Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Communication Breakdown; Confusion; Troubleshooting; Situational Awareness
Deviation / Discrepancy - Procedural Clearance; Ground Incursion Taxiway
Flight Crew Became Reoriented
Procedure; Environment - Non Weather Related; Chart Or Publication; Airport
The Captain and I were unfamiliar with this airfield so we reviewed the Jeppesen charts and NOTAM's in detail prior to departing. After landing and then turning into the Mobile Downtown ramp on Taxiway H; we noticed several GA aircraft and barriers in the area where the chart shows a left turn in the ramp. In addition; there is a taxi line that continues straight where the chart depicts the left turn. This taxi line is not depicted on the Jeppsen chart so we assumed it was the temporary taxi line mentioned in the Company NOTAM. After proceeding on that taxi line; we questioned whether this was correct and the Captain stopped aircraft. We called the company ramp and the individual said he would call the contractor. Ground personnel drove out to the aircraft; placed chocks under the wheels; and we shut down. After deplaning; we asked the Contractors if we were supposed to turn left earlier and they said yes. They also said this has happened numerous times previously.Unfamiliarity with the ramp combined with the construction; barriers in the area the chart depicts a left turn; and an actual taxi line that is not depicted on our charts led to our mistaking that taxi line for the one mentioned in the NOTAMS.
We had reviewed everything thoroughly. Upon entering the ramp; we noticed small airplanes and construction barriers in the area where a left turn is shown on the chart. There is an actual taxiline that proceeds straight and we followed that line; believing it was the temp taxilane from the NOTAMS. I stopped the aircraft when I questioned if this was the correct route. The First Officer contacted the ramp and they called the contractor who chocked the wheels. I shutdown and they brought stairs over. After leaving the aircraft; we asked if we should have turned and the contractor said yes; but this has happened many times before.A lot of construction combined with incorrect chart depiction and confusing NOTAMS.
Air carrier flight crew reported BFM airport has temporary taxiway lines that do not match the Jeppesen Chart or NOTAMs.