Repository: UIHistories Project: Planning Report - Sidewalks 1928 [PAGE 18]

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P r o f i l e s a r e ehown on p l a n a . Where no p r o f i l e s a r e shown walks w i l l p r a c t i c a l l y follow t h e natural grade. 41. jqCAVAHUff:

This c o n t r a c t o r w i l l do a l l e x c a v a t i n g and back f i l l i n g and p l a c e a l l f i l l wherever r e q u i r e d for walks. S u r p l u s e a r t h from south S i x t h walk w i l l be wasted a s d i r e c t e d w i t h i n 160 f e e t of walk. b u r p l u s e a r t h from Gregory Drive walk w i l l be used i n e a s t s e c t i o n of walk t o bank a g a i n s t walk. Broken c o n c r e t e from Mathews walks and c r o s s i n g t o bo hauled t o dump on west F i r s t S t r e e t . In F o r e s t r y s e c t i o n , l o o s e d i r t t o be removed and r e p l a c e d with c i n d e r s where n e c e s s a r y . F i l l , where r e q u i r e d under walks s h a l l be clay9 g r a v e l o r c i n d e r s and s h a l l be placed i n t h i n l a y e r s and thoroughly tamped or r o l l e d i n p l a c e . lop of sub-grede t o be shaped t o p r o f i l e of bottom of con* c r e t e walk, a l l o w i n g 4* f o r c i n d e r bed, 43. COaCRBTS SIDEWALK:

Furnish and p l a c e on top of shaped s u b grade a bed of c l e a n crushed c i n d e r s a v e r a g i n g 4ff t h i c k when tamped, same t o be w e l l wet before c o n c r e t e i s placed. Walks w i l l bo of two course t y p e . Base t o bo composed of one p a r t P o r t l a n d Cement t o s i x p a r t s a g g r e g a t e by volume. Thickness aw shown on p l a n s a l l o w i n g 1* for top* Exact p r o p o r t i o n s of f i n e and c o u r s e a g g r e g a t e s t o bo determined on t h e j o b . Top t o bo composed of one p a r t P o r t l a n d Cement t o two p a r t 8 c o a r s e c l e a n sand by volume and t o be 1* t h i c k . I f n e c e s s a r y , sand f o r t o p course s h a l l be graded t o produce a smooth working mortar. Base and top t o be p l a c e d a s c o n s e c u t i v e l y a s p r a c t i c a b l e or a s d i r e c t e d . Coarse a g g r e g a t e t o be c l e a n g r a v e l graded from 1/4* t o 1* and f r e e from s i l t of p y r i t e n o d u l e s . Any s t a n d a r d P o r t l a n d Cement f u l f i l l i n g t h e requirements of t h e l a t e s t standard s p e c i f i c a t i o n s of t h e American Society for T e s t i n g M a t e r i a l s and t h e United S t a t e s Government, and of brand a c c e p t a b l e t o t h e S u p e r v i s i n g A r c h i t e c t w i l l be a c c e p t a b l e , except for Library Service

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