construction materials are identified through an alphabetic symbol as follows: A = Concrete block B = Stone masonry C = Dressed stones An example code of would therefore stand for a drop inlet type “B2” structure to be in stone masonry. FIGURE H.8 - HEADWALL TYPE 1 900 0.60 0.40 2.89 1.20 0.20 0.40 0.30 1.39 0.40 1.50 1.03 1.35 0.53 B MASONRY) 600 0.40 0.30 2.35 1.00 0.20 0.40 0.30 1.15 0.40 1.20 0.42 0.93 0.36 TYPE 0.4 0.8 (STONE 450 0.40 0.30 2.20 1.00 0.20 0.40 0.30 1.15 0.40 1.05 0.33 REQUIREMENTS 900 0.30 0.40 2.89 1.20 0.20 0.20 0.30 1.39 0.20 1.50 0.51 0.67 0.53 A BLOCKS 600 0.30 0.30 2.35 1.00 0.20 0.20 0.30 1.15 0.20 1.20 0.32 0.47 0.36 TYPE MATERIAL (CONCRETE 0.3 0.4 450 0.30 0.30 2.20 1.00 0.20 0.20 0.30 1.15 0.20 1.05 0.33 AND m m m m m m m m m m3 m3 m3 UNIT (M) IN REQUIREMENT DIMENSIONS WALL WALL WALL WALL APRON APRON APRON DIAMETER APRON FOUNDATION FOUNDATION FOUNDATION (Concrete) (Concrete) MATERIAL FOUNDATION DIMENSION PIPE HEAD/WINGWALLS (Concrete/Masonry) a b c d e g h k f I (HEAD AND WINGWALLS) Pipes of 6.00 7.00 8.00 No. PIPES CULVERT 4.50 5.50 6.50 WIDTH X-SECTION FIGURE H.9 - HEADWALL TYPE 2 (DROP INLET) B 900 AND 0.40 0.30 1.50 1.00 0.20 0.60 0.60 1.20 0.40 1.50 1.00 0.30 0.79 2.61 0.30 TYPE (STONE
construction materials are identified through an alphabetic symbol as follows: A = Concrete block B = Stone masonry C = Dressed stones An example code of “B2” would therefore stand for a drop inlet type structure to be in stone masonry. FIGURE H.8 - HEADWALL TYPE 1 DIMENSIONS AND MATERIAL REQUIREMENTS TYPE B (STONE MASONRY) 900 0.60 0.40 2.89 1.20 0.20 0.40 0.30 1.39 0.40 1.50 1.03 1.35 0.53 600 0.40 0.30 2.35 1.00 0.20 0.40 0.30 1.15 0.40 1.20 0.42 0.93 0.36 450 0.40 0.30 2.20 1.00 0.20 0.40 0.30 1.15 0.40 1.05 0.4 0.8 0.33 TYPE A (CONCRETE BLOCKS 900 0.30 0.40 2.89 1.20 0.20 0.20 0.30 1.39 0.20 1.50 0.51 0.67 0.53 600 0.30 0.30 2.35 1.00 0.20 0.20 0.30 1.15 0.20 1.20 0.32 0.47 0.36 450 0.30 0.30 2.20 1.00 0.20 0.20 0.30 1.15 0.20 1.05 MATERIAL REQUIREMENT 0.3 0.4 0.33 PIPE DIAMETER IN (M) UNIT m m m m m m m m m m3 m3 m3 FOUNDATION FOUNDATION FOUNDATION APRON APRON WALL WALL WALL WALL APRON FOUNDATION (Concrete) HEAD/WINGWALLS (Concrete/Masonry) APRON (Concrete) DIMENSION a b c d e f g h I k (HEAD AND WINGWALLS) CULVERT PIPES No. of Pipes 6.00 7.00 8.00 X-SECTION WIDTH 4.50 5.50 6.50 FIGURE H.9 - HEADWALL TYPE 2 (DROP INLET) AND TYPE B (STONE 900 0.40 0.30 1.50 1.00 0.20 0.60 0.60 1.20 0.40 1.50 1.00 0.30 0.79 2.61 0.30