Fast-Track Concrete Pavement - Virginia Department of Transportation

Report
Alternate Bidding: The West
Virginia Experience
2011Virginia Concrete Conference
March 3, 2011
Richmond, VA
Bob Long
Executive Director
ACPA Mid-Atlantic Chapter
Evolution of Alternate Design
Alternate Bid (ADAB) Procedures
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Joint efforts began in the Fall 2007 including
WVDOH, FHWA and industry.
Formal procedures implemented in July 2008
All procedures finalized June 2010
CORRIDOR H – US 48
MOOREFIELD (July 2008)
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First “formal” Alternate Bid pavement project
10.6 miles
4-lane arterial
No life cycle cost adjustment (C factor)
Included asphalt escalator
Asphalt by the ton and PCCP by the SY
CONCRETE PAVEMENT DESIGN
Pavement Typical
10” Jointed Plain
Concrete Pavement
4”
Free Drain Base
Description:
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Perpetual pavement design provided
by Industry using Westergaard
Equations Design
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10” Jointed Plain Concrete Pavement
on 4” free draining base
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15’ doweled joints
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Full depth tied concrete shoulders
Assumptions:
•Analysis period = 50 yrs
•Initial performance period = 22 yrs
•Rehab performance period for CPR = 14 yrs
•Rehab performance period for Overlay = 14 yrs
•No Salvage value @ year 50
•Rehab #1 – diamond grinding and 7.5% joint patching
•Rehab #2 – overlay w/2” skid resistant mix w/PMA and 2% joint
patching
ASPHALT PAVEMENT DESIGN
Pavement Typical
2”
12.5mm skid w/76-22 AC
2.5” 19mm mix w/76-22 AC
4”
25mm mix w/64-22 AC
5” 37.5mm mix w/64-22 AC + 0.5% AC
content
4”
Free Drain Base
Description:
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Perpetual pavement design provided
by Industry using PerRoad 3.2 Design
Program
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13.5” HMA on 4” free draining base
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Use PG 76-22 polymer modified
asphalt (PMA) binder in top 4.5” and on
future overlays
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Increase AC by 0.5% in bottom 5”
Assumptions:
•Analysis period = 50 yrs
•Initial performance period w/PMA = 22 yrs
•Rehab performance period w/PMA = 14 yrs
•No salvage value @ year 50
•Rehab #1 – mill and resurface w/2” skid resistant mix w/PMA
•Rehab #2 – mill and resurface w/2” skid resistant mix w/PMA
West Virginia Department of Transportation
Division of Highways
Bid Results - Letting of July 15, 2008
PROJECT NUMBER & BIDDERS
BID
APD-0484(308) (X312-H-93.38)
Kokosing Construction Co., Inc.
(PCCP)
Hi-Way Paving, Inc. (PCCP)
34,544,899.90
Anthony Allega Cement
Contractor, Inc. (PCCP)
West Virginia Paving, Inc.
(Asphalt)
McCarthy Improvement Company
(PCCP)
Cherry Hill Construction, Inc.
(PCCP)
36,995,205.73
36,137,190.09
38,072,526.42
41,096,902.30
44,354,677.45
SECTION 690
MAINLINE PAVEMENT
690 – GENERAL
690.1 - DESCRIPTION:
This Special Provision shall define the requirements to construct
mainline pavement, which includes roadway pavement and full depth
paved shoulders, to the limits as shown by the contract plans. The
contractor shall construct one of the pavement systems as described
herein and by the contract plans.
CONCRETE PAVEMENT SYSTEM:
A concrete pavement system shall be constructed as defined by the
concrete typical section(s) and all other documents referenced in the
contract plans. This work and materials shall include jointed plain concrete
pavement, free draining base, fabric for separation, subgrade, and
subgrade preparation
ASPHALT PAVEMENT SYSTEM:
An asphalt pavement system shall be constructed as defined by the
asphalt typical section(s) and all other documents referenced in the
contract plans. This work and materials shall include asphalt wearing
surface, asphalt base courses, free draining base, fabric for separation,
subgrade, and subgrade preparation.
.
RECENT ADAB PROJECTS
WV 10 – 3.7 miles
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4-lane arterial on new alignment – pre-graded
10” PCCP vs. 12.25” Asphalt
Bid by the SY of Mainline Pavement
4 of the 6 bidders bid concrete and the low concrete bid
was 17% lower than asphalt
Low SY price was $60.00
King Coal US52 – 9.5 miles
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Pre-graded and bid by the SY of Mainline Pavement
10” PCCP vs. 11.5” Asphalt
5 out of 6 bidders went concrete and the concrete bid
was 3% lower than asphalt
Low SY price was $48.45
RECENT ADAB PROJECTS
WV Corridor H, US 48 – 3.3 miles
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4-lane arterial on new alignment – pre-graded
10” PCCP vs. 13.5” Asphalt
Bid by the SY of Mainline Pavement
4 of the 5 bidders bid concrete and the low concrete bid
was 29% lower than asphalt
Low SY price was $46.40
WV ADAB Bid Results
Millions of Dollars
45
40
35
30
25
Asphalt
Concrete
20
15
10
5
0
Corridor H
2008
Route 10
2009
Route 52
2009
Corridor H
2010
RECENT ADAB PROJECTS
US Route 35, Putnam County – 14.5 miles
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Design build – lump sum bid
4-lane arterial with structures on new alignment – grade,
drain, pave & structures
Bid by the SY of Mainline Pavement
10” PCCP vs. 12.5” Asphalt
Four proposers – 3 confirmed use of concrete pavement
Successful team went with concrete
RECENT ADAB PROJECTS
WV Corridor H, US 48 – 6.0 miles
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l
l
l
l
l
Design bid build
4-lane arterial with structures on new alignment – grade,
drain, pave & structures
Bid by the SY of Mainline Pavement
10” PCCP vs. 12.5” Asphalt
Low bidder went with concrete
Low SY price was $44.50
THE RESULTS
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8 out of 9 projects went concrete
when bid as an alternate to asphalt
On these projects about 80% of the
bidders have bid concrete and all
have had at least 4 bidders
WVDOH has saved $9,800,000 just on
the four paving jobs alone over the
low asphalt bids.
UPCOMING ADAB PROJECTS
1.
2.
3.
Route 9 - Charlestown - VA line – 3.1 miles
paving only
Corridor H - Rte. 1 to Mount Storm – 11.8 miles
paving only
Corridor H - Mount Storm to Parsons - 10 miles
grade, drain, & pave
Why ADAB “Works” in WV
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WVDOH senior management support
Strong new construction program
Equivalent designs
Economized PCCP design (no seal, no
dowels in shoulder, no cure on CTOGB
Most asphalt work controlled by one
company
Alternate Design
Alternate Bid
Questions?????
THANK YOU!
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