Design Summary
| Date: | January 12, 2016 |
| To: | File 14-033 |
| From: | DMK |
| Subject: | Gordie Howe International Bridge |
| Design Summary for Broadway Drain Outlet |
A. Introduction/Backround.
In October 2015, we authored an Impact Assessment to address the compatibility of the Broadway Drain Outlet and the proposed infilling of an abutting segment of the Detroit River shoreline that is owned by Brighton Beach Aggregates (commonly known as the Kennette property and hereafter BBA). A product of the impact assessment was the identification of three design options for the Broadway Drain outlet, namely:
- Alternative A – Adjustment to the Broadway Drain outlet design if the Kennette Infill is not altered;
- Alternative B – Adjustment to the Kennette Infill if the Broadway Drain outlet is not altered; and,
- Alternative C – Adjustment to both undertakings in the interest of achieving a suitable, compromise design.
The Windsor Detroit Bridge Authority has identified Alternative A (also referred to as Option 1) as their preferred design approach; on the basis that implementation of Alternative A was within their complete control. Option B, which would necessitate that the infill works on the BBA property be substantially amended to accommodate the initial design of the Broadway Drain outlet, has been discarded for the time being.
Alternative C, which represents a compromise design, may be implemented if an agreement can be reached between the various project stakeholders (i.e., City, Kennette, WDBA), allowing the designs to be integrated.
Alternatives A and C have now been designed to a functional state. The balance of this report summarizes the principal characteristics of each design and the respective design rationales.