Availability payments are made to a private concessionaire by a public project sponsor based on project milestones or facility performance standards in exchange for particular services. Federal-aid grants may be used to pay the capital portion of availability payment installments. Availability payments are currently being used on the I-595 Corridor Roadway Improvements project in Broward County, Florida. Further detail on availability payments is available at the Transportation Finance Clearinghouse.
Pass-through tolls (also known as shadow tolls) are per-vehicle or per-vehicle-mile fees paid by a state or local agency or authority to a private concessionaire as reimbursement for particular services. Federal-aid grants may be used to pay pass-through toll capital reimbursements. Further detail on pass-through tolls is available at the Transportation Finance Clearinghouse.