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Southern California Regional Rail Authority (SCRRA) recently awarded a contract to civil, trackwork and structural engineering firm J.L. Patterson & Associates Inc. (JLP) to provide on-call engineering services for the Metrolink commuter-rail system.

The three-year contract could be worth up to $9 million.

JLP has provided design and construction management services to SCRRA since the system opened in 1992, according to a prepared statement.