Escalation Factors for Highway 35 Betterment

Project Number: OR FS ERFO 2007(1)-11(1)
Project Name: Highway 35 Betterment
Bid Opening Date: May 14, 2010

Base Price Indexes

Fuel

OPIS Report Location: Portland, Oregon

Week / DateFuel  ($/gallon)
1 / April 222.54
2 / April 292.50
3 / May 62.42
4 / May 132.23
Base Price Index2.42

Asphalt Cement

Asphalt Weekly Location: Portland, Oregon

Week / DateAsphalt  ($/ton)
1 / April 19490.00
2 / April 26485.00
3 / May 3492.50
4 / May 10492.50
Base Price Index490.00

Computation approaches used to determine base price indexes

Monthly Averages for 2010

MonthFuelAsphalt
December2.67432.50
November2.48427.50
October2.58430.00
September2.43433.13
August2.29458.50
July2.13467.50
June2.19467.50
May2.21480.63

Computation Approaches Used to Determine Base Price Indexes

Fuel Price Adjustment: The Base Price Index (BPI) is a price index determined by arithmetic average of OPIS publications daily rack prices for the 28 calendar days preceding the bid opening.

Asphalt Cement Adjustment: The Base Price Index (BPI) is a price index determined by arithmetic average for prices in the four "Asphalt Weekly Monitor ®" publications immediately preceding the bid opening.