St. Louis (KSDK) – The Gateway Arch is going through some growing pains. The improvements underway this summer have called for extensive detours. So, those in charge of the transformation are working to make sure visitors know the Arch is still open, and visitors seem to be getting the message.

The landmark is the reason Colorado resident Kevin Noble and his two friends stopped downtown on their road trip home from Washington, D.C.

"It wasn't too difficult to find the Arch because it's so big, but the construction was our only obstacle," Noble said.

The construction has been an obstacle for many visitors this summer, and the organization heading up the work has been hearing some complaints.

So, CityArchRiver recently stenciled a new path for pedestrians, and changed road signs around the Arch grounds to make them clearer.

"We needed to go back and tweak and make it a little bit better. But we're flexible and we always want to improve," said CityArchRiver Executive Director Maggie Hales.

The Arch staff is also working with hotels and tour companies to get the word out and circulate maps showing detours. Along major interstates, billboards are up, reminding drivers the Arch is open.

"We're doing our best, and I hope it is helping people find the Arch," Hales said.

And it is helping, according to Arch staff, which says attendance is on track to at least match last summer's attendance. It's another reason those in charge of the work say it will be worth it.

"It is hard to go through construction," Hales said. "But it's a great payoff at the end."

The majority of the work is set to be complete by the Arch's 50th anniversary in October of next year. To see details about the project, and detour maps, check out the CityArchRiver website.

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