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 |
W | WEATHERING STEEL | FB | RIGID FRAME BOX | T | TIED |
X | POST-TENSIONED CONCRETE | FC | GIRDER | ||
Y | PRECAST CONCRETE | FG | GIRDER FLOORBEAM SYSTEM | ||
GC | RIGID FRAME COMPOSITE DESIGN | ||||
HT | HIGH TRUSS | ||||
IS | ILLINOIS BULLETIN SLAB | ||||
IT | INVERTED | ||||
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
