Covered Bridges
There are no records
of the men who built Maine's covered bridges. Available town documents
show that the chief concern of the thrifty citizens at town meetings
was the amount of money their new bridge was to cost - which was
entered to the last odd cent - and a brief line or two about its
manner of construction. In the case of the Lovejoy
Bridge, it was recorded that it is "... to be built
of square-sawn spruce, and of the Paddleford plan, at about a cost
of $743.47" .
Typically, covered bridges were put together
by local builders, and like Maine-built ships, the skillful construction
that went into them was more a matter of instinctive craftsmanship
than engineering training. The designs used were those of professional
bridge builders - Palmer, Burr, Town, Long and Howe - who held
patents on different types of trusses. Their ideas went back to
ancient principles.
The first bridge across the Kennebec
River at Augusta was a Palmer design; an open structure put up
by a private company when Maine was still a district of Massachusetts.
The covered bridge, which replaced it in 1819, is thought to be
the first of its kind in the state. The last-built covered bridge
which still survives is the Watson Settlement
Bridge, built in 1911 in Littleton.
The two longest covered bridges in Maine, no longer in existence,
were the Bangor-Brewer Bridge, a 792 foot structure across the
Penobscot River built in 1846 at a cost of $60,000.; and the bridge
at Norridgewock, a 600 foot structure across the Kennebec River.
According to one historian of covered bridges, the double-barreled
Stillwater Bridge near Orono was the last two-lane Town lattice
truss covered bridge in the United States. (It was replaced in
1951.)
Two of the remaining covered bridges in Maine use a Long truss
- Lowes Bridge and Robyville
Bridge. Three use a Howe truss - Morse (no
longer in existance), Watson Settlement and Babbs. The
other five are of Paddleford construction (a modified Long truss)
- Lovejoy, Hemlock, Bennett, Sunday River and Porter-Parsonsfield. Two of these, Hemlock and Porter-Parsonsfield,
are strengthened with laminated wooden arches.
In several cases, modern steel and concrete structures have been
built nearby to serve the traffic formerly carried by the covered
bridges. These by-passed wooden structures have been "retired" to
pass their final days as picturesque symbols of the Yankee ingenuity
and skill of the early bridge builders of Maine. Several other
bridges have been ingeniously reinforced to allow continued use
by vehicles, thereby maintaining the authentic character of the
bridge's environment. This reinforcement has required only minor
alterations to the floor systems and is obvious only to the most
avid bridge enthusiast.
In 1956 the Little Black River Covered Bridge in Allagash Plantation
was the last wooden covered bridge to be deliberately removed to
make room for a modern steel and concrete bridge.
In 1985 the 112th Maine legislature took its latest steps providing
authority to the Department of Transportation to maintain and preserve
historic bridges having a unique design.
|