ACTIVE DESIGN MEMORANDUMS
MEMORANDUMS NOT INCLUDED IN THE LATEST UPDATE OF THE BRIDGE DESIGN MANUAL
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| Number |
Date |
Subject |
14-2009
|
10/28/2009
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Prestressed Girder Dimensions and Allowable Concrete Compressive Stress
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13-2009
|
10/06/2009
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Design of Steel Reinforced Elastomeric Bearings
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12-2009
|
08/20/2009
|
Confinement Reinforcement for Columns and Shafts
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11-2009
|
07/17/2009
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LRFD Guide Specs For Pedestrian Bridges
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10-2009
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07/15/2009
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Skin Reinforcement Requirement
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09-2009
|
07/07/2009
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Interface Shear Transfer - Shear Friction Design
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08-2009
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06/23/2009
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Reduced Column Base Fixity
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07-2009
|
05/06/2009
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Electronic Plan Sharing Policy
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06-2009
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04/22/2009
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Curved Precast Girders
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05-2009
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04/16/2009
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Computer Generated Design Calculations
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04-2009
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04/10/2009
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AASHTO Guide Specifications for LRFD Seismic Bridge Design Amendments
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03-2009
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03/18/2009
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Deep Foundation Program Options
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02-2009
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03/14/2009
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Minimum Depth Limitations on Precast Slab Members
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17-2008
|
12/15/2008
|
Load Rating Requirement for Complex Bridges
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16-2008
|
12/12/2008
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Approach Slab Details
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13-2008
|
10/02/2008
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Bridge Mounted Signs
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11-2008
|
09/05/2008
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Maximum Superstructure Length
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10-2008
|
08/04/2008
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Wall Type Design and Stamping/Signing Responsibilities for Special Design Retaining Walls
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09-2008
|
07/28/2008
|
Full Depth Intermediate Diaphragms
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08-2008
|
07/18/2008
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Column-Shaft Connection Design and Detailing Recommendation
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06-2008
|
06/04/2008
|
Bridge and Structures Office Contract Plan Seal and Signature Policy
|
04-2008
|
05/16/2008
|
Positive Moment Connection at Intermediate Piers
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02-2008
|
02/08/2008
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STD Plan Retaining Wall
|
01-2008
|
01/29/2008
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Steel Truss Bridge Gusset Plates
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16-2007
|
12/06/2007
|
LRFD General Notes - Pile Foundation
|
15-2007
|
11/29/2007
|
Pipeline Encasement
|
13-2007
|
10/03/2007
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New Limits for Long Span Prestressed Girders
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12-2007
|
09/13/2007
|
LRFD Shear Design
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11-2007
|
08/28/2007
|
Web bursting Reinforcement for Curved Post-Tensioned Bridges
