Bridge inspection and infrastructure inspection services using modern technology and robotics to provide more quantitative data to asset owners than current manual subjective inspections. https://www.infrastructurepc.com
Fewer lane closures or traffic interruptions, More quantitative data. Saves traffic interruption, save taxpayer money and prevents untimely replacements of critical infrastructure assets.
Engineering the latest in robotic infrastructure inspections. https://www.infrastructurepc.com
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
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.
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
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
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
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
38. High Mast Light Pole Inspection Video –Field Inspection and Repair
Services for
https://youtu.be/0LmyEVRIpEM
High Mast Light Pole Inspection Service
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”
Editor's Notes
IPC is a Professional Services Engineering firm and Nondestructive testing company.
IPC provides both conventional and advanced Nondestructive testing to provide quantitative infrastructure assessments in the most cost effective manner to the asset owner.
IPC's goal is the to be a premier provider in robotics infrastructure inspections for . IPC has pioneered the way for advanced inspection technologies to ensure the safeguarding of life, property, and surrounding environment all while producing accurate results and reducing overall costs. IPC holds its standard of services to the highest degree and continuously encourages to foster a positive and productive work environment.