Tips & Advice Posts

The Kansas Department of Transportation outlines specifications regarding the requirements for installing permanent cast in place concrete barriers and temporary precast concrete barriers, including materials required, construction requirements, measurement information and payment information.

Kansas Permanent Cast-In-Place Concrete Barrier Specifications

The Kansas Department of Transportation’s specifications are as follows:MaterialsProvide materials that comply with the Contract Documents and DIVISIONS 1000 - 2500. The Engineer should visually inspect the completed installation before making the final acceptance.ConstructionConstruct the cast-in-place concrete safety barrier as shown in the Contract Documents and according to DIVISION 700. Place median filler material as indicated in the Contract Documents.MeasurementsThe Engineer will measure cast-in-place concrete safety barriers by the linear foot along the centerline of the barrier.Kansas Temporary Precast Concrete Barrier SpecificationsThe Kansas Department of Transportation’s specifications are as follows:MaterialsProvide certification (prepared by the Manufacturer or Contractor) that the temporary precast concrete safety barrier complies with the requirements on the Contract Document. The temporary precast concrete safety barrier can be either new or used. The Engineer will accept the temporary precast concrete safety barrier upon acceptance of the provided certification. Acceptance will also be granted after the Engineer does a visual inspection of the installed temporary precast concrete safety barrier.ConstructionInstall and remove the precast concrete safety barrier as required. Do not use temporary precast concrete safety barriers that are damaged or deteriorated.Erect the temporary precast concrete safety barrier as shown in the Contract Documents. The temporary precast concrete safety barrier will remain the property of the Contractor, unless shown otherwise in the Contract Documents.If the Contract Documents require installation only, transport from the designated stockpile, install and return the temporary precast concrete safety barrier to the designated location. Relocate the temporary precast concrete safety barrier as shown in the Contract Documents, or as directed by the Engineer.Remove and replace all sections of temporary precast concrete safety barrier that have been damaged during or after placement. Remove, clean or replace any temporary precast concrete safety barriers (including barrier delineators) that have deteriorated past the point of use.Measurement and PaymentThe Engineer will measure the precast concrete safety barriers by the linear foot (number of sections times the nominal section length). A precast concrete safety barrier transition section (regardless of actual length) will be measured as a nominal section length of temporary precast concrete safety barrier.The quantity of precast concrete safety barriers measured for payment is the maximum quantity required on the project at any one time, plus any replacement sections measured for payment.Each section of the temporary precast concrete safety barrier will be measured for payment if it’s used on the project. Sections of the temporary precast concrete safety barrier that are used to replace sections that have been damaged by traffic while in use will also be measured for payment. These will be paid as “Concrete Safety Barrier” so long as they are used on the project.When provided by the Contractor, sections of temporary precast concrete safety barrier used to replace deteriorated sections or sections damaged through negligence of the Contractor are not measured for payment.When stage construction requires that the precast concrete safety barrier be moved from its initial position to an alternate position, the Engineer will measure the relocated barrier by the linear foot (which again is the number of sections times the nominal section length). The barrier will be measured for payment in each relocated position that the barrier is placed; it will be paid as “Concrete Safety Barrier.”If the stage construction requires that the barrier be removed from the project to a storage location, and returned to the project during a subsequent construction stage, each movement of the barrier will be considered a relocation.Removal of the precast concrete safety barrier, when no longer required on the project, is not measured for separate payment.This blog post is an interpretation of specifications by the Kansas Department of Transportation. Please consult with Kansas DOT's most recent requirements for definitive information.

BUY AND SELL WITH EIFFEL TRADING

Eiffel Trading works with a wide variety of heavy civil and marine contractors to market and sell their surplus and used materials, including all types of barrier wall, such as f-shape barrier wall, low profile barrier wall, single slope barrier wall, and more. Furthermore, our range of used equipment includes used tug boats, used shoring equipment, and much more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.

The Maryland Department of Transportation outlines specifications regarding the proper dimensions for precast F-shape concrete barriers, including general notes, plan details, pin details and reinforcement details.

