Regular inspection and documentation are major parts of management planning for culverts.
Coverage range - all types of culverts from wood, concrete, metal, plastic and composite are discussed.
Inspectors Safety:
Written safety plan:
Notification to road users:
Checklists:
Frequency:
Scheduling:
Reporting:
Protective clothing and gear:
Rivets, fasteners, and couplings:
58. OOuuttlleett SSccoouurr aanndd DDiisscchhaarrggee
PPrroobblleemmss
IINNSSTTAABBIILLIITTYY BBEELLOOWW TTHHEE OOUUTTLLEETT
EErroossiioonn ffrroomm wwaatteerr vveelloocciittyy
A stable scour hole is not a problem unless it poses a
safety hazard or has
undermined the headwall. In fact, it acts as an energy
dissipator.
Kay & Associates
71. SSeettttlliinngg ppoonndd
Settling times (1m depth)
Coarse silt – .2 hr
Medium silt – 1.3 hr
Fine silt – 14 hr
Clay – 5 days
Times are approximate,
temp of 5° C and assuming
no turbulence.
Silt – 0.05mm to 0.002mm
Clay – < 0.002mm
Kay & Associates
Individual in Charge of the Program
Individual in Charge of an Inspection Team
On-site inspectors
Class Code: 08137
IOWA DEPARTMENT OF ADMINISTRATIVE SERVICES –
HUMAN RESOURCES ENTERPRISE
BRIDGE INSPECTOR 2
DEFINITION
Under general direction, directs and coordinates the work of specialized maintenance/repair crew in a Transportation Center service area in performing paraprofessional engineering in the detailed inspection of existing bridges; performs related work as required.
The Work Examples and Competencies listed are for illustrative purposes only and not intended to be the primary basis for position classification decisions.
WORK EXAMPLES
Assists a supervisor by performing, in accordance with set procedures, policies, and standards, such duties as instructing employees about tasks, answering questions about procedures and policies, distributing and balancing the workload and checking work; may make occasional suggestions on appointments, promotions, and reassignments.
Plans and schedules bridge inspections/repair and manages the collection and assembling of the necessary information and equipment.
Directs the inspection/repair of various bridge components instructing the team in either visual techniques or in the use of various mechanical and electronic devices such as calipers, increment borer, pachometer, electronic depth finder rebar corrosion detector, jack hammer, concrete mixers, jacks, vibrators, air compressors, concrete saws, backhoes, delam techs, welders, torches, epoxy injection machines or hand tools.
Oversees the recording of the condition of various bridge components and noting of deficiencies.
Oversees the preparation of necessary sketches and photographs showing conditions and/or deficiencies.
Oversees the measurement of necessary dimensions, angles, distances and/or vertical elevations using various devices such as transit, level, surveyor&apos;s chain, tape or folding rule and recording of measurements.
Reviews mathematical computations of stress distribution, using algebra and plane geometry to determine hazardous conditions.
Prepares written reports describing bridge conditions and deficiencies and makes remedial recommendations.
Provides on-the-job training for team members; reports repetitive procedural errors to the Chief Bridge Inspector so necessary training can be given and/or corrective actions can be taken.
Operates snow removal equipment such as, but not limited to, a self-propelled rotary snowplow, single axle dump truck or a tandem axle dump truck.
Approves all requisitions for materials and supplies; maintains inventory records.
COMPETENCIES REQUIRED
Knowledge of bridge inspection/repair terminology or maintenance/repair procedures and techniques.
Knowledge of bridge design characteristics and the relationship of their parts to the whole.
Knowledge of typical deterioration specific to certain bridge design types and features.
Knowledge of bridge inspection reporting requirements to determine the bridge components and physical surroundings to inspect, measure, observe, draw and photograph.
Ability to understand the contents of bridge design plans.
Ability to utilize standards, instructions and guidelines applicable to bridge inspection report preparation, arrangement, cross-referencing and indexing.
Ability to compare one bridge element with another through reading, observing and/or measuring so a judgment can be made regarding their condition and load carrying ability.
Ability to climb and perform inspection and repair duties while in difficult positions and under hazardous conditions such as extreme height, heavy traffic, over water, near electric lines, etc.
Ability to make accurate calculations and maintain adequate documentation.
Ability to recognize, identify and assess the extent and significance of structural deterioration, defects and damage in and around bridges and reach conclusions as to cause(s).
Ability to operate bridge inspection and/or bridge maintenance repair tools and equipment.
Ability to describe bridge conditions and deficiencies, and physical surroundings as observed.
Ability to organize ideas, data, and pictures into established bridge inspection report format.
Ability to illustrate bridge components and structural deficiencies to scale.
Ability to condense information received from inspection team in order to paraphrase the resulting reports and yet retain critical information.
Ability to read and effectively communicate in English.
Ability to plan, lead and control the work of team members including work assignments, daily priorities and long-range activities.
Ability to visually detect conditions at the bridge site that might alter standard inspection or maintenance/repair scheduling and procedures.
Ability to evaluate team members performance to identify the need for further training or employee counseling.
Ability to instruct team member in proper bridge inspection or maintenance/repair procedures, policies, and terminology through on-the-job training, examples and practice performance.
Ability to use automated equipment to prepare bridge condition and repair reports.
Skill in the operation of engineering survey equipment.
