CONSTRUCTION UPDATES

SEPTEMBER 2019

Sunday, September 15 – Saturday, September 21

09/16/19: Contractor received and placed 6.0 CY of Class C, 3,000 PSI high early concrete in 18.0 LF of cradle underneath the 15 inches diameter connect pipe run between manhole str.M-1 and inlet structure I-1 on SB-295. Installed rebars on deck extension slabs on Bridges 1016 and 1017 Abutment A. Installing intermediate diaphragms on Bridge 1016 Span 2 and also continued the drilling of holes on Bridges 1016 and 1017 Abutments and pier caps for anchor bolts on girders G, H, I, J, K, L, M and N. Demolished existing asphalt pavement on SB-295 between sta. 24+00 and 25+00, right of the baseline including the additional full depth pavement. Removed formworks from UHPC closure joints between modular units 6-1 through 8-1 and 6-2 through 8-2 on NB-295, bridge 1016, left of the baseline. Started the chipping of concrete on Bridge 1017 Pier for type 1 or 2 crack repair. Installing junction boxes JB-7 and JB-2 on the backwall of bridge 1017, abutment A and B respectively. 

09/17/19: Contractor backfill over 15” diameter RC connect pipe run between manhole str. M-1 and inlet structure I-1 on SB-295. Excavated to subgrade on SB-295 between sta. 24+00 and 25+00, right of the baseline which was added to proposed full depth pavement. Continued the installation of screwed in rebars on deck extension slabs on Bridges 1016 and 1017 Abutment A and B. Continued the drilling of holes on Bridges 1016 and 1017 Abutments and pier caps for installation of anchor bolts on girders G, H, I, J, K, L, M and N. Performed hard surface demolition and common excavation for full depth pavement on SB-295 approximately between sta. 23+60 and 24+30, right of the baseline. Continued the chipping of concrete on Bridge 1017 pier for type 1 or 2 crack repair. Installed electrical conduits for under bridge lighting on Bridge 1017, Abutment B. The crew installed 20 ft of PVC coated rigid conduit between JB-2 and JB-3, 16 ft of #10 cable from JB-2 to UB-2, 8 ft of #8 ground wire from JB-2 to UB-2, 16 ft of #10 cable from JB-1 to UB-1 and 8 ft of #8 ground wire between JB-1 and UB-1. 

09/18/19: Contractor excavated to plan depth placed 6 inches lift of no. 57 aggregates bedding material and set the base units of manhole str. M-5 and quality inlet str. QI-5 on SB-295 sta. 23+80 and sta. 23+62, right of the baseline respectively. Excavated and installed 13 LF (1-6 ft and 1-7 ft joints) of 15” connect pipe between manhole M-5 and quality inlet QI-5. Removed existing structure I-2 on SB-295, sta. 23+62, right of the baseline prior to the setting of quality inlet structure QI-5. Continued the installation of rebars for deck extension slabs on Bridges 1016 and 1017 Abutments A and B. Continued the drilling of holes to install anchor bolts on bridges 1016 abutment A. on girders K, L, M and N. Continued the chipping of concrete for type 1 and 2 crack repairs on the north and south side faces on Bridge 1016 pier. Installing electrical conduits for under bridge lighting on bridges 1016 and 1017. The crew installed three junction boxes, JB-8, JB-3 and JB-6, 11 ft. of PVC coated rigid conduit between JB-14 and JB-6, 20 ft between JB-5 and JB-6 and 10 ft between HH-1 and JB-3. 

09/19/19: Contractor received and placed 6.0 CY of Class C, 3,000 PSI high early concrete in 13.0 LF of cradle underneath 15 inches diameter connect RC pipe run between manhole str. M-5 and quality inlet structure QI-5 on SB-295 between sta. 23+80 and 23+62, right of the baseline. Placed forms and installed rebars including the screwed in rebars on deck extension slabs on Bridges 1016 and 1017, abutments A and B. Continued the drilling of holes on bridges 1016 and 1017 abutments and pier caps for installation of anchor bolts on girders G, H, I, J, K, L, M and N. Performed hard surface demolition and common excavation for full depth pavement on SB-295 approximately between sta. 23+60 and 24+30, right of the baseline. Continued the chipping of concrete on Bridge 1017 pier for type 1 or 2 crack repair. Installed electrical conduits for under bridge lighting on bridges 1016 and 1017. Installed 16 ft of #10 cable from JB-3 to UB-3, 8 ft of #8 ground wire from JB-3 to UB-3, 16 ft of #10 cable from JB-6 to UB-6 and 8 ft of #8 ground wire from JB6 to UB-6, 8 ft of #10 cable from JB-7 to UB-7 and 4 ft of #8 ground wire from JB-7 to UB-7. Placed 12 inches depth of GAB material in two 6 inches compacted lifts in proposed full depth pavement section on SB-295, DDOT soil technician Patel performed compaction tests on GAB placed and material was found to be adequately compacted. 

Placed 12 inches depth of base asphalt BM-25 in three 4 inches compacted lifts in proposed full depth pavement section on SB-295. 

