Harbor improvement projects.

(b) All contracts are subject to final negotiation of the scope and budget for a given project. Contracting periods may vary depending on each project. Payments shall be made on a reimbursement basis for deliverables completed no later than the dates of service of an executed contract. Appropriate back-up information shall be included with each payment request indicating that services have been rendered. The authority may elect to provide part or all of the funds necessary as an upfront payment, provided funds are held in a separate, noninterest bearing account and are expended not later than sixty days after such funds are provided. (c) Harbor improvement projects include the preparation of plans, studies and construction for the alteration and improvement of various state, municipal and other properties in or adjacent to the waters of the state, for the purpose of improving the economy and infrastructure of the state.