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2015 Nebraska Bridge Conference 1

Sarpy County Bridge File Management and

Maintenance Program 2015 Nebraska Bridge Conference

Dr. Dennis L. Wilson, PE Sarpy County Engineer

Overview

n  Introduction n Bridge File Contents n Bridge Data Tracking n Key Resources

Introductions

n Dennis L. Wilson – Bachelor's degree in xxx from UNL – Ph. D in xxx from xxx – XX Years of Experience in the field of

Engineering – 5 Years as County Engineer

Sarpy County, Nebraska

n  Smallest county in Nebraska by area, 3rd largest by population (160,000 residents)

n  Rapid changes from agricultural lands to suburban-style development

n  700 lane-miles of County-maintained roadways

Surrounded on three sides by rivers = Plenty of Bridges!

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Sarpy Bridge Statistics

n 106 County-Maintained Bridges/Crossings – 93 bridges requiring regular inspections – 24 fracture critical bridges – 15 scour critical bridges – 25 functionally obsolete bridges (NDOR Assessment)

– 7 structurally deficient bridges (NDOR Assessment)

– 1 required underwater inspection

Bridge File Contents

NE Bridge Statute “The county highway superintendent or some other qualified person designated by the county board shall keep in his office a road record which shall include a record of the proceedings in regard to the laying out, establishing, changing, or discontinuing of all roads in the county hereafter established, changed or discontinued, and a record of the cost and maintenance of all such roads. Such person shall record in the bridge record, a record of all county bridges and culverts showing number, location and description of each, and a record of the cost of construction and maintenance of all such bridges and culverts. Such person shall cause to be firmly posted or attached upon each bridge in a conspicuous place at each end thereof a board or metal sign showing the carrying capacity or weight which the bridge will safely carry or bear.” (Neb. Rev. Stat. § 39-1411).

Establish a Filing System

n Assemble mandatory components of Bridge Records per NDOR BIP Manual

n Maintain hard copy or electronic records of each component

n Have a hard copy file for each bridge segmented by components, have a list of electronic files and network locations

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Mandatory Components of Bridge File and Records

From NDOR BIP Manual, Revision 2, 2013

File Management

PLANS / SPECS

REPORTS / INSPECTIONS / MAINENANCE

SITE PHOTOS BRIDGE FILE

BRIDGE FILE CABINET

Original Plans and Specs

n Maintaining the original plans is key to maintenance and repair operations.

Inspection Tracking and Load Ratings

n Maintain bridge inspections prepared for each bridge.

n Review load rating reports, update bridge signage.

n Log loads that exceed bridge load limits.

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Maintenance Documentation

n Crews document any maintenance/ repair work completed on bridges.

n All documentation kept in bridge file.

Scour Critical Bridges

n Maintain P.O.A. Inspection Log

n Complete inspections after major storm events

n 3 inches of rain in 24 hours for Sarpy bridges

Scour Critical Bridges

n NDOR Completes Bridge Scour Assessments for bridges

n Keep Scour Documentation in Bridge file

Bridge Scour Plan of Action (P.O.A.)

Form 385c n Closure Plan n Notification of Maintenance, Public Safety, and Media Contacts n Detour Route

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Site Photos

n Photos can show how the bridge has changed over time

2003 2003

2007 2014

Index of Electronic Files

n Create an electronic file index for each bridge file if some files are electronic only.

n Keep a paper copy of index in hard copy bridge file

Bridge 46

Bridge Data Tracking

Excel Bridge Tracking

n  Information organized and quickly accessible

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Tracking Load Ratings

n Sortable columns provides fast planning assistance

Overall Bridge Map

n Bridge Summary in AutoCAD or GIS provides convenient graphical representation.

Specialized Maps

n CAD or GIS Layers simplifies efforts for making custom maps as needed

Structurally Deficient Bridges

Key Resources

n NDOR Bridge Inspection Manual n NDOR Bridge Personnel n Sarpy County Public Works Staff

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Questions?