. Concrete bridges and culverts, for both railroads and highways . 31 275025 2700 30 3310 28 3810 28 1720 1870 1940 2040 2082 2200 2292 2340 2520 2785 2960 2950 3090 3070 3720 3760 3760 3720 4480 4420 4430 5210 4960 5100 5050 6000 6090| 6040 5970 87 25301171 3330147 4140 181 2750111 3650141 275 3940135, 4940 3 69 3180 99I 4320129] 5490 485 3072115j 4040145 502279 3280|l09 1370139 5470 673 34921031 5892 767 3660 97j 5010127| 6310 861 4020 91 985{ 5445145 67451079[ 43101091 5760139 71601173 4510103 76601267| 4790 97 6480127 817
. Concrete bridges and culverts, for both railroads and highways . 31 275025 2700 30 3310 28 3810 28 1720 1870 1940 2040 2082 2200 2292 2340 2520 2785 2960 2950 3090 3070 3720 3760 3760 3720 4480 4420 4430 5210 4960 5100 5050 6000 6090| 6040 5970 87 25301171 3330147 4140 181 2750111 3650141 275 3940135, 4940 3 69 3180 99I 4320129] 5490 485 3072115j 4040145 502279 3280|l09 1370139 5470 673 34921031 5892 767 3660 97j 5010127| 6310 861 4020 91 985{ 5445145 67451079[ 43101091 5760139 71601173 4510103 76601267| 4790 97 6480127 81701361 4920 91 6760121 86601476; 5680106 ! 962015 70 5890100 8000130101401664 60101 94 | 6I20I 88 8520118109201875 6860105 921013511,5601969, 6870, 99 9320129118202063, 93 ,2157J ] 801010310810133135102367! 7890 9710790127136902461j 8170, 8320 8511620115148202673 : 9480, ,91132401211674029551 97601 cox CRETE CULVERTS AXD TRESTLES. 213 Cost of Reinforced Concrete R. R. Culverts. Single Track Banks. Form—Rectangular Box. Base Prices. Concrete in place per in place 4c per lb. / 1 11/ ; 1 / / ¥ / ■^ / ■ i 1 f, / 1 M J 1 4 ^ / jl^T ^ A^ r? ^ _ i^^ fi r - ^ TZ 7 / 1 t- , i M i^ _^ ft^ Z 1 t .^ -aP-t i_ / i 0^ r /l ^t; ^■^ lii 1 1 ■?i^ V ^ T; ^ •/\ ; ,/ ^ 1 ^V M ? 1 J^~^ l/ , , , 1 i i y ■ * f/ M^ 3H ► j 1 1 v«5 r . \:^\ ♦i^ 1 ; 1 1^ y\ ! y t~ / M / M 1 1 ^ M ; i ! ^^aoi. J 1 M^ L* if^ > i 1 I i^-l 1 j^ 1 i ^ M^-^ 1 1 )^ ; A -^ 1 / -C ^ M \^\ ^/ >/^ 1 ! 1 \ ^ 11 i^ ^ i^ \ t^CJ-^I i^ ift Y \ y y 1 \i^ ^ A< ^ ^ ,i^ -^ ■ <\ (^ ^ J a- Z i^ ; i 1 Ki . ^ i^ 1 i^ d^ -^ 1 *i 2M- 4^^,<^ 1 •i V ^^ H^S 5 i \/,\ y ,: , \ I \ ^ 2i^op ,1 \ ^ y^ -^ 1 i i 1 //. ■i \J^ 1 1 Mh^ ^ 1 \ ! ^^. ■^ , 111 , I ] 1 1 MM \\\\ ±: Jo /oo I So zoo 2 So 300 iSo ^foo Fig. 46. 214 CONCRETE
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Keywords: ., bookcentury1900, bookdecade1900, bookidconcretebrid, bookyear1909
