Stream Stability at Highway Structures

Stream Stability at Highway Structures

Report Date February 1991 6. Performing Organization Code STREAM
STABILITY AT HIGHWAY STRUCTURES 8. Performing Organization Report No.
7. Author's ) P. F. Lagasse , J. D. Schall , F. Johnson , E. V. Richardson , J. R.
Richardson ...

Author:

Publisher:

ISBN: UCR:31210024977066

Category: Bridges

Page: 195

View: 851

Categories: Bridges

Stream Stability at Highway Structures

Stream Stability at Highway Structures

Significant new material in this edition includes chapters on sediment transport concepts and channel stability in gravel bed streams, as well as expanded coverage of channel restoration concepts.

Author: U.s. Department of Transportation

Publisher: Createspace Independent Pub

ISBN: 1508680825

Category: Technology & Engineering

Page: 330

View: 815

Approximately 500,000 bridges in the National Bridge Inventory (NBI) are built over streams. A large proportion of these bridges span alluvial streams that are continually adjusting their beds and banks. Many, especially those on more active streams, will experience problems with aggradation, degradation, bank erosion, and lateral channel shift during their useful life. The purpose of this document is to provide guidelines for identifying stream instability problems at highway stream crossings. Techniques for stream channel classification and reconnaissance, as well as rapid assessment methods for channel instability are summarized. Qualitative and quantitative geomorphic and engineering techniques useful in stream channel stability analysis are presented. This publication is an update of the third edition published in 2001. The HEC-20 manual covers geomorphic and hydraulic factors that affect stream stability and provides a step-by-step analysis procedure for evaluation of stream stability problems. Stream channel classification, stream reconnaissance techniques, and rapid assessment methods for channel stability are covered in detail. Quantitative techniques for channel stability analysis, including degradation analysis, are provided, and channel restoration concepts are introduced. Significant new material in this edition includes chapters on sediment transport concepts and channel stability in gravel bed streams, as well as expanded coverage of channel restoration concepts.
Categories: Technology & Engineering

Stream Stability and Scour at Highway Bridges

Stream Stability and Scour at Highway Bridges

Much of the knowledge about streams was developed by others; however,
highway engineers actively studied their ... for the Location and Design of
Bridges, (AASHTO 1982) and HEC-20 Stream Stability at Highway Structures (
Lagasse et al.

Author: Everett V. Richardson

Publisher: ASCE Publications

ISBN: 0784474656

Category: Technology & Engineering

Page: 1040

View: 572

Sponsored by the Water Resources Engineering (Hydraulics) Divsion of ASCE. This collection contains 75 papers and 321 abstracts presented at conferences sponsored by the Water Resources Engineering (Hydraulics) Division of ASCE from 1991 through 1998. The collection contains many new and expanded versions of the original papers and is designed to assist the practitioner with the concepts in evaluating stream instability and scour at bridges. Topics include: history of bridge scour research; bridge scour determination; stream stability and geomorphology; construction scour; instrumentation for measuring and monitoring; field measurement; computer and physical modeling of bridge scour; scour at culverts; and economic and risk analysis. One important paper contains 384 field measurements of local scour at piers made by the U.S. Geological Survey.
Categories: Technology & Engineering

Stream Instability Bridge Scour and Countermeasures A Field Guide for Bridge Inspectors

Stream Instability  Bridge Scour  and Countermeasures  A Field Guide for Bridge Inspectors

Code of Federal Regulations, 23 CFR Part 650, "Bridges, Structures, and
Hydraulics," Subpart C, "National Bridge Inspection Standards." 3. Federal
Highway Administration, "Recording and Coding Guide for the Structure
Inventory and ...

Author: Transportation Dept., Federal Highway Administration

Publisher: Government Printing Office

ISBN: 0160876125

Category: Technology & Engineering

Page: 47

View: 852

FHWA Publication No. FHWA-NHI-08-0106. February 2009. Explains the behavior of rivers in order to recognize changing conditions associated with unstable streams or scour at bridge foundations that may threaten the stability of the bridge. Provides tips and guidance on what to look for with regard to both stream instability, including lateral instability, degradation, and aggradation, and scour at bridges, including contraction scour, pier scour, and abutment scour. Also covered are plans of action and countermeasures, such as monitoring, flood watches, bridge closures, and river training countermeasures.
Categories: Technology & Engineering

Water Resources Engineering

Water Resources Engineering

InLevel3 analysis,mathematical and/or
physicalmodelsareusedtoevaluateandassessthe stream stability. ... Structure). for
. Stream. Instability. Countermeasures are measures incorporated into a highway
stream crossing system to monitor, ...

