Andrew,

I visited the site again this morning with Clay to observe a number of cracks in the Bella bridge deck. While the cracks do not seem to be a big issue today, there is some concern about
their behavior in the future. For instance, will they open up and allow water to infiltrate the deck and help corrode the reinforcement? We are also concerned about the “birdbath” at
the southeast corner of the bridge deck; since the bridge deck slopes at 0.8% to the south, we would expect to find the birdbath located on the approach slab (if anywhere) where the
sidewalk widens toward the bridge centerline.

 

Due to these concerns, we are requesting that Austin provide us with potential solutions to these issues in the form of separate RFIs via Projectmates. We will review each RFI with the
Town and respond as quickly as possible.

 

Feel free to contact me directly should you have any questions or concerns regarding this message.

 

Eric

 

 

Eric S. Christiansen, P.E., SECB

Senior Structural Engineer

 

	

	
HALFF ASSOCIATES, INC.

1201 North Bowser Road

Richardson, Texas 75081

Phone 214-346-6284

Fax 214-739-0095

www.halff.com