Maryland F-Shape Barrier General Notes

The Maryland Department of Transportation’s general instructions are as follows:

1. This barrier should be used in combination with traffic barrier W Beam as shown on Standard MD 605.45 or traffic barrier W Beam median barrier as shown on Standard MD 104.01-62.
2. The precast temporary concrete traffic barrier terminal end should be cast using concrete mix No. 6 (4,500 PSI).
3. Reinforcements:

a. 6x6 W2.9 x W2.9 welded wire fabric folded in a U shapeb. Two No. 4 ½” diameter reinforcement bars that are Grade 60 and each 11’-4” long.

1. One connector pin should be furnished with each barrier.
2. The cost of the connector pin should be incidental to the contract price per each for precast temporary 32 inch F-shape concrete traffic barrier terminal ends.

Maryland F-Shape Barrier Plan Details

Precast concrete barriers in Maryland should conform to the following dimensions and include the following features, according to the Maryland Department of Transportation’s specifications.

1. Barriers should be 32” high and 12’-8” long.
2. They should include two lift anchor that can hold a minimum of four tons each.
3. Payment is required for each precast temporary F-shape concrete traffic barrier terminal end.
4. Each barrier should include formed bolt holes that are 1” in diameter.

Maryland F-Shape Barrier End and Reinforcement Details

Precast concrete barriers in Maryland should conform to the following dimensions and include the following features, according to the Maryland Department of Transportation’s end view specifications.End A

• Bottom width: 24”
• Top width: 10”
• Height: 32”
• Break point: 10” from ground line
• Upper slope offset: 2”
• Lower slope offset: 7”

These measurements are typical for the 1’-0” length at end A of the barrier.End B

• Bottom width: 18”
• Top width: 9:
• Height: 32”
• Bolt hole diameter: 1”
• Vertical reveal: 3”

ReinforcementsReinforcements include a 6x6 – W2.9xW29 welded wire fabric running through the barrier, folded in a U shape. The distance between the wire and the top of the barrier should be 2” CL. TYP. and the distance between the wire and the bottom of the barrier should be 3” CL. TYP.Protruding from the left side of the barrier are two connector loops (to receive the connector pins), which are spaced 1’-6” apart. The top connector loop is spaced 8” from the top of the barrier, and the bottom connector loop is spaced 6” from the bottom of the barrier.This blog post is an interpretation of specifications by the Maryland Department of Transportation. Please consult with Maryland DOT's most recent requirements for definitive information.

BUY AND SELL WITH EIFFEL TRADING

Eiffel Trading’s online construction marketplace advertises a wide variety of new and used material and equipment, including various types of barrier wall such as jersey barrier wall, f-shape barrier wall, single slope barrier wall, and more. Furthermore, our equipment inventory ranges from used barges, to used foundation equipment, and everything in between.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.

Steel pipe is indispensable to many marine construction projects. It can be used to help build trestle, combiwalls, and bridges. Steel pipe piling is commonly used to create deep foundations for bridges and other marine structures. Since the elements in marine areas can be pretty harsh on construction materials, the use of durable steel pipe is beneficial because it tends to stay protected from corrosion. In addition to stainless steel pipes, carbon steel pipes, carbon steel pipes with eproxy coating, hot-dip galvanized carbon steel pipes, and duplex stainless steel pipes are all used in marine construction. Below are some details regarding specific applications of steel pipes in marine construction:

Trestle Construction

Trestle serves as a framework to support structures like bridges, often temporarily while they are under construction. Steel pipe piles are often used to create trestle. To construct a trestle, steel pipe piles are driven deep beneath soil into rock surfaces near river, lakes, and oceans. Once driven into the ground, they are customarily strengthened by reinforced concrete to stay in place.

Combiwall Construction

Combiwalls are piling walls constructed using a mixture of steel pipe and sheet pile. They are frequently used to create deep foundations for a variety of marine construction projects. They provide more strength and durability in comparison to traditional sheet pile walls. In combiwalls, steel pipe makes up most of the wall’s structure. Sheet pile is employed to connect pipes and make the walls continuous. Combiwalls are useful in construction projects involving lake filling, port expansion, dams, bridge construction, pier construction, wharf construction, and retaining wall structure construction.