Author: Larry W. Mays

Publisher: John Wiley & Sons

ISBN: 9780470460641

Category: Technology & Engineering

Page: 928

View: 227

Environmental engineers continue to rely on the leading resource in the field on the principles and practice of water resources engineering. The second edition now provides them with the most up-to-date information along with a remarkable range and depth of coverage. Two new chapters have been added that explore water resources sustainability and water resources management for sustainability. New and updated graphics have also been integrated throughout the chapters to reinforce important concepts. Additional end-of-chapter questions have been added as well to build understanding. Environmental engineers will refer to this text throughout their careers.
Categories: Technology & Engineering

Rock Riprap Design for Protection of Stream Channels Near Highway Structures

Rock Riprap Design for Protection of Stream Channels Near Highway Structures

Carmany, R.M., 1963, Development of formulas to determine stone size for
protection of highway embankments: California Division of Highways, 42nd
Annual ... Gotz, W., 1978, Stabilization of river banks in semiarid regions:
Wasserwirtsch, v.

Author:

Publisher:

ISBN: UCR:31210024318733

Category: River channels

Page:

View: 892

Categories: River channels

Rock Riprap Design for Protection of Stream Channels Near Highway Structures

Rock Riprap Design for Protection of Stream Channels Near Highway Structures

Carmany, R.M., 1963, Development of formulas to determine stone size for
protection of highway embankments: California Division of Highways, 42nd
Annual ... Gotz, W., 1978, Stabilization of river banks in semiarid regions:
Wasserwirtsch, v.

Author: J. C. Blodgett

Publisher:

ISBN: UCSD:31822016409666

Category: Embankments

Page: 95

View: 194

Categories: Embankments

Bridge and Highway Structure Rehabilitation and Repair

Bridge and Highway Structure Rehabilitation and Repair

Stream Stability at Highway Structures,” Journal of Hydraulic Engineering,
Circular, Number 20, Federal Highway Administration, 1997. Technical Manual
for Land Use Regulation Program, Bureau of Inland and Coastal Regulations
Stream ...

Author: Mohiuddin Khan

Publisher: McGraw Hill Professional

ISBN: 9780071545921

Category: Architecture

Page: 656

View: 668

State-of-the-Art Bridge and Highway Rehabilitation and Repair Methods This authoritative volume offers up-to-date guidance on the latest design techniques, repair methods, specialized software, materials, and advanced maintenance procedures for bridges and highway structures. Focusing on both traditional and nontraditional design issues, Bridge and Highway Structure Rehabilitation and Repair clarifies the most recent AASHTO bridge design codes and discusses new analytical and design methodologies, such as the application of load and resistance factor design (LRFD). A wealth of concise explanations, solved examples, and in-depth case studies are included in this comprehensive resource. COVERAGE INCLUDES: Diagnostic design and selective reconstruction Bridge failure studies and safety engineering Analytical approach to fracture and failure Load and resistance factor rating (LRFR) and redesign Application of LRFD and LRFR methods Inspection and structural health monitoring Bridge widening and replacement strategies Conventional repair methods Advanced repair methods Concrete repair methods Extreme events of flood scour and countermeasures design Guidelines for seismic design and retrofit methods
Categories: Architecture

Estimation of Scour and Channel Stability for Selected Highway Crossings of Streams in Louisiana

Estimation of Scour and Channel Stability for Selected Highway Crossings of Streams in Louisiana

Lagasse , P.F. , Schall , J.D. , Johnson , F. , Richardson , E.V. , Richardson , J.R. ,
and Chang , F. , 1991 , Stream stability at highway structures : U.S. Department of
Transportation , Federal Highway Administration , FHWA - IP - 90-014 ...

Author: J. Josh Gilbert

Publisher:

ISBN: UIUC:30112101889365

Category: Channels (Hydraulic engineering)

Page: 114

View: 299

Categories: Channels (Hydraulic engineering)

Fifth International Bridge Engineering Conference

Fifth International Bridge Engineering Conference

... 2 : Stream Stability at Highway Structures ; and HEC - 23 : Bridge Scour and
Stream Instability Countermeasures . ... to state highway agencies that is
necessary for completing comprehensive scour and stream instability evaluations
for the ...

