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 | | |