>>/37093/
> 23:00-00:00 Kruel exchanged his last words with the President [...] Goulart answered [...] "Put your troops in the streets and betray me openly" which he promptly did. 
> At 15:00 a truce was declared.
So the whole conflict was resolved in about 15 hours?
I'm still not finished btw, but the map you put together  >>/37104/ looks solid.
One of the highway bridges that were mined was Viaduto da ferrovia, which you ware able positively identify? How many other possible locations are there?