alternate bidding: the west virginia experience 2011virginia concrete conference march 3, 2011...
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Alternate Bidding: The West Virginia Experience
2011Virginia Concrete ConferenceMarch 3, 2011Richmond, VA
Bob LongExecutive Director
ACPA Mid-Atlantic Chapter
Evolution of Alternate Design Alternate Bid (ADAB) Procedures
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)
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
Description: Perpetual pavement design provided
by Industry using Westergaard Equations Design
10” Jointed Plain Concrete Pavement on 4” free draining base
15’ doweled joints 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
10” Jointed Plain Concrete Pavement
4” Free Drain Base
Pavement Typical
ASPHALT PAVEMENT DESIGN
Description: Perpetual pavement design provided
by Industry using PerRoad 3.2 Design Program
13.5” HMA on 4” free draining base Use PG 76-22 polymer modified
asphalt (PMA) binder in top 4.5” and on future overlays
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
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
Pavement Typical
PROJECT NUMBER & BIDDERS
BID
APD-0484(308) (X312-H-93.38)
Kokosing Construction Co., Inc. (PCCP)
34,544,899.90
Hi-Way Paving, Inc. (PCCP) 36,137,190.09Anthony Allega Cement Contractor, Inc. (PCCP)
36,995,205.73
West Virginia Paving, Inc. (Asphalt)
38,072,526.42
McCarthy Improvement Company (PCCP)
41,096,902.30
Cherry Hill Construction, Inc. (PCCP)
44,354,677.45
West Virginia Department of TransportationDivision of Highways
Bid Results - Letting of July 15, 2008
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 PROJECTSWV 10 – 3.7 miles
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 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 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
RECENT ADAB PROJECTS
US Route 35, Putnam County – 14.5 miles 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 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
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. Route 9 - Charlestown - VA line – 3.1 miles paving only
2. Corridor H - Rte. 1 to Mount Storm – 11.8 miles paving only
3. Corridor H - Mount Storm to Parsons - 10 miles grade, drain, & pave
Why ADAB “Works” in WV
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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