1031 - options when not able to close in 180

[Robert Cuthbertson]

I have a property that I sold back in February i profited $150k, I already had the replacement property under contract before selling. However this is a ranch development taking 4000 acres and converting to mini ranches. The development is running in to some delays due to permitting and requirements as well as the slow moving government getting this approved so we can actually close. The hope was for late May but it’s looking like September at the moment. My 180 day mark is beginning of august. 

What options do I have, if any, to avoid this tax burden on the $150k? 

Thanks for any advice!