Policy and Memos
Regulation
- 23 CFR 650 Subpart A Location and Hydraulic Design of Encroachments on Flood Plains 11/26/1979
- 23 CFR 650 Subpart B Erosion and Sediment Control on Highway Construction Projects
- 23 CFR 650 Subpart H Navigational Clearance for Bridges 07/28/1987
- Culvert Pipe Selection Final Rule 01/28/2013
- Executive Order 11988 - Floodplain Management and Protection 05/24/1977
- Executive Order 13690 - Establishing a Federal Flood Risk Management Standard and Process for Considering Stakeholder Involvement 01/30/2015
Policy
- Additional Guidance for Assessment of Bridges Over Waterways with Unknown Foundations 10/29/2009
- Agreement for the Implementation of Scour Countermeasures to Protect Foundations of Scour Critical Bridges 02/11/1997
- Backwater Criterion for Hydraulic Design of Structures 04/21/1992
- Dam as a Foundation for a Highway 12/09/1991
- Design Standards for Highways in National Flood Insurance Program Mapped Floodplains 04/02/1986
- DOT Order 5650.2 - Floodplain Management and Protection 04/23/1979
- Federal Flood Risk Management Standard (FFRMS) 01/30/2015
- Final Rule: Culvert Pipe Selection 04/22/2013
- Frequently Asked Questions - Bridges Over Waterways with Unknown Foundations 06/03/2009
- Highway Embankments versus Levees and other Flood Control Structures 09/10/2008
- Highways Affected by Water Resources Development Projects 12/09/1991
- MAP-21: Section 1525 Interim Policy Guidance 10/09/2012
- Procedures for Coordinating Highway Encroachments on Floodplains with the Federal Emergency Management Agency (FEMA) 06/25/1982
- Revision of Coding Guide, Item 113 - Scour Critical Bridges 04/27/2001
- Significant Encroachments 04/02/1985
- Transportation System Preparedness and Resilience to Climate Change and Extreme Weather Events (FHWA Order 5520) 12/14/2014
Guidance
- Compliance with the National Bridge Inspection Standards - Background/Plan of Action for Scour Critical Bridges/Scour Focus States/Item 113 Coding Issues/Unknown Foundations/Tidal Bridges 03/23/2006
- Compliance with the National Bridge Inspection Standards - Plan of Action for Scour Critical Bridges 03/29/2005
- Design for Fish Passage at Roadway-Stream Crossings: Synthesis Report 06/01/2007
- Eligibility of Activities To Adapt To Climate Change and Extreme Weather Events Under the Federal-Aid and Federal Lands Highway Program 09/24/2012
- Evaluating Scour at Bridges (T 5140.23) 10/28/1991
- Geotechnical Guideline No. 16 - Determination of Unknown Subsurface Bridge Foundations 08/27/1998
- Guidance for Implementing the One-Foot Standard for Encroachments on NFIP Floodplains 12/22/1986
- Guidance for Preparing and Processing Environmental and Section 4(F) Documents (T6640.8A) 10/30/1987
- Guidance on Applying Risk Based, Data Driven Decision-Making Process to the FHWA Scour Program 04/09/2012
- Guidelines for Implementing EO 11988 and EO 13690 - Appendices A through H 10/08/2015
- Guidelines for Implementing EO 11988, Floodplain Management,and EO 13690, Establishing a Federal Flood Risk Management Standard and a Process for Further Soliciting and Considering Stakeholder Input 10/08/2015
- HDS 2 - Highway Hydrology (2nd edition) 10/01/2002
- HDS 3 - Design Charts for Open-Channel Flow 08/01/1961
- HDS 4 - Introduction to Highway Hydraulics 06/01/2008
- HDS 5 - Hydraulic Design of Highway Culverts (3rd edition) 02/01/2012
- HDS 6 - River Engineering for Highway Encroachments 12/01/2001
- HDS 7 - Hydraulic Design Safe Bridges 04/01/2012
- HEC 09 - Debris Control Structures Evaluation and Countermeasures (2nd edition) 10/01/2005
- HEC 14 - Hydraulic Design of Energy Dissipators for Culverts and Channels (2nd edition) 07/01/2006
- HEC 15 - Design of Roadside Channels with Flexible Linings (3rd) 09/01/2005
- HEC 17, 2nd Edition Highways in the River Environment - Floodplains, Extreme Events, Risk, and Resilience 06/01/2016
- HEC 18 - Evaluating Scour at Bridges (5th edition) 04/01/2012
- HEC 20 - Stream Stability at Highway Structures (4th edition) 04/01/2012
- HEC 21 - Bridge Deck Drainage Systems 05/01/1993
- HEC 22 - Urban Drainage Design Manual (3rd edition) 09/01/2009
- HEC 23 - Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance (3rd edition, Volume 1) 09/01/2009
- HEC 23 - Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance (3rd edition, Volume 2) 09/01/2009
- HEC 24 - Highway Stormwater Pump Station Design 02/01/2001
- HEC 25 - Highways in the Coastal Environment (2nd edition) 06/01/2008
- HEC 25 Volume 2 - Highways in the Coastal Environment: Assessing Extreme Events 10/01/2014
- HEC 26 - Culvert Design for Aquatic Organism Passage 10/01/2010
- Storm Drainage, Cast-In-Place Non-Reinforced Concrete Pipe, Flood Plain Encroachments and Highways In National Flood Insurance Program Mapped Floodplains, Coordinating Highway Encroachments on Floodplains With FEMA 23 CFR 650 A - NS Sec. 650.115 09/30/1992
Information
- Culvert Selection 10/01/2012
- MOA between The U.S. Coast Guard and FHWA To Coordinate and Improve Bridge Planning and Permitting 01/14/2014
- MOU between The U.S. Coast Guard and FHWA, FTA, and FRA To Coordinate and Improve Bridge Planning and Permitting 01/14/2014
- NTSB Highway Accident Reports 08/01/2007