№ lp_2_3_57000
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Character count: 41656
File size: 84 KB
This document is a construction specification detailing the requirements and methods for designing and constructing precast modular block gravity retaining walls.
Year:
2018
Region / City:
Not specified
Topic:
Construction specifications
Document type:
Specification
Organization / Institution:
Not specified
Author:
Not specified
Target audience:
Contractors, engineers
Period of validity:
Not specified
Approval date:
Not specified
Amendment date:
Not specified
Price: 8 / 10 USD
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The product description is provided for reference. Actual content and formatting may differ slightly.
Note:
Author
Date of Publication:
August 2022
Year:
2023
Region / City:
Global
Sector:
Foreign Direct Investment (FDI), Economic Development
Document Type:
Report
Institution:
World Bank Group
Author:
World Bank Group
Target Audience:
Government officials, policymakers, investment promotion agencies
Period of Application:
Ongoing
Approval Date:
N/A
Date of Revisions:
N/A
Note:
Year
Note:
Year
Subject:
Retaining Wall System
Document Type:
Technical Specification
Organization / Institution:
Keystone Hardscapes
Target Audience:
Contractors, Engineers
Section:
32 32 23
Part:
1 – General; Part 2 – Products
Related Section:
Section 31 00 00 – Earthwork
Product Name:
KEYSTONE HARDSCAPES Compac III Medley
Type of Document:
Construction specification
Subject:
Design and construction of segmental concrete retaining wall system
Applicable Standards:
AASHTO M 252; AASHTO M 288; ASTM C140; ASTM C1372; ASTM D442; ASTM D698; ASTM D1556; ASTM D1557; ASTM D2487; ASTM D2922; ASTM D3034; ASTM D4318; ASTM D4475; ASTM D4476; ASTM D4595; ASTM D4873; ASTM D5262; ASTM D5321; ASTM D5818; ASTM D6637; ASTM D6638; ASTM D6706; ASTM D6916; NCMA SRWU-1; NCMA SRWU-2
Materials:
Dry-stacked concrete retaining wall units; structural geogrid; drainage aggregate; reinforced backfill; foundation soil; leveling pad materials; geosynthetic reinforcement
Manufacturer:
Keystone (licensed manufacturer)
Structural Requirements:
Compressive strength ≥ 3000 psi (21 MPa); absorption ≤ 8%; dimensional tolerance ± 1/8 in (3 mm)
Unit Dimensions:
8 in (203 mm) H x 18 in (457 mm) W x 12 in (304 mm) D minimum
Face Finish:
Hard split Medley face with three convex rustic face widths
Color:
Concrete gray unless otherwise specified
Quality Assurance:
Certified retaining wall system components; engineer-stamped design drawings; documented installer experience; professional liability insurance minimum $2,000,000 aggregate
Submittals:
Manufacturer’s certification; construction drawings; design calculations
Inspection:
Owner quality assurance inspection and contractor quality control testing
Delivery and Storage:
Inspection upon delivery; protection from damage; exclusion of damaged materials
Year:
2025
Region / City:
Not specified
Topic:
Construction, Drainage, Retaining Structures
Document Type:
Technical Specification
Organization / Institution:
Not specified
Author:
Not specified
Target Audience:
Contractors, Engineers, Technical Staff
Validity Period:
Not specified
Approval Date:
Not specified
Amendment Date:
Not specified
Context:
Technical specification document outlining requirements for drainage structures, retaining structures, and slope protections under a specific contract.
Note:
Year
Year:
2021
Region / City:
Not specified
Topic:
Semantics, Language Rebuilding
Document Type:
Academic Thesis
Author:
Not specified
Target Audience:
Scholars, Linguists
Period of Validity:
Not specified
Date of Approval:
Not specified
Date of Changes:
Not specified
Note:
Contextual description
Year:
2026
Region / City:
United States
Subject:
Civil Engineering / Retaining Wall Construction
Document Type:
Technical Specification
Organization / Institution:
Keystone Hardscapes
Author:
Not specified
Target Audience:
Contractors and Civil Engineers
Applicable Period:
Project-specific during construction
Related Standards:
AASHTO, ASTM
Materials:
Concrete units, geogrid reinforcement, drainage fill, leveling pad
Structural Requirements:
Compressive strength ≥ 3000 psi, dimensional tolerances ±3 mm
Submittals:
Manufacturer certification, design calculations by Professional Engineer, project references
Quality Assurance:
Contractor quality control, owner inspection optional
Delivery and Storage:
Material inspection and protection on site
Year:
2024
Region / State:
Ohio, USA
Subject:
Mechanically Stabilized Earth Retaining Walls
Document Type:
Technical Specification
Organization / Agency:
Ohio Department of Transportation (ODOT)
Author:
ODOT State Specifications Engineer
Target Audience:
Contractors, engineers, and project designers
Effective Period:
From 04-01-26
Last Updated:
12-30-25
Required Sections:
SP00350, SP00440, SP02320
Concrete Class:
4000 or 4500 structural concrete depending on wall system
Retaining Wall Systems:
Proprietary MSE systems including KeySystem I TM, LANDMARKTM, MESATM
Design Parameters Included:
Foundation soil, retained soil, reinforced soil properties, seismic coefficients, reinforcement lengths
Measurement Units:
Lbs., sq. ft., cu. ft., ft., sq. ft., cu. yd.
