4L Elevated Corridor and at-grade improvements from Design Ch:0+000 to Design Ch: 19+870 of Danapur – Bihta Section, Design Ch:0+000 to Design Ch:0+231 connecting the existing RoB near Danapur station ,1.35 Km ramps and at-grade improvements to 4-lane section on Danapur side and Upgradation of existing Two lane carriageway to Four Lane carriageway from Design Ch:19+870 to Design Ch:23+500 of Bihta - Koilwar section
Physical Progress
63.5%
Drone-monitored
Financial Progress
66.3%
Of awarded cost
Awarded Cost
₹1969 Cr
Contract value
Length
25.081 km
Road stretch
Schedule
On Track
On schedule
Drone Frames
2284
Aerial captures
Project Progress
Stage
Under Construction (AD issued)
Due Date
08-09-2026
Likely Date
31-08-2027
Completion
63.5%
Physical Done
Project Timeline
Awarded
11-03-2024
Construction Started
11-03-2024
In Progress
Near Completion
-
Completed
31-08-2027
Physical vs Financial Progress
Project Details
UPC
N/08067/01002/BR
National Highway
922
Regional Office
RO-Patna
State
Bihar
Mode
EPC
Length
25.081 km
Contractor
Ceigall India Limited-YFC Projects Private Limited JV
Project Stage
Under Construction (AD issued)
Drone Frames
2284 frames
Last Flight
2026-08-26
Cost & Timeline
Awarded Cost
₹1969.00 Cr
Capital Cost
₹4432.97 Cr
Start Date
11-03-2024
PCOD Date
-
Scheduled Completion
08-09-2026
Likely Completion
31-08-2027
Schedule Status
On schedule
Slippage Days
N/A
Data Updated
2026-09-13 18:53:43
Contractor Profile
Ceigall India Limited-YFC Projects Private Limited JV
Project Intelligence
Project is more than halfway complete at 63.5% physical progress.
Project is on schedule or ahead of planned completion date.
Covers 25.081 km on 922, improving regional connectivity.
2284 drone frames uploaded — real-time aerial monitoring is active for this project.
4L Elevated Corridor and at-grade improvements from Design Ch:0+000 to Design Ch: 19+870 of Danapur – Bihta Section, Design Ch:0+000 to Design Ch:0+231 connecting the existing RoB near Danapur station ,1.35 Km ramps and at-grade improvements to 4-lane section on Danapur side and Upgradation of existing Two lane carriageway to Four Lane carriageway from Design Ch:19+870 to Design Ch:23+500 of Bihta - Koilwar section is a National Highways Authority of India (NHAI) project on 922 in Bihar. The project has an awarded cost of ₹1969.00 Cr and is currently ongoing with physical progress at 63.5%.
NHAI tracks physical progress on this project through periodic drone surveys, providing an independent view of on-ground construction status. Other projects on the same highway are listed below.
Drone Imagery Available
2,284 frames · NHAI surveillance footage · UPC N/08067/01002/BR
Frequently Asked Questions
- QWhat is the current status of the NHAI project "4L Elevated Corridor and at-grade improvements from Design Ch:0+000 to Design Ch"?
- Current physical progress: 63.5%. Financial progress: 66.3%. Project stage: Under Construction (AD issued). On schedule. Scheduled completion: 08-09-2026. Likely completion: 31-08-2027.
- QWho is the contractor for this NHAI highway project?
- The contractor for 4L Elevated Corridor and at-grade improvements from Design Ch:0+000 to Design Ch: 19+870 of Danapur – Bihta Section, Design Ch:0+000 to Design Ch:0+231 connecting the existing RoB near Danapur station ,1.35 Km ramps and at-grade improvements to 4-lane section on Danapur side and Upgradation of existing Two lane carriageway to Four Lane carriageway from Design Ch:19+870 to Design Ch:23+500 of Bihta - Koilwar section is Ceigall India Limited-YFC Projects Private Limited JV. The project is under RO-Patna and covers 25.081 km on 922.
- QWhat is the cost of this NHAI highway project?
- The awarded cost is ₹1969.00 Crore. Total capital cost: ₹4432.97 Crore. The project is on 922 in Bihar, monitored via drone surveillance by NHAI.
- QWhat is UPC N/08067/01002/BR in NHAI?
- UPC (Unique Project Code) N/08067/01002/BR refers to "4L Elevated Corridor and at-grade improvements from Design Ch:0+000 to Design Ch: 19+870 of Danapur – Bihta Section, Design Ch:0+000 to Design Ch:0+231 connecting the existing RoB near Danapur station ,1.35 Km ramps and at-grade improvements to 4-lane section on Danapur side and Upgradation of existing Two lane carriageway to Four Lane carriageway from Design Ch:19+870 to Design Ch:23+500 of Bihta - Koilwar section" — a National Highway project on 922 in Bihar. NHAI uses UPCs to track drone monitoring progress and physical completion of highway construction.