Texas Transport portalArchitecture portalThis category is for bridges completed in the year 1780 17751776177717781779178017821784178517861787 1730s1740s1750s1760s1770s1780s1790s1800s1810s1820s1830s Pages in category "Bridges completed in 1780" This category contains only the following page. This list may not reflect recent changes. D Drygrange Old Bridge