The bridge drainage systems covered in this section includes the bridge deck gutter, drainage inlets, downspouts and longitudinal stormwater drain pipes suspended under the deck slab. Our range of bridge deck waterproofing solutions consist of. Ensure conformance with the mto drainage management manual design standards and with the chbdc requirements. Provide drains that function properly with adequate maintenance. Envirodeck is the number one selling bridge drainage system for the uk and ireland. Bridge deck drainage systems have to be solid, easy to install and to maintain. Sep 09, 2018 how to create a composite bridge deck design example. This software and other files are intended for use by consultants working for the bridges and structures bureau in their development of projects for the iowa department of transportation. Drideck is a complete solution for the collection of water at the subsurface level that can be used in conjunction with our envirodeck kerb drainage systems. In hecras, the user only needs to define the blocked out area that is not part of the ground. Additional data may be required to apply other analysis.
Envirodeck combined bridge drainage system installation guide. From a hydraulic point of view, inlets should be large and widely separated. Perform integrated loading, analysis, and code checking of small to mediumspan bridges. United fiberglass bridge drain systems provide the performance, durability and value you need for your most demanding projects. Bridge drains also known as bridge scuppers available at j. Soli deck is an engineered precast concrete slab used commonly in bridge deck applications. For more information on our fiberglass bridge drainage systems please check out the pdf below or contact us. An inlet is a common location for debris to collect and potentially clog a drainage system. Bridge deck drainage systems expansion joints technical.
Fastflow bridge deck drainage provides a complete drainage solution for both bridges and standard groundworks. It includes design theory, stepbystep design procedures, and illustrative examples. Figure 2 shows a portion of this model from the obms. The bridge design manual shall be consulted for deck drain policy requirements. Deck drains consist of onehalf round perforated corrugated galvanized metal pipe 8in. Hydraulic capacities of commonly used sewer inlets, ditch inlets, and bridge deck drains are not well known and this seriously impedes attempts to rationalize the design of road and bridge deck drainage systems. Each is highly resistant to calcium and road salt corrosion. We design our bridge deck products to accommodate any superstructure configuration as well as incorporate features. However, no warranty is expressed or implied by the georgia department of transportation as to the explicit accuracy and functioning of the program. Bridgelink links together several different bridge engineering software tools into one convenient and easy to use platform. Bridge drain systems united fiberglass of america can help you design an efficient, costeffective fiberglass bridge drainage system from scratch. Because of the difficulties in providing for and maintaining adequate deck drainage systems, gutter flow from the roadway should. The software tools included in bridgelink are betoolbox, pgsplice, pgsuper, toga, and xbrate.
Design of bridge deck drainage a pdh online course for. We manufacture a range of products for crossing an existing or new. Any other use is at the sole discretion of the user. Bridge manual new york state department of transportation office of structures 4th edition 1st us customary edition april 2006 key for revisions. Among the design features that improve durability are optimum cover of the reinforcement not too small, not too large, good drainage, smaller skews, and thicker slabs. April 20 nmdot bridge procedures 11 and design guide chapter one general information the new mexico department of transportation uses the current edition of the aashto. The installation process for the under deck drainage system is explained here though a series of indepth videos and written instructions. Jun 24, 20 envirodeck is the number one selling bridge drainage system for the uk and ireland. Thompson consultant tony merlo ontario ministry of transportation. Bridge manual new york state department of transportation. Drainage highway drainage federal highway administration. Furnish and place a deck drain system for a thrugirder railroad underpass structure.
The bridge drain is made from astm a48 class 35 gray iron and the grates are made from astm a536 grade 65. The program will inform the user if drains are required. Many bridge deck engineers have questioned the need for bridge deck drainage appurtenances, at leaset to the extent presently included in the typical bridge design. If bridge geometry is such that drains are required, the number of drains should be minimized as much as possible while still providing a bridge deck drainage design that meets required standards. The manual provides guidelines and procedures for designing bridge deck drainage systems, including illustrative examples. Our underdeck drainage and framing systems are as smart as our highperformance decking, making trex an allaround luxury partner for the outdoors. Design software georgia department of transportation. Pam cast iron are solid and modular systems to ease handling and installation. This 6 hour course, design of bridge deck drainage will cover several.
Hydraulic performance of small scale bridge deck drains. These decking calculators will help guide you through the process of building your deck, giving you access to design plans. Bridge deck site for all rainfall events monitored, loop 289, lubbock, tx67 table b6. We manufacture a range of products for crossing an existing or new expansion joint. The bridge deck drain spreadsheet may be used to assist the designer in locating deck drains. My problem will be how to keep this underdeck area as dry as possible. Deckdrain drainage geocomposite abg deckdrain is a high performance geocomposite drainage system. Bridge deck drainage roadway and bridge deck profiles shall be adjusted as much as possible to avoid having bridge drains on the bridge. Section 5 bridge decks new york state department of. This 6 hour course, design of bridge deck drainage will cover several topics including the rational method for determining the flow rate of stormwater, bridge grade requirements, piping design and other topics that are essential to a safe and efficient design of bridge deck drainage. The full bridge or portions bottleneck can be equipped with this system consisting of elements of mm, tpieces crosses and drain wells. Some of these programs have advanced functionality that not only helps you to create composite bridge deck design example, but also uses the cost calculator to estimate the cost of the project.
Bridgelink is an integrated suite of bridge engineering software. However, it should be noted that an approach roadway with a rural typical section drains more easily than a bridge deck with parapets where the deck will. A combination of innovative design and a composite nonmetallic material gives a onepiece unit that is lighter. Structural bridge design bridge analysis software autodesk.
