In those cases when a county desires to combine two or more adjacent RATA funded projects into a single construction contract, the county, prior to advertising for the construction contract, or prior to commencing construction should any of the projects be scheduled for completion by county forces, must make a formal written request to the county road administration board to combine the projects into a single project, assuring that the original prospectus work will be accomplished as originally proposed or as previously revised by the county road administration board, regardless of the applicable maximum project RATA contribution.

Upon receipt of a letter of request to combine, and consideration and approval by the director of the county road administration board, a revised CRAB/county contract will be prepared and sent to the county for its execution and returned in the same manner as for the original contract(s). Projects shall be considered adjacent if they have a common terminus.