Matched toBridge Crash Barrierbridge.ancillary_system.crash_barrieron “Barrier”
| The class asks for | Value | How | From |
|---|---|---|---|
| LengthLwants m/mm | 230.4288 m378 LF (Left Bridge) + 378 LF (Right Bridge) = 756 LF; 756 LF × 0.3048 m/LF = 230.4288 m.The Summary of Quantities lists CONCRETE BARRIER, pay item 500-2100, as 378 LF for each of the Left Bridge and Right Bridge. Total project barrier length is the sum of those two stated quantities. | derived | p2 · p02_r05 title block |
| HeightHwants m/mm | 1066.8 mm3'-6" = (3 × 12) + 6 = 42 in; 42 in × 25.4 mm/in = 1066.8 mm.The Barrier Detail directly states the barrier overall height as 3'-6". Conversion to millimetres is provided because the required measurement unit is m/mm. | derived | p8 · p08_r02 barrier detail |
| Instance CountNwants count | 4 count2 parapet/barriers at the two deck edges per bridge × 2 bridges (Left Bridge and Right Bridge) = 4 barrier runs.The transverse section identifies two Parapet/Barrier elements, one at each deck edge. The quantities schedule establishes separate Left Bridge and Right Bridge structures; applying the two edge barriers to each bridge gives four barrier runs. | derived | p7 · p07_r05 8 typp2 · p02_r05 title block |
| Material TypeMAT | reinforced concrete, Class DThe Design Data block explicitly specifies BARRIER as Class D concrete, and the barrier detail identifies the barrier as reinforced concrete. | read | p2 · p02_r01 general notes continued |
Worked out by openai/gpt-5.6-terra-pro from the readings below, which are the source. A derived value shows its arithmetic — check it against the drawing before it is priced.
How the sheets named it
Every dimension read for it4
- 30 LBS PER SQ FTFuture Paving Allowancenot attributedp2 · p02_r01
- 378 LFCONCRETE BARRIER - LEFT BRIDGEp2 · p02_r05
- 378 LFCONCRETE BARRIER - RIGHT BRIDGEp2 · p02_r05
- 3'-6" ft-inBarrier heightp8 · p08_r02
Notes on the sheets that carry it
- p2VIBRATION MONITORING - THE PROJECT ENGINEER SHOULD CONTACT THE GEOTECHNICAL BUREAU OF THE GEORGIA DOT OFFICE OF MATERIALS AND TESTING AT GEOTECHNICAL_SUBMITTALS @DOT.GA.GOV TWO WEEKS PRIOR TO DRIVING PILES. SEE SPECIAL PROVISION 154 - CONSTRUCTION VIBRATION MONITORING.
- p2STEEL H-PILES - USE STEEL FOR H-PILES THAT MEETS THE REQUIREMENTS OF ASTM A 709 GR 50.
- p2PILE LENGTHS - ERRATIC PILE LENGTHS CAN BE EXPECTED.
- p2PILE DRIVING - SHOULD PILES FAIL TO OBTAIN DRIVING RESISTANCE AFTER ACHIEVING THE PILE TIP ELEVATIONS SHOWN, ALLOW PILES TO FREEZE A MINIMUM OF 24 HOURS AND RESTRIKE WITH A WARM HAMMER.
- p2SMOOTH DOWEL BARS - PLACE SMOOTH DOWEL BARS IN FORMED 3" DIAMETER X 12" DEEP HOLES AND GROUT IN PLACE SIMILAR TO ANCHOR BOLTS, SEE SUB-SECTION 501.3.05.B.3 OF THE GEORGIA DOT SPECIFICATIONS. STIRRUPS MAY BE SHIFTED SLIGHTLY TO CLEAR FORMED HOLES.
