If all do, the total cost will run to around 2.2 billion reais a year.
But it also revealed oil wells that were undervalued by some 5.6 billion reais.
The schemes' combined budget is to rise by 25% next year to 5.3 billion reais.
Infrastructure projects require lots of debt, but long-term financing in reais is extremely expensive.
That followed a similar announcement of another 21 billion reais of cuts in March.
Worried about overheating, her government is trimming 50 billion reais from this year's budget.
Since then, the industry has invested hundreds of billions of reais, improving coverage and cutting costs.
There had been speculation that the bank had in mind an annual figure of 10 billion reais.
According to one estimate, by the World Bank, some 35m Brazilians earn less than 73 reais a month.
ECONOMIST: Defeats and victories in Brazil’s war on poverty | The
On December 30th, the government announced emergency tax rises and spending cuts aimed at raising 6.7 billion reais.
Ipanema starts at around two million reais, while renting something similar costs between 8, 000 to 20, 000 reais a month.
It has been able to do this because the treasury granted it two long-term credits totalling 180 billion reais.
It wrote down the value of its shipping fleet by 1.2 billion reais.
Even 20 billion reais may be too little to avert a telecoms crunch.
GDP, high by regional standards, will go up by another 13.3 billion reais.
So Mr Magalhaes's 30% rise would add 5 billion reais a year to the scheme's already large and growing deficit.
According to IPEA, a government-linked research outfit, the BNDES's subsidised interest rates cost taxpayers up to 21 billion reais a year.
For the ones with dividends but without an ADS, there is the added nuisance of converting semiannual payments from reais into dollars.
But even in reais executive pay is growing by double digits a year, says Edilson Camara of Egon Zehnder, a headhunting firm.
The constitution stipulates that no public employee can earn more than a supreme-court judge, whose salary is currently 26, 700 reais a month.
It invested some 3 billion reais in sanitation over two years and beefed up income transfer: Bolsa-Escola now reaches some 5m families.
All told, the Congress spends 6 billion reais a year on staff.
The bank has lent Petrobras, the state oil giant, 25 billion reais.
According to a report in Exame, a business magazine, Anatel thinks the sector needs to invest 240 billion reais in the next decade.
The immediate issue concerns past deals with 24 states whereby the centre refinanced 102 billion reais of their debts over 30 years at 6%.
Last month, for instance, claims that the government had axed the distribution of emergency food parcels forced it hurriedly to find the missing 50m reais.
ECONOMIST: Defeats and victories in Brazil’s war on poverty | The
Stocks, measured in Brazilian reais, are up 55% since January 2007.
For example, the Porto Maravilha, an eight billion reais project due to be completed by 2016, is stitching the revitalised Guanabara Bay harbourfront to the downtown district.
If the government has to backtrack, and charge only the minimum proposed pension contribution, it could lose 2.6 billion reais in revenue in a full year.
But the president offered to support a measure which would grant Ford an annual sweetener of 180m reais, a compromise that Mr Magalhaes declared himself satisfied with.
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