(All B. & O. works listed were designed by Bollman and built by the
railroad, unless otherwise indicated.)
Dates of Location Type No. spans Remarks
service / length
of each
1850-? Savage, Md., Little Bollman 1/76' First Bollman truss
Patuxent River through erected; granite towers;
truss cost, $23,825. B. & O. RR.
1851-? Bladensburg, Md., Bollman 1/? Second Bollman truss
Anacostia River through erected; granite towers;
truss cost, $19,430. B. & O. RR.
1851-1862 Harpers Ferry, Va., Bollman 1/124' Winchester span; first
Potomac River through major Bollman truss; three
truss lines of truss; granite
towers; blown up by
Confederate Army on
September 24, 1862.
B. & O. RR.
1851-? Baltimore, Md., Trestle -- Wood trestle bents with
Carey Street wrought-iron diagonals.
First use of iron
structural members in
trestlework. Total length
76 feet. B. & O. RR.
1852- Savage, Md., Little Bollman 2/±80' Still standing. Moved to
Patuxent River through Savage in 1888; original
truss location unknown. This and
succeeding Bollman trusses
use iron towers. B. & O.
RR.
1852 (or Marriottsville, Bollman 1/50' One of first Bollman
1853)-? Md., Patapsco River truss trusses with iron towers.
B. & O. RR.
1853-? Zanesville, Ohio, Bollman 4/124' Double track, Central Ohio
Muskingum River truss (or RR. Designed by Bollman;
5/160') built by Douglas, Smith &
Co., Zanesville.
1854- Elysville (now Bollman 3/97'9" Upper bridge, skew. Cost,
1870(?) Daniels), Md., through $24,477.59. B. & O. RR.
Patapsco River truss
1854-1862 Monocacy, Md., Bollman 3/119' Blown up September 8,
Monocacy River truss 1862; rebuilt in 1864.
Cost, $22,722.59.
B. & O. RR.
1854-? Eastern Ohio Bollman 1/40' C. O. RR. Section 76
truss(?) adjacent to 300-ft.
tunnel.
1855-? Bridgeville, Ohio, Bollman 1/71' C. O. RR.
Salt Creek deck truss
Pre-1855-? Buffalo, N.Y. -- -- Unidentified. Mentioned by
George Vose in Railroad
Advocate (June 9, 1855).
1856-? Elysville, Md., Bollman 3/111' Lower Bridge. B. & O. RR.
about 1-1/4 miles through
east of 1854 truss
bridge, Patapsco
River
Pre-1856-? Marriottsville, Bollman 1/48'9" Referred to as "Tunnel
Md. truss(?) Bridge" in B. & O. RR.
annual report, 1856.
1856-? Near Ijamsville, "Iron 3/23'9" Possibly trussed beams;
Md., Bush Creek girders" mentioned in B. & O. RR.
annual report, 1856.
1856-? Near Ijamsville, "Iron 2/23'9" As above.
Md., Bush Creek girders"
1856- North Branch, Md., Bollman 3/142' Partially destroyed in
c.1862 Potomac River deck truss Civil War. B. & O. RR.
1860-1906 Chile, Angostura Bollman 4/115' Chilean Railways.
River truss(?) Designed and built by
Bollman. Replaced by
bridge built by French
firm of Schneider,
Cruesot & Co.
1860-1910 Chile, Paine River Bollman 1/? As above.
truss(?)
Post- Ilchester, Md., Bollman 1/? B. & O. RR.
1860-? Patapsco River through
truss
Pre-1861-? Cuba Bridges -- All bridges on Havana
and RR., including iron
station station house and bridge
house at Guines. Designed and
built by Bollman.
Pre-1861-? Cuba Bridges -- All bridges on Cienfuegos
RR., Cárdenas RR., and
Havana & Matanzas RR.
Designed and built by
Bollman.
Pre-1861-? Cuba Trestle -- Trestle with wrought-iron
columns (the first such
ever constructed). Havana
RR. Designed and built by
Bollman.
