Related by context. Frequent words. (Click for all words.) 49 connector tunnel 46 ceiling panels 45 gusset plates 45 girders 44 welds 43 Big Dig tunnel 43 Modern Continental 43 shafts 43 trusses 42 gussets 42 epoxy 42 stairwells 41 steel reinforcement 40 Bechtel Parsons Brinckerhoff 40 Big Dig 40 tunnels 40 pinholes 40 ductwork 39 flanges 39 fatigue cracks 39 beams 38 steelwork 38 floor joists 38 tunnel 38 fasteners 38 guideway 38 shaft 38 Gannett Fleming 38 weld 38 roadbed 38 rivets 38 steel girders 38 defects 38 structural defects 38 cracks 38 vapor barrier 38 structural integrity 37 truss 37 steel beams 37 cables 37 grout 37 handrails 37 fireproofing 37 FHWA 37 delamination 37 cantilever 37 pilings 37 subfloor 37 tolerances 37 MassHighway 37 soffits 37 corrosion 37 ledges 37 handrail 37 mounting brackets 37 rods 37 slats 37 geometries 37 Pesaturo 36 manholes 36 bolts 36 scaffolding 36 tunneling 36 accelerator pedals 36 confined spaces 36 mine shafts 36 steel rebar 35 door latches 35 curved surfaces 35 inspections 35 crawl spaces 35 turbine blades 35 abutment 35 guardrails 35 concrete slabs 35 faults 35 ceiling tiles 35 steel truss 35 MnDOT 35 soffit 35 girder 35 grouting 35 visually inspect 35 #W bridge 34 workpiece 34 vias 34 subcontractors 34 air conditioning ducts 34 substructure 34 flaws 34 cantilevers 34 Big Dig highway 34 gratings 34 pipework 34 hairline cracks 34 ductility 34 structurally deficient 34 connectors 34 shims 34 bungee cords 34 duct