- p2provide table for 2' above estimated tip elevations
- p2SPECIFICATIONS ------------------------------------- AASHTO LRFD 9TH EDITION, 2020 (DESIGNED FOR SEISMIC PERFORMANCE ZONE 2, AS=0.142, SDI=0.155)
- p2DESIGN VEHICLE LIVE LOAD --------------------------------------------------- HL-93
- p2FUTURE PAVING ALLOWANCE --------------------------------------------- 30 LBS PER SQ FT
- p2CONCRETE: SUPERSTRUCTURE ------------------------------------- CLASS D, f'c = 4,000 PSI
- p2BARRIER-------------------------------------- CLASS D, f'c = 4,000 PSI
- p2PSC BEAMS ------------------------- CLASS AAA, f'c = SEE BEAM SHEETS
- p2PSC BEAM ALLOWABLE TENSION ----------------------- SEE BEAM SHEETS
- p2SUBSTRUCTURE ------------------------------- CLASS AA, f'c = 3,500 PSI
- p2REINFORCING STEEL: --------------------------------- GRADE 60, fy = 60,000 PSI
- p2PRETENSIONING STRANDS: ------------------------------------- f's = 270,000 PSI
- p2STEEL H-PILES: ---------------------------------------GRADE 50, fy = 50,000 PSI
- p2LOAD TEST, STEEL H, HP 12 X 53 (IF REQD)
- p412" PAVING REST
- p4END POST
- p4BARRIER TRANSITION
- p4BARRIER TRANSITION DETAIL
- p4SCALE: 1/4" = 1'-0"
- p53/4" CHAMFER
- p5LOW MODULUS SILICONE SEALANT (TYPE A)
- p51" PREFORMED JOINT FILLER
- p5HOLD IN PLACE WITH 10d GALV. NAILS.
- p5DETAILS OF 1" EXPANSION JOINT IN BARRIER
- p5NO SCALE
- p78-404 AT EQUAL SPACES
- p7FENCE NOT SHOWN, TYP.
- p7POUR EDGE BEAM FLUSH WITH OUTSIDE FACE OF BEAM, TYP.
- p7NOTE: BEARING PADS NOT SHOWN
- p7DIMENSION "D" IS MEASURED FROM TOP OF SLAB TO TOP OF BEAMS AT CENTERLINE BEARING. VARY "D" BETWEEN BEARINGS TO COMPENSATE FOR DEAD LOAD DEFLECTION, AND VERTICAL CURVE.
- p7MAINTAIN A CONSTANT SLAB THICKNESS OF 7 3/4" BETWEEN BEAMS AND 8" IN THE OVERHANGS.
- p7"D" = 8 3/4" INTERIOR BEAMS
- p7"D" = 9 1/8" EXTERIOR BEAMS
- p7REQUIRED CONSTRUCTION JOINT PARALLEL WITH DECK, TYP.
- p73/4" TRIANGULAR DRIP BEAD FULL LENGTH OF BRIDGE, TYP.
- p7SR 21 WB = PGL
Every crop it was read in — the drawing beside what the model took off it
Page 2
p02_r01 general notes continuedNotes
- Barrierreinforced concrete, Class DReferenced in Design Data concrete schedule.
3 in Dowel bar hole diameter12 in Dowel bar hole depth24 hours Minimum freeze time before restrike30 LBS PER SQ FT Future paving allowance4,000 PSI Superstructure concrete strength4,000 PSI Barrier concrete strength3,500 PSI Substructure concrete strength60,000 PSI Reinforcement steel yield strength+5 more
p02_r05 title blockSchedule
- Concrete barrierreinforced concretequantity in LF
35 CY FOUND BKFILL MATL, TP II35 CY FOUND BKFILL MATL, TP II295 CY BRIDGE EXCAVATION, GRADE SEPARATION295 CY BRIDGE EXCAVATION, GRADE SEPARATION811 SY GROOVED CONCRETE811 SY GROOVED CONCRETELUMP LS SUPERSTR CONCRETE, CL D, BR NO-1 LTLUMP LS SUPERSTR CONCRETE, CL D, BR NO-1 RT+22 more
p02_r01Notes
- Barrierreinforced concrete, Class DReferenced only in Design Data concrete schedule; not shown graphically.
