Speculation!
I don't know for sure, but I doubt it! The "Dragon's Jaw had been bulls-eyed many times by weapons up to & including 2000#ers. Mostly left just blast marks on road/rail beds and cratered approaches. TOUGH structure, built by the French after WWII.
Vance was a great Shrike shooter & Walleye bomber, neither would have been effective on the TH Bridge itself. The Walleye was expensive, precision, but a glide weapon without the punch of rocket power. They were saved for high-value targets w/ good contrast aim points (could fly it through a power plant window and often did). That, and waxing revetted MIGs at Phuc Yen & Kep airbases at Hanoi. Those, and some very successful Iron Hand (Shrike) missions in the Hanoi/Haiphong area were DFC, some SS, a few NC, & 1 MOH material (depending mostly on enemy opposition, Pilot injuries & solid BDA. I would guess that Vance earned the bulk of his valor awards on such missions.
I scored a number of span hits on the THB with Bullpup-Bs (750#) in '66, & Bullpup-Cs (2000#) in '67, with little or no apparent structural damage and Strike Ops gave up on that, saving for somewhat less sturdy targets.
*T-nail: BzB preflighting "big" Bullpip prior to mission striking a Hanoi Hwy/RR bridge, dumped center span on da sucker.. . We lost Squadronmate LT MiKe McGrath on a bomb run there in July '67. He was a POW and luckily returned to us as CDR in '73, commanded A-7 Sqdn VA-97, and retired as a CAPT.
arty_125
Remember, this is just 'educated' speculation, but probably fairly accurate! Sorry, bloated response to a simple 3-word question. If any of you 'Kids" find this ancient history boring, please PM me and I will gladly cease beating up my badly arthritic fingers, when you are interested, I really don't mind! :yuck_125:
*BrownShoe, I'll be calling you this weekend! :icon_mi_6
BzB