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NUMBER: 89342 <br />BRIDGE RATING SUMMARY <br />— Cascade <br />STRUCTURE ID: <br />08466600 <br />SPAN TYPE: <br />Timber Stringers <br />LENGTH: <br />21'-6" <br />SPANS: <br />21'-6" <br />DESIGNED BY: <br />Unknown <br />DESIGN LOAD: <br />Unknown <br />REFERENCE INSPECTION: 11/27/2018 <br />RATING BY: Sara Hasayen <br />CHECKED BY: Mari'ean Frymoyer, PE, SE <br />RATING DATE: 12/04/2020 <br />RESULTS OF RATING <br />DESIGN LOADS Rating <br />WSBIS Item <br />YL Allowable Load <br />Controlling Point <br />Factor <br />No. <br />Controlling Point <br />HS20 Inventory 0.65 <br />NIA 1555/1556 <br />Moment in Stringer <br />HS20 Operating 1.04 <br />NIA 1552/1553 <br />Moment in Stringer <br />LEGAL &NRL LOADS <br />Rating <br />Factor <br />OPR <br />YL <br />Allowable Load <br />(OPR) Tons <br />WSBIS Item <br />No. <br />Controlling Point <br />AASHTO 1 (Type 3) <br />1.20 <br />NIA <br />Allowable Load <br />2587 <br />Moment in Stringer <br />AASHTO 2 (Type 3S-2) <br />1.31 <br />NIA <br />(OPR) <br />2588 <br />Moment in Stringer <br />AASHTO 3 (Type 3-3) <br />1.45 <br />NIA <br />2589 <br />Moment in Stringer <br />Notional Rating Load (NRL) <br />0.91 <br />NIA <br />2590 <br />Moment in Stringer <br />Special Haul Vehicle (SU4) <br />1.02 <br />NIA <br />2591 <br />Moment in Stringer <br />Special Haul Vehicle (SU5) <br />0.96 <br />NIA <br />29 <br />2592 <br />Moment in Stringer <br />Special Haul Vehicle (SU6) <br />0.91 <br />NIA <br />31 <br />2593 <br />Moment in Stringer <br />Special Haul Vehicle (SU7) <br />0.91 <br />NIA <br />35 <br />2594 <br />Moment in Stringer <br />Emergency Vehicle (EV2) <br />1.00 <br />NIA <br />2598 <br />Moment in Stringer <br />Emergency Vehicle (EV3) <br />0.66 <br />NIA <br />2599 <br />Moment in Stringer <br />REMARKS: <br />Load posting required, Trucks SU 5,6 and 7 and EV3. <br />If stringers show signs of shear distress, posting shaA be updated. <br />:RATING METHOD (WSBIS 155111554): <br />7 - Allowable Stress Method (BDM 50.23 2019, AASHTO S. S. 17th Edition, MBE 2018) <br />BRIDGE INFO: <br />Superstructure Rating based on 0% impact, 13 inch of BST on 2 inches of gravel. <br />Deck coded "6" <br />Superstructure coded "6" <br />Substructure coded "6" <br />Rating <br />PERMIT LOADS <br />Factor <br />YL <br />Allowable Load <br />WSBIS Item <br />Controlling Point <br />(OPR) <br />No. <br />OPR <br />WSDOT Overload 1 <br />0.94 <br />NIA <br />2596 <br />Moment in Stringer <br />WSDOT Overload 2 <br />0.75 <br />NIA <br />2597 <br />Moment in Stringer <br />REMARKS: <br />Load posting required, Trucks SU 5,6 and 7 and EV3. <br />If stringers show signs of shear distress, posting shaA be updated. <br />:RATING METHOD (WSBIS 155111554): <br />7 - Allowable Stress Method (BDM 50.23 2019, AASHTO S. S. 17th Edition, MBE 2018) <br />BRIDGE INFO: <br />Superstructure Rating based on 0% impact, 13 inch of BST on 2 inches of gravel. <br />Deck coded "6" <br />Superstructure coded "6" <br />Substructure coded "6" <br />