* Bent Number***.** Pile Tip Elevation3 in Dowel hole diameter12 in Dowel hole depth24 hours Pile freeze time30 LBS PER SQ FT Future Paving Allowance4,000 PSI Superstructure Concrete Strength4,000 PSI Barrier Concrete Strength+5 more
p02_r05Table
- Concrete barrier500-2100concrete
35 CY FOUND BKFILL MATL TP II - LEFT BRIDGE35 CY FOUND BKFILL MATL TP II - RIGHT BRIDGE295 CY BRIDGE EXCAVATION - LEFT BRIDGE295 CY BRIDGE EXCAVATION - RIGHT BRIDGE811 SY GROOVED CONCRETE - LEFT BRIDGE811 SY GROOVED CONCRETE - RIGHT BRIDGELUMP LS SUPERSTR CONCRETE CL D BR NO-1 LT - LEFT BRIDGE249 SUPERSTR CONCRETE CL D BR NO-1 LT reference+25 more
Page 4
p04_r02 barrier transition detailDetail
- Barrier (parapet) transition×1taperedconcreteTop edge tapers upward from 2" at end post to 1'-9 1/2" at far end over a 12'-0" length, with slope callout 1:18
12 in Paving rest width2 in Height at end post12'-0" ft-in Horizontal length of transition1'-9 1/2" ft-in Height at far end of transition1 Slope ratio rise18 Slope ratio run1/4" = 1'-0" Drawing scale
p04_r02Detail
- Barrier (transition segment)×1tapered, rectangular in elevationconcreteElevation view of barrier tapering in height from end post to full section over 12'-0" length
12 in Paving rest width12'-0" ft-in Transition length2 in Step/offset height1'-9 1/2" ft-in Barrier height at end of transition1 Taper slope ratio (rise)18 Taper slope ratio (run)1/4" = 1'-0" Drawing scale
Page 5
p05_r02 details of 1 expansion joint in barrierDetail
- Barrier (traffic/parapet)×1tapered/trapezoidal profilereinforced concreteShown in Side Elevation, only partial profile with expansion joint at base area indicated by 3" dimension
3/4 in Chamfer1 in Joint filler thickness3/4 in Top offset3/4 in Bottom offset10d Nail size3 in Side elevation offset
p05_r02Detail
- Barrier×1tapered (sloped face)concreteSide elevation shows tapered barrier profile with chamfer and joint
3/4 in Chamfer size3/4 in Joint filler cover (plan)3/4 in Joint filler cover (plan)1 in Preformed joint filler thickness3/4 in Joint filler cover (elevation)3 in Offset dimension
Page 7
p07_r05 8 typCross Section
- Parapet/Barrier×2tapered vertical wallreinforced concreteone at each end of the section (left and right), with fence noted above right one
8 in Deck thickness2 in Beam spacing offset2 in Beam spacing offset8-404 Equal spacing dimension2 % Cross slope
p07_r01Cross Section
- Edge parapet/barrier upstand×2taperedreinforced concretefence-mounting curb at each edge, fence itself not shown
7 3/4 in Slab thickness between beams8 in Slab thickness in overhangs8 3/4 in Dimension D, interior beams9 1/8 in Dimension D, exterior beams22'-0" Overall width43'-7" Out to out width14'-2 1/2" Right side width40'-0" Gutter to gutter+25 more
p07_r05Cross Section
- Barrier/Parapet×2tapered vertical elementreinforced concreteone at each edge of deck
8 in Deck thickness8-404 Beam spacing2 in Edge offset2 in Edge offset2 % Cross slope
Page 8
p08_r01 for further details see georgia dot specDetail
- Barrier×1tapered/rectangularreinforced concreteShown in Fence Elevation and Fence Post Detail, supports fence
1 1/2 in Overhang width1'-8" ft-in Width34'-0" ft-in Width6'-8" ft-in Width1'-1" ft-in Width3'-6" ft-in Barrier height at right2 % Cross slope1 in Gap min.+36 more
p08_r02 barrier detailDetail
- Barrier (bridge parapet/traffic barrier)×1tapered, sloped-face rectangular sectionreinforced concreteCross section of concrete barrier showing vertical/sloped face profile
2'-2" ft-in Lap length1'-9 1/2" ft-in Top width8" in Offset to inner edge1'-0" ft-in Width segment1 1/2" in Clear cover3" in Clear cover3'-6" ft-in Height2" in Clear cover+4 more
p08_r01Detail
- Barrier×2tapered/rectangularreinforced concreteShown in Fence Elevation and Fence Post Detail atop slab
1 1/2 in Width1'-8" ft-in Width34'-0" ft-in Length6'-8" ft-in Width1'-1" ft-in Width3'-6" ft-in Height2% % Slope1" in Gap+37 more
p08_r02Detail
- Traffic barrier (parapet)×1tapered/trapezoidal cross-sectionreinforced concreteCross section of a bridge barrier/parapet with reinforcing bars shown; end post tapers to 0"
2'-2" ft-in Lap length1'-9 1/2" ft-in Top width8" in Sub-width1'-0" ft-in Sub-width1 1/2" in Clear cover3" in Clear cover2" in Clear cover, two sides3'-6" ft-in Barrier height+5 more
Page 9
p09_r04 section thru edge beamSection
- edge beam / barrier curb×2tapered upstandreinforced concreteend upstands at left and right edges, one noted with fence detail
2 in edge distance2 in edge distance8-404 beam spacing dimension2 % cross slope
p09_r04Cross Section
- edge beam / barrier curb×2rectangularreinforced concretepoured flush with outside face of beam at each end
- parapet/fence post support×2tapered vertical elementreinforced concretesupport at deck edge, fence not shown per note
2 in edge clearance2 in edge clearance8-404 beam spacing2 % cross slope