Modification of Existing Structures

Modifications such as widening, strengthening, or raising a structure are often required to meet increasing traffic demands at existing bridges. Modifications of bridge projects funded by any category of funding may occur only after an analysis of the following:
  • Field Assessment by District personnel that have completed
    the TxDOT inspection training, Safety Inspection of In Service Bridges,
     to verify the current condition of the structure
    -or-
  • signed and sealed appraisal of the structural adequacy and condition of the existing structure by a professional engineer licensed in the State of Texas.
    Approval of all proposed work is required from Bridge Division prior to developing plans for modifying an existing structure
  • An economic study of replacement versus modification
  • A study of the method and handling of traffic during construction