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Printed on:Wednesday 05/07/2025 08:05 AM 29C0022/AABH/152630Pageof2 <br />Department of Transportation - Division of Maintenance Structure Maintenance & Investigations <br />19 <br />South Approach: Continuous RC slab with hinges in Spans 2 and 6, Bents 4 and 8 with RC bent caps on PC/PS concrete column pile <br />extensions (8), Bents 2, 3, 5, 6, 7, 9, 10, on PC/PS concrete column pile extensions (4), RC pile cap Abutment 1 with integral wingwalls <br />on PC/PS concrete piles (3). <br />Main Double Leaf Bascule: Double-leaf bascule with locking center span shear pins and locking heel counterweights, with built up <br />welded steel outer girders (2), and trunnion girders (2 + 2), steel (30WF132) floor beams (3 + 3), built up floor beams (2 + 2) and built up <br />end beams (1 + 1), steel (18WF50) stringers (3) with RC deck (75% lightweight), on trunnions inside hollow counterweight pits inside <br />Piers 11 and 12 with four RC walls each. Piers 11 and 12 have bin type RC slabs supported on three of the RC walls and on single steel <br />(30WF132) beams which span over the pits. Piers 11 and 12 are founded on RC spread footings on CISS piles. <br />North Approach: Continuous RC slab, Bent 13 on PC/PS concrete pile extensions (4), RC pile cap Abutment 14 with integral wingwalls <br />on PC/PS piles (3). <br />South Approach: 1 @ 21.3 ft, 8 @ 28.0 ft with hinges in Spans 2 and 6, 1 @ 20.0 ft <br />Main Double Leaf Bascule: hinge bearing, 1 @ 12.8 ft slab plus 2.0 ft overhang which overlap a 1 @ 20.2 ft trunnion leaf, trunnion <br />bearing, 1 @ 122.5 ft double leaf bascule with midspan shear joint, trunnion bearing, 2.0 ft overhang plus 1 @ 12.8 ft slab which overlap <br />a 1 @ 20.2 ft trunnion leaf, hinge bearing <br />North Approach: 2 @ 20.0 ft <br />STRUCTURE DESCRIPTION <br />SPAN CONFIGURATION <br />(29)SAN JOAQUIN <br />10 <br />(00000) _____ <br />BORDER BRIDGE STRUCTURE NUMBER <br />BORDER BRIDGE STATE CODE <br />COUNTY CODE <br />HIGHWAY DISTRICT <br />STATE NAME <br />PLACE CODE <br />% SHARE <br />AGENCY INFORMATION <br />CONSTRUCTION INFORMATION <br />N/A <br />YEAR BUILT <br />YEAR MODIFIED <br />LENGTH (M) <br />JOINTS <br />1959 <br />SKEW <br />NO. OF HINGES <br />143.6 <br />0 <br />44 <br />MAIN SPANS <br />APPR SPANS 12 <br />1 <br />MAX SPAN (M)37.3 <br />STR FLARE 0-NO <br />NBIS BR LENGTH Y <br />STRUCTURE TYPE MAIN 3: STEEL <br />DESIGN TYPE MAIN 16: MOVABLE - BASCULE <br />STRUCTURE TYPE APPR 2: CONCRETE CONT <br />DESIGN TYPE APPR 01: SLAB <br />INSPECTION INFORMATION <br />CRITICAL FEATURE INSPECTION (93) CFI DATE <br />24 MO 04/23A)Y-YESNSTM INSP <br />MON-NOOTHER SPECIAL INSP C) <br />60 MOY-YESUNDERWATER INSP 11/20B) <br />INSPECTION DATE (91) FREQUENCY MO02/25 24 <br />MAINTAIN 02 COUNTY HWY AGENCY <br />OWNER 02 COUNTY HWY AGENCY <br />CALIFORNIA 069 <br />N/AN/A <br />N/A <br />N/A <br />(1) <br />(2) <br />(3) <br />(4) <br />(21) <br />(22) <br />(98) <br />(99) <br />(90) <br />(92) <br />A) <br />B) <br />C) <br />(27) <br />(106) <br />(34) <br />(49) <br />(112) <br />(45) <br />(46) <br />(48) <br />(35) <br />(43a) <br />(43b) <br />(44a) <br />(44b) <br /> STRUCTURE OVERVIEW <br />CHANNEL CONDITION RATING 6 Satisfactory <br />7 Good <br />6 Satisfactory <br />U Unknown Foundation <br />B) Restricted routine permits <br />No E/E' details <br />(B.C.09) <br />CHANNEL PROTECTION RATING(B.C.10) <br />SCOUR CONDITION RATING(B.C.11) <br />NSTM CONDITION RATING(B.C.14) <br />UW CONDITION RATING(B.C.15) <br />SCOUR VULNERABILITY RATING(B.AP.03) <br />ROUTINE PERMIT LOADS(B.LR.08) <br />FATIGUE DETAILS(B.IR.02) <br />SNBI ITEMS USED TO CHECK INSPECTION FREQUENCY