Dive summary:

• Danya Cebus Ltd., the Tel Aviv construction firm that got a contract to do improvements to 16 kilometers of Israel's Highway 1 also got a condition that added more than a little complexity to the project – avoid impacting an archeological site that sitys beneath where two 800-meter-long bridge spans need to go to add lanes.
• The road is the route between Tel Aviv and Jerusalem, so the government wants the work done as quickly as possible to add lanes, smooth hills and generally ease congestion.
• The answer devised by Finley Engineering Group Inc.of Tallahassee, Fla., the construction engineer for the project is to surround the site with sand bags and cover it with high-strength fiber sheeting and to use a gantry crane to place the concrete bridge.

From the article:

Before actual foundation work got under way last month, crews placed large sand-filled bags topped by a layer of high strength fiber sheeting to protect the archeological site, which had served since ancient times as a military camp for armies trying to conquer Jerusalem. ...