Bridge Inspection Report:

This is A Sample of Bridge Inspection Report. Different types of defects in a bridge have been described here. I think it will helpful to you. The following content has been described with proper photographs.

How to Prepare A Bridge Inspection Report:

1. Salient features: All key information regarding the structure needs to be put here.

2. Photograph section: All structural photographs need to attach. Different types of structural defects, vegetation, streamflow path, etc. need to be shown in this section.

3. Structural Data: Collect the structural data from the concerned authority before going to site-visit for inspecting the bridges. if the structural data is not available then you have to collect the data during site-visit in case of an old structure.

4. General Data: Corrosion Protection Measures, Bank Protection & Type, Floor Protection & Type, etc will get during the bridge inspection. if the structure is located in a backwater (Marine) or chemical-affected water body then, you have to mention it here. An adverse or hostile environment accelerates the defects in concrete structures and steel structures.

5. Approaches condition: Condition of pavement surface, approach slab, reinforced earth walls, return walls, guard stones, etc. need to be mentioned. Vegetation growth at side retaining walls and slope failure of the embankment or soil erosion due to rain-cut are noticed. slope failure of the embankment or soil erosion due to rain-cut may create a major issue in the case of submersible approach embankment.

6. Protection work: Protection work around the abutments (guide bund), piers, at floor, apron, embankment, bank of river/nala/any type of stream are provided to protect the structure. During monsoon time water will impact directly the protection work not to structure. Flexible apron, floor material, slope pitching, and guide bunds may be damaged during monsoon time. That's why every structure should be inspected 2 times per year (a. before monsoon and b. after monsoon).

7. Waterway: Huge vegetation, soil deposition on the floor, island formation, or any obstruction may obstruct the water flow. All types of obstructions should be removed away from the waterway to make the proper channel.

8. Bridge Foundation: Most of the bridge foundation is visible during inspection time. In the case of deep foundation (pile foundation and well foundation), wells or piles are partially visible. You need to notice defects in concrete members, abnormal scouring around the abutment, unequal settlement, or excessive settlement, horizontal movement of bridge foundation due to earthquake, etc.

9. Substructure: Type, Material, Condition (Crack, Settlement, Scour, Tilting, Rusting in exposed Steel, Strains and other damages, etc.)

The efficiency of drainage of the backfill behind abutments (Check functioning of weep holes, evidence of moisture on abutment faces, etc.)

10. Subway: Check the condition of the side retaining wall like cracking, disintegration, and seepage, if any

Check large excavations done in the road below in the vicinity of flyover or road over the bridge of viaduct.

Seepage, vehicle impact, etc. (For sub-ways report seepage, vehicle impact, if any damage to the foundations, etc.)

11. Bridge Bearings and Bridge Pedestal: General condition (Check rusting, cleanliness, seizing of plates silting, accumulations of dirt in case of submersible bridges).

Functioning (Check excessive movement, tilting, jumping off guides.

12. Superstructure: Spalling, scaling, honeycombing, disintegration, cracks, exposed reinforcement, rusting and corrosion on exposed steel reinforcements, excessive vibration, excessive deflection, condition of protective coat or paint, etc.

Check the condition of steel members in case of steel structure.

Check the condition of articulation.

For PSC Structure: Check corrosion of reinforcements (sheathing and tendon if visible), Check cracks, if any, around the anchorage zone for prestressed concrete members.

13. Expansion joints:

Type of Bridge Expansion Joints, condition, Functioning, condition of sealing materials, check water leakage through the expansion joints.

14. Wearing coat:

Material, Surface Condition i.e. Cracks/ potholes/ Bulges, spalling, disintegration, etc.

Details of the waterproofing system, if any.

15. Drainage spouts and Vent holes:

Check the condition of drainage spouts (clogging, deterioration and damage, if any)

Check the projection of the spout on the underside of the bridge deck (see whether structural members are being affected).

For subways report about the adequacy of drainage and pumping arrangements etc.

Report absence of Drainage Spouts.

Check choking of drainage holes provided in the bottom booms.

Check choking of vent holes etc.

16. Handrail, Parapet wall, Crash Barrier: Material, Condition, check Expansion joint gap in handrail/parapets/Crash barriers to allow expansion during thermal variation.

17. Footpath: Width of the footpath, material, condition, etc.

18. Utility: Report any damage due to the presence of Utility, Any type of encroachment under the bridge, etc.