2. A
NEW
APPROACH

3. WHAT CAUSED THE MAINE DOT
TO CONSIDER CBE?
LACK OF COMPETITION
VOLITILE MATERIAL COST
LACK OF FUNDING
CONTRACTOR TAKING ADVANTAGE OF LUMP SUM ITEMS AND ERRORS IN PLANS
INCREASE IN NUMBER AND COST OF CONTRACT MODIFICATIONS

6. WHY SHOULD
MAINE DOT
USE CBE

7. Reviewing the plans for constructibility will create better plans and will result in better prices.
Increase Credibility of the Department
Review and Verify bid Quantities and Specifications
Market Analysis
Material Cost Analysis
Review Contract Documents from Consultant Design Firms
Assist in the defense of claims
Ability to question contractors bidding practices
Train MDOT designers and construction personnel
Assist Residents in validating contract modifications

8. EXAMPLES OF
MAINE DOT
COST BASED ESTIMATING

9. Eliminate Existing 600 mm CMP

11. Cost Estimate Report
The additional estimated cost of using PGAB in lieu of the traditional PGAB for a MDOT project located in Jackman and Long Pond TWP, Maine.
February 2006

12. AN EXAMPLE OF A SUBTLE UNBALANCE BID;
A $10 MARK-UP COST $30,000
THE 3,000 HRS OVER-RUNS 37% TO 4,167 HRS
THE $30,000 INVESTMENT RESULT IN A $41,670 RETURN

16. 206.061 Structural Exc-Below Grade;
5,850 $8/cy = $46,800