If you begin in St. Louis and intend to drive any great distance (or any moderate distance) you will find it necessary to cross at least one river. Depending on direction and distance, you may cross more than one — or the same river more than once.
Today we’re going to focus on driving southwest from the heart of the city. The first sizable (except during flood) river you will encounter is the Meramec. The first time you cross it on Interstate 44 or a state highway running roughly parallel, the river is flowing south — perhaps a few degrees to the southeast.
Less than ten miles later, Interstate 44 crosses the Meramec River again — where it flows north. Like most rivers, perhaps a little more than average, the river changes direction several times as it wanders from the source to the Mississippi River.
This is a crossing where a steel truss bridge with oak floor planks spanned the water in 1900. In 1932, a new bridge, to carry the traffic for the new US Highway 66 replaced the previous. When the Interstate was construction, a new bridge, a little south (upstream) was completed. The old (second) bridge continued to serve local traffic until 2009. At that time, the decking was removed in an effort to lighten the load on the steel trusses and wait for funds to restore the structure which now lies within a State Park.
A trace of Bridge #1 remains with the pair of footings visible at low water. Bridge #2 — deckless — is in the foreground while Bridge #3 carries the traffic from St. Louis to points southwest such as Rolla and Springfield in Missouri, Tulsa, OK and beyond.