Bringing modern technology to NBI inspections. More quantitative data, fewer lane closures or bucket trucks. the latest Bridge inspections and infrastructure inspections.

1. National Bridge Inventory “NBIS” Standard
727-372-2900 Ext.24
A nondestructive testing & Infrastructure assessment company
Specialist in Bridge & Infrastructure Inspections
Infrastructure Preservation Corporation
In Association with Pre-Stressing Expanded Metal Components

2. Mission
IPC is a Professional Services
Nondestructive Testing and robotic
engineering company specializing in
Transportation and Infrastructure
Condition Assessments.IPC’s mission is to bring advanced &
robotic nondestructive testing
technologies to the Transportation
inspection industry. This will allow
Asset owners to make better
investment decisions for the ultimate
benefit of public safety
Bridge Inspections fall under AASHTO
& FHWA guidelines
Transportation
Infrastructure Inspections
Construction Materials
Testing
Nondestructive Testing
Infrastructure Assessments
National Bridge Inspection Program

3. National Bridge Inspection Program
IPC: Ph.727-372-2900 ext.24
info@infrastructurepc.com
www.Infrastructurepc.com
Robotic Cable Stay Inspection Robotic Wire Rope Inspection
ICS: Ph. 00 971 4 320 5466
inq-me@icsglobe.net
www.icsglobe.net

4. National Bridge Inspection Program
Why?
 1967 –Silver Bridge collapse (fracture of an eyebar at a pin connection)
 1968 –National bridge inspection (NBI) program initiated (requiring regular
and periodic inspections)
 1971 –National bridge inspection standards (NBIS) adopted (prescribe
how, with what frequency, and by whom bridge inspections must be
completed)
 1987 –Schoharie Creek collapse (scour)
 2007 –Minnesota I-35W collapse (undersized gusset plate design)
 2018 –Florida International University –Still under investigation.

5. National Bridge Inspection Standard
How?
 Visual assessment & Robotic Quantitative Inspection services
 Collection of 116 standard NBI fields of data collected
 75 supplemental state data fields
When?
 Every 24 months unless otherwise warranted by conditions
 For non-NBI structures, inspected at least every 36 months
 For Structurally deficient bridges every year.
Who?
 Qualified and trained inspectors each having a minimum of 5 years bridge inspection experience
 Comprehensive two-week inspector training course
 Fracture critical inspection course

6. Inspection Terms
 Bridges are considered STRUCTURALLY DEFICIENT if significant load-
carrying elements are found to be in poor or worse condition due to
deterioration and/or damage, or the adequacy of the waterway opening
provided is determined to be extremely insufficient. The fact that a bridge
is structurally deficient does not immediately imply that it is likely to
collapse or that it is unsafe.
 Bridges are considered FUNCTIONALLY OBSOLETE when the geometry of
the roadway no longer meets today’s minimum design standards for width
or vertical clearance for that roadway classifications, or the adequacy of
the waterway opening provided is determined to be insufficient. The fact
that a bridge is functionally obsolete does not imply that it is unsafe.

7. Inspection Terms
 The SUFFICIENCY RATING of a bridge is a single number from 0 (low) to
100 (high) taking into account, bridge condition, geometry, traffic, and
how well the waterway passes underneath the bridge. Sufficiency rating is
used to determine funding eligibility. A low sufficiency rating does not
necessarily mean the bridge is unsafe or in need or immediate repair.
 A FRACTURE CRITICAL MEMBER is a steel member in tension that does not
have enough additional, structural members to sufficiently redistribute
load in the bridge if one member loses capacity, thus resulting in a portion
of or entire bridge collapse.
 FATIGUE is a material response that describes the tendency of a material to
break when subjected to repeated loading.

