fire separation distance

2009 IBC; Chapter 7, definition of Fire Separation Distance.  My client's rep is an architect who provided the attachment.  Say the adjacent existing buildings are Type II-B, which allow for 10 feet of fire separation distance with no wall ratings.  But historically, they had measured to the midde of the existing road.  Now the local government wants to build this stage in the road.  Per code, the new building is Type II-B, A occupancy, and needs no wall or opening protection, as there is 10 feet to the adjacent property line.

The client rep thinks that because the existing buildings have 10 feet to the centerline of the adjusted clear public way, they too need no protection.  But looking at the attachment, I'm not convinced you can count the same real estate twice.  Any thoughts?  Thanks!  I've added the IBC definition below for your use.

From the 2009 IBC:  FIRE SEPARATION DISTANCE. The distance measured from the building face to one of the following:
1. The closest interior lot line;
2. To the centerline of a street, an alley or public way; or
3. To an imaginary line between two buildings on the property.

Attachments

Original Post

Hey there Brent, hope all is well on the other side of the world.    I am not following how the centerline shown is actually the centerline of the public way.  There appears to be a landing and stair in the public way.  The definition of public way requires it to be 10ft min in width and the stairs intrude into this space.   Also, it appears the public way is on the stage property unless there is an additional PL not shown.  If the PL shown on the plans is the only one then it would appear the public way is an egress  easement and thus I think the stage property could measure to the PL as shown.  I believe the 3-story could measure to the centerline as the Code allows but I am not convinced what is shown is actually the centerline.

Also I noticed that the edge of the public way appears to be the edge of the stage structure and I cannot tell whether the overhang is greater than 10ft from the ground

Thanks guys!  Yep, nice and warm here, beautiful day outside my window right now.  

The stage is placed on one leg of an existing intersection of two streets.  Both streets were previously closed to vehicle traffic.  Now they want to add a stage at one side.  So yes, the street is still the public way, just with a stage located in it.  Yes, in the attachment, the stage (48" high) is shown as the structure, while the roof above projects beyond.  Hope this helps clarify the proposal for you.

Appreciate all the feedback!

Brent

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