A $2.8 million improvement for the Shrewsbury interchange of Interstate 83 is being planned, but it was in the works before Johnson Controls eyed a 64-acre tract in Hopewell Township for relocation of its facility.
Will Clark, chief of transportation planning for the York County Planning Commission, said he just found out earlier this month that a company was looking at the land in the Stonebridge business park off Exit 4 of Interstate 83.
"I don't know what impact that will have," he said.
Transportation officials are not planning a major reconstruction of the interchange but a safety improvement to address traffic that backs up from the exit ramps onto the highway or the shoulder, he said.
Some say it's too early to discuss traffic impacts to the interchange in Shrewsbury Township because Johnson Controls has not yet committed to relocating from Spring Garden Township to southern York County.
Monica Zimmer, a spokeswoman for Johnson Controls, said she could not answer questions about transportation. She said the company is in the preliminary stages of its assessment for a new site.
"We are exploring many, many sites, and no final decisions have been made," she said.
Hopewell Township supervisor David Wisnom said he's only seen one sketch plan for the project. Until the deal is signed, no one is going to know what the potential is.
Talks about traffic and any other issues would arise after that time, Wisnom said. He added that the developer has been paying to maintain the traffic light at Wolfe Road and Route 851.
Wisnom has said that Johnson Controls is eyeing another site in Maryland.
"We're fighting an uphill battle against Maryland, but I think we're going to win," he said.
Meanwhile, transportation officials are working to develop some concepts to address the traffic backing up onto the highway, Clark said.
Mike Crochunis, a spokesman for the state Department of Transportation, said in an email that York County is taking traffic counts this fall and PennDOT is investigating possible improvements, but that no project is proceeding at this time.
Officials do not have a good estimate for the timeline of the improvements.
The Shrewsbury exit is not one of the top congestion areas for the county, Clark said. The top three areas with the most delays are: Church Road in Manchester Township, North Hills Road in Springettsbury Township and Country Club/Rathton roads in Spring Garden Township and York City.
Whether that would change if Johnson Controls moved in remains to be seen, he said.
"It might move it up a little bit on the priority list," said state Rep. Ron Miller, R-Jacobus, who serves on the York Area Metropolitan Planning Organization.
Miller said that even though Gov. Tom Corbett has said transportation funding is a priority, Miller's assuming there will be no new pot of money for the Shrewsbury interchange.
"So if we have to add additional money, it impacts other projects," Miller said.
Staff writer Ed Mahon contributed to this report.