1862-1862 Harpers Ferry, Va., Bollman 2/160' Span no. 3 (July 24) and
Potomac River through span no. 4 (August 21).
truss Blown up September 24,
1862. B. & O. RR.
1862-1936 Harpers Ferry, Va., Bollman 1/160' Span no. 5 (November).
Potomac River through B. & O. RR.
truss
1863-1936 Harpers Ferry, Va., Bollman 3/160' Spans nos. 3, 4, and 5.
Potomac River through Constructed previous to
truss April 1863. B. & O. RR.
1863-? Berwyn, Md., Paint Bollman ? Iron bridge mentioned in
Branch truss(?) B. & O. RR. annual report,
1863.
1863(4?)-? Clinton, Iowa, Pivot 1/360' Built by Detroit Bridge
Mississippi River draw & Iron Works. It was the
longest in the world at
time of completion.
Designed by Bollman.
1864-? Laurel, Md., Bollman ? Replaced stone arch that
Patuxent River truss had been washed out. B. &
O. RR.
c. 1864-? Near Veracruz, Bollman 1/115' Veracruz & Jucaro RR.
Mexico, Medellín through First iron bridge in
River truss Mexico. Designed and
built by Bollman.
1864-? Near Point of Bollman 1/80'(?) Iron bridge mentioned in
Rocks, Md., Back truss(?) B. & O. RR. annual
Creek report, 1864. The span
length given is that of
previous stone arch.
1864-? Bladensburg, Md., Bollman 1/? Span for second track, to
Anacostia River truss match 1851 span. B. & O.
RR.
1868-? Cape Fear, N.C., Bollman 2/146'6" Wilmington Railway Bridge
Northeast Branch, truss(?) 1/164' Co. This bridge was
Cape Fear River pivot connected to that over
draw/150' the Northwest Branch by
2-1/2 miles of timber
trestling. Designed and
built by Bollman.
1868-? Cape Fear, N.C., Bollman 1/217'(?) See above.
Northwest Branch, truss(?) pivot
Cape Fear River draw/150'
1868-? Quincy, Ill., Bollman 4/85' Chicago, Burlington &
Quincy Bay (in deck pivot Quincy RR. The pivot draw
Mississippi River) truss draw/190' was formed of two 85-ft.
simple Bollman deck spans
whose outer ends hung from
hog chains. Designed by
Bollman; built by Detroit
Bridge & Iron Works.
1869- Baltimore, Md., Warren 2/100' North Avenue Bridge.
c.1892 over Jones Falls, truss 2/55'6" Composite double
B. & O. RR., and intersection truss;
Northern Central timber top chord and
RR. posts, wrought-iron lower
chord and ties. In 55-ft.
spans, both chords
timber. Cost, $73,588.
Built by Bollman.
c.1869- Harpers Ferry, Va., Bollman 4/? Canal span (no. 8), Wide
1936 Potomac River through span (no. 2), Winchester
truss span, and West End span.
Destroyed by flood in
1936. B. & O. RR.
1870- Baltimore, Md., Iron 1/108' Charles Street Bridge.
c.1895 Jones Falls "Isometrical Three lines of trussing.
truss" Cost, $20,297. Built by
(probably Bollman.
Pratt type)
1870- Bellaire, Ohio- Bollman 9/107'- In approaches; 2 spans on
1893 & Benwood W. Va., deck 125' Ohio side; 7 on West
1900 Ohio River truss Virginia side. B. & O. RR.
1870- Belpre, Ohio- Bollman 16/? In approaches; 7 spans on
c.1895 Parkersburg, W. deck Ohio side; 9 on West
Va., Ohio River truss Virginia side. B. & O. RR.
1870-? Elysville, Md., Bollman 4/? Skew; replacement of
Patapsco River through Upper Bridge(?). B. & O.
truss RR.