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10-2007
|
07/10/2007
|
Damaged Prestressed Girder Replacement Protocol
|
09-2007
|
05/24/2007
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Load Factor for Live Load in Extreme Event I
|
08-2007
|
05/18/2007
|
Bridge Deck Overlay
|
07-2007
|
05/16/2007
|
Soldier Pile and Lagging Design Requirements
|
06-2007
|
04/30/2007
|
AASHTO LRFD 4th Edition 2007
|
05-2007
|
04/16/2007
|
Noise Barrier Wall on Bridges and Retaining Walls
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04-2007
|
03/04/2007
|
Revisions to Prestress Losses
|
02-2007
|
01/23/2007
|
Bridge Design Office Guidelines on QC/QA
|
01-2007
|
01/18/2007
|
Simplified Wind Load
|
11-2006
|
12/23/2006
|
Splitting Resistance of Pretensioned Anchorage Zones
|
10-2006
|
11/28/2006
|
Elastomeric Bearing for Prestressed Girders
|
09-2006
|
10/08/2006
|
Flexural Resistance Factor
|
07-2006
|
08/26/2006
|
Restriction on CIP Reinforced Concrete Box Girder Superstructures
|
06-2006
|
08/20/2006
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Design Guidance for Non-Redundant Steel Box Girder Bridges
|
05-2006
|
08/12/2006
|
A-Dimension Revisions
|
04-2006
|
07/26/2006
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Spliced-Girder Closures
|
02-2006
|
04/20/2006
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CDF for Soldier Pile Tieback Walls
|
01-2006
|
02/27/2006
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Concrete Deck Slab Reinforcement
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05-2005
|
09/06/2005
|
LL Distribution Factor for CIP Box Girders
|
04-2005
|
09/06/2005
|
Use of Deck Members for Bridges
|
03-2005
|
04/06/2005
|
Steel Reinforced Elastomeric Bearing Design
|
02-2005
|
03/07/2005
|
Mylar Modification Policy
|
01-2005
|
03/01/2005
|
Prestressed Girder Dimensions
|
04-2004
|
08/16/2004
|
Cost Estimate Review Procedures
|
01-2004
|
03/18/2004
|
Release of Temporary Strands In Prestressed Girders
|
03-2003
|
11/20/2003
|
LRFD Deck Overhang Design Parameters
|
01-2003
|
08/21/2003
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Detailing Procedure for Retaining Walls
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13-2002
|
10/24/2002
|
BDM Section 9.2-4 Location of Confinement Zones, Extension of Reinforcing Into Crossbeams, Footings and Shafts
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12-2002
|
09/30/2002
|
Concrete Deck Slab Details
|
11-2002
|
09/25/2002
|
Segment Limits For Steel Girders
|
10-2002
|
09/18/2002
|
Field Splice Tolerances
|
09-2002
|
09/17/2002
|
LRFD General Notes - Pile Foundation
|
08-2002
|
08/16/2002
|
Bridge Bearing Replacement Provisions
|
07-2002
|
07/23/2002
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S-I-P Precast Concrete Deck Panel
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06-2002
|
07/17/2002
|
Calculation of Shipping Losses in Prestressed Girders
|
05-2002
|
06/24/2002
|
Bridge Approach Slab Layout
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04-2002
|
04/02/2002
|
CIP Fascia Panels on Soldier Piles
|
02-2002
|
02/26/2002
|
Hydraulic Jack Design Requirements
|
01-2002
|
02/25/2002
|
LRFD Seismic Design
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16-2001
|
12/04/2001
|
LRFD Wingwall Design
|
15-2001
|
12/04/2001
|
Long Span Prestressed Girders
|
14-2001
|
11/09/2001
|
Bridge Approach Slabs
|
13-2001
|
10/23/2001
|
Hydraulic Jack Design Requirements
|
12-2001
|
09/18/2001
|
Prestressed Concrete and Steel I Girder Bridge Widening
|
10-2001
|
08/17/2001
|
LRFD Deck Overhang Design
|
09-2001
|
07/12/2001
|
Anchor Bolt Specifications
|
06-2001
|
06/11/2001
|
Steel Reinforced Elastomeric Bearings
Method A Design Procedure
|
05-2001
|
06/04/2001
|
Bridge Drain Types 7 and 8
|
03-2001
|
05/14/2001
|
Design Policy Memo - C-I-P Load Distribution
|
02-2001
|
04/24/2001
|
Prestressed Girder Stops - (Construction Plan Details)
|
01-2001
|
04/13/2001
|
Prestressed Girder Stops
|
07-2000
|
11/01/2000
|
BDM, Section 8.3.2-1 Bridge Traffic Barriers
|
06-2000
|
07/13/2000
|
Modification of Bridge and Structures Office Policy Shoring Design for Structures Adjacent to Railroads
|
04-2000
|
04/30/2000
|
Archiving Design Calculations, Design Files, and S&E Files
|
03-2000
|
04/18/2000
|
Unit Weight of Reinforced Concrete
|
02-2000
|
04/17/2000
|
Approval to use of 11"x17" Paper Plan Sheets
|
07-1999
|
12/22/1999
|
Stiffness of RC Column in seismic analysis
|
06-1999
|
12/21/1999
|
Concrete Surface Finishes
|
03-1997
|
08/01/1997
|
LFD Fatigue Criteria
|
02-1997
|
07/29/1997
|
BDM Section 9.2-4 Location of Confinement Zones Extension of Confinement Reinforcing Into Crossbeams and Footings
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