This is the second of Cianbro’s renovation contracts on the Carlton Bridge. MDOT’s plans call for the gradual replacement of spans of the Carlton Bridge until it is only a one-deck rail, which is estimated to be completed in 15 years, with the next step in the renovation occurring six years from the completion of the current work.
Scope of Work
Cianbro completed Stage One of repair and refurbishing work on the 2,100 linear foot, vertical lift span railroad bridge over the Kennebec River.
- Blasted the steel using recycled steel shot as the abrasive
- Stripped and repainted (primer coat, mid-coat, and top-coat) bridge segments—lift spans two, three, and four
- Upgraded the rail crossing signal system
- Upgraded the rails
- Installed new maintenance platforms
- Repaired deteriorating structural steel members and lancing bars on the bridge and upgrading the tracks
- Installed two temporary counter-weight ropes
- Installed two permanent counter-weight ropes
Lean, Innovative, and Unique Project Solutions
All of the work was performed on a weekly schedule, with the track fully restored and inspected each Friday in order for Maine Eastern Railroad (MERR) to operate its equipment each weekend. The entire project is was performed with a crew of 13 team members and three trade partners.