8. Types Of Inspections
Initial
 The first inspection of a bridge to determine baseline structural conditions.
Routine
 Regularly scheduled inspection consisting of observations and/or measurements needed to determine the
physical and function condition of the bridge
In-Depth
 A close-up inspection of one or more members to identify deficiencies
Robotic Inspections
 Robotic NDT inspections should be used at each stage to facilitate faster, better data collection.
Special
 An inspection scheduled at the discretion of the inspector used to monitor a known or suspected deficiency

9. National Bridge
Inspection Ratings
Condition ratings as applied to the following:
Deck
 Directly carries traffic
Superstructure
 Supports the deck and connects one
substructure element to another
Substructure
 Supports the superstructure and distributes all
bridge loads to below ground bridge
footings
Culvert
 A pipe or small structure used for drainage
under a highway or railroad

10. National Bridge Inspection Rating
Appraisal ratings
 Waterway adequacy (frequency of overtopping)
 Structural evaluation (load rating)
 Approach roadway alignment
 Deck geometry (roadway width)
 Under clearances (vertical and lateral)

11. NBI Condition
Ratings (Scale
9 to 0)
9 – Excellent Condition
8 – Very Good Condition
*No Problems Noted
7 – Good Condition
*Some Minor Problems
6 – Satisfactory condition
*Structural elements
show some minor
deterioration

12. NBI Condition
Ratings (Scale 9 to 0)
5 –Fair condition
 All primary structural
 elements are sound but may have
 minor section loss, cracking,
 spalling or scour.
4 –Poor condition
 Advanced section loss, deterioration or scour
3 - Serious condition
 Loss of section, deterioration, spalling or scour
 have seriously affected primary structural
 components. Local failures are possible.

13. NBI Condition
Ratings (Scale 9 to 0)
2 –Critical condition
 Advanced deterioration of primary structural
elements. Unless closely monitored it may be
necessary to close the bridge until corrective action
is taken
1 –“Imminent”failure condition
 Major deterioration or section loss present in
critical structural components or obvious vertical or
horizontal movement affecting structure stability.
Bridge is closed to traffic but corrective action may
out back in light service.
0 - Failed condition
Out or service –beyond corrective action.

14. Inspection Service Offer
 Routine and Special Bridge Inspections (NBIS Inspections)
 Bridge Management Services Software
 Ancillary Structure Inspections
 Civil Engineering Inspections
 Construction Engineering Inspections
 Nondestructive Testing
 Advanced Inspections
 Bridge Deck Condition Assessment (GPR)

15. Nondestructive Testing
In Shop Inspection Dam Inspection Electrical Inspections Roadway Inspections
Tank Inspections Special Inspections Garage Inspections Bridge Inspections
Pipeline Inspections Construction Inspections Site InspectionsInfrastructure Inspections

16. Advanced Robotic Bridge
Inspection & NDT Services
PoleScan® TendonScan® Cablescan® Crackscan® BridgeScan®
Tensile Load
Suspender Cable
Inspections
Drawbridge
Structural Health
Monitoring
RoboticWire
Rope Inspections
High Mast Light
Pole
Repair Robot

17. Highlighted Service
TendonScan ®
 Magnetic Flux Leakage
 Locates and Quantifies Loss of Metallic Area in External PT
Tendons Assessments.
 Light weight, portable, wireless and battery operated.
 Provides 4 categories of damage condition.
 Identifies tendons for future monitoring or replacement.
Robotic Post Tension Tendon Inspection

18. TendonScan ®
IPC’s MFL device accurately locates section loss and wire breakage.
CORROSION DETECTION – MAGNETIC FLUX LEAKAGE
VIDEO OF FIELD SERVICE https://youtu.be/wwNPxsUVStM
Click To Play

19. Highlighted Service
BridgeScan®
 BridgeScan® provides a full deck and
approach slab condition assessment
providing quantitative results that far
exceeds traditional chain dragging
methods
 Replaces Chain Dragging & visual
subjective methods
 Inspections with 100% coverage
 Conducted within the current DOT’s
budgets
 Quantitative data prioritizing future
maintenance activities
OLD METHOD
CHAIN DRAGGING

20. BridgeScan®
Deck Condition Assessments
Deterioration – Delamination throughout the deck
Locates delamination and
debonding
Maps reinforcement patterns
Conducts approach slab
deterioration assessment
Locates voids under
approach slab
Fill density assessment under
approach slabs
Abutment water
intrusion
assessment
through backwall
Identifies 12
levels of
deterioration
Inspections are performed by
bridge inspectors and
reviewed by bridge
engineers

