Which type of inspection is more intensive of structural element?
Answers
itial Infrequent, performed and inventoried before the bridge is first opened
to traffic or there is a change or update in inspection responsibility.
Routine Annual, performed at least once each calendar year per ORC Not To
Exceed (NTE) 18‐months.
In‐Depth As‐needed, generally performed for Major or Complex bridges often on
a 60‐month cycle or less per Control Authority or inspection and
maintenance procedure. Additionally this inspection type is
recommended when the routine inspection does not provide a
condition evaluation to ascertain the safe live load capacity at the
discretion of the Team Leader or Program Manager.
Damage As‐needed, performed in‐frequently and not part of a normally
scheduled inspection, i.e. someone else notifies inspectors of the
damage.
Flood As‐needed, performed in‐frequently and not part of a normally
scheduled inspection.
Fracture Critical Not to exceed 24‐months for structures that fit the rigid definition.
Fracture Critical Inspections require an inspection procedure.
Underwater Not to exceed 60‐months. For structures that cannot be probed or
inspected due to the water depth, turbidity or unsafe conditions during
routine inspections shall receive an Underwater Dive Inspection. Dive
Inspections require an inspection procedure.
Cross Channel
Profile
As‐needed, performed on structures over waterways at the discretion
of the Control Authority. Usually performed on bridges over waterways
that exhibit aggressive stream migration, sloughing or undercutting.
Scour Susceptibility
Inspection & Eval
As‐needed, performed on structures in order to evaluate risk from
scour and scour potential
Special/Interim As‐needed, performed at an interval more frequently than the routine
inspection in order to check on one area or one location. The localized
inspection may only focus on and update one or a small number of
inspection or inventory data.
Safety (Cursory) Annual, at least once each calendar year not to exceed 18‐months, on
structures or portions of structures that are primarily inspected by
another entity.
Quality Assurance A rolling sample set of field and office visits performed regularly by
FHWA, ODOT Central Office, CEAO or initiated by any Control Authority
or NBIS Program Manager to verify quality inspections.
Complex Annual routine, with often a 60‐month in‐depth inspection cycle. These
structures require an inspection procedure.