Calculation of Motor Vehicle Fuel Tax Distribution Factors for 2010 and 2011. Presented By: Don Zimmer Road System Inventory Manager Washington State County Road Administration Board. ROAD NEEDS ADDRESSED BY THE CURRENT COUNTY GAS TAX FORMULA.
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Presented By: Don Zimmer
Road System Inventory Manager
County Road Administration Board
1/39 TO EACH COUNTY
Annual Maintenance Cost
1/25 Replacement Cost
* Includes all roads, bridges, ferries
Federal Forest Funds +
Actual County Road Levy Amount
State Timber Excise Tax
Island Counties Refund
#1 Equal Distribution Factor (10%)
This is reflected in the “equal” portion.
This category addresses needs that are independent of road use, road miles, or financial ability.
This factor addresses the minimum fixed costs of “doing business”.
10% divided by 39 Counties = .2564%
#2 Equivalent Population Factor (30%)
The best indicator of road use is the number of vehicle miles traveled.
Sufficient and accurate traffic counts for all roads are not available, nor are they likely to be.
The original basis for this information was “registered motor vehicles”.
Since 1982, “equivalent population” is used for this portion of the formula.
#3 Annual Road Cost Factor (30%)
The greater the number of road miles, the more it costs to construct and maintain the roads.
The original formula based this on “trunk miles”, which were school bus and mail routes.
Since 1982, the formula uses all road miles, divided into categories, with costs for each category, plus bridges.
#4 Annual Needs Factor (30%)
The less the ability to raise local funds for roads, the greater is the need for state support.
For purposes of the formula, the only independently-certified “local” road funds are: