The popular stimulus program, which ran through its $1 billion allotment in one week, was granted another $2 billion on Friday to improve fuel efficiency.
The money would pay for an environmental analysis and move the project into its preliminary engineering phase.
A new organization envisions 17,000 miles of high-speed rail by 2030, although its vision differs significantly from state and federal plans.
City and county officials hope to mimic Portland's success and break ground within two to three years, although they admit there may be obstacles.
Oak Cliff residents are teaming with Fort Worth in an effort to get stimulus funds to build a two-mile streetcar line, the neighborhood's first since 1956.
40 states with $100 billion in projects have applied for $8 billion in stimulus money, and Congress is reacting to the huge demand by increasing appropriations.
The popular program, which gives subsidies to those buying more fuel-efficient cars, burned through its $1 billion in just one week and will likely be extended.
The money will maintain the fund's solvency through September 30, when SAFETEA-LU expires. The Senate is expected to vote on the measure within a week.
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