Efforts to protect the Miller’s Run covered bridge have been slowed by inflation. Rising steel costs have delayed plans to build overhead clearance barriers on either end of the bridge, Town Administrator Justin Smith told the Select Board on Monday. The barriers would prevent vehicles that exceed the 11-foot-9 height limit from colliding with the historic 144-year-old span. The Select Board budgeted $16,215 to design, build and install the barriers. That amount was approved by Town Meeting voters this month. However, Smith said, the design and materials cost had ballooned to $27,000. “Steel prices have gone up 200 percent,” Smith told the Select Board. Taking installation costs into consideration, including foundation construction and crane rental, the total project cost would be at least $30,000. While it may be possible for the Select Board to scrape together additional funds from other areas, they have agreed to pause the project.