#4th Change Order 04/02/2018Jacobs Key West International Airport 03118
Monroe County
Strengthen/Rehabilitate Commercial Apron
Project No. GAKAP148
CHANGE ORDER
PROJECT: CHANGE ORDER NO.: 4
Stren hen/Rehabilitate
Commercial Apron INITIATED ON: March 27, 2018
TO (Contractor): ABC Construction, Inc.
7215 NW 7 Street
Miami, Florida 33126
CONTRACT: GAKAP148
CONTRACT DATE: November 22, 2016
You are hereby authorized and directed to make the following change(s) in this Contract:
Due to unforeseen conditions that included Hurricane Irma. exceptionally hieh "Kine" tides. and soil conditions
construction activities and production were delayed and reduced. This change order is for time only. Approval of this
change order does not preclude ABC from seeking costs limited solely to their subcontractors associated with this time
extension for consideration by the County and the FAA.
The original Contract Sum ...............................
Net change by previously approved Change Orders.........
The Contract Sum will be unchanged
by this Change Order ......................
The new Contract Sum including this Change Order
will ................ ...............................
The Contract Time will be increased by ......... ...............................
$ 9.250.000.00
$ 37.733.30
$ 0.00
$
9,287 ' 733.30
135 Calendar Days
Signature of the Contractor indicates agreement with the terms of this Change Order, including any adjustment in the
Contract Sum and/or the Contract Time. Adjusted cost and time include all direct indirect and imnact cnsts and time
for delays, disruption, inefficiency, acceleration and all othf
RECOMMENDED:
Jacobs Engineering
By Date
Key West International Airport
3491 South Roosevelt Blvd.
Key West, FL 33040
By Date
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Change Order Attachment per Ordinance No. 004 -1999
• Change Order was not included in the original contract specifications. Yes ® No ❑
If Yes, explanation: Due to unforeseen conditions, that included Hurricane Irma, exceptionally
high "King" tides, and soil conditions the Contractor is requesting a time extension.
• Change Order was included in the original specifications. Yes ❑ No
If Yes, explanation of increase in price:
• Change Order exceeds $25,000 or 5% of contract price (whichever is greater). Yes ❑ No
If Yes, explanation as to why it is not subject for a calling for bids:
• Project architect approves the change order. Yes ® No ❑
If no, explanation of why:
• Change Order is correcting an error or omission in design document. Yes ❑No
Should a claim under the applicable professional liability policy be made? Yes ❑ No
Explain:
03/09/2018
Time Extension for Key Strengthen Rehabilitate Commercial Apron
1. Hurricane Irma (09/03/17 to 10/07/17) 35 Days
9/3/17, Jacobs notifies us to begin hurricane preparedness for Irma. All contract work stops,
securing potential flying objects.
9/4/17, we are securing barricades in the AOA, filling with water and triple sand bags.
9/5/17, Light towers have been relocated to a more secure area. All work area secured.
9/19/17, we are able to drive done to the Keys and inspect the hurricane damage, We go right
to the airport and reinstall all the flags and lights in the low profile barricades. There are fish
swimming around in lanes 20 and 2111! Both rented homes are not in livable conditions.
9/20/17 thru 10/1/17 are spent in Jupiter while awaiting confirmation from Jacobs and Air Ops
when we will be allowed back on the AOA to resume the project.
10/1/17, our first shift since Irma gets underway; we started pumping out all the water that was
accumulated in the area due to the hurricane.
10/2/17, 220 yards of 650 Flex to pour tonight. All goes well.
10/3/17, operation is suspended today due to rain in the forecast. A meeting was held with
Doug and Alfredo and it was agreed that due to the weather in the area we would not pour any
concrete until weather clears up.
10/04/17- 10/07/18, No work due to bad weather
03/08/2018
King Tide Delays, 10/8/2017 to 1/30/18 (91 days).-
10/8/17- 10/16/17, Back to work now we have the king tides in the lanes and are not able to
continue placing concrete. Tierra the testing lab is trying to figure out a solution so we can
proceed. 8 days.
10/17/17- 10/29/17 Recommendations from Tierra came in. A change orders was submitted for
the additional work and approved. 13 days.
