Because the METRO Green Line Extension appears complete in many places, many have reasonably wondered why it will take over a year of testing before they can begin riding. The 14.5-mile extension is scheduled to open in 2027.
“The challenge is it kind of looks like it’s done, but it’s not done,” Green Line Extension Project Director Jim Alexander said. “There’s still a lot of work that needs to be completed before the public can be invited to ride.”
Here’s a look at what’s ahead as testing continues.
What’s being tested?
During testing, contractors will ensure the systems used to power trains and signals, guide train movements, and detect irregularities are working as intended independently and together. Tests will also ensure grade crossing equipment that alerts people of approaching trains is working properly.
As these tests are completed, test trains can begin operating along the corridor to ensure proper clearance. Test trains will eventually help determine travel times for scheduling purposes. Testing is also a way to help prepare staff who will operate and maintain the line.
In all, some 4,000 tests will be completed before the Green Line Extension opens in 2027.
Why is testing important?
Testing is essential for ensuring the safety, reliability, and efficiency of the light rail system before passenger service begins in 2027.
Is anything being done to accelerate progress?
Yes! Testing is beginning in segments where construction has been completed while work largely related to the Kenilworth LRT Tunnel continues in Minneapolis. As overhead wiring and other equipment is installed in 2026, testing will extend to the full length of the corridor. Testing is beginning in completed segments to ensure the Green Line Extension stays on pace to open in 2027.
What else is happening in 2026 to prepare for the 2027 opening?
Hundreds of people will be needed to support the Green Line Extension, including operators and maintenance staff. Efforts to hire and train these workers are ongoing. In 2026, Metro Transit will also be advancing plans to strengthen bus connections to Green Line Extension stations and to engage and educate people in communities along the corridor about these future service improvements, rail safety and more.
Play it safe!
While testing is underway, trains will become increasingly active along the Green Line Extension corridor. Remember to obey all traffic signals, stay off tracks and cross only at designated crossings. If you spot a potential safety issue, contact the 24-hour hotline at 612-373-3933. For emergencies, always call 911.