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Kittitas County Public Works utilizes consultants to complement work done by the County and fill in where <br />technical expertise is needed. This includes the use of consultants for on -call structural analysis and for <br />bridge inspection. Through the procurement process, Public Works solicits qualified consultants to be on <br />the on -call list. On -call work is typically under a two-year agreement. <br />FLOOD WATCH AND EMERGENCY ROUTE <br />In 2021 Public Works installed real time flow monitoring on the Charlton Road Bridge over Naneum Creek <br />(Bridge No. 98288). Monitoring is being done to aide in flood watch. This may help to identify patterns of <br />flooding downstream and impacts to other bridges. <br />Five remote sensing locations are monitored throughout the County. This includes three bridge locations <br />(Manastash Road over Manastash Creek; Teanaway Road over North Fork Teanaway River; Charlton Road <br />over Naneum Creek), one culvert location (Wilson Creek Road over Wilson Creek) and one at an irrigation <br />weir (Naneum Creek north of Bar 14 Road). <br />LOAD RESTRICTED BRIDGES <br />Each bridge is required by National Bridge Inspection Standards (NBIS) to have a Load Rating calculation. <br />The Load Rating establishes how much weight the bridge can carry compared to a series of truck <br />configurations. A bridge which is unable to safely carry the full load of any of the truck configurations is <br />classified as a "Load Restricted Bridge" and is posted weight limited. Currently there are 21 bridges within <br />Kittitas County jurisdiction which are classified as "Load Restricted". Appendix C includes a map and listing <br />of load restricted bridges. <br />Prior to 2017 there were three standard truck configurations which were used to calculate load rating on <br />bridges. In 2017 eight new configurations were added for review. The additional truck configurations are <br />a result of new trucks that have been introduced by the trucking industry over the past decade. The <br />configurations vary by number and spacing of axles as well as overall vehicle weight. Kittitas County Public <br />Works has completed a project to provide updated load rating calculations to include the new <br />configurations for each bridge. <br />Kittitas County 2023 Annual Bridge Report <br />