BOSTON — The Rourke Bridge over the Merrimack River in Lowell was intended as a temporary span when it was installed almost 40 years ago.

Congresswoman Lori Trahan remembers driving cautiously over it in her dad's pickup truck when she first got her license, and said that as an adult training for road races she would "sprint across the bridge because I looked up at the chain link-covered pedestrian lane and it just instantly felt like a death trap."

The two-lane bridge is critical to major regional employers like the University of Massachusetts and Lowell General Hospital, UMass President Marty Meehan said, but crossing it is tough for ambulances headed to the emergency room.

The Rourke Bridge, Gov. Charlie Baker said Thursday, "is in some ways the perfect project and the perfect place to kick off what we expect and anticipate will be an enormous amount of activity over the next 10 or 12 months."

At a UMass Lowell building not far from the bridge in question, Baker said a $170 million project to replace the existing temporary link with an expanded and permanent bridge is one piece of a plan to invest $3 billion in bridges across Massachusetts over the next five years.

The Baker administration published an initial list of 146 bridge repair projects — involving 181 individual structures — eyed for that $3 billion program, which will use a combination of money from the infrastructure law President Biden signed last November and $1.25 billion from a next-generation bridge program in last year's transportation bonding bill.

Transportation Secretary Jamey Tesler said the administration will file a new transportation bond bill "in the coming weeks."

Counting both new and reauthorized funding, Baker said Massachusetts expects to receive about $9.5 billion through the federal law over the next five years — a time period that will extend far beyond Baker's final term and deep into his successor's administration.

That pool of money, according to Baker's office, includes $5.4 billion in highway formula funds, $2.2 billion in MBTA formula funds, $591 million in Regional Transit Authority formula funds, and $1.4 billion in formula-based and discretionary funding for environmental work.

"For those of us in the infrastructure business, today is like Christmas," highway administrator Jonathan Gulliver said. "We've been waiting for this for a very long time and whether it's a bridge replacement, a clean water project or a brownfield remediation, this law will touch every corner of the commonwealth over the next five years."

The Construction Industries of Massachusetts said Wednesday that it had sent a letter to Senate President Karen Spilka and House Speaker Ronald Mariano, calling for the state to prioritize bridge repairs.

CIM executive director John Pourbaix said in the letter that Massachusetts has "substantial infrastructure funding available" through the federal law, last session's $16 billion bond bill, and federal pandemic relief programs.

"An aggressive bridge program — like the Accelerated Bridge Program several years ago — must be prioritized," he wrote. "Every community across the Commonwealth has bridges in need of repair and/or reconstruction. Addressing a handful of bridges across the state in piecemeal fashion will not get us out of the federal penalty nor will it ensure the safety of the public. Our bridges must be a priority."

Thursday's event in Lowell was punctuated by expressions of gratitude for city, state and federal officials for their efforts on the Rourke Bridge, including plaudits for Trahan, a Westford Democrat who called her vote in favor of the infrastructure package "the easiest vote" she's cast since she was elected in 2018.

Trahan, who ran unopposed in 2020, has a challenger this cycle in Fitchburg Republican Dean Tran, a former state senator. Tran, who launched his campaign with a Wednesday evening event, said he is "running to give the voters an alternative to the status quo, to big government and the broken promises and fiscal policies of the Washington Democrats."

Drawing laughs and applause, Baker described Trahan as "let's just say, aggressive, and not just on this process but on many other issues that involve her congressional district as well."

Polito, who like Baker is a Republican, said Trahan is "obviously a very effective voice in Washington."

"What I love about Congresswoman Trahan is she's grounded in her community, and she's effective in Washington because she understands what the priorities and needs are for the people here at home," Polito said.

— Katie Lannan, State House News Service

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