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The California Department of Transportation (CalTrans) outlines specifications regarding the proper dimensions of temporary railing (type K) barriers, including general notes, typical panel design, opening details and alternative head details.

California Temporary K-Rail General Notes

For end treatment, layout and crash cushions, where needed, see Project Plans or Special Provisions.All 3-1/2” gaps at removable panels should be backed at the base with #8 x 10” dowel or 1” pins at each side of the joint.Where the offset distance from the exposed edge of the deck to the closest edge of the temporary railing is less than 2’-0”, attach each panel to the deck slab with 1” diameter threaded rods (a total of four per panel) inserted through the slotted holes of the panel and bond in drilled holes 6” deep in the deck slabs.

California Temporary K-Rail Design for a Typical Panel

Temporary barriers in California should be K-Rail of 19’-10” precast length (20’-0” laying length) with:

• Four 4” lifting holes, two set at either end of the panel and two set on the outside of the lifting slots
• Two 2’ lifting slots, each set 3’ away from the center of the panel
• Slotted holes for threaded rods
• Each panel should be placed at least 2’ from the edge of the deck or excavated slope.
• Each panel should weigh 3.9 tons.

California K-Rail Section A-A

From an end view, section A-A panels should conform to the following:

• Height: 2”-8”
• Bottom width: 2’-0”
• Top width: 6”
• Slope: R=10”; starts 1” from ground line
• Height of the bottom slope: 10”
• Height of the top slope: 1’-7”
• Break point: 10” from the pavement or ground line
• Vertical reveal: 1”
• Symmetrical in nature
• ¾” top edge chamfer

California K-Rail Section G-G

Section G-G is for concrete pavement and includes the following specifications:

• Alternate detail, 1” pins 2’-0” long driven into existing AC or HMA.
• Include a #8 x 10” dowel, drill and bond in a hole 5” deep within 1’ of removeable panel.
• Traffic should occur on the opposite side of the dowel only.

California K-Rail Typical Opening Detail

When placing K-rails, there should be a minimum of 100’ to the next opening (if required). Paint the ends of removable panels and adjacent panel sections with black paint, with a max gap of 3-1/2” between each of these two panels.

California Alternative Head Detail

Alternative heads should include a bar that is 1-1/4” by 2’-2” long, and a 3” diameter plate that is 3/8” thick.This blog post is an interpretation of specifications by the California Department of Transportation (CalTrans). Please consult with CalTrans' most recent requirements for definitive information.

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The Eiffel Trading marketplace allows contractors to sell their unneeded assets, including various types of used and surplus precast barrier wall including k-rail barrier, low profile barrier, various DOT spec barriers, and much more. Additionally, our construction material inventory also ranges to include used h pile beams, used steel plates, crane mats, 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 Illinois Department of Transportation outlines specifications regarding the proper dimensions of concrete F-shape barrier walls, including the correct connecting loop bar design, s1 and alternate s1 designs, reflector placement, and reinforcement bar placements.

Illinois F-Shape Barrier General Notes

Concrete barriers in Illinois should conform to the F-shape design. Each F-shape barrier should be clearly marked with “ILLINOIS F SHAPE,” the Producer’s mark and the date of manufacture. The markings should be indented or painted on the barrier with waterproof paint or ink.The insert for the ½ (M12) bolt should be capable of 3,000 pounds (13 kN) of pull-out strength.When the barrier separates opposing flows of traffic, markers should be placed on both sides of the barrier panel.

Illinois Temporary Concrete Barrier F-Shape Design

Each F-shape barrier panel should be 12’-6” (3.8 m) long and include:

• One center insert with a galvanized ½” (M12) bolt and washer
• Two lifting slots that are 18” (455 mm) in length, placed 45” (1,145 mm) from each end of the panel
• ¾” (19 mm) diameter connecting loop bars
• One loop bar that is located 8” (200 mm) from the bottom of the panel at both ends
• One loop bar that is located 10” (250 mm) from the top of the panel at both ends
• One loop bar that is located 6” (150 mm) from the top of the panel at both ends
• 1-1/2 (38 mm) diameter handling hole set 13” (330 mm) from the bottom at each end of the panel (optional)
• 1” (25 mm) chamfer on all edges (optional)

Illinois Temporary Concrete Barrier F-Shape Connecting Loop Bar Design

Each connecting loop bar should be ¾” (19 mm) in diameter and 39” (990 mm) long. Additionally, the pivoting end section should be 6” (150 mm) long and rotate at a 45 degree angle.There should be 3-1/2” (88 mm) plus or minus ¼” (6 mm) of space between the two ends of each connecting loop bar. There should be 2-1/2” (63 mm) of space between the face of the panel and the end of the loop bar.