1871- Baltimore, Md., Timber ? Decker Street (now
c.1895 Jones Falls and iron Maryland Avenue) Bridge.
truss Cost, $24,975. Built by
Bollman.
1871- Baltimore, Md., Warren 1/100' North Avenue Bridge.
c.1892 over Northern truss Composite double
Central RR. at intersection truss;
Jones Falls cast-iron top chord and
posts; wrought-iron
bottom chord and ties.
West span. Built by
Bollman.
1873-1923 Cave Station, Va., Bollman 1/98'7" Valley Railroad of
Middle River deck 1/63'5" Virginia (B. & O.) Bridge
truss no. 120. The main span
was a Whipple deck truss.
Replaced with plate
girders. Designed by
Bollman.
1873-1923 Mount Crawford, Bollman 2/98'6" Valley Railroad of
Va., North River deck 1/148'9" Virginia (B. & O.) Bridge
truss no. 117. Designed by
Bollman.
1873-1923 Verona, Va., North Bollman 3/98'7" Valley Railroad of
River deck Virginia (B. & O.) Bridge
truss no. 129. The main span
was a 147-ft. Whipple
deck truss. Designed by
Bollman.
1873-? Wadesville, Va., Bollman 1/147'8" Span length given is that
Opequon Creek through of previous wood span
truss that burned in 1862. B.
& O. RR.
c. 1873- Baltimore, Md. Iron roof ? First Presbyterian
trusses Church. Built by Bollman;
possibly designed by him.
1873- Baltimore, Md. Cast-iron City Hall. Cost, $12,840.
stairs Designed by George A.
Frederick, architect;
built by Bollman.
1873- Baltimore, Md. Cast-iron Dome of the City Hall.
framework Cost, $70,525. Designed
by George A. Frederick;
built by Bollman.
1875- Baltimore, Md., Iron truss 1/? Fayette Street Bridge.
c.1913 Jones Falls Cost, $9,396. Built by
Bollman.
1876- Baltimore, Md., "Single- 1/? Canton Avenue (now Fleet
c.1913 Jones Falls beam iron Street) Bridge. Cost,
bridge" $8,904. Built by Bollman.
(truss?)
1876- Baltimore, Md., "Single- 1/? Eastern Avenue Bridge.
c.1913 Jones Falls beam iron Cost, $12,382. Built by
bridge" Bollman.
(truss?)
1877- Baltimore, Md., Pratt and 1/88'6" Lombard Street Bridge.
Jones Falls bowstring Three lines of truss;
truss two outer trusses,
composite cast- and
wrought-iron polygonal
Pratt type; center
composite bowstring with
Pratt-system web. Both
chords are cast-iron
water mains, bifurcated
at the end bearings;
cast-iron posts and
wrought-iron ties. In
service. Cost, $7,632.
Designed by Jas. Curran,
Baltimore water
department; built by
Bollman.
1877- Baltimore, Md., Iron truss 1/? Bath Street Bridge. Cost,
c.1913 Jones Falls $4,172. Built by Bollman.
1879-? Baltimore, Md. Drawbridge 1/? Over entrance to City
Dock. Cost, $13,182.
Built by Bollman.
1879- Baltimore, Md., Warren 2/173'9" North Street (now
c.1930 over Jones Falls truss Guilford Avenue) Bridge.
and railroad Composite trusses;
tracks cast-iron top chord and
end posts; wrought-iron
bottom chord and web
members. Cost, $38,772.45.
Built by Bollman;
designed by Latrobe.
1881-1960 Baltimore, Md., Wrought- 1/? Union Avenue Bridge.
(Woodberry), iron Pratt Built by Bollman;
Jones Falls truss possibly designed by him.
?-? Harpers Ferry, Va., Bollman 1/148' Arsenal Branch, B. & O.
Arsenal Canal through RR. Skew type. Span
truss length is that of
previous timber span.
?-? Baltimore, Md., Bollman 2/? B. & O. RR.
Gwynns Falls through
truss