approving an amendment to contract no. 08-04-cmgc-000, authorizing webcor/obayashi joint venture to award a trade subcontract to balfour beatty infrastructure inc. as the responsible bidder submitting the lowest responsive bid in the amount of $187,251,070 for tg03 - buttress, shoring, and excavation, and thereby increasing authorized direct costs under contract no. 08-04- cmgc-000 by $187,251,070 and increasing the authorized construction services fee by $15,354,587.74. >> directors, we have brian who will present the item. we also have cheryl from legal counsel. chairman ford: thank you. >> good morning, directors. principal director, tjpa. this is the biggest contract we are putting out to date. i would like to run through the importance of what we are doing. it is the buttressed shoring excavation contract. the shoring wall will surround the area, will be 110 feet deep. the bottom of the wall will be 15 feet below the bottom of the excavation. the wall will provide a key below the water bearing sands, thus limiting the need for watering during subsequent excavation. by limiting this,