Illinois F-Shape S1 and Alternate S1 Design

F-shape barrier walls may conform to one of two different designs: the s1 bar or the alternate s1 bar.S1 Bar Specifications:Height: 28” (711 mm)Width: 19” (483 mm)Height of lower slope: 9” (229 mm)Height of upper slope: 20-3/4” (527 mm)Length from bottom center to bottom edge: 8-1/2” (216 mm)Alternate S1 Bar Specifications:Height: 28” (711 mm)Width: 19” (483 mm)Height of lower slope: 9” (229 mm)Height of upper slope: 20-3/4” (527 mm)Length from bottom center to bottom edge: 4” (102 mm)

Illinois F-Shape Barrier Wall Reflectors

Each barrier should include four Type C reflectors (TYP.), facing the traffic, located 12” (300 mm) from the top of the panel, and spaced 25’ (17.6 m) apart.

Illinois F-Shape Barrier Reinforcement Bar Specifications

Each barrier should include the following reinforcement bars:

• Horizontal No. 5 (No. 16) h1 bar, located near the top of the panel
• Horizontal No. 4 (No. 13) h2 bar, spaced 12-1/8” (308 mm) below the No. 5 bar
• Horizontal No. 5 (No. 16) h1 bar, spaced 9” (229 mm) below the No. 4 (No. 13) h2 bar
• Horizontal No. 4 (No. 13) s1 bar, set between upper the No. 5 h1 bar and the No. 4 h2 bar.
• Vertical No. 6 (No. 19) s2 bars, 8-3/4” (222 mm) long, set 7-3/4” (197 mm) from each end of the panel
• Vertical No. 6 (No. 19) s2 bars, set between the lifting slots

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

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Eiffel Trading’s online marketplace boasts a wide variety of used and surplus precast barrier wall types, including various DOT specs, F-shape barrier, jersey barrier, single slope barrier, and much more. Furthermore, our construction equipment inventory ranges from used foundation equipment, to used concrete 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.

The Michigan Department of Transportation outlines specifications regarding the proper dimensions for temporary concrete barriers with limited deflection (Type S), including general notes, plan view details, elevation details, and more.

Michigan __<a href="https://www.eiffeltrading.com/marketplace/construction-material/barrier-wall/aee2a316-9700-ca6b-8ed5-8b33d171c4b1?utm_source=Website&utm_medium=blog&utm_campaign=Blog" target="_blank">Temporary Concrete barrier</A>__ General Notes

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

1. Do not lift or move the TCB sections by use of the connecting loop bars D1, D2, D3 or D4. Do not apply excessive force to these connecting loop bars.
2. Concrete clear cover for reinforcing bars must be 1-1/2” (min.) except where otherwise specified.
3. Lifting slots should be constructed as specified to facilitate the drainage of water after installation on the roadway.

