David Pirmann:
US MD Frederick Co - Roddy Road Bridge WGCB 20-01-02 no. 1
David Pirmann:
US MD Frederick Co - Roddy Road Bridge WGCB 20-01-02 no. 1
David Pirmann:
US MD Frederick Co - Roddy Road Bridge WGCB 20-01-02 no. 1
David Pirmann:
US MD Frederick Co - Loys Station Bridge WGCB 20-10-03 no. 1
David Pirmann:
US MD Frederick Co - Loys Station Bridge WGCB 20-10-03 no. 1
David Pirmann:
US MD Frederick Co - Loys Station Bridge WGCB 20-10-03 no. 1
David Pirmann:
US MD Frederick Co - Loys Station Bridge WGCB 20-10-03 no. 1
David Pirmann:
US MD Frederick Co - Utica Mills Bridge WGCB 20-01-01
David Pirmann:
US MD Baltimore County - Loch Raven Reservoir - Paper Mill Road Bridge (1920s) - out of use
David Pirmann:
US MD Baltimore County - Loch Raven Reservoir - old Paper Mill Road Bridge (dewired version)
David Pirmann:
US MD Baltimore County - Loch Raven Reservoir - Paper Mill Road Bridge (out of use)
David Pirmann:
US MD Baltimore County - Jericho Road Covered Bridge - Little Gunpowder Falls - WGCB MD-03-02/MD-12-01
David Pirmann:
US MD Baltimore County - Jericho Road Covered Bridge - Little Gunpowder Falls - WGCB MD-03-02/MD-12-01
David Pirmann:
US MD Baltimore County - Franklinville Rd Bridge (Vinegar Hill Road) - Little Gunpowder Falls
David Pirmann:
US MD Baltimore County - Franklinville Rd Bridge (Vinegar Hill Road) - Little Gunpowder Falls
David Pirmann:
US MD Baltimore County - Loch Raven Reservoir - Warren Road Bridge
David Pirmann:
US MD Baltimore County - Carroll Branch ( -> Big Gunpowder Falls) - Carroll Road Bridge
David Pirmann:
US MD Baltimore County - Big Gunpowder Falls - Sparks Road Bridge
David Pirmann:
US MD Baltimore County - Big Gunpowder Falls - Sparks Road Bridge
David Pirmann:
US MD Baltimore County - Prettyboy Reservoir - Beckleysville Road Bridge
David Pirmann:
US MD Baltimore County - Prettyboy Reservoir - Beckleysville Rd Bridge
David Pirmann:
US MD Baltimore County - Little Gunpowder Falls - Bottom Road Bridge
David Pirmann:
US MD Baltimore County - Little Gunpowder Falls - Bottom Road Bridge
David Pirmann:
US MD Baltimore County - Loch Raven Reservoir - Warren Road Bridge
David Pirmann:
US MD Baltimore County - Gunpowder Falls - Falls Road Bridge
David Pirmann:
US MD Baltimore County - Gunpowder Falls - Falls Road Bridge
David Pirmann:
US MD Baltimore County - Gunpowder Falls - Falls Road Bridge
David Pirmann:
US MD Baltimore County - Gunpowder Falls - Masemore Road Bridge
David Pirmann:
US MD Baltimore County - Gunpowder Falls - Masemore Road Bridge
David Pirmann:
US MD Baltimore County - Cuba Road Bridge - Western Run
