OREGON HIGHWAY BRIDGE MAINTENANCE A PILOT …...Defects Bridge Element 18. 19 • Helpful to...

OREGON HIGHWAY BRIDGE MAINTENANCE A PILOT TRAINING COURSE /WORKSHOP

JEFF SWANSTROM, P.E.

1

To familiarize the end users of the bridge

inspection reports (BIR) with the new Federal

and AASHTO requirements for bridge

inspection and how it affects the Local Agency

Bridge Inspection Program.

2

• Identify the changes in the ODOT Bridge

Inspection Program

• Understand how the changes affect the format of

the bridge inspection report (BIR)

• Identify the new bridge element and defect

language of AASHTO and the National Bridge

Inspection Standards (NBIS)

3

• Review Maintenance Recommendations and

Remarks

• Generating Maintenance Reports from the Bridge

Management System (BrM)

• National Bridge Inventory (NBI), Structure

Inventory and Appraisal Sheet (SI & A)

• Load Rating Information

• Temporary versus Permanent Repairs

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5

With more than 600,000 bridges in the U.S.,

many of them reaching their original 50-year

design lives, the need to ensure safety and

prioritize repair/replacement projects is ever apparent.

Complete, thorough and accurate data from the

BIR is the foundation of an effective bridge

management system.

The BIR helps agencies determine the state of

their infrastructure and prioritization of funding for bridge rehabilitation and replacement.

6

7

ODOT CODING GUIDE (March 2015)

Where To Find:

Bridge Elements

Defects

Condition State Definitions https://www.oregon.gov/ODOT/Bridge/Documents/Bridge_manuals/codingguide2015.pdf

8

Four Condition States (CS) for all elements

• CS1 is pristine condition-do nothing,

• CS2 is fair condition

• CS3 is in poor condition – typically this requires

an associated maintenance item

• CS4 is failed-perform analysis

Each Element has associated defects

• Defects quantities determine the overall

condition of the element9

CONDITON STATE 1

10

CONDITON STATE 2

11

CONDITON STATE 3

12

CONDITON STATE 4

13

CONDITON STATE 1

14

CONDITON STATE 2

15

CONDITON STATE 3

16

CONDITON STATE 4

17

4 Condition

StatesQuantities

Defects

Bridge

Element

18

19

• Helpful to

generate

maintenance

data and

work

prioritization

for local

agency and

state crews

20

Maintenance Recommendations for br. no. 02173a

21

Maintenance Recommendations for br. no. 02173a

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Maintenance Recommendations for Highway 35

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Maintenance Recommendations for Highway 35

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Maintenance Recommendations for Highway 35

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URGENT Maintenance Recommendations for Highway 35

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URGENT Maintenance Recommendations for Highway 35

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DECK SEAL Maintenance Recommendations for Highway 35

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DECK SEAL Maintenance Recommendations for Highway 35

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DECK SEAL Maintenance Recommendations for Highway 35

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Prioritization of Maintenance Needs

Critical - Needs to prevent the structure from being load posted.

(NBI Item 58, 59, 60, 61, or 62 < 3; or 113 = 2; or portion of defect in

CS4.)

Urgent - Repair As-Soon-Possible or to address a specific traffic

safety concern. (NBI item 58,59,60,61, or 62 < 4; or portion of defect

in CS 3).

Routine - (High, Medium, or Schedule) - Schedule the repair activity

with other bridge maintenance activities. Monitor - For the bridge

maintenance personnel to schedule site visits when in the area.

Monitor - For the bridge maintenance personnel to schedule site

visits when in the area31

Primary Bridge

Components NBI ratings

Bridge Element

and Defect Remarks

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Describes the overall physical condition of the

Structure – (Rated each inspection by the Bridge Inspector)

Item 58 – Deck Condition (takes into account spalls,

delaminations, patches, cracks, efflorescence, and rutting)

Item 59 – Superstructure Condition (takes into account

only the superstructure members, not bearings, paint, etc)

Item 60 – Substructure Condition (takes into account piers,

abutments, fenders, footings, etc)

Item 61 – Channel Condition (takes into account the

physical condition for the flow of water and looks at stream

stability, riprap, slope protection, or stream control devices)

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Primary Bridge Components

• Uses very general

subjective terms like:

good, fair or poor condition

• Ratings from high (best) to

(worst):

“9” = Excellent

“0” – Failed condition

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Primary Bridge Components

General Inspection Notes

Maintenance

Recommendations

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The SI&A data sheet covers basic information for a bridge:

1. Bridge Data

Location, design details, structure geometry, clearances, roadway

data, Inventory and Operating Rating

2. Condition Ratings

Current overall current condition of primary bridge members

3. Appraisal Items

Compares bridge features to current standards.

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Structure Inventory and Appraisal Sheet (SI & A)

Structure Inventory and Appraisal

Report (SI & A)

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Location

Design Details

Bolded

Items affect

sufficiency

rating

Vertical

Clearance

Structure

Geometry

Inventory

and

Operating

Rating

Structure Inventory and Appraisal Report (SI & A)

Item 103

Temporary

Structure

Designation

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FHWA CODING GUIDE

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NBI Item 103 - Temporary Repairs

NBI Item 103 - Temporary Structure Designation

Code this item where temporary structures or conditions exist

Temporary structure(s) or conditions are those which are required to facilitate

traffic flow

Such conditions include the following:

Bridge shored up, including additional temporary supports

Temporary repairs made to keep a bridge open

Temporary structures, temporary run-arounds or bypasses

Other temporary measures, such as barricaded traffic lanes to keep the

bridge open

NBI Item 103 - Temporary Structure Designation

• Any repaired structure or replacement structure which is

expected to remain in place without further project activity, other

than maintenance, for a significant period of time (>10 years)

shall not be considered temporary.(unless specifically notified

by the bridge owner that the repair is still considered temporary.

• However, with due consideration of the member capacity and

condition, a temporary repair can only be categorized as a

temporary repair if it at least has the same capacity as the

original members.

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NBI Item 103 - Temporary Structure Designation

Permanent or temporary? Permanent or temporary?

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1 2

NBI Item 103 - Temporary Structure Designation

Permanent or temporary? Permanent or temporary?

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3 4

NBI Item 103 - Temporary Structure Designation

Permanent or temporary? Permanent or temporary?

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Special

Hauling

Vehicles

Load Rating Summary

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Emergency

Hauling vehicles

Legal Trucks

Rating of

Bridge

Element 999

Ride Quality

(by Bridge

Inspector)

45

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