Displays high standards of ethical conduct. Exhibits honesty and integrity. Refrains from theft-related, dishonest or unethical behavior.
Works and communicates with internal and external clients and customers to meet their needs in a polite, courteous, and cooperative manner. Committed to quality service.
Displays a high level of initiative, effort and commitment towards completing assignments efficiently. Works with minimal supervision. Demonstrates responsible behavior and attention to detail.
Responds appropriately to supervision. Makes an effort to follow policy and cooperate with supervisors.
Aligns behavior with the needs, priorities and goals of the organization.
Encourages and facilitates cooperation, pride, trust, and group identity. Fosters commitment and team spirit.
Expresses information to individuals or groups effectively, taking into account the audience and nature of the information. Listens to others and responds appropriately.
EDUCATION, EXPERIENCE, AND SPECIAL REQUIREMENTS
The equivalent of five years of full-time experience in bridge inspection;
OR
licensure a professional engineering by the Iowa Board of Engineering Examiners;
OR
an equivalent combination of education and experience substituting two years (60 semester hours) of college or technical school course work in business administration, construction technology/management, or engineering for two years of the required bridge inspection experience;
OR
employees with current continuous experience in the state executive branch that includes the equivalent of four years of full time experience in maintenance or construction of highways shall be considered as qualified.
NECESSARY SPECIAL REQUIREMENTS
Successful completion of a comprehensive bridge inspection course required by the National Bridge Inspection Standards 23CFR650.307 prior to appointment or within a period of time as determined by the appointing authority at the time of hire by the appointing authority.
All positions in this job class require applicants to possess and maintain a Commercial Drivers License Class A with air brake endorsement at the time of hire. Other endorsements may be required within a period of time as determined by the appointing authority at the time of the hire. Effective January 1, 1995, after accepting an offer of employment all persons will be required to pass a pre-employment drug test and alcohol breath test (United States Department of Transportation Rule 49CFR Part 40).
SELECTIVE CERTIFICATION
For designated positions, the Appointing Authority, with Iowa Department of Administrative Services – Human Resources Enterprise prior approval, may request those applicants possessing a minimum of one-year engineering work experience in one of the following areas:
057Bridge Inspection
Applicants desiring to be considered for these positions must list applicable course work, experience, certificate, license, or endorsement on the Experience and Special Requirements section of the application.
NOTE:
Extensive travel may be required for the positions in this class, and employees may be required to stay away from home overnight during assignments. Employees must be able to arrange transportation to and from assigned work areas.
NOTE:
After accepting an offer of employment, all persons are required to have a physical examination by a doctor of their choice verifying the physical ability to perform the duties described.
NOTE:
Employees must respond to emergency situations as required.
Effective Date: 6/94 DK
Inspection and Records transformed into information for decision making purposes.
Combining all relevant data, correlation of data, identifying trends over time, statistical analysis, risk analysis, implementation of standards, regulatory guidelines etc.
Obtaining sound, high quality monitoring and inspection data can be difficult and requires;
technical knowledge,
experience
attention to detail.
The transformation of the data to information (with graphics) also represents a significant challenge; modern software tools can greatly assist in this step.
Information assists in the shift towards preventive and predictive maintenance, away from purely corrective maintenance.
Inspections can not only document the problems but can assist in rating the culverts with regard to their serviceability and structural safety.
Effective record-keeping is essential for future planning
Scheduling of maintenance
Scheduling of replacement
Inspection, Coordinate Mapping of Damage, Reporting and Recording
Underwater NDT Pipe and Metal Thickness Gauging (without removing protective coatings)
Safety Corrosion Monitoring of Pipelines and Storage Vessels
Metal Thickness Wear Checks on Jetties, Dock Gates, Piers, and Pilings
Inspect Underwater Construction and Repairs
Obstructions
Corrosion
Locks
Powerhouses
Inspect crest gates
Intake structures
Bulkhead and stop log recess areas
Culverts
Reservoirs
Internal Water Towers and Tanks
Bridges, docks and harbors
Outfalls
Security and Surveillance
Maintenance and Safety Checks on Culverts & Bridges.
Carry out underwater cathodic protection potential measurements in a wide range of applications including production and drilling platforms, shipsí hulls, jetties and other marine works.
References/Literature:
M.G. Fontana: Corrosion Engineering, McGraw-Hill, New York, 1986.
Forms of Corrosion website:
http://www.corrosion-club.com/forms.htm
Steel reinforced barrier wall on a bridge illustrate different visual stages (severity levels) of rebar corrosion damage. The structure was built in 1979 and was subject to application of deicing salts in winter.
Software: BridgeInspect ™ / Advitam/Autodesk ™
Advitam - Bridge Inventory and Inspection Support Software
BRIDGEview - Bridge and culvert management software from CarteGraph
BridgeInspect For bridge, culvert, and other structure management and inspection.
IBIIS - Integrated Bridge Inspection Information System
Inspection On Hand (IOH) - A system for the automated collection of bridge inspection information
PONTIS - Bridge management
PubWorks - Cost Accounting Software For Your Public Works Department
Eric L Kay, Senior Project Manager
Kay and Associates
8712 Island Highway, BC V9J 1K5
WWW.KAYASSOCIATES.COM
[email_address]
Tel: 250 337-5096
Fax: 250 337-5036
Cel: 250 897-2360