Michigan Temporary Concrete Barrier Specifications

Michigan type S temporary barrier should conform to the following specifications, according to the Michigan Department of Transportation:Plan View, Type SThe difference between Type J1/J2 and Type S barriers is that J1 and J2 must be used together as a pair (since they are not symmetrical), but Type S can stand alone (since it is symmetrical).Type S barriers measure 12’-6” long and 1’-10-1/2” wide. They include holes for stakes, anchor bolts or rods (to secure the barrier to the ground). These holes are 2” in diameter (typ.) and are spaced symmetrically along the barrier in pairs (for every hole on the left side, there is an identical hole on the right side).The first pair of holes is set 2’-0” from the left edge of the barrier; the second pair of holes is set 4’-3” away from the first set of holes; the third set of holes is set 4’-3” away from the second set of holes (moving from left to right).Barriers include A1 Bar, A2 Bars (in pairs), and B1 Bars. They include a loop bar on both sides of the barrier, which are symmetrical in nature.Elevation View, Type SType S barriers include 4” diameter lifting holes with an 11 gauge steel round mechanical tubing sleeve. (Lifting holes are optional). Barriers include two lifting slots, which are each 1’-0” long and 3” deep. The lifting slots are spaced 2’-0” apart from each other and are centered on the barrier.Barriers include A1 Bars, A2 Bars, D1 Bars, D2 Bars, D3 Bars and D4 Bars.On the right side of the barrier, the bars protrude from the edge of the barrier and are spaced as follows: D1 bar is spaced 6” from the top of the barrier; D2 bar is spaced 3” below D1 bar; D3 bar is spaced 1’-5” below D2 bar.On the left side of the barrier, the bars protrude from the edge of the barrier and are spaced as follows: D3 bar is spaced 7-1/2” from the top of the barrier; D2 bar is spaced 1’-5” below D3 bar; D1 bar is spaced 3” below D2 bar.End View, Type SBarriers measure 1’-10-1/2” wide at the bottom, 8” wide at the top, and stand 2’-8” tall. They are symmetrical in nature and include a 7” v-notch that is centered on the barrier (optional). Barriers include an optional 4” diameter lifting hole, which is set 10” from the groundline. Barriers include blockouts for stakes, anchor bolts or rods to secure the barrier to the roadway. Loop assemblies (typ.) are centered on the barrier. The bottom slope is 7” tall. The upper slope is 1’-10” tall.This blog post is an interpretation of specifications by the Michigan Department of Transportation (MDOT). Please consult with Michigan DOT's most recent requirements for definitive information.[](https://www.eiffeltrading.com/marketplace/construction-material/barrier-wall/aee2a316-9700-ca6b-8ed5-8b33d171c4b1?utmsource=Website&utmmedium=blog&utm_campaign=Blog%20Redirect "Eiffel Trading Barrier Listings")

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Eiffel Trading’s online marketplace advertises a wide variety of new, surplus, and used barrier wall types, including f-shape barrier, single slope barrier, and much more. Furthermore, our construction equipment inventory ranges from foundation equipment, to concrete equipment (including concrete formwork!) 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 Michigan Department of Transportation outlines specifications regarding the proper dimensions for temporary concrete barriers with limited deflection (type J1 and J2), including general notes, plan view details, elevation details, and more.

Michigan Temporary Concrete Barrier General Notes

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

1. Do not lift or move the TCB sections by use of the connecting loop bars D1, D2, D3 or D4. Do not apply excessive force to these connecting loop bars.
2. Concrete clear cover for reinforcing bars must be 1-1/2” (min.) except where otherwise specified.
3. Lifting slots should be constructed as specified to facilitate the drainage of water after installation on the roadway.

__<a href="https://www.eiffeltrading.com/marketplace/construction-material/barrier-wall/aee2a316-9700-ca6b-8ed5-8b33d171c4b1?utm_source=Website&utm_medium=blog&utm_campaign=Blog" target="_blank">Michigan Temporary Concrete Barrier Specifications</A>__

Michigan temporary precast concrete barriers should conform to the following specifications, according to the Michigan Department of Transportation:Plan View, Type J1Barriers measure 12’-6” long and 1’-10-1/2” wide. They include holes for stakes, anchor bolts or rods (to secure the barrier to the ground). These holes are 2” in diameter (typ.) and are spaced symmetrically along the barrier in pairs (for every hole on the left side, there is an identical hole on the right side).The first pair of holes is set 2’-0” from the left edge of the barrier; the second pair of holes is set 4’-3” away from the first set of holes; the third set of holes is set 4’-3” away from the second set of holes (moving from left to right).Each barrier includes 1” diameter (8-NC) loop ferrules on the right side of the barrier. Barriers include A1 Bar, A2 Bars (in pairs), and B1 Bars.Plan View, Type J2J2 barriers are like J1 barriers, except they are inverted.J2 barriers measure 12’-6” long and 1’-10-1/2” wide. They include holes for stakes, anchor bolts or rods (to secure the barrier to the ground). These holes are 2” in diameter (typ.) and are spaced symmetrically along the barrier in pairs (for every hole on the left side, there is an identical hole on the right side).The first pair of holes is set 2’-0” from the right edge of the barrier; the second pair of holes is set 4’-3” away from the first set of holes; the third set of holes is set 4’-3” away from the second set of holes (moving from right to left).Each barrier includes 1” diameter (8-NC) loop ferrules on the left side of the barrier. Barriers include A1 Bar, A2 Bars (in pairs), and B1 Bars.Elevation View, Type J1 and J2J1 barriers include 4” diameter lifting holes with an 11 gauge steel round mechanical tubing sleeve. (Lifting holes are optional). The barriers also include a 4” diameter x 12’-6” galvanized pipe running through the center of the barrier.Barriers include two lifting slots, which are each 1’-0” long and 3” deep. The lifting slots are spaced 2’-0” apart from each other and are centered on the barrier.On the right side of the barrier, there are loop ferrules (typ.) and a cap plate recess. Barriers include A1 Bars, A2 Bars, and D4 Bars.J2 barriers are identical to J1 barriers, except their measurements are flipped. For example, the loop ferrules are on the left side of the barrier as opposed to the right side.Section C-C, Type J1 and J2Section C-C shows a 4” diameter galvanized pipe running through the center of the barrier. Above and below the pipe are 2” diameter dowel bar holes (typ.). There is a 5/8” recess (typ.), a ¾” weld or bend (typ.) on the barrier edge, and a 1/8” CL. to cap plate within the barrier. Barriers include a 1-1/8” minimum CL. to reinforcement, and a ½” x 36” x 48” steel cap plate (galvanized).This blog post is an interpretation of specifications by the Michigan Department of Transportation (MDOT). Please consult with Michigan DOT's most recent requirements for definitive information.