10/30/17; concrete in lane 21, phase 4. This is where the water issues really begin with the tide
issues. We are unable to complete this lane due to the spongy substrate and what was the last
driver getting stuck forcing us to bulkhead it off and leaving 2 squares, 30' uncompleted. 1 day
10/31/17; concrete in lane 20, phase 3 this shift. No problems on this one, we poured from the
existing lanes already in place.
11/1/17; Toppino removes asphalt for the transition ramp on the east side of phase 3. We prep
for flowable fill, grade and compact crushed lime rock. This is where timing gets dicey, we have
asphalt tentatively scheduled for the next shift, this will not happen until our lab performs a
break on one of the beams to determine if we can drive over it with the equipment.
11/2/17; the beam break was good at 570 M. R. so we have asphalt tonight. Asphalt shows up
and with Derrick as Jacob's rep the asphalt is put down without any issues.
11/3/17 -11/7; Black out stripping happens today on phase 3. Monroe to deliver flowable fill
and place on 11/7/17.
11/8/17; we are still in prep mode for striping.no night work.
11/9/17 - 11/11/17; we are going to remove the G -111 taxi lane this shift. I run the math on the
"P" points and discover there's 4' offset between the existing G -1 and new G -111 lead out lines,
Doug has us stop and tells me to submit an RFI. We are trying to get ready to paint the hold bar
at taxiway "D" but it turns out the existing paint is actually thermoplastic and isn't coming up. 3
days.
11/12/17; We layout the striping and the 50' radiuses and we pressure wash the rest of the
shift. We run the 2 sump pumps to verify the water can be removed but just keeps coming back
with the King tide going on. 1 day
11/13/17; still dealing with the water issues at the north end of phase 3, Jacobs has directed us
to remove the "mush" and replace it with new lime rock. 1 day.
11/14/17; striping today, we're on site at 8:30AM, I do final layout of the 50' radiuses and the
hold line at the TOFA. Striping goes fast and by 1:30PM they are gone. The night shift has
Toppino on site, we have dewatered and take out 2 truckloads of "mush" and replace it with
better, DOT crushed lime rock. That's the 3 squares we needed (45') to get far enough away
from taxiway D to allow us to open up phase 3, we are still 2 squares short on lane 21 but can
now move on to phase 4. Jacobs will let us pour the last two squares of phase 3 with phase 4.
We leave the floor pump running with the light tower; the volume of water will not end. 1 day.
11/15/17; HC &D is on site, they set the 45' of forms needed to get us out of phase 3. There was
rain but we got it dewatered and the forms are set for concrete next shift.1 day.
11/16/17; 50 yards of 650 Flex tonight, not a lot but pivotal to open up phase 3. We also
poured flowable fill at the west end where Jacobs had us put in a trench 2' into the asphalt to
aid in dewatering. We pour it up to within 2" of finish grade, 1 day
11/19/17; Toppino this shift, I've laid out phase 4 and they will saw cut if Doug will approve the
opening of phase 3. That entails us to do some minor grading by the TOFA which Doug
approves and phase 3 is officially open. There is rain in the area. 1 day
11/20/17; more asphalt removal this shift. Rain before work and the high ground water has the
catch basin covered by 2" of water. There is no place to dewater, We layout where the concrete
needs to be cut for Alpha 9, no asphalt here it's just concrete to concrete on this taxiway. Due
too the high ground water the work done today was very slow. l day
11/21/17; asphalt removal continues. Luis and I verify the water table elevation at +0.38' and
our excavation will go to an average of -.08' well below the water table. We will have a
conference call at 8:30AM to discuss this situation. We have both pumps running on float
switches, Doug and I want to check the pump station and the float switches there but cannot
open the hatches without a T handle. Minimal work done due to the high water ground water.1
day.
11/22/17; asphalt removal continues, Doug and I are able to access the float switches at the
pump station and verify that the check valves and float switches are operational and can be
adjusted as discussed in the conference call. Very slow process due to water level very high. 1
day.
11/26/17; Toppino finishes asphalt removal and begins grading and dealing with the water.
