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Updated August 4, 2011

Items: 202 (Structure Removed and Portions of Structure Removed, Approach Slab Removed), 203 (When used for Mechanically Stabilized Earth walls at bridge abutments, 503, 504, 505, 506, 507, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 522, 523, 524, 526, 603 (3-sided flat-top and arch structures), 840, 842, 843, 845, 847, 848, 849, 883, 885, 892, 893, 894, 898.



509 Epoxy Coated Reinforcing Steel

General – The Designer and Checker have missed bars in design and the error is later found during prebid or construction. Sometimes the error is associated with the connecting bars for part width construction project, but this is not always the case.
Recommended Action: Designers and their Checkers should account for all bars and mechanical connectors prior to Stage 3 plan submission. The District does not check this.




Conflicts With Existing Footings Found During Construction

General – Contractors are running into existing footers and abutments that are not shown on the plans. This can cause delays during construction. 

Recommended Action: Designers should not assume the dimensions of existing footings match the existing plans.  When the actual dimensions of a pier footing are critical, then the corners and edges of the footing should be located in the field.


Removal of existing Coatings from Concrete Surfaces


General - The existence of a concrete coating was not identified when a new coating was to be applied to the concrete surface.

Recommended Action: The designer should confirm the existence of coatings during their field review.





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