Concrete

Towers Ahead Of Their Time

Yesterday’s post about the Parachute Jump got me looking for more oddball towers. Most of the search turned up old stone forts, which are interesting in their own right, but not what I was looking for. Then I found the photo above, a circa 1910 view of a “New concrete observatory tower, Vicksburg, Miss” built …

Towers Ahead Of Their Time Read More »

Transitional Structure

That’s the Taft Bridge, AKA the Connecticut Avenue Bridge in northwest Washington, carrying the avenue over Rock Creek. It’s an impressive structure by any standard, over 1300 feet long and with its deck about 130 feet above the creek at the bottom of a steep valley. It’s a spectacular location, with the gorge and Rock …

Transitional Structure Read More »

Not Just Wood

Engineers, and lots of other people, who have worked on single-family houses have stories about plumbers cutting out significant chunks of floor joists to run drain pipes. The picture above shows conditions uncovered in an apartment house on the Upper West Side. The green is the top of an exterior wall, the rest is the …

Not Just Wood Read More »

An Unexpected “Un-“

This post was triggered by a spot-on question from Julia Manglitz about my comments on the fourth Rocky River Bridge. The main structure of that bridge consists of unreinforced concrete arches, and Julia asked “I’m curious about any thoughts you have on the relative durability of reinforced versus non? It seems as though reinforcement corrosion …

An Unexpected “Un-“ Read More »

Generational Change

That’s the Rocky River Bridge on Detroit Avenue in Lakewood, Ohio. Lakewood is a western suburb of Cleveland and Detroit Avenue was originally the Detroit Road, running west from Cleveland to Michigan. Actually, that’s two of the Rocky River Bridges: the unreinforced-concrete arch bridge in front is the 1910 bridge, the fourth on or near …

Generational Change Read More »

Scroll to Top