Add to ORKGA worker at Grand Coulee Dam attaches a four-yard bucket used to pour concrete to a crane hook.https://dc.ewu.edu/blonk/1474/thumbnail.jp
A row of concrete forms used to construct one section of Grand Coulee Dam. A four-yard bucket used f...
A worker wearing a hard hat holds a hose for pouring concrete just over the framework for a portion ...
A worker wearing a hard hat holds a hose for pouring concrete just over the framework for a portion ...
A worker at Grand Coulee Dam attaches a four-yard bucket used to pour concrete to a crane hook.https...
A four-yard bucket for pouring concrete is attached to the hook of a crane on a trestle over the fou...
A four-yard bucket for pouring concrete is attached to the hook of a crane on a trestle over the fou...
Several workers pull down a bar that releases concrete from a four-yard bucket onto the onto a porti...
Several workers in hard hats pour and smooth concrete from four-yard buckets delivered by cranes at ...
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 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://...
Men position a four-yard bucket over the foundation of Grand Coulee Dam.https://dc.ewu.edu/blonk/147...
Several workers in hard hats pour and smooth concrete from four-yard buckets delivered by cranes at ...
A row of concrete forms used to construct one section of Grand Coulee Dam. A four-yard bucket used f...
A row of concrete forms used to construct one section of Grand Coulee Dam. A four-yard bucket used f...
A worker wearing a hard hat holds a hose for pouring concrete just over the framework for a portion ...
A worker wearing a hard hat holds a hose for pouring concrete just over the framework for a portion ...
A worker at Grand Coulee Dam attaches a four-yard bucket used to pour concrete to a crane hook.https...
A four-yard bucket for pouring concrete is attached to the hook of a crane on a trestle over the fou...
A four-yard bucket for pouring concrete is attached to the hook of a crane on a trestle over the fou...
Several workers pull down a bar that releases concrete from a four-yard bucket onto the onto a porti...
Several workers in hard hats pour and smooth concrete from four-yard buckets delivered by cranes at ...
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 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://...
Men position a four-yard bucket over the foundation of Grand Coulee Dam.https://dc.ewu.edu/blonk/147...
Several workers in hard hats pour and smooth concrete from four-yard buckets delivered by cranes at ...
A row of concrete forms used to construct one section of Grand Coulee Dam. A four-yard bucket used f...
A row of concrete forms used to construct one section of Grand Coulee Dam. A four-yard bucket used f...
A worker wearing a hard hat holds a hose for pouring concrete just over the framework for a portion ...
A worker wearing a hard hat holds a hose for pouring concrete just over the framework for a portion ...