Project 16:

Consultancy Services for Feasibility Study and Preparation of Detailed Design for 6 lanes divided carriageway configuration for proposed Ranchi Ring Road in the State of Jharkhand, Length- 120 Kms, India


It is a multimillion-Rupee, fast track, probably the largest road design project in India. There are 3 national highways no. 33, 75, 23 which pass through Ranchi town, the intensity of traffic has increased significantly on these & also within Ranchi town and as such there is requirement of augmentation capacity for safe and efficient movement of traffic. The project involves development of a 6-lane Ring Road around Ranchi town to cater for this traffic. The total project length is approx 120 kms, 40 kms of these are existing roads that can be utilized as the proposed alignment and the remaining 80 kms are on a new alignment. It consists of 9 Major bridges, 31 Minor bridges, 3 ROB's, 1 RUB, 7 flyovers/interchanges, 8 Elevated Cross roads and 26 Underpasses. The proposed superstructure types for Bridges are PSC box, PSC Voided slab, RCC solid slab, RCC beam and slab, for ROB- PSC solid slabs, for flyovers/interchanges- PSC box, PSC Voided slab, RCC solid slab, RCC beam and slab. Economic analysis will be carried to check its viability on a build, operate and transfer basis. It is a very challenging project one of the challenges on the project is the tight schedule; the project is to be completed in 15 months with 3 months for design and 12 months for construction. The other challenge is finalization of the alignment in quick time as the terrain is rolling and there are many river/river tributaries crossing the alignment.Some of the bridges are:

Sr. No. Bridge ( Name ) Bridge Type Span Arrangement Total Length
1 Karma Vikas Flyover at chainage PSC Box Girder (38.0)+PSC Voided Slab (22.2) 22.20+38+22.20 682.45 m
2 Purulia Road Flyover RCC Solid Slab Contineous 3 * 22.20 666.65 m
3 Rampur (Sidraul) Flyover PSC Box Girder (38.0)+PSC Voided Slab (22.2) 22.20+38+22.20 682.45 m
4 Tipudana (Chaibasa Road) Flyover PSC Voided Slab (22.2) 3 * 22.20 666.65 m
5 Lalgutua Flyover PSC Box Girder (38.0)+PSC Voided Slab (22.2) 22.20+38+22.20 682.45 m
6 Kathitar Flyover PSC Box Girder (38.0)+PSC Voided Slab (22.2) 22.20+38+22.20 682.45 m
7 Kanke (Pithuria Road) Flyover PSC Voided Slab (22.2) 3 * 22.20 666.65 m
8 ROB Pre-Tensioned, Pre-Cast Girder With Cast in Situ RCC Slab 1 * 23.8 623.90 m
9 ROB Pre-Tensioned, Pre-Cast Girder With Cast in Situ RCC Slab 1 * 23.8 623.90 m
10 ROB

Pre-Tensioned, Pre-Cast Girder With Cast in Situ RCC Slab

1 * 23.8 623.90 m
11 ROB Pre-Tensioned, Pre-Cast Girder With Cast in Situ RCC Slab 1 * 23.8 623.90 m
12 RUB PSC Box Girder 1 * 32.5 632.6 m
13 Minor Bridge RCC Beam And Slab 2 * 16.6 33.24 m
14 Suvarnarekha River Bridge PSC Box Girder 4 * 38 152.05 m
15 Major Bridge RCC Beam And Slab 5 * 16.6 83.04 m
16 Minor Bridge RCC Solid Slab 1 x 10 10.04 m
17 Sapahi River Bridge PSC Voided Slab 4 x 22.2 88.85 m
18 Suvarnarekha River Bridge PSC Voided Slab 4 x 22.20 88.85 m
19 Tundhul River Bridge cum Underpass RCC Beam And Slab 4 x 16.6 66.44 m
20 Tundhal River Bridge PSC Voided Slab 3 x 22.20 66.65 m
21 Potpoto River Bridge PSC Voided Slab 3 x 22.2 111.05 m
22 Cherry Nallah Bridge RCC Beam And Slab 2 x 16.6 33.24 m
23 Jumar River Bridge PSC Box Girder 3 x 38 114.05 m
24 Jumar Tributary Bridge RCC Beam And Slab 3 x 16.6 49.84 m
25 Par Nallah Bridge RCC Beam And Slab 2 x 16.6 33.24 m
26 Rendu Nallah Bridge RCC Beam And Slab 2 x 16.6 33.24 m
27 Bridge Cum Flyover PSC Voided Slab 1x 22.20 (Bridge) + 1x 22.20 (Flyover) 22.25 m

