Last year’s major sewer break in Hollywood — which sent more than 20 million gallons of raw sewage into a canal and neighborhood over three days — ended up costing the city more than $900,000 to clean up.

On Wednesday, the commission will consider spending another $1.2 million to help prevent future problems.

“Unfortunately underground repairs are probably the most expensive things a city does,” Mayor Peter Bober said Tuesday. “But there is no alternative.”

The repairs include lining the 48-inch pipes at their weak spots — along Taft Street between North Park Road and the railroad tracks — to give the line better protection.

The project would take about 90 days and would be done by Lanzo Lining Services.

The repairs are in addition to the money the city has spent since the pipe burst Nov. 16.

Contractors were adding a sewer line along McKinley Street that will connect to the Taft Street line at 24th Avenue.

The Taft Street line connects tens of thousands of customers to the Southern Regional Wastewater Treatment Plant in Hollywood. The added pressure forced the pipe to burst, flooding the surrounding neighborhood with sewage.

In a memo sent Tuesday, Interim City Manager Cathy Swanson-Rivenbark outlined how much was spent on the clean up. The city will recoup the expense from the contractor.

“The city does have recourse against the contractor who was working in the area at the time of the incident,” she wrote in the memo. “However, claims against another party’s insurance, often take months to resolve.”

In the memo, Swanson Rivenbark broke down the costs, which total $938,000, but she adds there may still be some additional costs.

Some expenses included: $24,000 for hotel bills for displaced homeowners, sod removal and replacement sheds and their contents; $115,000 for repairs to the YMCA; $422,000 for land and canal remediation and $193,000 for street and line repairs.

Also on Wednesday’s agenda:

•  The commission will consider giving preliminary approval to an item that would give the city’s Community Redevelopment Agency Board authority to come up with a process to allow murals within the boundaries of the music district in the downtown area. Currently, putting up a mural involves a lengthy permit process, but a recent art movement in the downtown area has prompted city leaders to take a look at streamlining the process.

•  The commission will consider giving preliminary approval to a new commission district map, put together by Florida Atlantic University. Some voter districts shifted, based on population changes from the 2010 census.

•  In a special 10 a.m. meeting, the Community Redevelopment Agency will once again consider approving a lease for a building that would serve as a welcome center for the beach. The lease, which was renegotiated after the CRA board said the cost was too high and the term too long, will now be for two years and cost the CRA about $268,000 for the two-year term.

The regular meeting will take place at 1 p.m. Wednesday at City Hall, 2600 Hollywood Blvd.