Bridge Construction

Steel pipe piling is often used to build the foundation for bridges. The use of steel pipe creates a strong foundation and ultimately enhances the structural support of a bridge. This is because steel pipe can be driven deep below layers of weaker soil into rock formations.

Dock Construction

As is the case for other applications, steel pipes can be driven deep into the ground and secured to provide adequate support for docks. Steel pipe piling for a dock provides a considerable load capacity in addition to offering corrosion resistance. It is most common for steel pipe piling that has been treated with anti-corrosive coating to be used for the building of docks.The list above of how steel pipe is used in marine construction is not exhaustive. Anytime any sort of platform, pier, or marina is built, steel pipe piling can be used to help build strong foundations. The specific type of steel pipe used depends on the needs of the project. Below is some information about different steel pipe options:

• Carbon Steel Pipe is the most affordable option but the most likely to suffer from corrosion due to saltwater. Carbon steel pipe can be treated with internal galvanizing, epoxy coating, or inner plastic coating to prevent damage from corrosion.
• Stainless Steel Pipe is the standard choice for marine construction. It’s impressively anti-corrosive and is designed to be strong, durable, and long-lasting.
• Hot-Dip Galvanized Carbon Steel Pipe is carbon steel pipe that has been coated with zinc to help prevent corrosion.
• Duplex Stainless Steel Pipe has the added advantage over traditional stainless steel pipe of preventing pitting corrosion from sulfur in sea water.

Steel pipe comes in various sizes and can be cut to size to suit the needs of particular projects. You can buy steel pipe both new and used. Buying new may be the best option if you need the pipe customized. Buying used may be a solid choice if you know a particular size of steel pipe will work for you. Overall, steel pipe is a very versatile option for marine construction projects, particularly those that require a strong foundation.

BUY AND SELL WITH EIFFEL TRADING

Eiffel trading’s online marketplace hosts a wide inventory of used steel pipe. Furthermore, our construction material inventory ranges wider to include used steel sheet pile, used steel crane mats, new steel plates, and much more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.

The type of piles you need for your marine construction project depend on factors like the necessary load-bearing capacity and where the piles will be driven (what type of soil, which type of climate, etc.) For basic marine construction, timber piles and concrete piles can often get the job done just fine and save you a bit of money. For projects that require deep foundations, steel pipe piles and H-piles are often a better solution. Each category of piles comes with its own advantages that make it best-suited for certain applications. Below is some information about the most common pile driving selections:

Timber Piles

Timber piles are the oldest option on the market. They’ve been a tried-and-true choice for pile driving for a couple of thousands of years. They’re used for foundations for a variety of construction projects as well as for building piers, docks, marinas, and shoring. Timber piles are also one of the cheapest types of piles and cost about half of what other popular choices do. Most timber piles are tapered in shape, which increases their friction capabilities and allows them to support pretty heavy loads. They are ideal for use in acid soils and have the added benefit of not being a source of conduction for electricity. They can be easily cut to desired sizes using chainsaws. The downside to utilizing timber piles is that they are the most prone to corrosion, in comparison to other pile materials.

Concrete Piles

Concrete piles are typically prestressed and precast. They’re a hardy and budget-friendly category of pile and are common for a variety of uses in marine construction, particularly because they are quite resistant to corrosion. They are frequently prefabricated based on the particular needs of a project and are driven into the ground using either a diesel or a hydraulic hammer. They come in various shapes, including square, octagonal, and circular.

Steel Pipe Piles

This is one of your best bets for deep foundation applications in marine construction. If you need the pile driven deep below soil into areas of rock, steel pipe piles far outdo options like timber piles or concrete piles, which simply aren’t designed to be driven so deep. Steel pipe piles also have a greater load-bearing capacity as well as better resistance to bending in comparison to concrete and timber. They’re often used in marine construction to help build bridges, buildings, wharfs, quay walls, trestles, combiwalls, and bulkheads. Steel pipe piles have large surface areas, which enables them to provide a large amount of load resistance in the form of friction in addition to enabling them to provide superior point bearing capabilities.There are various types of steel pipe piles: stainless steel, carbon steel, carbon steel with epoxy coating, duplex stainless steel, etc. Stainless steel types are the most protective against corrosion, with duplex stainless steel pipe piles being the most anti-corrosive for use in sea water.