Very slow processes due to water level very high We modify the dewatering system so we can
make the best of the situation. 1 day
11/27/17; grading continues, dewatering still requires modifications with the float switches,
Toppino keeps mucking up the sumps. The "nav" lights are off, there is work on the runway
beginning. We continue to run the light tower for power to the pumps.) day
11/28/17; Toppino continues grading, it's so we they are unable to use blue tops and resort to
metal stakes for grade. I have to cancel densities due to moisture but we continue with running
the pumps. 1 day
11/29/17; dewatering continues along with Toppino grading. Pumps running and densities are
set for tomorrow. Minimal work going on, due to having section with water in them. 1 day
11/30/17; Mitch from our lab came out and couldn't even put the plate down for 3 of the lanes
at the north side of phase 4. Dewatering continues and Toppino is grading and has the roller
back but can only static roll due to the moisture. We put ballast stone in the east trench to aid
in dewatering and allow HUD to run their forms over.) day
12/3/17; with the moisture /density issue still going on I've directed all work to be at the south
end. Luis will compact it and hopefully we can get some passing numbers. I have HUD start
there in an effort to pour lanes 2 and 4. Densities will be taken in the morning and I can only
hope they'll pass.. As soon as the asphalt comes up there's water there also, serious tide stuff.
Dewatering continues and this King tide stuff is a big problem. Excessive level of water is
slowing down our productivity. 3 days.
12/4/17; Mitch from our lab has confirmed densities in lanes 2 and 4 so HUD is in during the
afternoon to form and we are scheduled to pour concrete tonight. Ground water is bad and
dewatering continues but we manage to pour all of lane 4 and half of lane 2.
12/5/17; As per owner's request ABC is running the pumps continually, We pour lanes 1 and 3
this shift.
12/6/17; more concrete this shift, the remaining portion of lane 2 and all of lane 5. At the end
of this shift we begin running the pumps 24 -7.
12/7/17; more concrete, we pour the north end of the FedEx area and can only get lane 6 in
phase 4. Dewatering continues 24 -7 but it's still a challenge with Toppino mucking everything
up.1 day.
12/9/17; Saturday and there's a cold front coming. It rains hard so we have Nick go out and
make sure the pumps are running and there's fuel in the light tower.1 day
12/10/17; with the front gone it's cool, clear and crisp. I go out and fuel the light tower and
adjust one float switch. Tonight HUD is forming and the dewatering is ongoing. Forming of
concrete very slow due to the high water levels. 1 day.
12/11/17; concrete tonight but during the day Tierra is going to perform a "sand cone" test.
Our lab will also be out there. Dewatering continues, we pour lane 8 and half of 10.
12/12/17; concrete for the remaining portion of lane 10 and half of 8. FedEx will also be
completed this shift. Dewatering continues.
12/13/17; pouring last half of lane 9 and all of 7 this shift. Dewatering continues.
12/14/17; We have cant not go any farther, Jacobs finally tells us they want to excavate
"unclassified" material and replace it with flowable fill. All's we have to work on is the tie
downs at FedEx, it needs to be done by 12/20/17. 2 days
12/16/17: It has been documented that we are pretty much stopped with work at the project.
At the last project meeting it was discussed that Tierra would give Jacobs a direction on how to proceed
with the work on the areas where the moisture levels are higher and densities level do not meet
contract requirements due to the water levels being higher than normal. We have yet to receive any
direction on what the final procedure is going to be to deal with these areas. 2 day
12/18/17, Jacobs send Tierra request for the flowable and lime rock work. 2 days
12/22/17- ABC send Jacobs cost proposal for change in work. 4 days
1/05/18- Change order for additional work was approved. 14 days
1/7/18- 1/22/18 Change order work commenced by Toppino and HCD and finished on 1/22/18. Earth
was removed and HCD placed flowable fill as directed per approved change order.15 days.r . - m
i �
1/24/18- 1/30/18. We stripped phase 4 per the drawings and realized that the layout would not conform
to the planes movement in the area that would be too close to each other. Based on new lay out
provided we restriped phase 4 again on 1/30/18..7 days.