Project 17:


Independent Engineers Services for Rehabilitation and Up gradation from Km 28/0 to Km 67/0 and 4-laning of existing 2-lane road from Chengalpattu to Tindivanam (from Km 67/0 to km 121/0) including Strengthening and Up-gradation of existing two lanes from Tambaram- Tindivanam section of NH-45 under Build-Operate and Transfer (BOT) on Annuity basis, Tamil Nadu, India
NH-45 (popularly known as GST Road) is one of the important National Highways, which connects Chennai, the Capital City of Tamil Nadu with the southern districts of the State, including major towns such as Tiruchi, Madurai, etc. This National Highway has been entrusted to National Highways Authority of India (NHAI) for development and maintenance. NHAI has taken up the project road from km 28/0 (starting from Tambaram at the outskirts of Chennai City) to km 121/0 (Tindivanam Junction) for development under the Annuity Scheme. Total length of the project road is 93 kms. Out the above, Tambaram- Chengalpattu section from Km 28/0 to Km 67/0 has already been 4-laned and the remaining section from Km 67/0 (Chengalpattu) to Km 121/0 ( Tindivanam) is presently 2-lane road.The project work involves strengthening of the existing 4-lane section from Tambaram to Chengalpattu (from Km 28/0 to Km 67/0) and 4-laning of existing 2-lane road from Chengalpattu to Tindivanam (from Km 67/0 to km 121/0).Some of the bridges are:

Sr. No. Bridge (Name) Bridge Type Span Arrangement Total Length
1 Nandivaram Bridge RCC Solid Slab 1*8.6 8.62 m
2 Thailvaram bridge RCC Solid Slab 1*8.6 8.62 m
3 Minor bridge RCC Solid slab 7+7.4+7 21.42 m
4 Minor bridge RCC T beam+ RCC Solid slab 25+7.5 Skew Bridge 32.55 m
5 Minor bridge RCC Solid slab 9+7.5+9 Skew Bridge 25.53 m
6 Kolavai Tank Bridge RCC T beam+ RCC Solid slab 5*12 Skew Bridge 60.03 m
7 Minor bridge RCC T beam+ RCC Solid slab 1*18.9 18.92 m
8 Palar RiverBridge PSC T beam+ RCC Solid slab 23*29.5 678.55
9 Kattu Odai Bridge RCC Solid Slab 1*8.6 8.62 m
10 Kalliar RCC Solid Slab 10.9+14*11+10.9 175.80 m
11 Maduran Tangan Bund Supply Channel RCC Solid Slab 2*8.4 Skew bridge 16.8 m
12 Omahatki Temple Subway RCC Solid Slab 1*7.04 7.04 m
13 Minor Bridge RCC Solid Slab 4*11.5 46 m
14 Chunambedu Bridge RCC T beam+ RCC Solid slab 13.1+2*13+13.1 52.2 m
15 Ongur River RCC T beam+ RCC Solid slab 4*13 52

Project 18:


Independent Consultancy Services for improvement Works of Ranchi Patraru Ramgarh Road by widening the existing 1/2-lanes to 4/2-lanes dual carriageway, on BOT (Annuity) basis length-62.40 KMs ( 4 lane- 43.72 & 2 Lane- 18.68) , India
The Govt. of Jharkhand (GOJ) is contemplating to enhance the traffic capacity and safety for efficient transportation of goods as well as passenger traffic on the heavily trafficked Project Highway sections. The Project aims at developing Ranchi Patratu Dam Ramgarh Road by widening the existing 1/2-lanes to 4/2-lanes dual carriageway, on BOT (Annuity) basis. Total Length of the project is 62.40 KMs out of which the existing 1/2 road is proposed to be 4 laned for 43.72 Kms & 2 Laned for 18.68 Kms.

Sr. No. Bridge (Name) Total Length
1 Mossagram km 591.901 250.24m,
2 Jougram km 598.771 300m
3 Gurap km 606,006, 440.569m
4 Maheshapur km617,503 500m
5 Bora km 638.349, 232.894m