From the Field – Support of Excavations

Kimberly Murphy

As 2016 will be a year of heavy construction administration, we’ve taken the opportunity to learn from each other and share our experiences in a bi-weekly office forum. One recent topic that has emerged from a change in the DOB application approval process is Support Of Excavations (SOE).

battleSOE’s are a Department of Buildings application filed to describe the design, means, and methods for excavating the site in preparation for the new construction. In our experience prior to last year’s filings, the SOE had not been a requirement prior to approval of the New Building (NB) application, leaving this application in the hands of the General Contractor as part of the requirements in pulling the Construction Permit. Now that the DOB is requiring the SOE to be submitted along with the NB prior to approval, the architects have become involved in this process and the SOE design, which is prepared by a geotechnical or other structural consultant to the Architect or Owner, and becomes part of the Contract Documents. Essentially the SOE design becomes another trade consultant to coordinate whose design has impact on cost and schedule. Including the consultant earlier than later in the design process and coordinating with the Structural Engineer has been key. It’s critical that we understand the impact of the proposed SOE design, the proposed impact SOE ESKWon the adjacent properties, and the resultant costs.

The cost associated with the SOE work is significant, and as with any trade, there are several ways to skin the cat. The SOE design that goes out to Bid, could be subject to value engineering and is a way that submitting Bidders can propose to cut costs. This could mean revising the consultants’ design or even replacing the SOE application and superseding the design professional.

Even once the SOE and the NB are approved and the GC has permits in hand, there is no guarantee that things will sail smoothly. Due to unforeseen below-grade conditions, the SOE design is likely to change—possibly many times. As with all approved DOB applications, the SOE then needs to be amended to reflect the updated design.

We all know that getting out of the ground is more than half the construction battle, so being more familiar with the SOE process has become something worth talking about. Our internal office discussions have been crucial for furthering our knowledge.  Any thoughts or experience with SOE? Feel free to comment or contact us!

Happy digging!

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