43-0434 Bridge Inspection Report 2019

Technical Report · Thu Aug 15 04:00:00 EDT 2019

DOI:https://doi.org/10.2172/2229678· OSTI ID:2229678

Pantone, William Richard ^[1]; Jauregui, David ^[2]

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1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
2. New Mexico State Univ., Las Cruces, NM (United States)

The documentation includes the following: 1. 2019 NMDOT Bridge Inspection Report including Element Level Data Collection (in hardcopy and digital formats prepared by NMSU) conforms to the National Bridge Inspection Standards and AASHTO Manual for Bridge Element Inspection; 2. 2019 Supplemental Report (in hardcopy and digital formats prepared by NMSU) provides detailed information related to current condition of major bridge components; 3. 2019 Inspection Pictures (in digital format prepared by NMSU); 4. 2019 Delamination Map (in hardcopy format prepared by LANL) During the 2019 inspection, a critical finding was reported by email on June 22, 2019 regarding the condition of the north joint. The joint had suffered impact damage, possibly due to snow plows. This damage resulted in the seal being pulled out and the exposure of the reinforcing steel plate which was bent upward and in direct alignment with the vehicle wheel path. This was reported as a critical finding because the steel plate posed a serious hazard that could result in a punctured tire to vehicles, motorcyclists and/or bicyclists, and ultimately loss of control. This issue was immediately addressed and the hazard was eliminated by June 23, 2019. Based on the 2019 inspection, the bridge deck is rated in condition. Chain dragging the deck identified several areas with delamination. The delaminations are concentrated near the expansion joints, in the closure joint of the deck near the bridge centerline, and at the south end northbound lanes. The chain drag performed during the 2019 inspection revealed 34,620 sq. in. (240 sq. ft.) of delaminations (not including the sidewalk). It is recommended that the delaminations and spalls with exposed rebar be repaired. e 2019 inspection is provided in the supplemental report.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: 89233218CNA000001
• OSTI ID: 2229678
• Report Number(s): LA-UR--23-33761
• Country of Publication: United States
• Language: English

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42 ENGINEERING