H-Pile and Wide Flange Beams

In addition to steel pipe piles, H-piles and wide flange beams are a solid choice for deep foundation projects. They are dimensionally square steel beams (in the shape of an H) that can be driven below weak soil layers into hard rock or into deeper bearing strata soils. They don’t bend easily at all and have excellent load-bearing capabilities. They’re great for building foundations that support large buildings or heavy bridges. When steel beams are a part of the equation, you can be sure that you have an ultra-strong foundation that will keep your marine structure reinforced.All of the types of piles listed above can be bought new or used. Most, if purchased used, can be cut-to-size to meet the needs of a particular project.

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Eiffel Trading’s online marketplace boast a wide variety of new and used construction materials, including h pile beams are constantly being updated, but if you don’t see what you’re looking for, wide flange beams, and steel pipe. Furthermore, our equipment inventory ranges from foundation equipment, to barges, and everything in between.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.

Steel beams, in the form of wide flange beams and H-pile, play important roles in bridge construction, cofferdam construction, and the construction of other marine structures. Wide flange beams are hot-rolled, structural steel beams individually shaped either like a capital “I” or “H.” They get their shapes from their parallel flanges, which are connected by a central web. They are most often made of carbon structural steel or high-strength, low-alloy structural steel. H-pile is similar but differs from wide flange beams because the thickness of its flanges equals the thickness of its web, which makes it dimensionally square. This allows it to bend less easily and be better suited to deep foundation pile driving. Both wide flange beams and H-pile are used for many of the same or similar purposes to build sturdy foundations as well as columns.

APPLICATIONS

Below are some specific examples of how steel beams are used in marine construction:

• They are used to create falsework for bridges and other large structures. This applies to both wide flange beams and H-pile. Falsework is made up of temporary structures used to support a permanent structure while it’s being built.
• Wide flange beams are employed as superstructure components for bridges that span between 20 and 100 feet. They are aligned parallel to the flow of traffic underneath a bridge to help support the loads the bridge is designed to be able to withstand.
• H-pile is driven into the soil to assist in creating deep foundations for bridges. The perfect square shape of H-pile allows it to penetrate into deep and hard layers of soil and ultimately transfer structural loads to areas of soil that are stronger and more supportive.
• Wide flange beams are used to construct cofferdams, particularly in the construction of bracing systems. They facilitate the transferring of anchor loads to solider piles of wall and enable equal distribution across pile walls. In this type of application, piles rest against the wall and are often welded to the wall’s main steel parts.
• Both types of steel beams can be driven into the ground to help create durable seawalls and longitudinal bulkheads.
• Floating platforms for commercial purposes are supported with the help of steel beams. The construction of such platforms includes a combination of steel beams and a hollow structural section (HSS), which create a truss system that enables loads to be evenly distributed and supported across the platforms.

These are just some of the most common ways wide flange beams and H-pile are used in marine construction. Their possible applications are numerous.

STEEL GRADES

Both wide flange beams and H-pile come in different sizes and grades. As mentioned, wide flange beams also come in different shapes. The right steel beam for a particular marine construction application will depend on factors such as the necessary load requirements and ground conditions. Common grades of wide flange beams are ASTM A992, A572 GR 50, and ASTM A992. ASTM A992 is considered the strongest and is the newest on the market.

PURCHASING OPTIONS

You can buy new, used, or surplus steel beams for marine construction. Used and surplus wide flange beams and H-pile can be the more economical choice, and these options are often in great condition and ready to use. In many cases, stock sizes of steel beams will work for your project. However, steel beam manufacturers can also customize beams to your particular needs.

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Did you know that in addition to our plethora of used wide flange beams and used h-pile beams, you can also purchase brand new w-beams and brand new h pile through Eiffel Trading’s marketplace? In addition, we are also now offering brand new w-beams and brand new steel plates.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.