03/08/18
Phase 5 — Poor soil conditions — Time Extension for Keys Strengthen Rehabilitate Commercial Apron
01 -28 -18 till 02 -26-18 (15 days),-
On 1/28/18 we begin the asphalt at Phase 5.1/29/18; asphalt removal continues, temperature is
dropping and the wind is howling.
1/30/18; daytime striping and AARF is flooding the area with overzealous dust control. Night time work
and Toppino continues asphalt and flowable fill removal from the transition ramp.
1/31/18 thru 2/5/18 consists of grading lime rock and compaction. During the day, Concrete Analysis &
Testing Lab (CA &TL) had their tech Mitch out to perform densities; Lisa sent me the disturbing results.
Only one area out of 21 passed the 100% requirement. I notify Luis Perez at Toppino of the problem and
he will bring over the big BOMAG to re -roll the substrate. We've already noticed a problem while driving
metal stakes that you would get typical resistance against the sledge hammer then the stake would just
drop like there was nothing under the lime rock. Mitch from the lab was on the runway job and after
Toppino re- rolled the area Mitch checked the densities at 4:00 AM and there was no improvement.
Doug, Mitch and I discuss the situation and decide that Mitch should take a sample with him to have it
analyzed for another proctor. There appears to be a lot more "fines" in this area of lime rock. 6 days
2/6/18; Jacobs has their lab, Tierra out to do densities. Omar performs the test in two random areas
with the Troxler and gets the same results our lab got; there was talk that calibration could've been an
issue with the CAUL Troxler unit, not the case. We had to cancel the 650 Flex tonight due to low
densities and unforeseen anomalies hidden below the top portion of the lime rock. Our lab tech and
WC &D both experienced the same thing when driving in the metal stakes, very good resistance in the top
5" to 7" then virtually no resistance. In some places the depth of no resistance was unobtainable.
Concrete pour for lane # 2 had to be cancelled. Tierra is coming tonight's shift and their
recommendations on how to proceed, will be imperative.) day
2/7/18; with the sample substrate out to the lab to be processed we perform other duties at the site,
caulking prep which entails kerfs at the saw cuts and cleaning of the resulting slurry. It will take days for
the lab to bake the sample and acquire the results for the proctor, Jacobs understands this and
acknowledges the fact that this time is being well spent with all the joint sealant that's in arears. Omar
from Terra was on site this shift, he verified the low density situation by finding nothing over 92.5 %.1
day
2/8/18 thru 2/11/18; Sunday and we're still waiting on the lab results. I decide to do some pot holing by
hand; Toppino is busy on the runway and can't help. I've spray painted all 21 densities on the ground so
we pot hole the worst one first. Not good, there is marl just below the lime rock which explains the poor
readings from the Troxler. 4 days
2/12/18; Jorge and I meet with Chris and Doug from Jacobs, we walk the site and review the densities
spray painted on the ground. .1 day
2/13/18; with the forms already in lane 2 and all but the east end having densities over 95% it's decided
to go ahead and pour half of it. HUD preps while we unearth the bad area. We find lots of unclassified
material that we remove down to the cap rock. Nick and I bring It back up in 3 inch lifts and compact
with our plate compactor.) day
2/14/18; . Jacobs directs us to remove the bad areas and replace with 6 inches minimum of D.O.T. lime
rock. Doug and I layout and agree to the areas to perform the task. Toppino is here and the extra begins.
HUD is pouring the west end of lane 2 while we remove the unclassified material. Luis has Mike on the
excavator and they are bringing in the fill from the runway job. When all this is complete there is left
over fill remaining. The total of unclassified excavation comes to 23 yards as agreed to by Doug, Luis and
myself.) day
2/15/18 thru 2/22/18; we have poured out lanes 1 thru 6 and just moved the fill used to replace the
unclassified excavation.
2/25/18; Toppino is scheduled to remove the asphalt I've laid out for the transition ramp tonight. I go in
early but stop at the batch plant on my way in. There is one CEMEX cement hauler there but no Monroe
people so I head to the job to move the extra fill so we can pour lane 7 this shift only to find there is
water in the lane. Very little rain but if it did, it all came into the lane. Doug arrives and tells me we can't
pour, I have to call Monroe and cancel the pour for this shift.
2/26/18; lane 7 poured tonight.