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The Eiffel Trading marketplace allows contractors to sell their unwanted assets, including various barrier wall types such as used f-shape barrier wall, used jersey barrier wall, used single slope barrier wall, and more. Additionally, our construction equipment inventory ranges from foundation equipment, to concrete formwork, 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.

Preventing shore erosion is an important part of protecting shoreline areas and shoreline properties from costly damage. Luckily, there are several ways to prevent shore erosion and multiple options in terms of building structures to protect against erosion. Below are some viable solutions to help minimize the impact of tides and waves on the stability of soil in shore areas:

1. Natural Resources

Natural vegetation in shore areas can retain moisture and prevent erosion. If possible, do not remove this vegetation or consider planting some new vegetation to aid in erosion prevention. Additionally, reducing interference to the area by avoiding unnecessary paving that may increase runoff can prevent unnecessary erosion.

2. Drainage Systems

Various types of drainage systems can be installed in order to prevent or slow down erosion. Simple solutions like rain gutter outlets and systems that minimize runoff rate toward the shoreline area can have a big impact. A drainpipe that reaches down to the bottom of a shore’s bluff may also be useful. Rocks should be placed beneath the drainpipe to stop erosion where water is drained. A French drain may also be a viable option. A French drain is a slender trench that is filled with sand or gravel to help facilitate efficient and minimally disruptive drainage.

3. Retaining Walls

Retaining walls are simple structures that aid in stabilizing soil and stopping land movement. They are rigid and reinforced in design and can stabilize soil on both sides of themselves. They are usually made of stone, concrete, wood, steel sheet pile, or a mix of materials.

4. Bulkheads

Bulkheads are a lot like retaining walls in many ways, except they are specifically designed to keep water separated from soil and prevent erosion and movement of land as a result of waves and tidal changes. They are often made of reinforced concrete, steel sheet pile, or wood pilings.

5. Revetments

Revetments are built to keep soil steady and in place on a slope. They’re made of concrete, stone, steel sheet piles, etc. They frequently have a layer of extra armor on their exteriors as well as drainage layers to keep water away from the soil beneath them.

6. Seawalls

Seawalls are meant to stabilize soil as well as provide some additional protection from waves and the overtopping of waves. They share quite a bit in common with bulkheads and are commonly made of many of the same materials, including steel and vinyl sheet pile. Some advanced seawalls may have drainage capabilities similar to those used in revetments.

7. Rip-rap

Rip-rap is a collection of large rocks that are strategically placed in order to aid in prevention of erosion on shorelines. Rip-rap also protects against damage to areas from tidal changes and waves. Geotextile fabric may be placed beneath rip-rap to help prevent soil from being lost through cracks in rocks. This is a simple way to boost the efficiency of rip-rap. Sometimes the toe of a bulkhead is lined with rip-rap to further enhance its protective qualities.These are the most common methods of addressing threats to the stability of soil in shore areas. Some of these methods may be used in combination with others to better reinforce a shoreline and prevent erosion.

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Eiffel Trading’s online marketplace boasts a wide selection of construction materials to help fight shore erosion; including but not limited to used steel sheet pile, used steel pipe, used and surplus HDPE pipe, and much more. Furthermore, our marine equipment inventory includes used sectional barges, used work boats, 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 Maine Department of Transportation outlines specifications regarding the proper dimensions for concrete transition barriers, including general notes, plan view details, elevation details, and more.

