5/17/16 DDC-CD BRIDGE PROGRAMS The Department of Design and Construction (DDC), Civil Division (CD) has two (2) bridge programs that are managed by the Structural Support Section. These include the Bridge Inspection, Inventory and Appraisal program and the Bridge Rehabilitation program. The Bridge Rehabilitation program is an all-inclusive program that incorporates programs conducted in prior years (Bridge Seismic Retrofit and Bridge Scour Protection). Bridge Inspection, Inventory and Appraisal Background o The Bridge Inspection, Inventory and Appraisal program is the foundation of the entire bridge management system. Information obtained during the inspection and appraisal is used to determine needed maintenance and repairs, for prioritizing rehabilitations, for allocating resources, and for evaluating and upgrading the bridge capacity to current code. o Bridge Inspection, Inventory and Appraisal is the only program in the Structural Support Section that is using federal funds at this time. Federal Highway Administration (FHWA) participation is available for conducting this effort at a cost share of 80% Federal and 20% City. This effort and the respective consultant selections are coordinated through the Hawaii Department of Transportation (HDOT) and FHWA. o There are 400 bridges on the current bridge inspection list - 205 federal-aid (FA) bridges and 195 non federal-aid (NF) bridges. o Inspection of FA bridges is mandated by FHWA and HDOT in accordance with the Code of Federal Regulations (CFR) and must be inspected at least every two (2) years. Inspection of NF bridges depends on availability of local funds; these bridges are less than 20-foot span, mostly culverts, and are currently being inspected once every four (4) years. Status o Two (2) consultant contracts are awarded each year for FA bridges (approximately 50 bridges each) and one (1) contract each year for approximately 50 NF bridges. A bridge inspection report is produced for each bridge. o Additional load rating analyses for “specialized hauling vehicles” were mandated by FHWA to be completed by the end of 2017 and 2022, depending on the existing bridge capacity. Most of the additional load ratings were completed for FA bridges (one bridge left). Load rating evaluations of City emergency vehicles are currently being done to establish safe routes of travel for needed City services. Non-destructive testing is currently being performed on NF bridges, many of which lack as-built drawings, in order to better evaluate bridge capacity and identify and address load limited, short span bridges. Funding o The bridge inspection program is now funded through the Operating budget. o The FA bridge inspection program is included in the STIP document and eligible for Federal funding participation. Bridge Rehabilitation Background o The large majority of bridges in the City inventory are over 50 years old and are therefore considered “historic.” A bridge in this category has typically exceeded its projected useful life, in some cases several times over, and is eligible for replacement. However, in most jurisdictions, including the City and County of Honolulu, this is not possible due to limited funding. o The Bridge Rehabilitation Program is dedicated to the rehabilitation and upgrade of City bridges as identified by the bridge inspection program for the protection of public health and safety. o Rehabilitation includes the repair of significant damage to the major structural elements that impact its load carrying capacity and integrity; the repair of scour conditions, such as the undermining of the bridge foundations caused by erosion due to swiftly moving water; the upgrade of the original design load capacity to current code; seismic retrofit; bridge railing upgrades; and the minor repair of spalls and cracks. o Approvals and coordination are required with other various agencies for compliance with governmental regulations, such as the Clean Water Act, the Americans with Disabilities Act Accessibility Guidelines, and the National Historic Preservation Act. Status o Due to the continued deterioration and the aging bridge infrastructure relative to current code, bridge rehabilitation is an ongoing and pressing need. Funding in recent years had been earmarked for construction, but more design projects are currently scheduled in order to provide for future construction work. Funding o The bridge rehabilitation program is funded through the CIP budget. o Where possible, bridge rehabilitation construction projects may be incorporated into street paving projects in order to minimize overall construction time and cost; also, to minimize disruption to traffic.