Thomas Saad, P.E.

Senior Structural Engineer Federal Highway Administration Phone: (708)283-3521

Design and Analysis Tools LRFR Implementation Webinars New FHWA Design Manuals and Design Examples Design and Analysis Training Research Long-Term Bridge Performance Program (LTBPP) Policy and Regulatory Issues NBIS Update NBI Coding Guide Update NTIS Etc…

Topic No. 1: Implementation of the Load and Resistance Factor Rating Method, October 5, 2011 Topic No. 2: LRFD/LRFR Design and Load Rating of Culverts, November 17, 2011 Topic No. 3: LRFR Load Rating of Segmental Concrete Bridges, January 19, 2012 Topic No. 4: State-Specific LRFR Load Rating Guidelines, April 19, 2012

Topic No. 5: Application of Load Testing in Bridge Load Rating (1), September 20, 2012 Topic No. 6: Application of Load Testing in Bridge Load Rating (2), December 6, 2012 Topic No. 7: Application of Computer Software in Bridge Load Rating (1), February 28, 2013 Topic No. 8: Application of Computer Software in Bridge Load Rating (2), April 25, 2013 Recordings: http://www.fhwa.dot.gov/bridge/lrfd/

September 12, 1:00 – 3:30 pm EDT Focus on evaluation of gusset plates New gusset design/analysis provisions Gusset plate load rating methods case study Evaluating deteriorated gusset plates [email protected]

www.fhwa.dot.gov/bridge

Steel Bridge Design Handbook – Available Fatigue Repair and Retrofit Manual - Available Refined Analysis Manual – early 2014 PT Box Girder Design Manual – early 2014 FHWA PT Installation and Grouting Manual – release expected very soon Manual on Engineering Stability in Construction of Bridge Superstructures – early 2014

NHI Course 130081: LRFD for Bridge Superstructures NHI Course 132082: LRFD for Bridge Substructures and ERS NHI Course 130092: LRFR for Highway Bridges NHI Course 130093: LRFD Seismic Analysis and Design of Bridges NHI Course 130094: LRFD Seismic Analysis and Design of Tunnels, Walls and other Geotechnical Features NHI Course 130095: LRFD: Design and Analysis of Skewed and Horizontally Curved Steel Bridges

1 ½ day seminar (9 PDH) Overview of FHWA Seismic Retrofit Manual Develop design response spectrum identically to current LRFD Delivered in IN, IL, NY, NJ, GA, MA, TN, UT

[email protected]

Zone 1 SDC “A” Zone 2 SDC “B” Zone 3 SDC “C” Zone 4 SDC “D”

Zone 1 SDC “A” Zone 2 SDC “B” Zone 3 SDC “C” Zone 4 SDC “D” SITE CLASS “B”

Zone 1 SDC “A” Zone 2 SDC “B” Zone 3 SDC “C” Zone 4 SDC “D” SITE CLASS “D”

Zone 1 SDC “A” Zone 2 SDC “B” Zone 3 SDC “C” Zone 4 SDC “D” SITE CLASS “E”

Definition of Bridge Performance: Bridge Performance Encompasses How Bridges Function and Behave Under the Complex and Interrelated Factors they are Subjected to Daily:

― Traffic Volumes ― Loads ― De-Icing Chemicals ― Freeze-Thaw Cycles ― Environment ― Extreme Events ― Method of Design ― Construction ― Materials ― Age ― Maintenance

History

Vision: The LTBP Program will Serve as the National Platform for Strategic Long-Term Investigation of In Service Bridge Performance.

Mission: Foster Improved Bridge Performance, Health, Stewardship, and Management Through the Analysis of Data Collected Over a 20-Year Period on a Large Representative Sample of U.S. Highway Bridges. To achieve this, the Program is Designed to Produce and Support Improved Deterioration Models, Reliable Life Cycle Cost and Forecasting Models, Design Procedures, and Decision-Making Tools.

Electrical Resistivity Impact Echo Coring USW GPR

Initial East Coast N/S Bridge Corridor

“Robot” Remote controlled Cameras GPS 4 NDE technologies Deployed on 24 bridges

High-Resolution Imaging USW (Modulus) IE

Progress made nationally on 20 of 23 metrics 1 metric stayed the same at 100% Satisfactory 2 metrics re‐defined with no comparison available Significant improvement in 5 metrics 3 frequency, scour POAs, QC/QA

CY 2011 PY 2013 % Change

Satisfactory 70.5 % Active Improvements 29.0 % Unsatisfactory 0.5 % 79.3 % 20.6 % > 0.08 % 8.9 % (8.4 %) (0.42 %)

FHWA/AASHTO Task Force in 2011 Some metrics revised for 2012 assessments Remainder revised for current cycle Issued latest version of metrics on 4/1/13 May training for FHWA staff Risk considerations, commentary, incorporated Q&As

Trends show results of significant efforts to reduce errors Error = bad or missing data > 60 Million pieces of data in NBI

Number of Errors

2009 115,811 2010 20,284 2011 6,967 2012 4,155

Central online library of videos and resources for local agencies Each video addresses a single topic condenses complex regulations and requirements of the Federal-aid Highway Program into easy-to understand concepts and illustrated examples Launched August 27, 2012 at the American Public Works Association (APWA) International Public Works Congress and Exposition

SNPRM published in Federal Register Comments due by September 30, 2013 https://www.federalregister.gov/articles/2013/07/30/2 013-17875/national-tunnel-inspection-standards#h-4 TOMIE Manual at http://www.fhwa.dot.gov/bridge/ National Tunnel Inventory and Coding Guide being developed

MAP-21 requires AMS for NHS bridges and pavements States document how they will do business State must define performance measures for bridges and pavements Penalties if performance not met http://youtu.be/OGiJeUGI4kI

Mandated by MAP-21 Methodology, training, and qualifications for inspectors Frequency of inspections Three years to complete (October 2015)

Risk-based inspection intervals

Is 24 months the right interval for both of these bridges?

Procedure for National Certification of Inspectors

Procedures for Reporting “Critical Findings”

Relate to structural or safety- related deficiencies of highway bridges Monitoring activities and corrective actions taken in response to a critical finding

MAP-21 mandates Procedures for annual compliance reviews Penalty for noncompliance with the NBIS Establishes timeframes States notified of noncompliance concerns by Dec 31 st 45 days to resolve or establish a PCA Implement penalty if no PCA or resolution Federal Register Notice being developed