| The sunken panels were sometimes also called caissons, or lacunaria, and a coffered ceiling might be referred to as lacunar. |
| It's a combined highway and transit construction project and requires drilling foundation caissons in areas with underground utilities. |
| The caissons were huge hollow reinforced concrete blocks that were floated across the channel and then sunk when in position. |
| The housing consists of prefabricated concrete caissons which are inset in the lagoon floor and contain service tunnels and machinery. |
| These floats transported the great floating concrete caissons which formed the sea walls of the Mulberry Harbours. |
| The caissons, with concrete compressive strengths of 5000 to 6000 psi, were in good condition and are being reused. |
