harrington cortelyou, consulting engineers, kansas city, missouri, springfield, design, construction, services, civil engineering, transportation, highways, movable, railroads, railway, bridges, inspections, underwater, waterway analysis, hydraulics, storm drainage, site development, construction, contractor, developer, john alexander low waddell, john lyle harrington, long span, vertical lift, bascule, swing span, arched, pedestrian, major, river, highway, county, lake, load rating, posting analysis, fracture critical, biennial, douglas m. waltemath, kevin r. eisenbeis, mark s. huck, hydraulic, scour studies, pier location, movable bridges, cofferdam, cofferdam design, arched bridges, pedestrian bridges, major bridges, river bridges, highway bridges, county bridges, lake bridges