A crash at the intersection in 2009 killed four teenagers.
Traffic had previously been controlled with large stop signs for vehicles traveling on Strickler. Vehicles on County had been able to pass through the intersection unimpeded.
Past accidents prompted calls for a safety audit assessment and enhancements to reduce accidents.
Improvements to sight lines leading up to the intersection were also made, along with paving and drainage improvements.
Funding for the improvements, which cost about $450,000, was secured through the Federal High Risk Rural Road program. Ninety percent of the project was covered by federal aid and the remaining 10 percent provided by Erie County.