09/20/19: Contractor completed the installation of rebars and forms on bridges 1016 and 1017 deck extensions at abutment A and B. The crew received and placed 18.0 cubic yards of class A in deck extensions. Backfilled over 15 inches RC connect pipe installed between manhole M-5 and quality Inlet QI-1. The soil backfill material were placed in 6 inches loose lifts compacted to 4 inches. Backfilling was monitored and density test performed by DDOT soils Technician, Patel and results were found to be within the required specifications. Placed 12 inches depth of GAB material in two 6 inches compacted lifts in proposed full depth pavement section on SB, DDOT Soils Technician, Patel performed compaction tests on GAB placed and material was found to be adequately compacted. Placed 12 inches depth of base asphalt BM-25 in three 4 inches compacted lifts in proposed full depth pavement section on SB-295 approximately from sta. 23+60 to 24+80, right of the baseline. The subcontractor received 95.16 tons of BM-25, placed 91.53 ton and returned 4.23 tons. 

 

09/21/19: No work - Contractor not on site 

Sunday, September 8 – Saturday, September 14

09/09/19: Contractor chipped concrete behind the extrusion joint cut and cut & re-welded gusset plates on newly installed modular unit 7-2 on bridge 1016 and modular units 4-1, 5-1 and 5-2 on bridge 1017 at the pier joint extrusion. The contractor’s superintendent was notified that the precast modular unit must not be altered without proper review and approval from EOR. NCR 007 was issued for this deficiency. Drilled holes on the beam seats on Bridges 1016 and 107 abutments and pier caps for installation of anchor bolts on girders G, H, I, J, K, L, M and N. Continued the demolition of existing asphalt pavement on the approaches on bridges NB-295 bridge 1016 and SB-295 bridge 1017 for proposed full depth pavement. Continued the forming of closure joints between modular units 3-1 through 5-1 and 3-2 through 5-2 on SB-295, bridge 1017. 

09/10/19: Contractor continued the forming of closure joints between modular units 3-1 and 5-1, and 3-2 and 5-2 on SB-295, bridge 1017. Continued the drilling of holes on the beam seats on Bridges 1016 and 1017 abutments and pier caps for installation of anchor bolts on girders G, H, I, J, K, L, M and N. Installed 31 LF (3-8 ft joint and 1- 7 ft section) of 15” diameter RCP to complete pipe run between manhole str. M-2 and M-1 on SB-295 approximately between Stas. 21+20 and 21+51. The crew also set the base unit of manhole Str. M-1 on SB-295, Sta. 21+20, right of the baseline. Started working on deck extension slab on Bridge 1016 abutments A and B on NB-295. 

09/11/19: Contractor placed aggregates bedding material and installed the base unit of structure I-1 (Single Grate Type Catch Basin Field Inlet) on SB-295 approximately at sta. 21+09, right of the baseline. The crew then installed 18 LF (2-8 ft. joint and 1- 2 ft. section) of 15 inches diameter RC connect pipe between structures M-1 to I-1 on SB-295 approximately between sta. 21+09 to 21+20, right of the baseline. Installed forms for deck extension slab on NB-295, Bridge 1016 abutments A and B, left of the baseline. Continued drilling holes on the beam seats on bridges 1016 and 1017 abutments and pier caps for anchor bolts installation on the girders G, H, I, J, K, L, M and N. Completed the forming of closure joint between modular units 6-1 through 8-1 and 6-2 through 8-2.Installed diaphragms on bridge 1016 abutment A. 

09/12/19: No work - Contractor not on site 

09/13/19: No work - Contractor not on site 

 

09/14/19: No work - Contractor not on site 

Sunday, September 1 – Saturday, September 7

09/02/19: No work - Labor Day holiday. 

09/03/19: Contractor set forms on NB-295, Bridge 1016 Abutment A approach slab. 

Completed the installation of rebars and forms on SB-295, Bridge 1017, Abutment B approach slab, right of the baseline and NB-295 Bridge 1016 Abutment B approach slab, left of the baseline. Placed 34.0 cubic yards of Class A at SB-295, Bridge 1017, Abutment B approach slab. 

09/04/19: Contractor set forms on NB-295, Bridge 1016 and 1017 Abutment A, Approach slab. Performed preparation for the crane pads on South Capitol St. between Bridges 1016 and 1017 for modular units’ installation. Installed reinforcing steel on SB-295, Bridge 1017, Abutments A, approach slab. 

09/05/19: Contractor set forms on NB-295, Bridge 1016 Abutment A, approach slab, left of the baseline. Completed the installation of rebars and forms on SB-295, Bridge 1017, Abutment A, approach slab. Placed 19.0 cubic yards of Class A at SB-295, Bridge 1017, Abutment A, approach slab. Installed reinforcing steel on NB-295, Bridge 1016, Abutments A approach slab. Installed under bridge light luminaires UB-1, UB-2, UB-5 and UB-6 on the inside face of bridges 1017 and 1016 abutment B stemwall. 

09/06/19: Contractor completed the installation of rebars and forms on NB-295, Bridge 1016, Abutment A, approach slab. Placed 20.0 cubic yards of Class A, NB-295, Bridge 1016, Abutment A, approach slab Installed junction boxes (12” x 12” x 6”) JB-1 and JB-2 on the inside face of Bridge 1017 Abutment B, backwall. Installed 20 ft of 2” diameter metal conduits from JB-1 towards JB-1. The crew installed under bridge light luminaires UB-7, UB-8, UB-11 and UB-12 on the inside face of Bridges 1017 and 1016 Abutment A stemwalls. Mobilized 550 Tons crane for the installation of bridge deck modular units on NB-295 and SB-295 Bridges 1016 and 107 respectively. The crew started to assemble the crane at 10:30 pm and completed at 1:00 am. A total of 110 tons of counterweights were added on the crane.

 

09/07/19: No work.

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