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Indiana Department of Transportation SEP 14 Report Alternate Pavement Type

Appendix I PR 69 (IR-33047)

This project was bid as a design build contract. INDOT let this project on mainline as an optional pavement section (HMA or PCCP) or the Contractor's alternate pavement section. INDOT received seven (7) bids (7 PCCP options, 5 HMA options, and 1 Contractor's alternate section). Five (5) Contractors participated in both HMA and PCCP pavement type options and one (1) Contractor participated in all three: HMA, PCCP, and the alternate pavement section.

INDOT provided the following pavement design thickness for mainline of this project:

  1. 11 inches of PCCP or
  2. 13 inches of HMA

The Contractor's alternate pavement section was 10 inches of HMA with a modified subgrade treatment (32 inches Lime Modification).

Bid Analysis Summary

PCCP Option
Bidders Initial Bid PW Cost for PCCP Bid Analysis
A $40,595,100.00 + $2,098,552.00 = $42,693,652.00
B $44,165,292.00 + $2,098,552.00 = $46,263,844.00
C $46,484,140.00 + $2,098,552.00 = $48,582,692.00
D $48,726,600.00 + $2,098,552.00 = $50,825,152.00
E $49,395,116.00 + $2,098,552.00 = $51,493,668.00
F $58,998,545.04 + $2,098,552.00 = $61,097,097.04
G $66,463,060.00 + $2,098,552.00 = $68,561,612.00
HMA Option
Bidders Initial Bid PW Cost for HMA Bid Analysis
A $39,945,100.00 + $3,449,374.00 = $43,394,474.00
E $49,014,706.00 + $3,449,374.00 = $52,464,080.00
D $49,111,100.00 + $3,449,374.00 = $52,560,474.00
F $60,328,545.04 + $3,449,374.00 = $63,777,919.04
G $64,727,205.00 + $3,449,374.00 = $68,176,579.00
Contractor's Alternate HMA Pavement
Bidders Initial Bid PW Cost for Alt. HMA Bid Analysis
F $60,206,545.04 + $4,628,327.00 = $64,834,872.04

The low bid amount, out of all 7 bids, was for HMA option (Bidder A) and after adding PW cost of HMA, PCCP, and Contractor's Alternate HMA to the respective pavement type options, PCCP option was the low bid (Bidder A). PCCP option of Bidder A was awarded for this contract. The PW cost factor affected the outcome of the bidding.

INDOT is unable to compared the estimated cost of pavement pay items with actual low bid costs of all three pavement types since this contract was not let as an itemized proposal. All other pavement types such as S-lines in the bids were common to all pavement options.

Conclusion

INDOT did not realize a saving immediately, at the bid opening, (HMA Low Bid - PCCP Low Bid = -$681,450.00). However after using the Bid Analysis amounts (after PW costs applied), INDOT saved the tax payers approximately $768,372.00 over the 50 year service life of the pavement. These savings include the reduction of INDOT's consultant cost of $31,450.00 for producing two sets of typical plan sheets and quantities. The in-house costs for INDOT were determined negligible.

The PW cost for future maintenance did impact the bids and which contractor received the contract. INDOT believes using this process of alternate bids for pavement type selection on this project was very successful.

PW of Future Maintenance of the Pavement I-69 (IR-33047)

  1. Optional Pavement Section (INDOT)
    • PW of HMA Section = $3,449,374.00
    • PW of PCCP Section = $2,098,552.00
  2. Alternate HMA Pavement Section (Contractor)
    • PW of Alternate Pavement Type (HMA) = $4,628,327.00
HMA PW for Future Rehabilitation Work (INDOT)
Age in Years Rehab. Cost $ Present Worth Cost $
3 Joint Seal 191,375.00 $170,131.68
6 Joint Seal 191,375.00 $151,246.44
9 Joint Seal 191,375.00 $134,457.54
12 Joint Seal 191,375.00 $119,532.26
15 Joint Seal 191,375.00 $106,263.74
18 Joint Seal 191,375.00 $94,468.08
20 Mill and Functional Overlay 3,927,083.00 $1,792,269.42
23 Joint Seal 191,375.00 $77,645.88
26 Joint Seal 191,375.00 $69,026.90
29 Joint Seal 191,375.00 $61,364.66
32 Joint Seal 191,375.00 $54,552.96
35 Mill and Resurface 1,864,953.00 $472,607.94
38 Joint Seal 191,375.00 $43,114.00
41 Joint Seal 191,375.00 $38,328.19
44 Joint Seal 191,375.00 $34,073.62
47 Joint Seal 191,375.00 $30,291.32
Total HMA PW Cost $3,449,374.64
PCCP PW for Future Rehabilitation Work (INDOT)
Age in Years Rehab. Cost $ Present Worth Cost $
8 Reseal the Joint 184,287.00 $134,656.71
16 Reseal the Joint 184,287.00 $98,392.34
24 Reseal the Joint 184,287.00 $71,894.32
30 Mill and Functional Overlay 3,968,741.00 $1,223,636.94
33 Joint Seal 191,375.00 $52,454.77
36 Joint Seal 191,375.00 $46,632.10
39 Joint Seal 191,375.00 $41,455.77
42 Mill and Resurface 1,908,559.00 $367,540.62
45 Joint Seal 191,375.00 $32,763.10
48 Joint Seal 191,375.00 $29,126.27
Total PCCP PW Cost $2,098,552.92

