Bridge Expansion Joint for Bridges Near Waterways

Bridge expansion joints on bridges over or near navigable waterways must be designed to prevent debris from falling into the waterway and to comply with the environmental protection requirements of the waterway authority. Debris containment for bridges over waterways is critical for preventing joint components and maintenance debris from falling into the waterway. Debris nets or containment trays below the joint must be designed to catch all debris that could fall from the joint. The nets or trays must be large enough to catch debris that is deflected by the joint structure. Environmental protection during joint maintenance on bridges over waterways requires containment of all waste materials, including concrete debris, paint chips, and lubricants. Environmental permits may be required for maintenance work that could affect the waterway. The maintenance contractor must have a spill response plan in case of accidental release of materials into the waterway. Navigation clearance for bridges over navigable waterways must be maintained during joint maintenance. The maintenance activities must not reduce the navigation clearance below the minimum required value. The waterway authority must be notified of any maintenance activities that could affect navigation. Waterway authority coordination for joint maintenance on bridges over waterways requires advance notification and approval. The waterway authority may require the maintenance to be performed during periods of low vessel traffic. Any maintenance that requires the use of barges or other watercraft must be coordinated with the waterway authority. Post-maintenance inspection of the waterway below the bridge must verify that no debris has fallen into the waterway during the maintenance. Any debris in the waterway must be removed promptly to prevent navigation hazards.