Maine Permanent Concrete Barrier General Notes

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

1. All work and materials should conform to the provisions of Standard Specifications Section 526 - Concrete Barrier.
2. The Contractor is responsible for ensuring that vertical reinforcing bars TB651 and TB652 are installed prior to placement of the curb or sidewalk concrete. Payment for these bars will be considered incidental to Item No. 526.34, Permanent Concrete Transition Barrier.
3. Reinforcing steel should have a minimum concrete cover of 2 inches.
4. Quantities of reinforcing bars shown are for one transition barrier only.
5. When the Concrete Transition Barrier is cantilevered over an expansion joint, the nose should be blocked out as shown.
6. Payment for guardrail anchorage will be considered incidental to the transition barrier pay item. Class 8.8.3 bolts should be used when corrosion-resistant steel guardrail is specified on the approach roadway.
7. Precast Concrete Transition Curb should meet the requirements of Standard Specifications Section 609 - Curb. The bridge end of the curb should be saw cut in the field to fit flush against the backwall, as dictated by the bridge skew angle and the profile grade. Where curbing is specified on the adjacent highway, the transition should be modified accordingly. Payment for transition curb will be considered incidental to the Concrete Transition Barrier pay item.
8. Concrete Transition Barrier is designed for attachment of Bridge Transition Type "1" unless otherwise indicated on the Design Drawings. Refer to Section 606 for details.
9. After installation of the guardrail is complete, upset the threads on the anchor bolts in three (3) places around each bolt, at the junction of the nut and the exposed thread, with a center punch or similar tool.
10. If there is a conflict between these Standard Details and the Design Drawings, the requirements of the Design Drawings should be followed.

Maine Permanent Concrete Barrier Specifications

Maine barriers should conform to the following specifications, according to the Maine Department of Transportation:Plan ViewConcrete transition barriers can be cut into three sections: the recess, the stem and the nose. The recess measures 1’-0” long; the stem measures 2’-8” long; and the nose measures 2’-8” long. The recess measures 1’-2” wide; the stem measures 1’-7” wide; and the nose measures 1’-7” wide.Each barrier includes two guardrail anchor bolts, which are found on the right end of the barrier (according to the plan view). There is a distance of 8” between the two guardrail anchor bolts, and a distance of 1’-8” between the right-most anchor bolt and the back (end) of the barrier.Elevation ViewThe height of the barrier is dependent on the type of traffic being guarded and whether the barrier will be set on a curb or on a sidewalk:

• 2 – Bar Traffic = 2’-1-1/2” tall
• 3 – Bar Bicycle = 2’-9-1/2” tall
• 4 – Bar Bicycle = 3’-9-1/2” tall
• 4 – Bar Pedestrian = 3’-6-1/2” tall

Barriers height measures 1’-11’ on curbs and 2’-8” on sidewalks.When the Concrete Transition Barrier is cantilevered over an expansion joint, the nose should be blocked out.Guardrail Anchorage SectionEach anchorage section is bound by a ¼” guardrail anchor plate and includes 4” galvanized (min.) Type I bolts. There are 5 bolts total. The bolts are 7/8” diameter x 8” A 325 Bolts. There is 1-1/2” between the bottom of the nut and the top of the projected bolt.Guardrail Anchor PlateThe guardrail anchor plate has seven total holes stamped through the plate. On the long end of the plate, there are three 15/16” diameter holes spaced 7-5/8” apart. On the short end of the plate, there are two 15/16” diameter holes spaced 7-5/8” apart. In the center of the plate, there are two 4” diameter holes spaced 7-5/8” apart. All spacing is when measured from the center of the hole.The long end of the plate measures 1’-6-1/2” long and the sort end of the plate measures 10-5/8” long. The guardrail anchor plate measures 11-1/4” wide.This blog post is an interpretation of specifications by the Maine Department of Transportation. Please consult with Maine DOT's most recent requirements for definitive information.

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Eiffel Trading’s heavy civil material inventory ranges from new and used precast barrier wall, to used HDPE pipe, to wide flange beams, and everything in between. Furthermore, our construction listings includefoundation equipment, concrete formwork, 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.