The Kentucky Department of Highways outlines specifications regarding the proper dimensions for temporary concrete barriers (wall type 9T), including general notes, elevation details and connector details.

Kentucky Temporary Concrete Barrier General Notes

The Kentucky Department of Highway’s general instructions are as follows:

1. Lifting holes should be 2” in diameter; two lifting holes are required for each section; lifting holes should be formed with a 2” PVC pipe or equivalent.
2. Barrier tapers should not be included in the base width.
3. Shop drawings should be approved prior to the barrier’s manufacture.
4. All information provided is based on 150 lbs./cubic feet.
5. All steel reinforcements should be place with a clear distance of 2” (minimum) from the outside face of all walls, except where shown otherwise on the plans.
6. Lifting bars are required to prevent spalling of the concrete around holes.
7. Previous barrier walls manufactured according to standard drawing RBM-115 may still be used. Any new barrier wall type 9T should comply to the standards explained here.
8. A permissible alternative for the pin and loop connector is a J-J hook manufactured by EASI-SET Industries of Midland, VA. See the manufacturer’s shop drawings for details on J-J hook connectors and recommended reinforcements. The barrier wall’s dimensions, shape, length and drain slot dimensions/locations should match this drawing’s current dimensions.

Kentucky Temporary Concrete Barrier Elevation Details

Temporary concrete barriers in Kentucky should conform to the following dimensions and include the following features, according to the KDOH elevation view specifications:General Elevation Details

• Length: 20’-0”
• Height: 26”
• Drain slots: 2” x 1’-8”
• Distance between edge of panel and start of nearest drain slot: 6’-0”
• Distance between top connector and top of panel (left side): 6”
• Distance between top connector and bottom connector (left side): 1’-8”
• Distance between top connector and top of panel (right side): 8”
• Distance between top connector and bottom connector (right side): 1’-4”
• (8) No. 5 bars that are 19’-6” long
• (1) No. 6 bar that is 19’-1” long
• (2) No. 4 “B” bars per side
• (2) No. 6 bars that are 18’-3” long

Right Elevation View

• Bottom width: 2’-3”
• Vertical reveal: 3”
• Top width: 9”
• Bottom slope length: 10”
• Top slope length: 1’-7”
• A ¾” taper is permitted above the vertical reveal

Kentucky Temporary Concrete Barrier Connector Details

Temporary concrete barriers in Kentucky should conform to the following dimensions and include the following features, according to the KDOH connector detail specifications.Top ConnectorTop connectors should be hot dip galvanized after forming. A 6” long galvanized segment is required. The diameter of the connector should be ¾”, and the radius of the closed loop should be a minimum of 1-1/4”. The opening at the end of the connector should be ¾” wide. The connector should be 1’-0” in length.Bottom ConnectorBottom connectors should be hot dip galvanized after forming. A 6” long galvanized segment is required. The diameter of the steel bar should be ¾”, and the radius of the closed loop should be a minimum of 1-1/4”. The opening at the end of the connector should be 9-1/4” wide. The connector should be 1’-8” in length.Connector PinConnector pins should be 2’-1” tall and 1-1/4” in diameter. The bottom threading should be 3” in length (minimum), and the top threading should be 1-3/8” (minimum). A steel washer should be placed at the top and bottom of the connector pin. The top of the pin should be fixed with a 1-1/4” heavy hex nut.Connector Pin Steel WasherSteel washers should be ½” thick, 5” long and 2-1/4” high. The washer hole diameter should be 1-3/8” in diameter and centered on the washer.This blog post is an interpretation of specifications by the Kentucky Department of Transportation. Please consult with Kentucky DOT's most recent requirements for definitive information.

BUY AND SELL WITH EIFFEL TRADING

Eiffel Trading’s online construction marketplace boasts a plethora of new and used precast concrete barrier wall types, including single slope barrier, jersey barrier, k-rail barrier, and more. Additionally, our equipment inventory includes sectional barges, foundation equipment, and much more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.

The State of Georgia Department of Transportation outlines specifications regarding the proper dimensions for precast concrete barriers, including general notes, plan details and pin details.

