Tha Psb 17-3 Item 30_1239 Underwater Inspection And Scour Analysis Of Bridge.
Tenders are invited for provide underwater inspection and scour analysis of bridge structures - systemwide. the work will be performed by an experienced team of engineer divers in underwater structural inspections and assessments. the inspection will include, but not limited to: 1. probing and sounding of the exposed surfaces of the substructure elements from waterline to the channel bottom. 2. inspecting the channel bottom material adjacent to the substructure element to determine the bottom material and presence or extent of riprap. 3. sounding should be taken along the fascias of the bridge, upstream and downstream and around the substructure units. 4. each bridge must be evaluated for susceptibility to substructure failure due to streambed scour which results in the assignments of the scour critical evaluation rating. 5. a report of the inspection should be submitted, including sketches indicating areas and depths of deterioration. above and below water photographs should be taken as necessary to document observed conditions. the report should also include an evaluation of the existing conditions.
Bid date & time: 05/04/17 4:30 pm
Notes: goals- 24% d/m/wbe participation goal and 2% vos/sdvosbe.
Major organization : ILLINOIS STATE TOLL HIGHWAY AUTHORITY, PURCHASING
Address : 2700 Ogden Ave
City: Downers Grove,
Attn: Gregory Stukel
Country :United States
Url : http://www.illinoistollway.com
Tender notice number : THA MO-17-1239 PSB 17-3/ 22040478
Notice type : Tender Notice
Open date : 2017-05-04
Tender documents : T38692385.html , G38692385.html
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|Date:||Apr 21, 2017|
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