Document Details
- Document Number:
- EI 08-020
- Title:
- Section 632- Precast Modular Walls
- Status:
- Inactive
- Issue Date:
- 6/5/2008
- Effective Date:
- 1/8/2009
- Expiration Date:
- 5/4/2011
- Resp Organization:
- Geotechnical Engineering Bureau
- Contact:
- Randall J. Romer
- Phone:
- 518-457-4714
- Email:
- rromer@dot.state.ny.us
- Item Numbers:
- 632.10XX,632.11XX,632.12,Crib wall,Bin wall,T-wall,Evergreen Wall,Stone Strong,Kast Block,Infill,Backfill,Unit,Module,Sta-Wall,632-1R1,632-2R1
- Drawings:
- 632.10XX,632.11XX,632.12,Crib wall,Bin wall,T-wall,Evergreen Wall,Stone Strong,Kast Block,Infill,Backfill,Unit,Module,Sta-Wall,632-1R1,632-2R1
- Keywords:
- 632.10XX,632.11XX,632.12,Crib wall,Bin wall,T-wall,Evergreen Wall,Stone Strong,Kast Block,Infill,Backfill,Unit,Module,Sta-Wall,632-1R1,632-2R1
- Shelf Notes:
- No
- Standard Book:
- No
- Superseded By:
- (10-031) Section 554 - Fill TYPE_ Retaining Walls
- File:
- EI 08-020
- Abstract:
- Standard Specification Section 632 and Standard Sheets M632-1 thru 4 are outdated. The existing Standard Specification Section 632 provides a choice between precast headers & stretchers, precast concrete cribbing fabricated to conform to the shape and size shown on the Standard Sheets (Sta-Wall), or a metal bin-TYPE_ retaining wall. The precast headers & stretchers and the metal bin-TYPE_ retaining walls are no longer specified and only have a rare occasion for use by Maintenance Forces. The fabrication of the precast concrete cribbing wall (Sta-Wall), or a metal bin-TYPE_ retaining wall. The precast headers & stretchers and the metal bin-TYPE_ are no longer specified and only have a reare occasion for use by Maintenance Forces. The fabrication of the precast concrete cribbing wall (Sta-Wall) is waning as Precasters are being licensed by a system designer to produce a certain wall system and each seems to supply a particular territory. Therefore, Contractors have been continually using the option in the Standard Specifications which states "Other TYPE_s of cribbing not shown on the standard sheets may be furnished and placed, if approved by the D.C.E.S.". Although this statement allows a Contractor to choose a wall system, other than one of the Department's standards, there is no assurance at the time of bidding that their selection will be approved by the Department for the proposed application. In addition, the time required to review a new or unfamiliar wall system during the construction phase of a project can result in delays getting the product produced and supplied to the project. The creation of an Approved List of Precast Modular Walls will provide Contractors with a selection of wall systems of which the design methodology has already been evaluated by the Department and will also identify approved precast manufacturers who provide the wall systems.
