Level 3 Screening: An Important Step
in the Tappan Zee Bridge/I-287
Environmental Review
- Alternatives Analysis for Rehabilitation or Replacement of the
Tappan Zee Bridge Report - Transit Mode Selection Report
A list of locations at which hard copies may be reviewed.
As part of the Draft Environmental Impact Statement (DEIS) a third level of screening has been completed (Screening levels 1 and 2 occurred during the Alternatives Analysis phase). Level 3 Screening was used to make decisions on the Rehabilitation or Replacement of the Tappan Zee Bridge and the Transit Mode.
Technical Documents
Alternatives Analysis for Rehabilitation or Replacement of the
Tappan Zee Bridge Report
To determine whether the Tappan Zee Bridge is to be rehabilitated or replaced, a series of potential options has been developed and evaluated using the relevant engineering, environmental, transportation, and cost criteria.
- Options for a rehabilitated bridge considered allowance for transit modes on a bridge that is either rehabilitated and widened, or rehabilitated and supplemented by a parallel bridge.
- Options for a replacement bridge also considered a range of transit modes as well as a single- or dual-level structure.
Transit Mode Selection Report
The Transit Mode Selection Report documents the analysis performed that compares Commuter Rail Transit, Light Rail Transit and Bus Rapid Transit and determines the mode(s) that best meet goals and objectives of the project. It also identifies significant differentiators and the major issues associated with the modes under consideration.
The outcome of these decisions will now help determine the alternative configurations and methodologies for assessment in the DEIS (more information about alternatives and methodologies used can be found in the February 2008 Scoping Update Packet).
A list of locations at which hard copies may be reviewed.
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