Author:

Publisher:

ISBN: UVA:X004321829

Category: Bridges

Page:

View: 810

Papers presented at the Fifth International Bridge Engineering Conference, April 3-5, 2000, Tampa, Florida.
Categories: Bridges

Flood Scour for Bridges and Highways

Flood Scour for Bridges and Highways

Level 3 Bridge scour design of stream instability countermeasures. (Refer to ...
Changes in the bed level of a stream affect highway structures and may be
described by three types of actions: general scour (contraction scour), local scour
, and ...

Author: Mohiuddin A. Khan

Publisher: McGraw Hill Professional

ISBN: 9780071825092

Category: Technology & Engineering

Page: 384

View: 682

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Proven methods for preventing and mitigating bridge and highway flood scour Offering detailed guidelines on bridge scour countermeasures, this comprehensive resource provides a proactive strategy for the design and construction of bridges to prevent scour, as well as a reactive plan for post-flood disaster management. Topics discussed include erosion, causes of scour, AASHTO design codes, hydrology, hydraulics, scour analysis, inspection methods, and modern materials technology. Real-world case studies illustrate the concepts presented. The authoritative information in this practical guide will help you to develop more efficient and cost-effective design processes and bridge management systems for river bridges subjected to floods. Flood Scour for Bridges and Highways covers: Floods, scour problems, and mitigation River instability caused by flow obstructions Past failures and bridges vulnerable to failure Geotechnical and hydraulic issues at scour-critical rivers and bridges Hydrology, floods, and scour-critical bridges Estimating scour depths and selecting applicable countermeasures Inspections, ratings, and monitoring countermeasures FHWA, HEC-18, and HEC-23 scour countermeasures as remediation Innovative methods of flood control and disaster management
Categories: Technology & Engineering

Transportation Research Record

Transportation Research Record

20 , " Stream Stability at Highway Structures . " ( 4 ) The completion of each level
of analysis results in an assessment . of stream stability , and then , depending on
the complexities of stream response or bridge design , the decision to proceed ...

Author:

Publisher:

ISBN: UOM:39015023295978

Category: Roads

Page:

View: 681

Categories: Roads

Hydraulic Design Handbook

Hydraulic Design Handbook

15.9 STREAM STABILITY AT HIGHWAY STRUCTURES 15.9.1 Basic
Engineering Analysis The factors that affect stream stability and potentially bridge
stability at highway stream crossings can be classified as geomorphic factors (
Fig .

Author: Larry W. Mays

Publisher: McGraw-Hill Professional Publishing

ISBN: UOM:39015047536274

Category: Technology & Engineering

Page: 1024

View: 482

Providing current; best practice methods; tips; guidelines; and examples to help you handle any hydraulic design challenge; this all-inclusive; authoritative text will save you hours of searching through journals and fine-print government publications. --
Categories: Technology & Engineering

Stormwater Collection Systems Design Handbook

Stormwater Collection Systems Design Handbook

The guidance for considerations and design of debris control structures can be
found in FHWA HEC-No. 9 (Reihsen and Harrison., 1971). 15.9 STREAM
STABILITY AT HIGHWAY STRUCTURES 15.9.1 Basic Engineering Analysis The
factors ...

Author: Larry W. Mays

Publisher: McGraw Hill Professional

ISBN: 9780071382786

Category: Technology & Engineering

Page: 1008

View: 698

* A comprehensive overview of stormwater and wastewater collection methods from around the world, written by leading experts in the field * Includes detailed analysis of system designs, operation, maintenance and rehabilitation * The most complete reference available on the subject
Categories: Technology & Engineering

Managing Water

Managing Water

QUANTITATIVE TECHNIQUES FOR STREAM STABILITY ANALYSIS P.F.
LAGASSE , S.A. SCHUMM , AND L.W. ... Evaluating Scour at Highway Bridges (
Richardson and Davis 1995 ) ; and Stream Stability at Highway Structures , HEC
- 20 ...

