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e -' <( (j) o a. o 0: a. (j) I >- u. o UJ '-' <( a. ~ >- >= UJ I >- Z a z a >= u ii: >- (j) UJ 0: W I >- a >- ei (j) <!.1 >- UJ UJ I (j) (j) I >- z a o UJ z ;:c >- z a u <( >- <( o u. a UJ 0: => (j) g u (j) o 0: a UJ (j) => e SOUTH FLORIDA WATER MANGEMENT DISTRICT GENERAL ENGINEERING SERVICES modifications to the super- and substructures to seismically upgrade the bridge to meet the requirements of the latest AASHTO Bridge Specification. 2. Cross Street Bridge, SomelTille, t\IA - Preparation of plans and specifications to replace the superstructure and rehabilitate the substructure of this lI5-foot- long structure crossing active railroad lines in an urban environment. The project includes preliminary engineering, highway design, bridge type studies and sketch plans, and final design. Massachusetts Highway Department, 1-90/1-93 Project, Section D009C (11/1993 - 10/1996): Task Lead supervising design of 26 bridges incorporated \vithin the section of the Central Artery/Tunnel project at the 1-90/[-93 Interchange, Southbound, at t\[assachusetts .r\\'enue. Bridge superstructure types include steel and concrete boxes, clllTed horizontal 1- beams, precast prestressed concrete butted boxes, and precast prestressed concrete bulb tees. The work also includes the underpinning of t\vo existing bridges and the de\'elopment of slab on pile transition structures to some of the bridgcs. I\ll bridges are designed for HS20 or HS25 loading and seismic forces. Computer programs used include BRASS, BSDI, STARDYNE, and STA,\D III. SupelTised and participated in the design of the substructurc of the Interim Viaduct at ,\lbany Street ([V.\S), a 20-span, approximately l800-foot-long temporary \'iaduct. The IV I\S design was accomplished in a lO-week accelerated design schedule. The substructure satisfies several space constraints, to meet the concerns of the City of Boston Transportation Department and abutters. Special design details were dc\'eloped to mcet minimum sidewalk widths of 8 fcet and the required roadway width for Albany Street traffic. These details included tapered columns and small- diameter steel pipe piles. This section of the project was opened to traffic in August 1997 and will carry traffic until 2002 rather than the initial l8-month plan. Contractor claims amounted to less than 10;;) of the construction budget of S 12 million. Massachusetts Highway Department, Complex Bridge Rating On-Call Services Contract (01/1992 - 10/1992): Lead Bridge Engineer in thc rating of the French King Bridge, which carries Route 2 over the Connecticut Ri\'er bet\veen Gill and ElTing, t\L-\. This is a three-span, continuous spandrel truss bridgc approximately 900 feet long. Responsibilities included dc\'eloping a live-load distribution and membcr propcrty program, as well as the manual and computerized rating of the slab, stringers, floor beams, and truss members of this bridge for standard A..\SHTO and t\Iassachusetts- specific truck loads. The computer analysis programs used include STRUDL, BRI\SS, and Bi\R7. Directed a team that performed ratings of bridges of various structural types and complexities under the ovcrall con tract. Metropolitan District Commission, Longfellow Bridge Restoration (04/1988 - 12/1988): As Project Engineer, directed the multi-company inspection and rating of this l800-foot-Iong, ll-ribbed-arch-span bridge over the Charles River, for which Stone & \,\'ebster completed and filed a report in 1988. SupelTised inspectors performing \'isual, close-range inspection of bridge, supplemented when necessary by NDT. \,\'ork im'olYed the use of a barge with articulating personnel lifts. Dirccted preparation of the condition assessment, bridge rating report, and cost estimates to rehabilitate this his toric landmark. l\ [ore than 10,000 structural steel members were inspected. SHAW ENVIRONMENTAL. INC. MICHAEL J. DAVIDSON 3 06C122006T