4. EXISTING RESTRICTIONS

The State of Michigan currently has nine thoroughfares designated as restricted hazardous materials routes. Four of these routes are located in Wayne County and include:

Ambassador Bridge [Detroit] from Porter Street

to Canada [Windsor]	Classes	1‘
3' 7 and 8			Windsor Tunnel [Detroit] from Jefferson Avenue to Canada [Windsor]	t_JL’PHNi	Rt
ti“-
13l|¥1t3ff§			State Route M-IO [Detroit] from 8 Mile Road [South] to Wyoming Road			ti“-
State Route NH 0 [Detroit] from Howard Street to Woodward Avenue [Under Cobo Hall
(approx. 1 mile)]

1

3' 7 and 8

Classes 1' 3' 7 and 8

and 3

The aforementioned routes in Wayne County and the pertinent restrictions are included in the NHMRR, the national repository for both NRHM 0nd Radioactive Materials (RAM) routes.

5. REASONS FOR REVIEW

On Nov. 20, 2008, MDOT received on official [tequest from the Detroit International Bridge Co. (DIBC) to change the NHMRR and initiate the process to modify Current restrictions regarding the transportation of certain hazardous materials across the Ambassador Bridge in Wayne County. Subsequently, MDOT elected to review all existing hazardous materials routes in Wayne County.

On July I 3, 2010, MDOT received on additional request from the DIBC (while the review was pending) proposing the r'estrictions be modified to allow the transport of specific hazardous materials to include escort vehicles accompanying the primary carrier to enhance safety.