In marine construction and other areas of construction, retaining walls and bulkheads are built for similar purposes, to protect properties and areas of land from damage due to erosion and land movement. All bulkheads are technically retaining walls, but all retaining walls aren’t necessarily bulkheads. Bulkheads feature soil on one side and water on the other, while retaining walls don’t necessarily retain or come close to water. Both retaining walls and bulkheads are often built of similar materials, such as steel sheet pile, vinyl sheet pile, wood pilings, composite pilings, reinforced concrete, or some combination of these materials. Here are some specifics about both retaining walls and bulkheads that help differentiate them from each other, beyond what we’ve already mentioned:

Retaining Walls

A retaining wall is an inflexible and highly durable wall structure primarily used to laterally bolster soil mass in order to retain the soil to desired degrees on both sides of the wall. There are several types of retaining walls: cantilevered, gravity, diaphragm, sheet pile, anchored, and bored pile. Cantilevered walls are made of steel-reinforced concrete. Gravity walls are made of concrete or stone. They use gravity to their advantage to increase their strength. Diaphragm walls aka slurry walls are most often constructed using reinforced concrete. Sheet pile retaining walls are made of up steel or sometimes vinyl sheet piles for both temporary and permanent structures. Anchored walls use rock, concrete, or sheet piles and are reinforced with cables for extra strength. Finally, bored pile retaining walls are built using bored piles. After the bored piles are installed, it’s common for excess soil in the surrounding area to be removed.

Bulkheads

As mentioned, the biggest difference between a retaining wall and a bulkhead is that each side of a retaining while is surrounded by soil while one side of a bulkhead is usually surrounded by soil and the other side retains water. Bulkheads are commonly built on shorelines and help prevent coastal erosion of shorelines and beach areas. Bulkheads are stationed parallel to and close to high water marks in land areas to protect them from ocean currents and waves and ultimately prevent land movement. As we previously noted, steel sheet piles, vinyl sheet piles, timber, and concrete piling, among other materials, may all be used to create bulkheads. Bulkheads are often not a permanent solution in areas that are subject to severe erosion over time. In such areas, different types of walls and structures should be explored as permanent solutions.

OVERALL

Retaining walls and bulkheads can both be quite useful to aid in the prevention of erosion, land movement, and damage to sloped areas of land from changes in ground conditions. Bulkheads are particularly useful in coastal areas, while retaining walls may be used in many other areas. Ultimately, whether a bulkhead or a specific type of retaining wall (of the types of mentioned) is best depends on the unique needs of the area and its distinctive concerns, taking factors like geological conditions, coastal patterns, soil types, and upland drainage into consideration.

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Used sheet pile, used steel pipe, used combi wall… when it comes to used and surplus construction material, Eiffel Trading’s online marketplace has it all! Furthermore, our inventory of marine equipment ranges from winches, to sectional 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.

Keeping a seawall in good condition helps prevent erosion and damage from waves and storm surge that may be costly to properties. If a seawall collapses or fails, replacing it can be quite costly, and damage to property or land due to insufficient protection from the seawall can be even costlier. That’s why regular inspections, repairs, and replacement when necessary is essential. Below are some indicators that your seawall may be damaged and in need of attention.

Damaged Seawall Warning Signs

Look for the following indicators that your seawall may be damaged and be in need of repair or replacement:

• Rust stains
• Cracks in seawall’s cap or any areas broken off of its cap
• Gaps between seawall slabs that seem to be growing
• Soil settling in areas surrounding the seawall or any holes in ground areas surrounding the seawall
• Damaged slabs, which may be bowing, cracked, improperly aligned, or leaning
• Damaged sheet pile

