Exhibit 1 - Barrier Wall Detail.pdf
PDF 85 KB Posted
- Solicitation number
- RFP 591 260000002459 2
- Issued by
- Michigan
About this file
This is a technical specification exhibit from the Michigan Department of Transportation (MDOT) detailing concrete barrier wall repair standards for the Metro Region as-needed contract. The document provides detailed engineering specifications for limited repair work on existing concrete barrier walls, including dimensional requirements, reinforcement placement, and material standards. The repair work addresses weakness joints and damage in existing barrier walls, with repair limits extending up to 18 inches as specified in the technical drawings. All repair work shall be included within designated pay items for either double-face or single-face barrier wall limited repair work, with repairs to match the plane, dimensions, tapers, and configuration of the existing barrier wall.
The specifications require Grade 40 epoxy-coated reinforcement steel with specific dowel bar placement and embedment requirements. Horizontal dowel bars, measuring 18 inches with #4 designation, shall be placed every 3 feet along the repair section with a minimum of 3 inches above the saw cut limit and minimum 3-inch concrete cover. Vertical dowel bars, also 18 inches with #4 designation, shall start 12 inches from the end of the repair section. All dowel bars shall be embedded 9 inches and adhesive-anchored into existing concrete. The technical specifications establish the standards for materials, placement, and repair methodologies that contractors must follow when executing barrier wall repair work under this MDOT contract.
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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 .