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Superstructure Codes

First Character Second and Third Characters Fourth Character
Material Type Feature
Character Actual Character Actual Character Actual
A ALUMINUM AR ARCH 0 NOT APPLICABLE
C CORRUGATED METAL BC BOX GIRDER COMPOSITE DESIGN C CONTINUOUS
F FIBER REINFORCED POLYMER        
I WROUGHT IRON BG BOX GIRDER D DROP-PANEL
L LIGHTWEIGHT CONCRETE BM BEAM F FIXED
M STONE MASONARY CB BOX CULVERT H CONTINUOUS & PARABOLIC HAUNCH
P PRESTRESSED CONCRETE CS SLAB L LINEAR HAUNCH
R REINFORCED CONCRETE DG DECK T-GIRDER OR ORTHOTROPIC P SPANS WITH STEEL BEAMS ENCASED IN CONCRETE
S STEEL DT DECK TRUSS R CIRCULAR HAUNCH
T TIMBER FA FILLED SPANDREL ARCH S

SIMPLE
UNRESTRAINING SUPPORT AT EACH SPAN END

W WEATHERING STEEL FB RIGID FRAME BOX T TIED
X POST-TENSIONED CONCRETE FC GIRDER
FLOORBEAM COMPOSITE DESIGN
   
Y PRECAST CONCRETE FG GIRDER FLOORBEAM SYSTEM    
    GC RIGID FRAME COMPOSITE DESIGN    
    HT HIGH TRUSS    
    IS ILLINOIS BULLETIN SLAB    
    IT INVERTED
T-GIRDER
   
    LP LONG SPAN PIPE    
    LT LOW TRUSS    
    LW LOW-WATER CROSSING    
    MC BEAM COMPOSITE DESIGN    
    MP PIPE    
    OA OPEN SPANDREL ARCH    
    RC RIVETED PLATE GIRDER COMPOSITE DESIGN    
    RF RIGID FRAME    
    RG RIVETED PLATE GIRDER    
           
    SC GIRDER STRINGER FLOORBEAM COMPOSITE    
    SG GIRDER STRINGER FLOORBEAM SYSTEM    
    SP STRUCTURAL PLATE PIPE    
    SS STRUCTURAL SLAB    
    TA THROUGH ARCH    
    TG THROUGH GIRDER    
    TU TUNNEL    
    VS VOIDED SLAB    
    WC WELDED PLATE GIRDER COMPOSITE DESIGN    
    WG WELDED PLATE GIRDER    

 

Example: RCSH - Reinforced Concrete Haunched Slab
   R = Reinforced Concrete
   CS = Slab
   H = Haunched

Adobe PDF file for common Superstructure Codes.

Last updated : August 22, 2013