ASPIRE Summer 08 - Aspire - The Concrete Bridge Magazine
ASPIRE Summer 08 - Aspire - The Concrete Bridge Magazine ASPIRE Summer 08 - Aspire - The Concrete Bridge Magazine
An artist’s rendering showsthe bridge from theWest Virginia side.State Partnership CreatesCable-StayedOhio DOT buildsbridge connectingstates, then turnsover operation toWest VirginiaWhen the steel cantilever throughtrusssteel bridge over the Ohio Riverbetween Pomeroy, Ohio, and Mason,W.Va., was judged functionally andstructurally deficient by the Departmentsof Transportation of Ohio (ODOT) andWest Virginia (WVDOT), deciding toreplace it was an easy decision. Buthow best to design and construct it wasfar from an obvious choice, says DaveJeakle, lead engineer from the Tampaoffice of URS Corporation. Because itspanned the Ohio River between thetwo states, both states were involvedin the decisions—and created a uniquepartnership.The Ohio River at the bridge location lieswithin West Virginia’s boundaries. Sincethe bridge’s construction and trafficaffect both states, both the ODOT andWVDOT were involved. But rather thandivide the construction responsibilitybetween the two states, a uniqueprofilePomeroy-Mason Bridge / Pomeroy, Ohio to Mason, W.Va.ENGINEER OF RECORD: URS Corporation, Tampa, Fla.CONSTRUCTION ENGINEERING: Janssen & Spaans Engineering Inc., Indianapolis, Ind.CONSTRUCTION INSPECTION: Michael Baker Jr. Inc., Pittsburgh, Pa.PRIME CONTRACTOR: C.J. Mahan/National Engineering (a joint venture of C.J. Mahan Construction Co.,Grove City, Ohio, and National Engineering & Contracting Co., Westerville, Ohio)34 | ASPIRE, Summer 2008
A major consideration, especially forWest Virginia, was to minimize long-termmaintenance.Bridgeby Wayne A. Endicottarrangement for its construction wasreached.In this arrangement, the bridge is beingbuilt by the ODOT. On completion,ownership and responsibility formaintenance of the bridge will pass tothe WVDOT. Virtually all decisions on thebridge, such as its location and design,were hammered out between the twodepartments. The bridge is expected tobe completed this fall.“We evaluated several systems todetermine the best choice, with plentyof input from both states,” says Jeakle.“A major consideration, especially forWest Virginia, was to minimize longtermmaintenance.”Among the systems discussed werea simple tied arch; a three-span,continuous, parallel-chord steel truss;and a three-span, cast-in-place concretecable-stayed bridge. The cable-stayedoption was chosen, primarily becauseof the design’s aesthetics. “Althoughconstruction cost was definitely afactor in the decision-making process,when we compared all of the variousoptions, none stood out as being morecost efficient than another.” The finaldesign represents a consensus fromboth departments, including a varietyof officials, adds Michael Zwick, a seniorproject manager in URS’s Cincinnatioffice, who shepherded the project.75-Year Service LifeLongevity was another key factor inchoosing the concrete, cable-stayeddesign, says Zwick. “We project aminimum 75-year service life, providedthat certain routine maintenance tasksare performed. In that time, we wouldexpect that the stay cables will needto be replaced once and expansionjoints and bearings will need to bechanged twice. Also, the silica fumeconcrete overlay will need to be redoneapproximately every 20 years.”O ff i c i a l s a t t h e t w o h i g h w a ydepartments asked designers tostudy three different types of cablestayedbridges. The first type featureda single-tower, unsymmetrical designThe new Pomeroy-Mason Bridgebegins to take shape alongsideits predecessor at the right.The new bridge, over the OhioRiver between Pomeroy, Ohioand Mason, W.Va., is just 110 ftupstream from the functionallyobsolete steel structure it replacesto carry Ohio Route 33 over theOhio River. All photos: Bob Henry,Michael Baker Jr. Inc.Cast-in-place segmental cable-stayed bridge / West Virginia Department of Highways, Charleston,W.Va., OwnerSTAY-CABLE SUPPLIER: Dywidag-Systems International, Bolingbrook, Ill.BRIDGE DESCRIPTION: 1163-ft-long, three-span, symmetrical cable-stayed concrete bridge with a 675-ft-long center spanand two 244-ft-long side spansPOST-TENSIONING SUPPLIER: Dywidag-Systems International, Bolingbrook, Ill.BRIDGE CONSTRUCTION COST: $45.8 million (including approach spans)ASPIRE, Summer 2008 | 35
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An artist’s rendering showsthe bridge from theWest Virginia side.State Partnership CreatesCable-StayedOhio DOT buildsbridge connectingstates, then turnsover operation toWest VirginiaWhen the steel cantilever throughtrusssteel bridge over the Ohio Riverbetween Pomeroy, Ohio, and Mason,W.Va., was judged functionally andstructurally deficient by the Departmentsof Transportation of Ohio (ODOT) andWest Virginia (WVDOT), deciding toreplace it was an easy decision. Buthow best to design and construct it wasfar from an obvious choice, says DaveJeakle, lead engineer from the Tampaoffice of URS Corporation. Because itspanned the Ohio River between thetwo states, both states were involvedin the decisions—and created a uniquepartnership.<strong>The</strong> Ohio River at the bridge location lieswithin West Virginia’s boundaries. Sincethe bridge’s construction and trafficaffect both states, both the ODOT andWVDOT were involved. But rather thandivide the construction responsibilitybetween the two states, a uniqueprofilePomeroy-Mason <strong>Bridge</strong> / Pomeroy, Ohio to Mason, W.Va.ENGINEER OF RECORD: URS Corporation, Tampa, Fla.CONSTRUCTION ENGINEERING: Janssen & Spaans Engineering Inc., Indianapolis, Ind.CONSTRUCTION INSPECTION: Michael Baker Jr. Inc., Pittsburgh, Pa.PRIME CONTRACTOR: C.J. Mahan/National Engineering (a joint venture of C.J. Mahan Construction Co.,Grove City, Ohio, and National Engineering & Contracting Co., Westerville, Ohio)34 | <strong>ASPIRE</strong>, <strong>Summer</strong> 20<strong>08</strong>
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