The Seattle Department of Transportation has released the following information on tomorrow's procession and memorial service for Officer Timothy Brenton:

The city of Seattle reminds roadway users that a memorial procession along city streets for Seattle Police Officer Timothy Brenton will be held on Friday. Approximately 1,000 to 1,500 vehicles will depart at 9 a.m. from the University of Washington and will travel to a service for the slain officer at Key Arena.

During the procession, which is expected to last from 9 a.m. to noon, other traffic will not be allowed on the route and will not be allowed to cross it, including pedestrians and bicyclists. The Seattle Department of Transportation advises travelers to expect severe congestion near its path.

The state Department of Transportation will close the east- and westbound SR 520 on and off ramps to Montlake Boulevard NE at 8:50 a.m. to allow the procession to travel south on the boulevard. The ramps will reopen after the procession has passed. Also, traffic exiting southbound I-5 at Stewart Street will not be allowed to continue onto Stewart but must turn onto Eastlake Avenue E or John Street.

Parking will not be allowed along the route and temporary "No Parking" signs have been emplaced. Seattle Police Department officers will manage all intersections for the procession. 1st Avenue N (Denny to Mercer) and Mercer Street (1st to 5th avenues N) will now reopen once the procession passes. SPD will close Thomas and John streets (between 1st and 2nd avenues N), and Warren and 2nd avenues N (between Denny Way and Thomas St) from 9 a.m. to 4 p.m.

The public memorial service at Key Arena will begin at 1 p.m., with doors opening at 11 a.m. No formal procession is planned after the ceremony.

For more details on the procession and to view a map, click here.