Related by context. Frequent words. (Click for all words.) 65 gusset plates 47 Rosenker 44 trusses 43 steel beams 41 girders 41 #W bridge 40 Interstate #W bridge 39 steel girders 38 ceiling panels 38 NTSB 38 fasteners 38 epoxy 37 welds 37 rivets 36 MnDOT 36 Transportation Safety 36 fireproofing 35 joists 35 solid rocket boosters 35 structurally deficient 35 connector tunnel 35 Metrodome roof 35 foam insulation 35 corrosion 35 gap fillers 34 landing gear 34 containment dome 34 rudder 34 truss 34 flange 34 floor joists 34 lug nuts 34 bungee cords 34 bulkheads 33 superstructure 33 beams 33 bridge 33 abutment 33 rods 33 structural integrity 33 structurally deficient bridges 33 fuselage 33 weld 33 welded 33 scaffold 32 steel reinforcement 32 tines 32 structurally sound 32 pontoons 32 metal shavings 32 girder 32 connectors 32 By TBT staff 32 heat shield 32 bolts 32 Interstate #W 32 roof trusses 32 flanges 31 slats 31 connector 31 containment vessel 31 gap filler 31 crane 31 roadbed 31 pilings 31 Modern Continental 31 bulkhead 31 Big Dig tunnel 31 handrails 30 Bechtel Parsons Brinckerhoff 30 floodwalls 30 Pesaturo 30 insulating foam 30 bridges 30 Dittemore 30 cantilever 30 thermal tiles 30 substructure 30 cranes 30 levees 30 Molnau 30 sheathing 30 abutments 30 concrete slabs 29 URS 29 wooden beams 29 flatbed trailer 29 rocket booster 29 FHWA 29 handrail 29 structurally unsound 29 caulk 29 thermal tile 29 Alaskan Way Viaduct 29 rotary joint 29 guardrails 29 blowout preventer 29 fastener 29 Jim Oberstar 29 Milena Del Valle 29 riser pipe