessive bearing temperatures."

This decision certainly raised my eyebrows. It's not told how the Corps jumped from dry testing to wet testing, which is a big leap. While the specifications do not explicitly call for the wet test to follow the dry test, it would certainly seem prudent to do so.

Anyhow, at this point it was clear to them there was a systemic problem with the bearings:
"With that issue it was concluded that the bearing clearance tolerances were too tight and that all bearings in each pump would be removed and re-bored to achieve a total bearing clearance of 0.025 inches."

Whoa! After spending months installing all these pumps (and showing them off "victory lap"-style to various groups, multiple bunches of fellow Corps employees, and assorted Pentagon bigwigs before anything had even run), they now had to yank all 11 of them out and completely disassemble them. Maybe the tours should have waited until they had a functioning facility?

So they started pulling them apart:
"The removal of the three (3) bearings in each pump began with pulling of pump no. 3. Once the bearings were removed from pump no. 3, they were delivered to Bollinger Marine for boring. While boring operations were ongoing, pump no. 12 was removed from its intake bay setting and the pump was disassembled."

A passage later in the report gives an idea of what was involved:
"The majority of the mechanical work performed for this period revolved around the testing and ultimate disassembly of pumps 3, 12 & 13. That work included removal of the intake air and exhaust piping, disconnecting the gear oil and coolant piping from the right angle gear, disconnecting engine to gear drive shafts, disconnecting gear to pump shaft couplings, removal of the right angle gear, removal of the right angle gear pedestal and pulling of the three pumps that had stop-logs already installed in the intake bays."

Here's pump 3 after it was lifted out but before it was taken apart:

And here it is after disassembly:


That is a ton of work, and they're going to do this on ten more pumps (all eleven pumps were already installed, as noted in the previous SLFPA-W report). I assume the Corps is having the contractors segregate the expenses associated with this work so the taxpayer doesn't end up on the hook.

The pump removal didn't exactly go as smoothly as the above paragraph would indicate. Returning to the earlier passage in the report:
"At the time of this report, pump no. 13 was being prepared for removal but there was some difficulty in removing the lower half of the pump to gear coupling. Nitrogen was being used to cool the upper pump shaft and the pump coupling was being heated with rose bud torches to provide the expansion needed to release the coupling from its interference fit."

Nitrogen! They had to bring in nitrogen to decouple the pump shaft!


So how did all this wind up? From the SLFPA-W report:
"Currently the bearings from pump no. 3 are being installed in pump no. 12 and the current scheduling indicates a possible test of that pump by 07 May 2011."

Presumably, the next SLFPA-W report will detail what happened during that test.

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