For the users convenience, all design graphs and nomographs appear in an appendix. How to create a composite bridge deck design example. A deck drainage system creates a dry, usable space underneath your secondstory deck and protects your deck substructure from moisture which can. When defining the crosssection at a bridge, in hec2, the user is required to input stations that followed along the ground of the lob, then across the bridge deckroadway embankment. Special specification 4158 railroad bridge drain system. There can be exceptions that deviate from the policies shown. Bridge deck drainage systems are to be designed to accommodate runoff using the design criteria for rainfall intensities and spread of gutter flow set forth in table 1. From new construction to replacement of aging structures and restoration of historic bridge landmarks, our fiberspanp bridge deck products offer a lowmaintenance, corrosion resistant, nonskid solution. They should be accepted as the most common uses and desirable course of action.
Results by applying this innovative bridge drainage. The primary goal in the design of the bridge deck slab drainage system is to limit the amount of. The departments practice for bridge deck drainage has been to use sufficient deck drains. This spreadsheet was developed to aid the design of typical strip seal expansion joints. This document presents criteria to determine if bridge drainage scuppers and drains are required. Omega performed all hydrology and hydraulics studies and engineering for the project, including bridge hydraulics, scour analysis, inline detention and retention mitigation, culvert layouts, storm sewer and bridge deck drainage design, an impact study for keystone dam, fema floodplain mitigation, and broken back culvert analysis. The highways agency has highlighted the need for effective subsurface drainage to prevent serious damage to the waterproof membrane and pavement. Ensure conformance with the mto drainage management manual design standards and with the.
Control spread and depth of water to maintain tire traction. Bridge deck drainage system fastflow the graph provides a guide to the size of unit necessary to achieve a required flow. You may need to scroll horizontally to view all table columns. Bridge deck drainage is often less efficient than roadway sections because cross slopes are flatter and drainage inlets or scuppers are less hydraulically efficient and more easily clogged by debris. This chapter describes aspects of highway drainage such as that for a culvert, bridge, stormwater drainage, storage facility, pump station, or channel work. References to material in 2011 design manual have been highlighted in blue throughout this document. The bridge industry is a virtual tradeshow for the bridge community, accessible for free 247 from every corner of the world. Here at hennegan and associates we strive to fulfill all of your drainage needs. Envirodeck provides both surface drainage and subsurface drainage. To help you get a better ideas of the quantity and cost of materials youll need, as well as measurements and specifications to build your deck according to a plan, weve created several deck building calculators. Matacryl ws bonds with the substrate and provides a sealed wear layer in combination with a flexible, crackbridging barrier membrane and. Kenway provides a range of composite bridge drainage pipes and drainage components.
Saintgobain pam cast iron pipe systems are available in a range of diameters from 50 up to 600, to suit all sites configurations and build consistent pipeworks. Complete the requirements for erosion and sediment control during construction. Well designed bridge deck drainage is an essential aspect of road safety. Design of bridge deck drainage should the design process indicate a drainage system is needed, utilization of the most hydraulically efficient and maintenancefree system is emphasized. Composite design provides an advantage in reducing the necessary section of primary members and also serves to.
Generally, it is more difficult to drain bridge decks than approach roadways for several reasons. Design of bridge deck drainage fhwa us department of. List of equations for hec 21design of bridge deck drainage. A searchable collection of articles, brochures, technical cards, design instructions and contact information of suppliers of deck drainage systems. Chapter 15 structural design requirements for designbuild. Rich, interactive ebooths display products and services of 2. Characterization of stormwater runoff from a bridge deck. Design of bridge deck drainage, hydraulic engineering circular no. On the internet you can find deck design software, which will help you create your own unique project. Concentrations of constituents in flowweighted samples of the north fork. If you want to get the most bang for your buck, consider installing a deck drainage system.
For example, standard fiberglass bridge drain pipes, custom bridge drain scuppers, and engineered bridge drain piping and collection systems. The primary reason for a good bridge deck drainage design is to. When defining the crosssection at a bridge, in hec2, the user is required to input stations that followed along the ground of the lob, then across the bridge deck roadway embankment. Bridge deck design, at present, often includes costly bridge deck drainage provisions. The availability of data may determine the requirement to use different hydrologic and hydraulic analysis methods and software.
Because no two bridges are the same, our bridge drainage. Bridge deck inlets go to chapter 6 the design of the bridge deck inlet is important because it removes water from a bridge deck within the limits of allowable spread. Neenah foundry offers a variety of cast iron drain bridge scuppers. We also offer a wide variety of other services including estimating, cad drawings and custom coloring in addition to prefabricated bridge drainage systems. Allowing for movement whilst keeping the joint dry is of primary importance on any bridge. If the chapter 10 procedures produce a higher headwater, it should be used. Special specification 4158 railroad bridge drain system 1. A combination of innovative design and a composite nonmetallic material gives a onepiece unit that is lighter and stronger than traditional systems. Bridge drains, bridge scuppers, bridge drainage, bridge. The fastflow bridge deck drainage range provides a complete drainage solution for both bridges and standard groundworks. The manual is a compendium of bridge drainage design guidance. Bridge deck waterproofing solutions gcp applied technologies. The mark of truly smart design occurs when the pieces you dont see are as innovative as the beauty you do. Weve got the knowhow to help you find the right answers.
The calculations are based on a m2 area 100m long and 1 outlet utilising a 100mm channel depth. Designed to provide an environmentally friendly alternative to traditional structural drainage techniques, it provides high flow capacity and added protection to waterproofing. Pgsuper is now part of the bridgelink application framework. Soli deck is available in various thickness from 1. South dakota drainage manual bridge hydraulics 142 length.
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