Georgia Precast Concrete Barrier Notes

The State of Georgia Department of Transportation’s general instructions are as follows:

1. Materials should be Class A concrete and 40 steel.
2. See Georgia Specifications for basis of payment and method number.
3. Reinforcements, having an area at least equal to the rebars shown in the design plan, may be used as an alternative.
4. Barriers should be placed such that openings between individual sections are kept to a minimum.

Georgia Precast Concrete Barrier Plan Details

Precast concrete barriers in Georgia should conform to the following dimensions and include the following features, according to the State of Georgia’s Department of Transportation’s specifications:Plan DetailsBarrier sections should be connected together with the 1-1/4” diameter A-307 double hex connection bolt. The bottom nut and washer should be maintained by the contractor for the duration of the barrier installation.Side View DetailsBarriers should be 2’-8” high and 12’ wide. Each barrier should include two drainage slots that are 8” wide; the center of the left drainage slot should be located 2’-6” from the left side of the panel, and the center of the right drainage slot should be located 2’-6” from the right side of the panel.End Elevation DetailsWhen viewed from the end, the bottom of each panel should measure 2’-6” and the top of each panel should measure 12”. The break point should be located 10” above the ground line. Each panel should have a vertical reveal of 3”, should measure 2’-8” tall and should be symmetrical in nature.

Georgia Precast Concrete Barrier Pin Details

Precast concrete barrier pins in Georgia should conform to the following dimensions and include the following features, according to the State of Georgia’s Department of Transportation’s specifications.Pins should measure 1-1/4” in diameter and 2”-2” in length. Each pin should include a 6” thread and a nut and washer at each end of the pin. An A-307 double hex connection bold should be used, as well as an A-36 washer.An alternate connecting pin with a fused nut on the top threaded portion and a nut and washer (as specified above on the bottom) may also be used.This blog post is an interpretation of specifications by the Georgia Department of Transportation. Please consult with Georgia DOT's most recent requirements for definitive information.

Buy and Sell with Eiffel Trading

Eiffel Trading’s online marketplace advertises a multitude of used and new precast barrier wall options across the US and Canada, including but not limited to single slope barrier, f-shape barrier, k-rail barrier, and much more. Furthermore, our marine equipment inventory ranges from used crew boats, to used winches, and everything in between.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.

The State of Alaska Department of Transportation outlines specifications regarding the proper dimensions for F-shape barrier walls, including construction notes, elevation details, end view details, pin details and connector details.

Alaska F-Shape Concrete Barrier Construction Notes

The State of Alaska Department of Transportation’s general instructions are as follows:

1. This concrete barrier meets MASH TL-3 and may be used for temporary and permanent applications.
2. Use Class B-B concrete (5,000 psi) meeting the requirements of Section 550 of the Standard Specifications.
3. Provide the following unobstructed smooth deflection area behind barrier:

a. 18” when anchored to concreteb. 22” when anchored to asphalt pavementc. 64” when unanchored

1. When anchored, install anchor pins on the side facing traffic. Concrete barrier used as permanent median barrier in medians less than 8’ in width should be anchored to the roadway with anchor pins on both sides of the barrier.

Alaska F-Shape Concrete Barrier Elevation Details

F-shape barriers in Alaska should conform to the following dimensions and include the following features, according to the State of Alaska Department of Transportation’s elevation view specifications:

• Barrier height: 32”
• Loop bar diameter: ¾”
• Pin slot dimensions: 1-7/8” x 4”
• Lifting slots: 3” (typ.)
• Distance between edge of panel and start of lifting slot: 31-1/2” (typ.)
• Distance between bottom of panel and bottom loop bar (left side): 6”
• Distance between bottom loop bar and middle loop bar (left side): 4”
• Distance between middle loop bar and top loop bar (left side): 14”
• Distance between top loop bar and top of panel (left side): 8”
• For the right side of the panel, the loop bar measurements outlined above should be inverted

Alaska F-Shape Concrete Barrier End View Details

F-shape barriers in Alaska should conform to the following dimensions and include the following features, according to the State of Alaska Department of Transportation’s end view specifications:

