Washington State counties are required to maintain a complete inventory of all county roads, assuring the capability to evaluate and compare the transportation needs and capabilities across the state, thus providing a high level of accountability both by individual county and statewide (WAC 136-60).
Each county shall be responsible for maintaining current information regarding its Road Log and, no later than May 1st of each year, shall submit an updated Road Log for its complete road system with all data elements as of December 31st of the preceding year. This annual update must be on computer-readable medium and written in the computer database application software format as prescribed by the County Road Administration Board. All updates involving changes in control fields must include supporting documentation as required in WAC 136-60-050
Under state law gas tax control field information is collected to help the County Road Administration Board estimate road replacement and maintenance costs for county fuel tax allocations. Control fields are those fields utilized for the computation of gas tax allocations in accordance with RCW 46.68.124.
The control fields are: Unique identifier (county road number, beginning milepost, ending milepost), jurisdiction, length, function class, surface type, surface width, right and left shoulder type, right and left shoulder width, and average daily traffic volume. All control field updates are subject to review, approval and must be validated by the County Road Administration Board.
All control field updates will be subject to review, approval and acceptance (i.e., "validation") by the County Road Administration Board. This process will involve reviewing the submitted documentation and conducting spot-checks as may be necessary. All such updates which are reviewed, approved and certified by the CRABoard on July 1st of each year will be entered into the master County Road Log. Non-control field updates will be entered into the master County Road Log file without review. The master County Road Log as of July 1st of each year will be utilized by the County Road Administration Board for general informational purposes and:
The County Road Administration Board will validate each update of a road log segment that involves a change in a control field (including additions or deletions of road segments). Documentation necessary to support control field changes is as follows:
Function class - Notice of FHWA approval from WSDOT.
Pavement type - Statement signed by county engineer with list of pavement type changes.
Responsible agency - The responsible agency is the legislative authority of the appropriate governmental agency with the authority to make the decision required for the action, or the state or federal government person authorized to approve changes.
Addition of mileage - Official document signed by responsible agency authorizing and describing the circumstances of the addition. For example, additions can occur through county legislative approval of new plat, construction/reconstruction on new alignment, or a change in jurisdiction.
Deletion of mileage - Official document signed by responsible agency authorizing and describing the circumstances of the deletion. For example, deletions can occur through legislative approval of vacations or a change in jurisdiction.
Traffic volume - Statement signed by county engineer with list of segments affected by change in traffic volume.
All changes to a control field will be located on appropriate map(s) with sufficient detail to identify the location of each change. All map(s) furnished in support of control field changes will be forwarded by the County Road Administration Board to WSDOT for future reference and use.
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