Add to ORKGA row of concrete forms used to construct one section of Grand Coulee Dam. A four-yard bucket used for pouring concrete is visible in the four ground.https://dc.ewu.edu/blonk/1471/thumbnail.jp
Several workers in hard hats pour and smooth concrete from four-yard buckets delivered by cranes at ...
A train delivering four-yard buckets used to pour concrete onto the dam on the bridge in front of th...
The foundation level of concrete had been poured.https://dc.ewu.edu/blonk/1174/thumbnail.jp
A row of concrete forms used to construct one section of Grand Coulee Dam. A four-yard bucket used f...
A concrete bucket is held by a crane above a form where workers wait to smooth the concrete.https://...
A concrete bucket is held by a crane above a form where workers wait to smooth the concrete.https://...
Several workers pull down a bar that releases concrete from a four-yard bucket onto the onto a porti...
A four-yard bucket for pouring concrete is attached to the hook of a crane on a trestle over the fou...
Three workers pull down a bar that releases concrete from a four-yard bucket onto the onto a portion...
Three workers pull down a bar that releases concrete from a four-yard bucket onto the onto a portion...
A four-yard bucket for pouring concrete is attached to the hook of a crane on a trestle over the fou...
Small version of the concrete buckets used during the construction of Grand Coulee Dam. The ones us...
Small version of the concrete buckets used during the construction of Grand Coulee Dam. The ones us...
Men position a four-yard bucket over the foundation of Grand Coulee Dam.https://dc.ewu.edu/blonk/147...
Three men empty a four cubic yard bucket of concrete during the construction of Grand Coulee Dam.htt...
Several workers in hard hats pour and smooth concrete from four-yard buckets delivered by cranes at ...
A train delivering four-yard buckets used to pour concrete onto the dam on the bridge in front of th...
The foundation level of concrete had been poured.https://dc.ewu.edu/blonk/1174/thumbnail.jp
A row of concrete forms used to construct one section of Grand Coulee Dam. A four-yard bucket used f...
A concrete bucket is held by a crane above a form where workers wait to smooth the concrete.https://...
A concrete bucket is held by a crane above a form where workers wait to smooth the concrete.https://...
Several workers pull down a bar that releases concrete from a four-yard bucket onto the onto a porti...
A four-yard bucket for pouring concrete is attached to the hook of a crane on a trestle over the fou...
Three workers pull down a bar that releases concrete from a four-yard bucket onto the onto a portion...
Three workers pull down a bar that releases concrete from a four-yard bucket onto the onto a portion...
A four-yard bucket for pouring concrete is attached to the hook of a crane on a trestle over the fou...
Small version of the concrete buckets used during the construction of Grand Coulee Dam. The ones us...
Small version of the concrete buckets used during the construction of Grand Coulee Dam. The ones us...
Men position a four-yard bucket over the foundation of Grand Coulee Dam.https://dc.ewu.edu/blonk/147...
Three men empty a four cubic yard bucket of concrete during the construction of Grand Coulee Dam.htt...
Several workers in hard hats pour and smooth concrete from four-yard buckets delivered by cranes at ...
A train delivering four-yard buckets used to pour concrete onto the dam on the bridge in front of th...
The foundation level of concrete had been poured.https://dc.ewu.edu/blonk/1174/thumbnail.jp