Life Cycle Cost Analysis of Bridge Expansion Joints: Total Cost of Ownership

Initial purchase price is only a fraction of total expansion joint cost over a bridge's 50-year life. Life cycle cost analysis (LCCA) often shows that premium joints provide better value. Cost Components: Initial supply and installation cost. Routine maintenance (annual inspection, cleaning). Periodic repair (seal replacement, corrosion treatment). Full replacement (typically at 15-25 years for standard joints). Traffic management during maintenance/replacement. LCCA Example for 100m Highway Bridge over 50-Year Life: Asphalt plug joint has initial cost $8,000, maintenance $2,000, replacement $24,000 (3 times), total $34,000. Strip seal joint has initial cost $15,000, maintenance $5,000, replacement $15,000 (1 time), total $35,000. Modular joint has initial cost $45,000, maintenance $8,000, replacement $0 (in-situ seal replacement), total $53,000. Conclusion: Modular joints have higher initial cost but lower replacement frequency and lower traffic disruption costs. For high-traffic bridges, modular joints typically provide the best LCCA value despite higher upfront investment.