21. BridgeScan®
Deck Condition Assessments
Healthy
Deck
Damaged
Deck
End of Life
Deck
Normal
Reinforcement
Delamination
and debonding
Provides quantitative data to the Department of Transportation
Helps the DOT better allocate assets
Helps the Asset manager create an action plan for repairs!
Can provide budget for maintenance repairs.
Shows deterioration progression over time on subsequent inspections

22. BridgeScan™
Deck Condition Assessments
Delamination Concrete Deterioration
BridgeScan provides a more comprehensive deck assessment then traditional
chain dragging method and far exceeds standard GPR.

23. BridgeScan™
BridgeScan utilizes a custom GRP sled
with multiple antennas reducing
scanning time and costs
IPC’s BridgeScan® goes beyond just GPR.
This is a complete bridge deck and approach
roadway assessment.

24. Highlighted Service
CableScan®
 Cable Stay Robotic Bridge Inspection System 1-
Visual 2- Magnetic Flux Leakabe
 8 minute mount / dismounts
 Portable self contained
 1080i 60fps video – 24mp stills
 Tracks linear and deck horizontal distances
 Real-time evaluation
 360 degree viewing
 Redundant power systems
 Battery operated
 Wireless control
OLD METHOD

25. CableScan®
No lane closures with
daytime inspection
Eliminates need for
boom trucks
More accurate than
traditional inspection
methods.
Safer for both the
inspector and the
public.
Uses LIDAR to
measure length and
width of cracks.
Double blind study of an
inspection of 84 cables
found 1 issue with
traditional method. IPC’s
QC of 9 cables found 12
issues.
Recorded video file
for future
comparisons.

26. CableScan®
Magnificatio
n of what
was
detected
Sample of
laminar rust
beneath
coating
Failed clear
coat / UV
coating
Painted-over
gouges due to
man lift
damage
Damage due
to scaffolding
standoff bars
For both NBI inspections and special inspections that can locate loss of metallic area
inside a bridge cablestay.
Digital images of elevations ranging between 150 to 300 ft.
https://youtu.be/LAuZhN1Z_yE

27. Highlighted Service
CrackScan™
 Scans for cracks from over 100 feet away
 No Lane closures
 No boom lifts required
 More efficient, less expensive and more accurate than
current inspection methods
 Records X and Y coordinates of the cracks as well as
length and width
 Future inspections allow the asset manager to track
crack progression over time
 Double blind study of 2 bridges in Nevada where the
engineering firm showed no cracks on 1 bridge and
none on another
 IPC located 7 cracks on one and 6 cracks on the other
 Manual methods cannot compete with laser technology

28. CrackScan™
 2 D and 3D Crack Maps
Video: https://youtu.be/XlgQwi40WCc

29. Highlighted Service
RopeScan®
Wire Rope Inspections
 From Suspension to Suspender cables &
more
 Check for loss of metallic area and broken
wires including suspender cables,
suspension cables, crane cables, hoits,
mining cables, people movers, oil rig and
other steel cables.
https://youtu.be/XnyZGQfg6nc

30. Highlighted Service
Laser Vibrometry
 Measuring the tensile load of a cable from a
distance
 Post analysis software that can calculate the
tensile forces in real time
 Eliminates lane closures and costly man lift
devices
 Inspects
 Cable Stays
 Suspender Cables
 External Cables
 Other Wire Cable Structures

31. ColumnScan®
 Replaces the risk to human life
 Robotically Inspects Column
 Produces high resolution video and stills
of any anomolys
 Provides deterioration progression over
time
 Utilizes video, stills, infrared.
 Inspects bridge columns, shafts, mining
and any vertical column.

