About the Cimarron Street bridge

* The 48 concrete girders will become the main support for the bridge deck.

* For the east and west spans of the Cimarron bridge, each girder is 85 feet long and weighs 70,402 pounds, or about 35 tons.

* The center span girders are each 109 feet long and weigh 86,587 pounds — or about 43 tons.

* The 300-ton capacity crane installing these girders weighs 158,353 pounds — about 79 tons — and is currently the largest crane in Colorado.

* The same crane will be used to install the girders for the Austin Bluffs interchange at Union Boulevard in mid-March.