• Bottom width: 24”
• Top width: 9-1/2”
• Vertical reveal: 3”
• Break point: 10” from ground line; 10” R. (typ.)
• ¾” chamfer
• Panel height: 32”

Alaska F-Shape Concrete Barrier Pin and Connector Details

F-shape barriers in Alaska should conform to the following dimensions and include the following features, according to the State of Alaska Department of Transportation’s specifications:Stirrup BarEach #4 stirrup bar should measure 14-7/8” wide on the bottom, 10-3/4” wide on the top, and 27” long. The bottom bar lap should be 12” wide. The radius of the bottom bar corners should be 1-1/2”.Pin Slot BarEach #4 pin slot bar should measure 6-3/8” wide and 22” long with an inner radius of 1-1/2” (typ.).Loop BarEach loop bar should be hop dip galvanized after fabrication and should be ASTM A123 or AASHTO M 111. Loop bars should have a diameter of ¾”, a length of 33-3/4”, and a width (distance between the two open ends) of 2”.Longitudinal BarLongitudinal bars should measure 12’-0” in length.Pin Loop DetailPin loops should extend from the barrier by 2”. The loop bar should be ¾” in diameter.This blog post is an interpretation of specifications by the Alaska Department of Transportation. Please consult with Alaska DOT's most recent requirements for definitive information.

BUY AND SELL WITH EIFFEL TRADING

Eiffel Trading’s online construction marketplace boasts a wide variety of new and used barrier wall, including but not limited to f-shape barrier wall, jersey barrier wall, and single slope barrier wall. In addition, we offer a wide variety of used equipment ranging from used foundation equipment, to used shoring equipment, and more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.

The Delaware Department of Transportation outlines specifications regarding the proper dimensions for 32” concrete safety barriers (F-shape barriers), including general notes, elevation view details and section view details.

Delaware F-Shape Barrier General Notes

The Delaware Department of Transportation’s general instructions are as follows:

1. Concrete clear covers for reinforcing bars should be 1-1/2” minimum.
2. For slip-form construction, the 4B2 bars should be placed as one continuous piece. The bars should overlap a minimum of 12” in this case.
3. For slip-form construction, a joint should be cut in the barrier every 10’-0” at a maximum depth of ½”.

Delaware F-Shape Barrier Elevation View Details

The Delaware Department of Transportation outlines the proper dimensions for F-shape barriers based on an elevation view. The following pertains to typical cast-in-place or slip-form construction.

1. Barrier length should be 10’-0” minimum to 20’-0” maximum.
2. Bar offsets should conform to the following table:

1. Bar lists are as follows:

*The length of bar 4B2 should be 6” shorter in length than the nominal size of the barrier in which it is used.*See the bar offsets chart above for more details.

Delaware F-Shape Barrier Section View Details

The Delaware Department of Transportation provides section view details outlining the proper dimensions for F-shape barriers:

• Bottom width: 24”
• Top width: 9-5/8”
• Height: 34”
• Break point: 10” R.
• Vertical reveal: 1” R.
• Bottom slope height: 7”
• Top slope height: 24”
• Corners: ¾” chamfer (typ.)

This blog post is an interpretation of specifications by the Delaware Department of Transportation. Please consult with Delaware DOT's most recent requirements for definitive information.

Buy and Sell with Eiffel Trading

Eiffel Trading’s new and used barrier wall listings range from f-shape barrier wall, to jersey barrier wall, to single slope barrier wall, and everything in between. Additionally, our construction material inventory ranges further, and includes new and used HDPE pipe, used crane access trestle, and much more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.

The Iowa Department of Transportation outlines specifications regarding the proper dimensions for precast concrete temporary barriers, including general notes, elevation view details, plan view details and section details.Iowa Precast Concrete Temporary Barrier General Notes

The Iowa Department of Transportation’s general instructions are as follows:

