Narrative:

During taxi to runway 5, just after crossing runway 30, I found a very unusual hold short situation. We were cleared to taxi to runway 5, but just past runway 30, the hold short lines for a taxiway exiting runway 5/23 project 1/2 way into taxiway C. One risks going off the taxiway trying to avoid the obstruction or crossing onto the active runway (on the taxiway?). Some procedure should be used to avoid confusion here, like widening the taxiway or posting a sign to call tower to cross. In a low visibility situation, the paint on the taxiway could easily be missed. Callback conversation with reporter revealed the following information: reporter states the taxiway is actually taxiway B after it crosses runway 12/30. Just a short distance beyond the intersection is where these strange hold short lines are located. They are angled onto the taxiway but do not cross it completely. There are ILS hold short lines further down the taxiway, closer to the beginning of runway 5. There are no signs indicating the reason for these unusual hold lines and it is very confusing. These lines would not even have been visible in any WX situation. Reporter feels the purpose of these lines should be put forth in a NOTAM or some signage to let pilots know.

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Original NASA ASRS Text

Title: FLC OF SF340 SIGHTS AN UNUSUAL HOLD LINE WHICH ANGLES ONTO THE TXWY, BUT DOES NOT CROSS THE TXWY. THERE ARE HOLD LINES FURTHER DOWN THE TXWY (CLOSER TO THE BEGINNING OF THE RWY) SO IT IS VERY CONFUSING.

Narrative: DURING TAXI TO RWY 5, JUST AFTER XING RWY 30, I FOUND A VERY UNUSUAL HOLD SHORT SIT. WE WERE CLRED TO TAXI TO RWY 5, BUT JUST PAST RWY 30, THE HOLD SHORT LINES FOR A TXWY EXITING RWY 5/23 PROJECT 1/2 WAY INTO TXWY C. ONE RISKS GOING OFF THE TXWY TRYING TO AVOID THE OBSTRUCTION OR XING ONTO THE ACTIVE RWY (ON THE TXWY?). SOME PROC SHOULD BE USED TO AVOID CONFUSION HERE, LIKE WIDENING THE TXWY OR POSTING A SIGN TO CALL TWR TO CROSS. IN A LOW VISIBILITY SIT, THE PAINT ON THE TXWY COULD EASILY BE MISSED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES THE TXWY IS ACTUALLY TXWY B AFTER IT CROSSES RWY 12/30. JUST A SHORT DISTANCE BEYOND THE INTXN IS WHERE THESE STRANGE HOLD SHORT LINES ARE LOCATED. THEY ARE ANGLED ONTO THE TXWY BUT DO NOT CROSS IT COMPLETELY. THERE ARE ILS HOLD SHORT LINES FURTHER DOWN THE TXWY, CLOSER TO THE BEGINNING OF RWY 5. THERE ARE NO SIGNS INDICATING THE REASON FOR THESE UNUSUAL HOLD LINES AND IT IS VERY CONFUSING. THESE LINES WOULD NOT EVEN HAVE BEEN VISIBLE IN ANY WX SIT. RPTR FEELS THE PURPOSE OF THESE LINES SHOULD BE PUT FORTH IN A NOTAM OR SOME SIGNAGE TO LET PLTS KNOW.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.