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Printed on:Tuesday 04/15/2025 03:38 PM 29C0312/AAAS/148035Pageof3 <br />Department of Transportation - Division of Maintenance Structure Maintenance & Investigations <br />6 <br /> 3.0Max. Water DepthN/AContractor <br />A - WadeDive Mode <br />UNDERWATER INVESTIGATION DETAILS <br />ft <br />STEEL INVESTIGATION DETAILS <br />SCOPE AND ACCESS <br />All elements listed in the "Underwater Elements Investigated" section of the report were inspected from the waterline down to the <br />mudline. The inspection of the remainder of the element and all other elements is the responsibility of the routine inspection. <br />This structure was inspected using wade and probe equipment and techniques. Inspecting operations were staged from shore and <br />inspector access was from the southwest bank. <br />This underwater inspection follows the procedures of Section 5.4 of the SM&I Procedures Manual. <br />SUBSTRUCTURE <br />All submerged elements were covered with a thin layer of growth which could easily be removed by the diver's gloved hands. This <br />condition allowed for a 100% Level I inspection and a minimum of 10% Level II inspection of the submerged portions of the elements. <br />For reference purposes, the height from waterline to the top of rail was 13.0 feet at Bent 3, Column 4, at 1108 hours on the day of this <br />inspection. <br />The following depths and/or miscellaneous conditions were noted: <br />Bent 2: <br />Column 1 Mudline - 2.5 feet <br />Column 4 Mudline - 2.0 feet <br />Bent 3: <br />Column 1 Mudline - 3.0 feet <br />Column 4 Mudline - 2.5 feet <br />Bent 4: <br />Column 1 Mudline - 2.5 feet <br />Column 4 Mudline - 2.5 feet <br />Bent 5: <br />Column 1 Mudline - 0.5 feet <br />Column 4 Mudline - 0.5 feet <br />Element 204, Column - PS Concrete. <br />See ELI table for condition state and rating. <br />Element 256, Slope Protection <br />See ELI table for condition state and rating. <br />Prior to this inspection the SNBI B.C.15 Underwater Inspection rating was coded 6. The conditions present on the date of this inspection <br />are consistent with a SNBI rating of 8. <br />WATERWAY <br />Prior to this inspection the SNBI B.C.09 Channel rating was coded 6. The conditions present on the date of this inspection are consistent <br />with a SNBI rating of 6. <br />Prior to this inspection the SNBI B.C.10 Channel Protection rating was coded 6. The conditions present on the date of this inspection are <br />consistent with a SNBI rating of 5. The riprap at Bent 5 is in good condition. The timber backwall at Abutment 1 is rotated and damaged. <br />Prior to this inspection the SNBI B.C.11 Scour condition rating was coded 6. The conditions present on the date of this inspection are <br />consistent with a SNBI rating of 8. <br />Prior to this inspection the SNBI B.AP.03 Scour Vulnerability rating was directly transitioned from the NBI Item 113 Scour Critical Bridge <br />Rating and was assigned a temporary rating of (AB-T). The conditions present on the date of this inspection are consistent with a SNBI <br />rating of (AB-T). <br />INSPECTION COMMENTARY <br />1 - FreshWater TypeB - Routine UWDive Type <br />Next UWI 12/09/2029UWI Frequency months 60UWI Required Y Last UWI 12/09/2024 <br />- NOT APPLICABLE FOR THIS BRIDGE. <br />CONDITION INFORMATION <br />0Max. Water Velocity ft/s <br />SPECIAL INSPECTION INFORMATION