The concerns were raised after the city copped more than 25 millimetres of rain in half an hour on Friday, leaving the stretch of Forsyth Street between the Sturt Mall and Marketplace flooded.

The flooding has been an issue for decades, according to one of the street's shop owners, who said something needed to change.

Wagga City Council said while it had addressed the problem in the past, it was "investigating" other options of further reducing flooding.

Forsyth Street's Beauty Worx owner Katrina Neiberding said the issue affected parking and customer safety.

"We've seen that many cars flooded over the years, we've seen them float away," she said.

"I've been in business at this shop for 17 years now and we've watched it happen time and time again."

Ms Neiberding said she felt the design of the road played a part in endangering road users.

"The traffic island in the middle of the road means cars can't turn around once they're on it, once you're at the traffic lights you don't have a choice but to keep going," she said.

While she hoped to see the problem fixed, Ms Neiberding said she "wouldn't hold her breath".

"I believe it was built on swamp land or a flood plain, and customers I've had over the years have always had the same complaint," she said.

"It's been an issue for so long and it would cost too much money to fix, so I'm not getting my hopes up."

Council's Director of Operations Warren Faulkner said while the city's CBD flood levee was in place, it did not work to stop localised flooding on Forsyth Street during weather events like that on Friday.

He said council had tried to resolve the issue previously by restricting the pipes upstream at Bolton Park to flood the sports ground before overflowing to the road, but the restriction only worked to a certain point.

"Previously the car park under the Marketplace would fill up with stormwater overflows," he said.

While the car park is at a lesser risk of flooding now, Mr Faulkner said council also had plans to resolve Forsyth Street's flood risk further.

"Council has recruited new stormwater engineers who will undertake some investigations of this catchment to determine if there are further opportunities to improve stormwater management in this catchment," he said.

Eco Living and Gifts owner Chelsea Martin had also experienced the damage of floodwaters along Forsyth Street where her business is located, and said something needed to be done sooner rather than later.

"[The flood water] came through the shop last time we had heavy rain, through the front door, so it's definitely a risk," she said.

"We were lucky this time, I went down to check on Friday night with all the rain and thankfully it hadn't flooded the shop, but you never know."