; (2) a highway freight project carried out on the National Highway Freight Network established under section 167 of title 23, United States Code; (3) a drinking water or wastewater project; (4) a telecommunications project; (5) a project for flood control or waterborne navigation; or (6) a project related to the electric grid. (e) Eligible project costs Grant amounts received for a project under the Program may be used for— (1) development phase activities, including planning, feasibility analysis, revenue forecasting, environmental review, preliminary engineering and design work, and other preconstruction activities; and (2) construction, reconstruction, rehabilitation, acquisition of real property (including land related to the project and improvements to the land), environmental mitigation, construction contingencies, acquisition of equipment, and operational improvements directly related to improving system performance. (f) Project requirements The Secretary may select a project for funding under the Program only if the Secretary determines that— (1) the project will generate national and regional economic, mobility, or safety benefits; (2) the project will be cost effective and have a measurable return on investment; (3) the project will contribute to the accomplishment of one or more of the goals described under subsection (a)(2); (4) the project is based on the results of preliminary engineering; (5) with respect to related non-Federal financial commitments— (A) one or more stable and dependable sources of funding and financing are available to construct, maintain, and operate the project; and (B) contingency amounts are available to cover unanticipated cost increases; (6) the project cannot be easily and efficiently completed without Federal funding or financial assistance available to the project sponsor