This document summarizes an 18 km approach road project in Digha Ghat, Patna, Bihar, India. The project connects National Highways NH-98 and NH-19. Key details include the 262.13 crore rupee budget, October 2013 start date, October 2015 planned completion date, and construction by MBL Infrastructures Ltd. The document further describes the road construction process including earthwork, granular sub-base, wet mix macadam, bituminous macadam, bituminous concrete layers, and camber and kerb installation.

1. PRESENTED BY:-
KUNAL KUMAR
AT
DIGHA GHAT ,PATNA

2. INTRODUCTION
 Type of Road :: Public Road
 Project Name :: Approach Road of Rail-Cum-Road
Bridge
 Length :: 18 km
 Location :: DIGHA GHAT ,PATNA

3. Project Detail
 Project Name:- Approach Road of NH -98 and NH -19
 Client:- National Highways Authority of India
 Type :- Public (Central &Bihar Government )
 Notice / Contract no : - ept:5949374
 Opening date of tender : - 08/25/2011
 Document fee : - 50000 /-
 Tender value :- 2621300000 /-
 ECC contractor:- MBL Infrastructures Ltd.
 MEP consultants:- Design Bureau
 Length: - 18 km.
 Date of project start:- Oct 2013
 Date of Project finish:- Oct 2015

4. Site-1 Detail Country :- India
 State :- Bihar
 Location:- Digha Ghat, Patna
 Coordinates : - 25 * 40’ 7” N; 85* 6’ 31” E
 Elevation :- 53 meter
 Average PPT :- 101.93 cm
 Average Rainfall :- 121.3302 cm
 Avg. Rainfall in (Rainy days):- 141.986 cm

5. Site-2 Detail
 Country :- India
 State :- Bihar
 Location:- Pahaleja Ghat, Chhapra
 Coordinates : - 25 * 41’ 49” N; 85* 10’ 20” E
 Elevation :- 56 meter
 Average PPT :- 103.93 cm
 Average Rainfall :- 117.39 cm
 Avg. Rainfall in (Rainy days):- 137.41 cm

6. Project Map
NH-19
5km+703m
pahaleja Ghat chhapara
Digha Ghat Patna
12km+343m
NH-98

7. What is Road ?
 Roads are defined as routes or paths that begin at
one destination and lead to another.

8. Cross-Section of Road

10. CARRIAGEWAY
PAVEMENT
CAMBER & KERB
SHOULDER
SIDEWALKS/FOOTPATH
ROADWAY CONSTRUCTION

11. CARRIAGEWAY
The part of a road used by vehicular
traffic is called carriageway.

12. LAYERS OF CARRIAGEWAY
EARTH WORK
GRANULAR SUB BASE(GSB)
WET MIX MACADAM(WMM)
BITUMINOUS MACADAM(BM)
BITUMINOUS CONCRETE(BC)
TACK COAT

13. EARTH WORK
 SOIL FILLING
Total volume of soil filling=367421 cubic meter
 SPREADING & LEVELING
 COMPACTION

14. GRANULAR SUB BASE
 MATERIAL
 LAYERS
 DEPTH
 COMPACTION

15. Sub Base Layer

16. It is a road base material
consisting of crushed rock/slag
usually premixed with controlled
amount of water sufficient for
adequate compaction.

17. BITUMINOUS MACADAM
> Bituminous macadam consists of
aggregate and appropriate binder, mixed in a
hot mix plant and laid with a mechanized
paver.
> It is an open graded mixture suitable
for base course and is laid in a single course
or in multiple layers on a previously prepared
base.
> Grade of Bitumen is S-65

18. FINISHING OF SURFACE(ROLLING)

19. BITUMINUS CONCRETE
 MATERIAL
 MIXING
 SPREADING

20. Pavement

21. CAMBER
 PERCENTAGE OF CAMBER- 2%
 PURPOSE OF CAMBER
A slight downward curve from the middle to the
sides of a surface (such as a road)

22. KERB
KERB
A line of stone or concrete forming an edge
between a pavement and a roadway, so that the
pavement is some 15 cm above the level of the road.

23. SHOULDER
It is the side of the road. Sometimes it is paved.
Sometimes it is gravel. Sometimes it is dirt or grass.
Width of Shoulder = 2m

24. THANK YOU