Year:
2025
Location:
Schenley Park, Squirrel Hill, Pittsburgh, PA, USA
Type:
Construction Contract
Department:
Department of Mobility and Infrastructure
Prime Contractor:
A. Merante Contracting Inc.
Project Duration:
6 months
Total Cost:
$2,259,191.91
MBE Participation:
$406,655.00 (17.99%)
WBE Participation:
$68,000.00 (3.01%)
Subcontractors:
R&R Trucking LLC, Diversified Commodities DBA DCI, Reed Building Supply LLC, DS Hinkson Lumber and Supplies, L&E Concrete Pumping LLC, Brila Construction Supply LLC, AST Formliners
Scope:
Replacement and rehabilitation of stone masonry retaining wall, soldier pile lagging installation, natural stone facing, stormwater improvements
Approval:
Recommended by Office of Business Diversity
Source Type:
Government construction project record
Note:
Year
Topic:
Membership Development
Document Type:
Marketing Materials
Organization:
BCHW
Target Audience:
Current and prospective BCH members
Year:
2024
Region / City:
Ohio, USA
Subject:
Construction / Civil Engineering
Document Type:
Technical Specification
Organization / Agency:
Ohio Department of Transportation (ODOT)
Author:
ODOT Technical Resource and State Specifications Engineer
Effective Date:
04-01-26
Last Updated:
12-30-25
Referenced Documents:
SP00440, SP02320
Project Components:
Concrete retaining walls, reinforcement, excavation, shoring, backfill
Measurement Units:
sq. ft., cu. yd., foot, lb.
Year:
2017
Region / City:
North Carolina
Theme:
Civil Engineering, Retaining Wall Construction
Document Type:
Construction Guidelines
Organization / Institution:
North Carolina Department of Transportation (NCDOT)
Author:
NCDOT Engineering Department
Target Audience:
Civil Engineers, Construction Contractors
Period of Validity:
Ongoing
Approval Date:
2017-05-16
Date of Changes:
N/A
Year:
2015
Region / City:
Minneapolis, Minnesota
Industry:
HVAC, Ventilation
Document Type:
Technical Specification
Organization:
Twin City Fan & Blower
Author:
Twin City Fan & Blower
Target Audience:
Engineers, Architects, HVAC professionals
Period of Validity:
Not specified
Approval Date:
Not specified
Modification Date:
Not specified
Product Type:
Hooded Modular Gravity Ventilators
Performance:
Up to 109,000 CFM, Static Pressure up to 0.4 inches wg
Warranty Period:
12 months from startup or 18 months from shipment
ISO Certification:
ISO 9001
Application:
Commercial, Industrial
Material:
Galvanized steel, Aluminum
Maximum Dimensions:
72 x 180 inches (198 x 198 mm to 1,829 x 4,572 mm)
Maximum Airflow:
109,000 CFM (185,191 m³/hr)
Static Pressure:
0.4 inches wg (99 Pa)
Manufacturer:
Twin City Fan & Blower, Minneapolis MN
Contact:
(763) 551-7600, [email protected]
Website:
www.tcf.com
Year:
Not specified
Region / City:
Not specified
Theme:
Gravity, Physics, Education
Document Type:
Educational Activity Plan
Organization / Institution:
Not specified
Author:
Not specified
Target Audience:
Children, Students
Period of Action:
Not specified
Approval Date:
Not specified
Date of Changes:
Not specified
Year:
2011
Region / city:
Tallahassee, Florida
Subject:
Aerospace / Robotics / Microgravity
Document Type:
Proposal
Organization / Institution:
Florida Agricultural & Mechanical University, NASA
Author:
Stacy Tinner, Clement Allen
Target Audience:
Researchers, Students, Aerospace Engineers
Period of Effectiveness:
June 16 – June 25, 2011
Approval Date:
Not specified
Date of Modifications:
05/16/11, 05/23/11
Note:
Context Description
Year:
2015
Region / City:
Minneapolis, Minnesota
Topic:
HVAC, Gravity Ventilation
Document Type:
Specification Guide
Organization / Institution:
Twin City Fan & Blower, a division of Twin City Fan Companies, Ltd.
Author:
Twin City Fan & Blower
Target Audience:
Engineers, contractors, and professionals in HVAC system design and installation
Validity Period:
Not specified
Approval Date:
Not specified
Date of Changes:
Not specified
Title:
Phet Simulation: Gravity and Orbits
Language:
English
Type of Document:
Educational worksheet
Subject:
Physics
Topic:
Gravity, Orbits, Kepler’s Laws
Educational Level:
Secondary education
Related Simulation:
PhET “Gravity and Orbits”
Institution Referenced:
University of Colorado Boulder
Format:
Guided activity with questions and tasks
Required Resources:
Computer with internet access