LRFD Design Manual Design ManualUpdated on July 30, 2025Complete design manualComplete design manual as of April 2023Summary of updates to manualRelated LinksCADD bridge standard plan files and design manual and commentary disclaimer LRFD Design ManualCommentaryPrefaceCommentary1. General DesignCommentary2. Sustainable Bridge Design 3. Preliminary Design of BridgesCommentary4. Preliminary Design of CulvertsCommentary5. Bridge Superstructure Design5.1 General 5.2 DeckCommentary5.3 HaunchCommentary5.4 Pretensioned Prestressed Concrete GirderCommentary5.5 Steel GirderCommentary5.6 Concrete SlabCommentary5.7 BearingsCommentary5.8 Additional Components 5.8.1 RailingsCommentaryBridge Rail Guide5.8.2 Pedestrian facilities 5.8.3 Expansion JointCommentary5.8.4 Deck DrainsCommentary5.8.5 Reinforcement protectionCommentary5.8.6 Approach Slabs 6. Bridge Substructure Design6.1 General 6.2 PilesCommentaryLRFD Pile Design ExamplesLRFD workshop on bridge foundations consisting of driven piles in Iowa6.3 Drilled ShaftsCommentary6.4 Spread FootingsCommentary6.5 AbutmentsCommentary6.6 PiersCommentaryAppendix for Technical Documents6.7 Retaining walls 7. CulvertsCommentaryPrecast Barrel Design Methodology8. Accelerated Bridge Construction 9. Bridge AestheticsCommentary10. Special Structures10.2 Sign Supports ASD/LFD manual sectionCommentary11. Falsework DesignCommentary12. Bridge and Culvert Inspection, Rating and Repair12.1 Bridge RepairCommentary13. CADD NotesCommentaryContact Bridge Methods Email Address Bridge.Methods@iowadot.us For inquiries regarding the Bridges and Structures Bureau Design Manual, Standards, and CADD workflows. Secondary Navigation Menu Design Policies LRFD Design Manual 2012 LRFD Workshop on Bridge Foundations Bridge & Culvert Plan Checklist Design Criteria Project Deliverables
Design ManualUpdated on July 30, 2025Complete design manualComplete design manual as of April 2023Summary of updates to manualRelated LinksCADD bridge standard plan files and design manual and commentary disclaimer LRFD Design ManualCommentaryPrefaceCommentary1. General DesignCommentary2. Sustainable Bridge Design 3. Preliminary Design of BridgesCommentary4. Preliminary Design of CulvertsCommentary5. Bridge Superstructure Design5.1 General 5.2 DeckCommentary5.3 HaunchCommentary5.4 Pretensioned Prestressed Concrete GirderCommentary5.5 Steel GirderCommentary5.6 Concrete SlabCommentary5.7 BearingsCommentary5.8 Additional Components 5.8.1 RailingsCommentaryBridge Rail Guide5.8.2 Pedestrian facilities 5.8.3 Expansion JointCommentary5.8.4 Deck DrainsCommentary5.8.5 Reinforcement protectionCommentary5.8.6 Approach Slabs 6. Bridge Substructure Design6.1 General 6.2 PilesCommentaryLRFD Pile Design ExamplesLRFD workshop on bridge foundations consisting of driven piles in Iowa6.3 Drilled ShaftsCommentary6.4 Spread FootingsCommentary6.5 AbutmentsCommentary6.6 PiersCommentaryAppendix for Technical Documents6.7 Retaining walls 7. CulvertsCommentaryPrecast Barrel Design Methodology8. Accelerated Bridge Construction 9. Bridge AestheticsCommentary10. Special Structures10.2 Sign Supports ASD/LFD manual sectionCommentary11. Falsework DesignCommentary12. Bridge and Culvert Inspection, Rating and Repair12.1 Bridge RepairCommentary13. CADD NotesCommentaryContact Bridge Methods Email Address Bridge.Methods@iowadot.us For inquiries regarding the Bridges and Structures Bureau Design Manual, Standards, and CADD workflows. Secondary Navigation Menu Design Policies LRFD Design Manual 2012 LRFD Workshop on Bridge Foundations Bridge & Culvert Plan Checklist Design Criteria Project Deliverables
Bridge Methods Email Address Bridge.Methods@iowadot.us For inquiries regarding the Bridges and Structures Bureau Design Manual, Standards, and CADD workflows.
Bridge Methods Email Address Bridge.Methods@iowadot.us For inquiries regarding the Bridges and Structures Bureau Design Manual, Standards, and CADD workflows.
