DEPARTMENT OF PUBLIC WORKS BUREAU OF ENGINEERING & CONSTRUCTION STRUCTURAL DESIGN SECTION...
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Transcript of DEPARTMENT OF PUBLIC WORKS BUREAU OF ENGINEERING & CONSTRUCTION STRUCTURAL DESIGN SECTION...
![Page 1: DEPARTMENT OF PUBLIC WORKS BUREAU OF ENGINEERING & CONSTRUCTION STRUCTURAL DESIGN SECTION REPLACEMENT OF BRIDGE NO. B-0427 ON DAIRY ROAD OVER OWL BRANCH.](https://reader035.fdocuments.in/reader035/viewer/2022062515/56649cc55503460f9498e8c4/html5/thumbnails/1.jpg)
DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
REPLACEMENT OF BRIDGE NO. B-0427 ON DAIRY ROAD OVER OWL BRANCH
2014 Maryland Concrete Conference
Kevin J. Sabolcik, P.E.
Baltimore County DPW
David Berkhimer
Brawner Builders, Inc.
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AN ECONOMIC APPROACH TO A SMALL BRIDGE REPLACEMENT PROJECT
OR
‘BRIDGE ON THE QUICK & CHEAP’
DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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Problem Analysis – Decision Process
Design
Construction
Conclusion
DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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What is a project?
A series of planned events undertaken in a systematic manner to achieve a specific outcome while balancing the constraints
of schedule, cost and performance or quality.
DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
Existing Structure
• Built Circa 1920
• Concrete Slab w/Encased Steel Beam Superstructure
• Concrete Abutments on Spread Footings
• 16’ Long Span, 20’ Clear Roadway, 24’ Out to Out Width
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Bridge No. B-0427 Dairy Road Elevation
DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
Bridge B-0427 Dairy Road Approach
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
Interim Action
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
Structure Condition
• Overall Sufficiency Rating ≈ 38%
• Superstructure in Poor Condition
• Substructure in Satisfactory Condition
• Some Minor Lowering of the Stream Bottom along Abutments/Exposed Footings
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
Dairy Road Characteristics
• Rural Local Road (Northern Balt. Co.)
• Width Varied 16’ to 18”
• Tangential / Flat Alignment
• ADT ≈ 575 VPD/2% TRUCKS
• 30 MPH Design Speed
• No History Of Accidents At Site
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
Other Design Consideration
• Adjacent Overhead Utilities
• Soil Borings Indicated 10’ Silt/Sand Mix, 15’ Decomposed Rock then Rock
• No ROW beyond Existing Footprint
• USE III Waterway (10/1 to 4/30 Restriction)
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
Project Needs
• Need to Replace Deteriorated Structure
• Safety – Current Code (Loads, Widths, Barriers, etc.)
• Get In – Get Out – Stay Out
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
Project Wants
• Want to Avoid Right of Way Acquisition – Highest Priority
• Want to Minimize Permitting & Utility Issues – Secondary Priority
• Want Most Cost Effective Solution – Lowest Priority
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
Design Direction
• Leave Existing Abutments for Scour Protection & Minimize Stream Impacts
• Maintain Low Chord/Road Profile
• 24’ Clear Roadway Width (Design Exception Documented)
• Reinforced Precast Concrete Slabs
• Cast-in-Place Concrete Abutments on Micro-Piles.
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
Performance Specification for Pile
Foundation
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
Conclusions
• Total Project Cost ≈ $500,000
• Total Project duration < 12 Months
• Avoided ROW Issues by Discussing Project with Adjacent Property Owners
• Achieved Project Purpose
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DEPARTMENT OF PUBLIC WORKSBUREAU OF ENGINEERING & CONSTRUCTION
STRUCTURAL DESIGN SECTION
QUESTIONS???
Teamwork