Rust StainsRust stains on any areas of steel or on steel sheet pile can be a red flag that indicates corrosion. Rust stains are a particularly bad sign if they are leaching through cracks in the surface of the seawall. Minor rust stains on areas like metal railing may not be too much cause for concern but shouldn’t be completely overlooked either. Make sure they’re adequately assessed as well.Damage to the Seawall’s CapA seawall’s cap is often made of reinforced concrete and steel and is situated on top of the seawall. When checking for damage to the cap, make sure you look at the sides of the cap in addition to its top. Inspecting the cap’s side that faces the water is especially important. If a seawall’s cap has cracks or broken areas, this may be an indication of exposed rebar, which can wreak havoc on the structural integrity of the seawall. Repairing a damaged cap before rebar becomes significantly damaged can help you extend the life of the seawall significantly and ultimately save money in repair costs down the line.Growing Gaps Where Seawall Slabs ConnectIf gaps are widening between a seawall’s slabs, it often means that joints are either broken or damaged. This can be caused by a number of factors, including issues with anchors. Joints and anchors should be promptly repaired to address this issue. Otherwise, gaps may lead to substantial harm to the seawall’s slabs or lead to damage to its cap.Settling SoilSettling soil and/or pitted soil in the ground surrounding a seawall often indicate erosion. Erosion ultimately leads to pressure imbalances, which can damage slabs and cause the seawall to collapse if necessary steps aren’t taken to address the problem and correct the erosion.Damaged SlabsA seawall’s slabs have to bear the brunt of quite a bit of pressure. Any imbalance of pressure can ultimately cause slabs to lean, bow, crack, or lose alignment. Slabs must be repaired or replaced at the first sign of damage in order to prevent serious compromises to a seawall’s structure. Slabs should be regularly inspected, repaired, and replaced as necessary.Damaged Sheet PileIf steel sheet pile is used in the construction of a seawall in a way that leaves it exposed to the elements, you should regularly inspect the sheet pile for signs of corrosion, rust, cracks, bowing, or loss of alignment. Individual sheet piles or sections of sheet pile walls are pretty easy to swap out once they become damaged, so just make sure you keep an eye on them to prevent bigger issues that may compromise the structure of the whole seawall.Taking proper care of a seawall with scheduled inspections, maintenance, and repair when needed can do a lot of good in terms of extending the life of a seawall and ensuring it does its job and provides adequate protection.

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Eiffel Trading’s online construction marketplace inventory is constantly growing, and includes a wide variety of used sheet pile options, crane access trestle listings, in addition to other used steel inventory. Furthermore, our marine equipment inventory ranges from used sectional barges, to dredges, to work boats, 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 Maine Department of Transportation outlines specifications regarding the proper dimensions for permanent concrete barriers Type IIIA, including general notes, plan view details, elevation details, and more.

Maine Permanent Concrete Barrier General Notes

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

1. All work and materials should conform to the provisions of Standard Specifications Section 526 - Concrete Barrier.
2. Reinforcing bar designations Type "S" and "CB" refer to type bending diagrams as shown on the main Reinforcing Steel Schedule. These bars are detailed on the Design Drawings and are included for payment in the Reinforcing Steel pay items.
3. Reinforcing steel should have a minimum concrete cover of 1-½”, except that stirrups Type "S" and "CB" should have a minimum concrete cover of 2”.
4. The first digit following the letters of the mark indicates the size of the reinforcing bar. (FA600 = #6 bar.) All dimensions are out-to-out of bar.
5. Minimum lap splice lengths are 1’-9" for FA500 and 2’-7" for FB700.
6. The quantities of reinforcing bars shown are for one barrier end only.
7. Bolt holes in concrete should be formed by a method approved by the Resident.
8. Payment for anchor bolts and bearing plates will be considered incidental to the concrete barrier pay item. Class 8.8.3 bolts should be used when corrosion-resistant steel guardrail is specified on the approach roadway.
9. Permanent Concrete Barrier is designed for attachment of Bridge Transition Type "1" unless otherwise indicated on the Design Drawings. Refer to Section 606 for details.
10. After installation of the guardrail is complete, upset the threads on the anchor bolts in three places around each bolt, at the junction of the nut and the exposed thread, with a center punch or similar tool.
11. If there is a conflict between these Standard Details and the Design Drawings, the requirements of the Design Drawings should be followed.

Maine Permanent Concrete Barrier Specifications

Maine barriers should conform to the following specifications, according to the Maine Department of Transportation:Plan View (Type IIIA)Barriers include an 8” bearing plate on the side of the barrier, set 1’-8” away from the end of the barrier. The bearing plates include a 1” diameter hole for a 7/8” diameter x 10” H.S. bolt with a washer and nut. Barriers measure 11” wide (on the flat side), plus 5” wide (on the inclined side) for a total of 16” in width. The inclined side of the barrier measures 2’-0” long before flattening out again.Elevation View (Type IIIA)Barriers include a 1” chamfer. Starting from right to left, there are:

• 12 ~ FA501 (5 equal spaces E.F.)
• 1 ea. FA550, FA551 (N.F.)
• 2 ~ FA501 (F.F.)
• 10 ~ FA600 (5 @ 6” E.F.)
• 5 ~ Type “s” #6 sp. @ 6”
• 4 ~ FA650 @ 6”
• 4 ~ Type “CB” #6 @ 6”
• FA650 @ 12”
• Type “CB” #6 @ 12”
• 10 ~ FA500 (5 F.E.)

