The city of Boston is spending about $8 million more on flood-proofing than the amount needed to build a new building in the city.
But officials say the money is not enough to protect the city from the effects of the devastating Superstorm Sandy.
The city is using money from the flood insurance program, which is available to low-income residents, to pay for about $3.8 million worth of material to repair damaged buildings in Boston.
In addition to the $1.3 million to repair buildings damaged by Superstorm Irene, officials say they will pay for $1 million more for flood-resistant building materials and $500,000 for a $1,500 grant to help rebuild and rebuild homes that were destroyed by the storm.
Boston Mayor Marty Walsh and Commissioner for Planning and Development Jennifer Condon say the city has spent $15 million on flood insurance for flood victims and $5 million to rebuild flood-damaged properties.
But Walsh and Condon didn’t provide details about the flood-safe materials.
The Boston city office says it has a list of projects underway to make improvements to the city’s infrastructure and facilities.
The flood insurance fund is available only to low income residents.
But in an email to the Globe, the city says it is looking to support flood-resistance and storm-resilience projects for those in need.
The email said that in the last year, the number of Boston residents receiving federal disaster assistance has risen by 60%.
The city says the $7.5 million fund covers costs associated with rebuilding flood-prone buildings.
The amount the city will pay to fix damaged buildings will be about $1 billion, according to the email.
The city says this includes about $400,000 to pay the costs of repairing damaged structures and $800,000 that will go toward the purchase of additional materials for the rebuilding of buildings damaged during Sandy.
Condon said the city also will be able to borrow money to pay people who are temporarily unable to pay their flood insurance.
The amount of borrowing the city plans to make available is unclear.
The Globe asked the city about the extent of borrowing and received no response.