1985/05/01 Council Minutes - Laserfiche WebLink

• 172 Hay 1,1 Ron Cameron, Traffic Engineer, reveiwed the history of the bridge —11 problems in the city beginning v August,of 1983 w the Lombard ridgewas closed die t ural failure of the deck cane of employing a10 ant structural clthe bridge, boron ewas o iced for[ other bridges in Lombard a vrecomme dation of the cons meEngineers, H Ave,bridge was closed to traffic. After Sa Sargentctbyd he Hewitt consultant, the bridge was opened with a 5 t delimit a of traffic. The final f Sargent E replacement of! Hewitt, Oake• s[a Lombard bridges [ current load standards. Repair would leave Lombard with a!Ort Oakes x a 15 ton limit iHewitt with a 8.6 ton limit.o He ted out r that! Alversrn • dge,Broadway bridge and 21st Street bridge are 20 too load limit bridges.r the bridge history presented by Kr.Cameron be marked nExhibit No.2. • Cameron [hen reviewed t the financial summary of the bridges. Re said e he f the Oakes bridge h approved for design with federal funds approvedin the amount of$64,000 and$1616,00000 in gas tax with the total cost of the bridge being $500,000. The LOmbaid bridge is approved for design andconstruction with $240,000 in federal funds, $42,000 1/20 , 2!gas ax funds and$18,000 UAB funds.Total estimated cost o he bridge is $300,000. he Hewitt Ave. bridge is approved for design. Federal funds would be in the amount of$80,0 c 00 d 1/2R gas tax funds at$20,000 with a total estimated $1,000,000 for the bridge. He reminded the council if federal funds are accepted,the city will have to take ownership of he bridges. ( Mr.Jones asked that this be marked exhibit i3. Bryon Perkins, representing Sergent Engineers, explained how the iii load limits had been established in 1944 for the state. He said for example a H s 20(or 20 ton) i combination of the front axle and x the driver a tractor r which a 14 ft.apart. Behind that would be the rearaxles to the!railer and that varies anywhere from �!^ spacing from 14 t0 30 ft.and that is also 20 tons. when a bridge is analyzed they try! figurewhere these axlesfall and how it affectsthe the s hof construction [traffic goining across e. Also taken nolo account is the the bridge. He then showed slides of the Lombard bridge taken in march of 1984, the Oakes bridge taken April 29,1985 and the Hewitt Ave.Bridge. !. Councilman Pope asked if the Hewitt Ave.bridge is safe for present day standards and X s Perkins replied part o£ he construction c ion mould be satisfactory, not all, but with the condition of the bridge i has been downgraded and this has been noted in the reports.ep ts. .eBigebrtd hethgerrge spoteeTbartdB[a^de tM1w Hw1bte Ave. Bridge report would be Exhibit 16. I`. Eubanks, General Counsel for Burlington Northern Railway, Said hev did not dispute the'c made by MCameron and what Mr. Perkins had said with respect t the desirabilityo replacing the bridges. He said they were 84 years old and bad outlived their