RCW 46.68.124(2) provides that the county road administration board shall maintain the county road log for the purpose of computing estimated county road replacement costs and estimated annual maintenance costs for county fuel tax allocations. It further provides that each county shall submit changes, corrections, additions, and deletions (i.e., "updates") to the county road administration board which in turn are subject to validation prior to inclusion in the road log maintained by the county road administration board. This chapter describes the manner in which the county road administration board will administer this responsibility.