(Ex. 2, p. 14).

In sum, after years ofstudy and analysis, MDOT’s experts recommended that: (A) the restriction on Class 1 and 7 should

remain, (B) the restrictions on Class 3 and 8 should be lifted and (3) the

Ambassador Bridge should be materials. In this letter, Recommendations”.

required to provide escorts for all allowable classes of hazardous the foregoing recommendations are called the “MDOT

Subsequently, MDOT issued a second report, which is attached here as Ex. 3. In that report,

MDOT noted that only seven of the approximately 7,085 miles of roadway in Wayne County are restricted routes and that, the proposed changes “modify current route restrictions and add protective measures to reduce risks.” (Ex. 3, p. 4). Thereafter, in J anuary 2014, MDOT declined to approve the MDOT Recommendations.

The foregoing history is provided	to set forth the context for DIBC’s current request to	change
the existing restrictions. Please	consider this DIBC’s formal request to change the	existing

restrictions in a manner consistent with the

MDOT Recommendations made in the 2012

Hazardous Materials Routing Synopsis Report.

Technical

The DIBC has installed a •re suppression system on the information is set forth in response to your speci•c questions Ambassador below.

Bridge.

Add i t ional Sy st em Ca p ac ity

Types and quantities of the placarded non-radiological be using the DIBC as the primary route.

hazardous material expected

The following classes of hazardous materials are currently restricted on the Blue Water Bridge:

1, 5, 7, and 9. With those restrictions in place, Blue Water Bridge staff estimate there to be 2,500 to 3,000 hazmat crossings November 14, 2019 email from Troy Hagon).

per year at the Blue Water Bridge. (Ex. 4, The following classes of NRHM are currently restricted on the Ambassador Bridge: 1, 3, 6.2, 7 and 8. With those restn'ctions in place, Ambassador Bridge staff estimate there to be approximately 1,500 hazardous material crossings per year.

We estimate that the Detroit-Windsor Ferry handles 40-50 trucks hauling hazmat per day or 10,400 to 13,000 per year. DIBC estimates that approximately 50% of the hazardous material traf•c handled by the Blue Water Bridge and the Detroit-Windsor Ferry would elect to use the Ambassador Bridge if the restrictions on Class 3 and Class 8 are lifted.

In 2018, the Ambassador Bridge had 2,593,503 truck crossings.

An increase of

8,000 represents a .3% increase from 2018 truck traf•c on the bridge.