The cost of the Gold Line rapid-transit bus project has jumped by $41 million, with the addition of new bridges, walkways and all-electric buses.

The project — now costing $461 million — will run a bus route from St. Paul to Woodbury.

The additional features were approved by the Corridor Management Committee of Metro Transit, which is managed by the Metropolitan Council.

The expanded proposal must be approved by Ramsey and Washington counties, according to Washington County Planning Director Jan Lucke.

Lucke said that cities and counties along the Gold Line requested many of the changes. Federal sources are expected to pay about 45 percent of the cost, and local governments will pay the rest.

“There is a lot of great community benefit for the additional scope that is proposed,” said Lucke.

Before the new features were added, the cost was projected to be $420 million.

The extra $41 million would pay for:

Buying all-electric, non-polluting buses.

Replacement of the Fourth Street bridge over Interstate 694 in Oakdale.

Pedestrian bridges along Interstate 94 at Maple Street and McKnight Road in St. Paul, and Century Avenue in Maplewood.

New walkways and trails in seven locations.

The Gold Line will start in Woodbury, cross a new bridge over Interstate 94 into Oakdale, then wind through Maplewood.

It will continue to St. Paul’s Union Depot and then make a two-mile loop through the downtown area.

The buses would travel at 45 mph, mostly on their own dedicated roadway. They stop every seven minutes during rush hours.

Officials expect to the project to be completed by 2024.