Exhibit 1 - Barrier Wall Detail.pdf
PDF 85 KB Posted
- Solicitation number
- RFP 591 260000002459 3
- Issued by
- Michigan
About this file
This is a technical exhibit document from the Michigan Department of Transportation (MDOT) for the Barrier Wall Repair, As-Needed project in the Metro Region. The exhibit provides detailed specifications and construction standards for concrete barrier wall repairs, including both single-face and double-face barrier wall configurations. The document establishes repair limits of up to 18 inches and specifies the placement of reinforcement steel components, including horizontal and vertical dowel bars with precise dimensional requirements. Horizontal dowel bars are to be embedded 9 inches and placed a minimum of 3 inches above the concrete cover, while vertical dowel bars are spaced every 3 feet along the repair section, starting 12 inches from the end of the repair limit. All reinforcement steel shall be Grade 40 epoxy-coated material, with dowel bars adhesive anchored into existing concrete.
The technical specifications detail that proposed barrier wall dimensions, tapers, and configurations must match the existing barrier wall plane, and weakness joints in the existing concrete barrier are to be addressed within the defined repair parameters. The repair work is included as pay items for both "Double Face Barrier Wall, Limited Repair, Inclusive" and "Single Face Barrier Wall, Limited Repair, Inclusive" categories. This as-needed contract framework allows MDOT to address barrier wall repairs across the Metro Region according to these standardized specifications and technical requirements.
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Text version
SHEET
OF
NOT TO SCALE
1 1
MICHIGAN DEPARTMENT OF TRANSPORTATION
CONCRETE BARRIER
BARRIER WALL DETAIL
CONCRETE BARRIER, SINGLE FACE
SAW CUT LIMIT
DOWEL BAR, 18 INCH
(2) HORIZONTAL #4
SAW CUT LIMIT
DOWEL BAR, 18 INCH
(2) HORIZONTAL #4
DOWEL BAR, 18 INCH
VERTICAL #4
DOWEL BAR, 18 INCH
VERTICAL #4
SHOULDER/VG
TOP OF CONCRETE
SHOULDER/VG
TOP OF CONCRETE
R E P
A
IR
L
IM
IT
R E P
A
IR
L
IM
IT
INCLUSIVE."
AND "SINGLE FACE BARRIER WALL, LIMITED REPAIR,
FACE BARRIER WALL, LIMITED REPAIR, INCLUSIVE"
WORK SHALL BE INCLUDED IN PAY ITEMS "DOUBLE
ADHESIVE ANCHORED INTO EXISTING CONCRETE.
ALL DOWEL BARS SHALL BE EMBEDDED 9" AND
FACE BARRIER WALL, LIMITED REPAIR, INCLUSIVE."
WALL, LIMITED REPAIR, INCLUSIVE" AND "SINGLE
INCLUDED IN PAY ITEMS "DOUBLE FACE BARRIER
SAW CUT LIMITS. HORIZONTAL DOWELS ARE
ARE TO BE PLACED MINIMUM OF 3" ABOVE THE
3" CONCRETE COVER. HORIZONTAL DOWEL BARS
HORIZONTAL DOWEL BARS SHALL HAVE MINIMUM OF
BARRIER WALL, LIMITED REPAIR, INCLUSIVE."
LIMITED REPAIR, INCLUSIVE" AND "SINGLE FACE
IN PAY ITEMS "DOUBLE FACE BARRIER WALL,
BARRIER WALL. VERTICAL DOWELS ARE INCLUDED
SHALL BE PLACED EVERY 3'-0" ALONG THE
END OF THE REPAIR SECTION. DOWEL PLACEMENT
VERTICAL DOWEL BARS SHALL START 12" FROM
AND EPOXY COATED.
REINFORCEMENT STEEL SHALL BE GRADE 40 STEEL
REPAIR LIMIT IS UP TO 18 INCHES, AS SHOWN.
WEAKNESS JOINTS IN EXISTING CONCRETE BARRIER.
EXISTING BARRIER WALL. MATCH PLANE OF
DIMENSIONS, TAPERS AND CONFIGURATION OF
THE PROPOSED BARRIER WALL SHALL MATCH
NOTES:
EXHIBIT 1 - Barrier Wall Detail
File details come from the government source that posted it. Updated .