Metric Standard Drawing for Brick Junction Box - 300mm Through 1650mm Pipe - General Notes

Oct 28, 2026

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Metric standard drawing detailing construction requirements for a brick junction box with an optional manhole and a 300mm through 1650mm pipe. Specifies concrete and mortar joint thickness, corner chamfering, use of class "B" concrete, concave tool finishing, and allowances for jumbo brick and alternative block materials. Includes guidance for wall thickness by height, adjustment of steel and masonry quantities for the manhole opening, junction box stepping spacing, and frame/cover elevation setting up to a stated elevation limit.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages1

Reading Time3 min

AccessFree to download

General Notes

Materials and Construction Requirements

Wall Thickness and Height Limits

Manhole and Junction Box Details

Dimensions and Quantities Table

DEPT.0F TRANSPORTATION DIVISION OF HIGHWAYS CHAMFER ALL EXPOSED CORNERS 25mm.USE CLASS "B"CONCRETE THROUGHOUT.MORTAR JOINTS 13mm±3mm THICK.CONCAVE TOOL ALL EXPOSED JOINTS.USE FORMS CONSTRUCT THE BASE SLAB.JUMBO BRICK WILL BE PERMITTED. CONCRETE BRICK OR 100mmSOLID CONCRETE BLOCKS MAY BE USED IN LIEU OF CLAY BRICK.FOR 2.4m IN HEIGHT OR LESS,USE 200mm WALL. OVER 2.4m INHEIGHT,USE 300mm WALL TO 1.8m FROM TOP OF WALL,AND 200mm WALLFOR THE REMAINING 1.8m. ADJUST DIMENSIONS AND QUANTITIESACCORDINGLY.200 PLANSEE STANDARD 840.54C.TO C. NORTH CAROLINA RALEIGH,N.C. STATE 0F 7-06 IF REINFORCED CONCRETE PIPE IS SET IN BASE SLAB OF BOX,ADD TO BASE AS SHOWN ON STANDARD NO.840.00. PROVIDE ALL JUNCTION BOXES OVER 1.0m IN DEPTH WITH STEPS300mm ON CENTERS IN ACCORDANCE WITH STD.NO.840.66. ADJUST THE STEEL,CONCRETE AND BRICK MASONRY QUANTITIESTO INCLUDE THE ADDITION OF THE MANHOLE(I.E.DIAGONAL BARSSHORTENED_AROUND OPENING IN TOP SLAB,ADDITIONAL VARIABLEHEIGHT BRICK MASONRY,OPENING IN TOP SLAB.) FOR MANHOLE COVER &FRAMESEE STANDARD 840.54 FOR MANHOLE COVER &FRAMEAMEBRICK MAY BE USED TOADJUST FRAME &COVERTO SURFACE ELEVATIONELEVATION IS 3.6 METERS.150SECTION X-X0UTLET ELEVATION MAX.DEPTH_OF_THIS STRUCTURE FROM TOP OF BOTTOM SLAB TO TOP METRIC STANDARD DRAWING FOR BRIGKJUNCT工ON B0X )WITH OPTIONAL MANHOLE) 300mm THRU.1650mm PIPE SECTION Y-Y | DEPT.OF TRANSPORTATION
RALEIGH,N.C.
DIVISION 0F HIGHMAYS
NORTH CAROLINA
STATE 0F
90-2 | | --- | | METRIC STANDARD DRAWING FOR
300mm THRU.1650mm PIPE
(WITH OPTIONAL MANHOLE)
BR工CKUNCTION B0X | | SHEET 10F 1 | | 840.32 | # GENERENERAL NOTES: BRICK MAY BE USED TO ADJUST FRAME &COVER TO SURFACE ELEVATION MAX.300mm SECTION C-C OR D-D | DIMENSIONS AND QUANTITIES FOR BRICK JUNCTION BOXES | | | | | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | DIMENSIONS OF BOX AND PIPE | | | | REINFORCEMENT
BARS | | | COVER
DIMENSIONS | | CUBIC METERS | | | DEDUCTIONS FOR ONE
PIPE m.3 | | | PIPE | SPAN | WIDTH | HEIGHT | | | | | | CONC. | BRICK MASONRY | | | | | D | A | B | H | NO. | LENGTH | kg.
REINF. | E | F | BASE &
COVER
m³ | MIN.
HEIGHT
m³ | WALL PER
m.HT.
m³ | c.S. | R.C. | | 300 | 610 | 610 | 686 | 12 | 940 | 11 | 1016 | 1016 | 0.315 | 0.451 | 0.660 | 0.015 | 0.024 | | 375 | 610 | 610 | 762 | 12 | 940 | 11 | 1016 | 1016 | 0.315 | 0.502 | 0.660 | 0.023 | 0.035 | | 450 | 711 | 711 | 838 | 14 | 1041 | 15 | 1118 | 1118 | 0.380 | 0.622 | 0.742 | 0.033 | 0.049 | | 600 | 914 | 914 | 991 | 16 | 1245 | 20 | 1321 | 1321 | 0.531 | 0.899 | 0.742 | 0.059 | 0.086 | | 750 | 1016 | 1016 | 1143 | 16 | 1346 | 21 | 1422 | 1422 | 0.617 | 1.132 | 0.991 | 0.093 | 0.130 | | 900 | 1219 | 1219 | 1295 | 20 | 1549 | 31 | 1626 | 1626 | 0.805 | 1.497 | 1.156 | 0.134 | 0.182 | | 1050 | 1422 | 1422 | 1448 | 22 | 1753 | 38 | 1829 | 1829 | 1.019 | 1.913 | 1.322 | 0.183 | 0.247 | | 1200 | 1624 | 1624 | 1600 | 26 | 1954 | 50 | 2030 | 2030 | 1.236 | 2.247 | 1.405 | 0.239 | 0.322 | | 1350 | 1776 | 1776 | 1753 | 28 | 2107 | 59 | 2183 | 2183 | 1.430 | 2.677 | 1.528 | 0.302 | 0.409 | | 1500 | 1979 | 1979 | 1905 | 30 | 2309 | 69 | 2385 | 2385 | 1.853 | 3.144 | 1.651 | 0.373 | 0.504 | | 1650 | 2159 | 2159 | 2057 | 32 | 2489 | 79 | 2566 | 2566 | 1.975 | 3.653 | 1.776 | 0.451 | 0.610 |

FAQs

What materials and concrete requirements are specified for the junction box?

Use class "B" concrete throughout and mortar joints of 13mm ± 3mm. Chamfer all exposed corners at 25mm, and finish exposed joints with concave tooling.

How should wall thickness be chosen based on the structure height?

For height 2.4m or less, use a 200mm wall. For over 2.4m in height, use a 300mm wall up to 1.8m from the top of the wall, then use a 200mm wall for the remaining height.

What adjustments are required when a manhole is included?

Adjust the steel, concrete, and brick masonry quantities to include the addition of the manhole, including diagonal bars shortened around the opening in the top slab and additional variable-height brick masonry, with the opening maintained in the top slab.

Oct 28, 2026

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