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Printed on:Friday 12/13/2024 02:38 PM 29C0415/AAAH/147521Pageof4 Department of Transportation - Division of Maintenance Structure Maintenance & Investigations 9 UNDERWATER INVESTIGATION DETAILS STEEL INVESTIGATION DETAILS This structure qualifies for an in-depth Steel investigation because it possesses the following non-redundant steel tension members (NSTM) or fatigue prone details : NSTMI Required NSTMI Freq.Next NSTM InspectionYes24 08/22/2026 Other: NSTM SCOPE AND ACCESS The water in the channel measured over twenty feet during this bridge inspection. Bents 2 through 7 were submerged. The superstructure and substructure elements located above the waterline were inspected from the waterline with the aid of binoculars. The bridge deck was inspected by walking on and about the bridge. All visible elements were fully inspected. A complete routine inspection was performed. An Underwater Investigation was performed by the Caltrans Underwater Team on 05/15/2023. A brief summary of their findings is noted below in the Element Table. See the 05/15/2023 Inspection Report for further details. A Fracture Critical Investigation was performed on 08/25/2022 by the Caltrans Fracture Critical Inspection Team. The investigation was conducted in accordance with the Fracture Critical Member Inspection Plan, dated 08/19/2020. See the 08/25/2022 Fracture Critical report or the relevant elements for more information. SAFE LOAD CAPACITY The load rating for this structure is being reviewed by SM&I Ratings Branch under Work Request 9732. An updated Load Rating Summary will be archived when this review is complete. The current rating has been temporarily assigned to this structure in accordance with SM&I procedures. OPERATIONAL SIGNS "Stop Ahead" signs are posted on the bridge. "No Stopping Any Time" and "Stop" signs are posted at the approaches at the ends of the bridge for both directions of traffic. See Photos 1 and 2. "No Truck Turn Around" signs are posted along Bacon Island Road east of the bridge, and at the east approach to the bridge near Abutment 8. See Photo 2. The navigational water depth gages are visible near Span 4, on both sides of the bridge. The navigational lights located on Span 4 at center of navigation channel, and on dolphins are present on both sides of the bridge. The lights are off during the inspection in daylight hours, it is unknown if the lights function at night. INSPECTION COMMENTARY 3 - BrackishWater TypeB - Routine UWDive Type Next UWI 05/15/2028UWI Frequency months 60UWI Required Y Last UWI 05/15/2023 Last NSTMI 08/22/2024 months CONDITION INFORMATION SPECIAL INSPECTION INFORMATION