1. For loop bars 6d1, 6d2, and 6d3, use ¾” smooth steel bars with a minimum yield strength of 60 ksi, a tensile strength of not less than 1.25 times the yield strength but a minimum of 80 ksi, a minimum 14% elongation in 8 inches, and passing a 180 degree bend test using a 3-1/2” pin bend diameter.
2. Install loops within 1/8” of the plan dimensions.
3. Use Grade 60, ASTM A615 for all other reinforcements. Do not lift or move using loop bars 6d1, 6d2 or 6d3.
4. Provide for an approved monitoring schedule with a person on call and available 24 hours a day, each day of the week, to realign barrier which has been struck. Initiate service within one hour of notification of need.
5. Unless stated otherwise in the plans, the barrier rail sections should be the property of the Contractor. Remove from the site upon completion of work.
6. Following removal of anchorage, fill all holes with an approved non-shrink grout.
7. Tapered end section is not designed for use within 30 feet of traffic on facilities with speed limits 55 mph or greater, nor within 10 feet of traffic on facilities with speed limits 40 mph to 50 mph.
8. Estimated quantity of concrete for one taper section is 0.6 cubic yards.
9. Include the cost of anchorage, when required in the price bid for "Temporary Barrier Rail, Concrete.”
10. Permanently mark one end of each rail section with manufacturing information. The “marked end” is that end of the barrier having one loop bar at the top and two loop bars at the bottom. Include the following information in the marking:

a. Manufacturer Identificationb. Date Manufactured (Month and Year)c. BA-401 Type A

Iowa Precast Concrete Temporary Barrier Elevation Details

Precast concrete barriers in Iowa should conform to the following dimensions and include the following features, according to the IDOT elevation view specifications:

• Length: 12’-6”
• Height: 32”
• Corners: ¾” chamfer
• On the right side, the distance between top of barrier and first loop bar should be 6”; the distance between top loop bar and middle loop bar should be 3”; the distance between middle loop bar and bottom loop bar should be 17”; the distance between bottom loop bar and bottom of the barrier should be 6”
• On the marked end, the distance between top of barrier and first loop bar should be 7-1/2”; the distance between top loop bar and middle loop bar should be 17”; the distance between middle loop bar and bottom loop bar should be 3”; distance between bottom loop bar and bottom of the barrier should be 4-1/2”
• There should be 3-3/8” plus or minus 1/8” measured from the face of the rail to the outside edge of the loop bar
• Each barrier should include two symmetrical lifting slots that are 3” high

Iowa Precast Concrete Temporary Barrier Plan and Section Details

Blockout SpacingThe IDOT outlines the blockout spacing of bars based on the barrier plan view. From left to right, starting at the left end of the barrier, blockout spacing should go as follows: 24”; 4’-3”; 4’3”; 24”. Furthermore, each barrier length should be 12’6” and the barrier width should be 22-1/2”.Section A-ADetails for section A-A are as follows:

• Height: 32”
• Bottom width: 22-1/2”
• Top width: 8”
• Chamfer: ¾”
• Bottom slope height: 7”
• Top slope height: 22”
• Vertical reveal: 3”

Section B-BDetails for section B-B are as follows:

• 1” clear to 6a2 bar
• 1-3/4” minimum clear between bar and outside of panel
• 1” radius allowed
• Distance between ground line and 2-5b1: 6-1/2”
• Distance between 2-5b1 and 2-4c1: 8”
• Distance between 2-4c1 and 1-5b1: 14-5/8”

• Distance between 1-5b1 and top of panel: 2-7/8”Section C-CDetails for section C-C are as follows:

• 1” clear to 6a2 bar
• 1-3/4” minimum clear between bar and outside of panel
• 1” radius allowed
• Distance between ground line and 2-5b1: 6-1/2”
• Distance between 2-5b1 and 2-4c1: 8”
• Distance between 2-4c1 and 1-5b1: 14-5/8”
• Distance between 1-5b1 and top of panel: 2-7/8”
• Minimum distance required between 1-5b1 and top of panel: 2”

This blog post is an interpretation of specifications by the Iowa Department of Transportation. Please consult with Iowa DOT's most recent requirements for definitive information.

BUY AND SELL WITH EIFFEL TRADING

On Eiffel Trading’s online marketplace, contractors buy and sell a large variety of barrier types, including single slope barrier wall, jersey barrier wall, and much more. Furthermore, our marine equipment inventory boasts used deck boats, used crew boats, and more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.