04/18/1986
Change Order No. 2
Marathon Airport
AlP 3-12-0044-05
1. Contractor:
The Brewer Co. of Florida, Inc.
2. Plans & specifications revised by change order: to be included in final
plans.
3. Explanation of change order:
Aspha 1t quantity increased by 980.697 tons from an estimate bi d quantity
of 9,661 tons to a final quantity of 10,641.697 tons, an increase of 10.15%.
At $58.50/ton, giving a cost increase of $57,370.78. The increase, spread
over the whole runway surface would amount to an additional depth of 0.3",
within the specification tolerance of VI, see specifications item P-401,
paragraph 4.13.
Bid estimate of grooving was based upon an area of 5006.121 x 90' = 450,550
SF. The ninety foot width (100' - 101) was to give clearance of runway
lights to prevent damage, see specifications Item P-627 Bituminous Concrete
Grooving, paragraph 627-2.0.a., and FAA AC 150/5320-12, Methods for the
Design, Construction, and Maintenance of Skid Resistant Airport Pavement
Surfaces, Appendix 3, paragraph 5.a. With this equipment, the contractor
was able to groove to the pavement edge. The added ten feet of grooving
will provide better skid resistant characteristics. At $O.l21SF the in-
creased 50,050 SF = $6,006.00.
Final quantities and cost are included.
Summary of Change Order Costs
Item Bid Qty. Unit Costs/Unit Bid Cost Final Qty. Final Cost
1 9,661 tons $58.50 565,168.50 10,641.697 $622,539.27
3 565 C.Y. 5.00 2,825.00 672.00 3,360.00
4 16,000 S. F. 0.40 6,400.00 4,000.00 1,600.00
5 8,343 Gal. 1. 50 12,514.50 7 ,761. 60 11 ,642.40
6 65,942 S.Y. 0.12 7,913.04 55,622.00 6,674.64
8 9,775 S.F. 0.42 4,105.50 10,647.00 4,471.74
9 156 L. F. 40.00 6,360.00 150.00 6,000.00
10 80 Gal. 2.50 200.00 38.00 95.00
11 88 C.Y. 35.00 3,080.00 125.00 4,375.00
12 44 C.Y. 35.00 1,540.00 75.00 2,625.00
13 450,550 S. F. 0.12 54,066.00 500,600.00 60,072.00
Total Change Order Cost: $58,902.10
Change Order No. 2
Marathon Airport
AlP 3-12-004-05
Page Two
4. Costs for the change order is given below:
A. The base bid sum was:
B. Base bid will be increased by this change order by:
C. Contract sum including this change order will be:
D. Contract time will remain unchanged.
$704,293.78
$ 58,902.10
$763,195.88
5. Approvals:
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The ~rewer Co. of Florida, Inc.
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Inc.
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Monroe County
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