Typical Barrier Section (Type IIIA)Barriers measure 8-1/2” wide at their shortest point and 1’-4” wide at their widest point. They include FA650, FA500 and #6 type “CB” bars. They are 2’-8” tall. The height of the bottom slope is 7” and the height of the upper slope is 1’-10”.Table of Dimensions – Type IIIAThis blog post is an interpretation of specifications by the Maine Department of Transportation. Please consult with Maine DOT's most recent requirements for definitive information.

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Eiffel Trading’s online marketplace boasts a wide variety of temporary precast barrier wall options, including jersey barrier, k-rail barrier, single slope barrier, and many others. Additionally, our heavy civil material inventory ranges to include HDPE pipe, steel pipe pile, 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 Maine Department of Transportation outlines specifications regarding the proper dimensions for permanent concrete barriers Type IIIB, including general notes, plan view details, elevation details, and more.

Maine Permanent Concrete Barrier General Notes

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

1. All work and materials should conform to the provisions of Standard Specifications Section 526 - Concrete Barrier.
2. Reinforcing bar designations Type "S" and "CB" refer to type bending diagrams as shown on the main Reinforcing Steel Schedule. These bars are detailed on the Design Drawings and are included for payment in the Reinforcing Steel pay items.
3. Reinforcing steel should have a minimum concrete cover of 1-½”, except that stirrups Type "S" and "CB" should have a minimum concrete cover of 2”.
4. The first digit following the letters of the mark indicates the size of the reinforcing bar. (FA600 = #6 bar.) All dimensions are out-to-out of bar.
5. Minimum lap splice lengths are 1’-9" for FA500 and 2’-7" for FB700.
6. The quantities of reinforcing bars shown are for one barrier end only.
7. Bolt holes in concrete should be formed by a method approved by the Resident.
8. Payment for anchor bolts and bearing plates will be considered incidental to the concrete barrier pay item. Class 8.8.3 bolts should be used when corrosion-resistant steel guardrail is specified on the approach roadway.
9. Permanent Concrete Barrier is designed for attachment of Bridge Transition Type "1" unless otherwise indicated on the Design Drawings. Refer to Section 606 for details.
10. After installation of the guardrail is complete, upset the threads on the anchor bolts in three places around each bolt, at the junction of the nut and the exposed thread, with a center punch or similar tool.
11. If there is a conflict between these Standard Details and the Design Drawings, the requirements of the Design Drawings should be followed.

Maine Permanent Concrete Barrier Specifications

Maine barriers should conform to the following specifications, according to the Maine Department of Transportation:Plan View (Type IIIB)Barriers include an 8” bearing plate on the side of the barrier, set 1’-8” away from the end of the barrier. The bearing plates include 1” diameter holes for 7/8” diameter x 11” H.S. bolts with a washer and nut. Barriers measure 1’-1” wide (flat), plus 5” wide (inclined) for a total of 18” in width. The inclined side of the barrier measures 2’-0” long before flattening out again.Elevation View (Type IIIB)Barriers include a 1” chamfer. Starting from right to left, there are:

• 12 ~ FB701 (5 equal spaces E.F.)
• 1 ea. ~ FB751, FB701 (F.F.)
• 2 ~ FB601 (bend in field)
• 10 ~ FB600 (5 @ 6” E.F.)
• 5 ~ Type “S” #6 sp. @ 6”
• 4 ~ FB650 @ 6”
• 4 ~ Type “CB” #6 @ 6”
• FB650 @ 12”
• Type “CB” #6 @ 12”
• 10 ~ FB700 (5 F.E.)

Typical Barrier Section (Type IIIB)Barriers measure 9-1/2” wide at their shortest point and 1’-6” wide at their widest point. They include FB700, FB650 and #6 type “CB” bars. They are 3’-6” tall. The height of the bottom slope is 7” and the height of the upper slope is 2’-8”.Table of Dimensions – Type IIIBThis blog post is an interpretation of specifications by the Maine Department of Transportation. Please consult with Maine DOT's most recent requirements for definitive information.

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Eiffel Trading’s online marketplace boasts a wide variety of road construction materials and equipment, including used precast barrier wall, used crane mats, maintenance of traffic (MOT) equipment, and much more. Furthermore, our selection extends to marine equipment, HDPE pipe, crane 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.