TTG ENGINEERS - 2015 - Laserfiche WebLink

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1. STATEMENT OF QUALIFICATIONS d. Understanding of Need Task #2: Site Visit and Documentation As we have FHWA- certified bridge inspection, we will perform visual inspections and document the existing bridge condition as necessary for FI-IWA- National Bridge Inventory(NBI) system as well as Caltrans and AASHTO- Element Level Inspection system. The method of inspection and certification we have expertise in is primarily for inspections needed in-line with condition assessment and damage investigation of in- service bridges which is significantly different from new bridge construction inspection. In certain cases such as extensive concrete deck cracking or potential delamination, we may choose to perform non-destructive testing using advanced equipment or chain -dragging to confirm extent of deterioration. We will coordinate with the City traffic and maintenance division as well as OCFCD to obtain necessary encroachment permit and access the bridges their approach roadway, channels. Our inspection work will be performed with exercising full safety precautions and no anticipation of impact to traffic. If special inspection is necessary using non -destruction testing equipment, it will be performed during very low traffic volumes and under advanced permit for partial lane closures. We have developed several field inspection forms and templates to be able to document bridge condition and easily itemize and quantify the extent of damage/deteriorations. We will take necessary field measurements, photo and videos if necessary to map/ sketch the bridge with extent of deterioration/damages to be able to quantify the repairs/rehabilitation needs. We use laser devices or other advance measuring equipment for reinforced concrete and steel sections. We will obtain sufficient field inspection data to be able to verify Caltrans report, perform structural and service condition assessments, and quantity estimates needed for BPMP. Task #3: Evaluation of Existing Bridge We will perform condition evaluation of the existing bridge regarding both structural and service/geometric conditions, based on ourfield inspection of noted deficiencies as well as in-depth review of Caltrans reports, field measurements of damaged joints, concrete deck cracking, section losses, corrosions, etc. as well as geometric considerations such as roadway, median and shoulder width, and traffic congestions, traffic accidents and damages to railings, flooding situations. We will a clear understanding of the problems and issues associated with the damages/ deficiencies determination of the causes and establish need to correct it. We will use our own developed Mathcad programs or special spreadsheet program to re-evaluate/confirm Sufficiency Rating (SR) for bridges that have significantly different condition than reported earlier by Caltrans, found to be "SD" or "FO" based on our inspection have SR closer to 50 that may render them eligible for major rehabilitation or replacement, as SR combined with condition flag "SD" or "FO" is a basis for eligibility for HBP funding. Our assessment will determine if maintenance work is eligible for HBP reimbursement under BPMP such as expansion joint seal and assembly replacement, methacrylate deck treatment, concrete overlays, deck AC replacement/new installation, rehab or replace existing bearings, repair, restoration and strengthening DHy of Santa And 10 0CC T TG Bridge Preventive Maintenance Program - RFP #115-047