(Updated at 5 p.m.) Crossing Four Mile Run on Columbia Pike on foot or bike can be nerve-wracking, with scarcely any space separating pedestrians from the busy street. A new project set to get underway in a few months should make that crossing a little easier.

The Columbia Pike Four Mile Run Bridge Pedestrian Enhancements project will bump out the northern sidewalk along westbound traffic to 10 feet, double the current five feet. Vehicle travel lanes will, in turn, be slimmed down.

The project also will add lighting to the northern side of the bridge.

There is currently nothing except the curb separating pedestrians from vehicles, but the project will add guardrails in spots to help improve safety.

“The sturdier guardrails will be installed at the approaches [but] not on the bridge itself,” said county transportation spokesman Eric Balliet. “The expanded sidewalk will remain 9″ tall to provide protection for pedestrians.”

Balliet said there’s no word yet on when the improvements will be completed.

“The project is currently in design,” he said. “Implementation of the bridge enhancements is expected this fall, but we don’t yet have a start or end date for the work.”

The project arose out of public feedback from the Columbia Pike west end project, in which local residents said the sidewalks were too narrow and the too poorly lit to feel safe traveling along the bridge at night.

Images via Arlington County