32. Highlighted Service
Bridge Inspection
Services
 Movable Bridge Inspections
 Full Structural & Fracture Critical
Inspections
 Mechanical & Operational Inspections
 Emergency inspection Service
 Complex Bridge Inspections
 Full Structural Critical & Fracture Critical
Inspections
 In Depth Truss, Gusset Plate & Thickness
Inspections
 Cable Stays, Post Tension (PT) System
Inspections

33. Highlighted Service
Drawbridge Health
Monitoring
 Gear Box Monitoring
 Electric Motor Monitoring
 Monitoring of Hydraulics

34. Highlighted Service
PoleScan®
 Complete Inspection of
 Pole
 Seams
 Mast Arms
 Anchor Bolts
 Foundation
 Can lower Luminaries if required
 No lane closures or bucket truck
 Abrasive surface preparation of rust areas
and paint coats the surface.
High Mast Light Pole Robotic Inspection Services
High Mast Light Pole Robotic Repair Services
OLD METHOD

35. PoleScan™
Takes HD 360 degree
video as well as 24mp
stills of abnormalities
Takes HD video of the
luminaries, bolts, etc.
Includes ultrasonic
testing of anchor
bolts
Keeps video file for
future reference
2 man crew per team
Report reviewed by
structural engineer

36. PoleScan®

37. PoleScan®
Ultrasonic Testing of Anchor
Bolts
https://youtu.be/0LmyEVRIpEM
High Mast Light Pole Inspection Service

38. High Mast Light Pole Inspection Video –Field Inspection and Repair
Services for
https://youtu.be/0LmyEVRIpEM
High Mast Light Pole Inspection Service

39. Drone Inspection
Services
 Hard To Reach Inspection
Locations
Utilizing Drones
 High profile structures
 Towers
 Windmills

40. Project References
IPC: Ph.727-372-2900 ext.40
info@infrastructurepc.com
www.Infrastructurepc.com
ICS: Ph. 00 971 4 320 5466
inq-me@icsglobe.net
www.icsglobe.net

41. Arrigoni Bridge
PROJECT
Inspection of suspender cables and Pins
CLIENT
AI Engineers
IPC ROLE
Special Assessment: 10 year detailed NDT inspection
Bridge Hanger Pin – Ultrasonic
Magnetic Flux Leakage of Suspender Cables
Laser Vibrometery to calculate tensile load on cables
Problem solved
Met 10 year inspection requirement
Through Arch Bridge

42. Bridge Deck Deterioration Assessments
NY Thruway
PROJECT
Inspection of Multiple Bridge Decks
CLIENT
New York State Thruway Authority
IPC ROLE
Special deterioration assessment to develop priority maintenance plan
Problem solved
Bridge repair prioritization based on deterioration analysis

43. Cable Stay Inspection
Skyway Bridge
PROJECT
Robotic Visual Inspection of Bridge Cable Stays
CLIENT
DBI Services
IPC ROLE
QC inspection of 9 Cable Stays following Traditional Inspection
Problem Solved
Identified surface condition anomalies that could not be detected from ground
based visual method.

44. Post Tension Tendon Assessment
Wando River Bridge
PROJECT
Tendon condition assessment
CLIENT
HDR Engineering
IPC ROLE
Condition assessment of Tendon to determine extent of corrosion due to age
of bridge
Problem Solved
Loose and failed tendons led to concern of condition of tendon system.
IPC solution included magnetic flux in lieu of ECT, which produced misleading
results. MF result led to fewer invasive examinations from open tendon

45. NBIS (National
Bridge Inventory
System)
Provide remarkable detail of quantitative data
Remarkable
Quantitative
Data
Enable transportation agencies to make very accurate budgetary
decisions
Accurate
Budgets
Extend service life of critical infrastructure assets
Extend Asset
Life
Allow for inspections to be conducted with minimal lane closures or
heavy equipment
Reduce
Closures and
Use of
Equipment
Services provided within the agency’s current maintenance budgets
•in other words for the same price they have budgeted today for subjective manual
inspections.
Cost Savings

46. Infrastructure Preservation Corporation
Contact Information:
USA Phone: +727-372-2900 Ext.24
IPC: Ph.727-372-2900 ext. 24
info@infrastructurepc.com
ww.Infrastructurepc.com
National Bridge Inventory System “NBIS”