PW = F [1/(1+i)n]

Where: F = Future Construction Cost
i = Discount rate (4%)
n = Number of years from year zero

HMA PW for Future Rehabilitation Work (Contractor)
Age in Years Rehab. Cost $ Present Worth Cost $
3 Joint Seal 191,375.00 $170,131.68
6 Joint Seal 191,375.00 $151,246.44
9 Joint Seal 191,375.00 $134,457.54
10 Profile Mill and Functional Overlay 3,659,857.00 $2,472,468.25
13 Joint Seal 191,375.00 $114,934.87
16 Joint Seal 191,375.00 $102,176.68
19 Joint Seal 191,375.00 $90,834.69
22 Joint Seal 191,375.00 $80,751.71
25 Mill and Resurface 1,864,953.00 $699,575.21
28 Joint Seal 191,375.00 $63,819.25
31 Joint Seal 191,375.00 $56,735.08
34 Joint Seal 191,375.00 $50,437.28
37 Joint Seal 191,375.00 $44,838.56
40 Mill and Resurface 1,864,953.00 $388,449.28
43 Joint Seal 191,375.00 $35,436.56
46 Joint Seal 191,375.00 $31,502.98
49 Joint Seal 191,375.00 $28,006.03
50 Salvage Value -621,651.00 -$87,474.14
Total HMA PW Cost $4,628,327.95

PW = F [1/(1+i)n]

Where: F = Future Construction Cost
i = Discount rate (4%)
n = Number of years from year zero

Total Cost (INDOT)
Total Cost Alternative 1: 11 inches PCCP Alternative 2: 13 inches HMA
Agency Cost ($1000) User Cost ($1000) Agency Cost ($1000) User Cost ($1000)
Undiscounted Sum $7,387.04 $0.00 $8,471.29 $0.00
Present Value $2,098.55 $0.00 $3,449.37 $0.00
EUAC $97.69 $0.00 $160.57 $0.00
Lowest Present Value Agency Cost Alternative 1: 11 inches PCCP
Lowest Present Value User Cost Alternative 1: 11 inches PCCP
Expenditure Stream
Year Alternative 1: 11 inches PCCP Alternative 2: 13 inches HMA
Agency Cost ($1000) User Cost ($1000) Agency Cost ($1000) User Cost ($1000)
0
1
2
3 $191.38
4
5
6 $191.38
7
8 $184.29
9 $191.38
10
11
12 $191.38
13
14
15 $191.38
16 $184.29
17
18 $191.38
19
20 $3,927.08
21
22
23 $191.38
24 $184.29
25
26 $191.38
27
28
29 $191.38
30 $3,968.74
31
32 $191.38
33 $191.38
34
35 $1,864.95
36 $191.38
37
38 $191.38
39 $191.38
40
41 $191.38
42 $1,908.56
43
44 $191.38
45 $191.38
46
47 $191.38
48 $191.38
49
50
Total Cost (Contractor's HMA Section)
Total Cost Alternative 1: Alternative 2: 10 inches HMA
Agency Cost ($1000) User Cost ($1000) Agency Cost ($1000) User Cost ($1000)
Undiscounted Sum $0.00 $0.00 $9,447.36 $0.00
Present Value $0.00 $0.00 $4,628.33 $0.00
EUAC $0.00 $0.00 $215.45 $0.00
Lowest Present Value Agency Cost Alternative 1:
Lowest Present Value User Cost Alternative 1:
Expenditure Stream
Year Alternative 1: Alternative 2: 10 inches HMA
Agency Cost ($1000) User Cost ($1000) Agency Cost ($1000) User Cost ($1000)
0
1
2
3 $191.38
4
5
6 $191.38
7
8
9 $191.38
10 $3,659.86
11
12
13 $191.38
14
15
16 $191.38
17
18
19 $191.38
20
21
22 $191.38
23
24
25 $1,864.95
26
27
28 $191.38
29
30
31 $191.38
32
33
34 $191.38
35
36
37 $191.38
38
39
40 $1,864.95
41
42
43 $191.38
44
45
46 $191.38
47
48
49 $191.38
50 ($621.65)

Contact

Jerry Yakowenko
Office of Program Administration
202-366-1562
E-mail Jerry

 
 
Updated: 07/27/2011
 

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