Author: International Association for Hydraulic Research. Congress

Publisher: Amer Society of Civil Engineers

ISBN: UOM:39015041294789

Category: Technology & Engineering

Page: 935

View: 435

This catalogue presents a complete survey of the surviving autographs of Handel's music--more than 7,500 leaves in the composer's hand written over a perod of nearly fifty years. Works and movements for which autographs survive are identified, and essential information about the physical characteristics are recoded, including the watermark type for each leaf of paper, the types of rastra employed, and the presence of pencil annotations. All watermark types are illustrated with full-size diagrams.
Categories: Technology & Engineering

Estimation of Scour and Channel Stability for Selected Highway Crossings of Rivers in the Florida Parishes Southeastern Louisiana

Estimation of Scour and Channel Stability for Selected Highway Crossings of Rivers in the Florida Parishes  Southeastern Louisiana

At the Interstate Highway 10 crossings of the Pearl , Middle , and West Pearl
Rivers , the maximum pier scour ranged from ... F. , 1991 , Stream stability at
highway structures : U.S. Department of Transportation , Federal Highway
Administration ...

Author: J. Josh Gilbert

Publisher:

ISBN: UIUC:30112075671773

Category: Channels (Hydraulic engineering)

Page: 86

View: 478

Categories: Channels (Hydraulic engineering)

Stream Channel Migration Effects on Bridge Approaches and Conveyance

Stream Channel Migration Effects on Bridge Approaches and Conveyance

( Continued ) Bridge scour and stream instability countermeasures ( Lagasse et
al . ... 20 : Legesse , P.F.J.D. Schal , F. Johnson , E.V. Richardson , F. Chang ,
1996 , " Stream Stability at Highway Structures , Hydraukc Engineering Circular
No.

Author: Ben Chie Yen

Publisher:

ISBN: NWU:35556028264398

Category: Bridges

Page: 153

View: 675

The main objective of this project is to investigate channel protection techniques, especially those with low-cost and low-maintenance, for control of channel migration near bridge approaches. Such low cost techniques are more applicable to small streams than to large rivers. A literature review was conducted. Channel migration is mitigated either through protection of the bank and/or bed erosion and considerable deposition, or through instream structures to redirect the flow, or both. Useful control techniques include: instream structures such as bendway weirs, riprap and masonry revetment, bioengineering techniques such as willow posts, and geosynthetic membranes. Advantages and disadvantages of these techniques are summarized. Based on the information obtained from a survey of Illinois bridge sites and under the guidance of the Technical Review Panel, four sites were selected for further study of applicability of the protection techniques. For every site it has been identified that the meander pattern of the stream is a major factor for the scour and flow action endangering bridge safety. Therefore, the general goals of the suggested alternative actions are to stabilize and/or improve the stream meander alignment and to control and protect against local bank scour. The alternatives for a site range from positive "active" control structures to "passive" protection and sediment deposition enhancement. Generally, the more "active" alternatives are more costly but have less failure risk when compared to the more "passive" alternatives.
Categories: Bridges

Research Problem Statements

Research Problem Statements

Because highway engineers lack the proper tools to address increased
regulatory concerns regarding stream channel stability ... FHWA HEC - 20 “
Stream Stability at Highway Structures ” provides an overview and methodology
for analyzing ...

Author:

Publisher:

ISBN: IND:30000133233027

Category: Hydraulics

Page: 39

View: 983

This Circular contains twenty-seven research problem statements developed by the TRB Committee on Hydrology, Hydraulics, and Water Quality (A2A03). Much of the effort toward the development of these statements was accomplished at the Committee's summer meeting, July 22 and 23, 1996, in Baltimore, Maryland. This Circular updates and replaces TRB Circular 405, which was the previous compilation of Research Problem Statements by the Committee.
Categories: Hydraulics

A Policy on Geometric Design of Highways and Streets 1994

A Policy on Geometric Design of Highways and Streets  1994

Drainage Highway drainage facilities provide for carrying water across the right -
of - way and for removal of storm water ... Stream Stability at Highway Structures (
45 ) is an excellent and comprehensive reference that may be used to analyze ...

Author: American Association of State Highway and Transportation Officials

Publisher: American Association of State Highway & Transportation Officials

ISBN: UCSD:31822028594430

Category: Highway engineering

Page: 1006

View: 808

A Policy on Geometric Design of Highways and Streets, provides the design professional guidance by referencing a recommended range of values for critical dimensions and design.
Categories: Highway engineering