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Parker truss

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The Parker truss is named after Charles H. Parker who patented the design on February 22, 1870. It is a variation of a Pratt truss but differs from the Pratt in that the top and bottom chord are not parallel. It seems initially Parker used a curved top chord, but later it was simplified to use a polygonal, or series of straight sections not in a line forming an approximate curve. The Parker uses less material than an equivalent Pratt, but is a bit more complex to build. Sub-types of the Parker truss with their own name are the camelback and the Pennsylvania. The Parker truss in bridge construction is most commonly a through truss, but can also be a pony truss or a deck truss.


110 Mile Creek (Osage County, Kansas)
Lost Parker through truss bridge over 110 Mile Creek on K-68/K268
Replaced by new bridge

150th Street Bridge (Story County, Iowa)
Built 1920 to replace a lost bridge on the Lincoln Highway, moved here in 1952; rehabilitated 1974
Through truss bridge over South Skunk River on 150th Street
Open to traffic

170th Street Bridge (Story County, Iowa)
Built 1939
Through truss bridge over South Skunk River on 170th Street
Open to traffic

18th Street Bridge (Polk County, Iowa)
Replaced 1936
Parker through truss over Raccoon River on 18th Street (Now renamed Fleur Drive.)
Replaced by a new bridge

1st Avenue North Bridge (Older) (Cascade County, Montana)
Replaced 1920
Lost Parker through truss bridge over Missouri River on 1st Avenue North
Replaced by a new bridge

265th Street Bridge (Butler County, Iowa)
Built 1955
Parker Pony truss bridge over Freddeke Creek on 265th Street
Open to traffic

26th Street Bridge (St. Clair County, Illinois)
Built 1936; rehabilitated 1988
2 span through truss bridge over Southern Rr on 26th St in East Saint Louis
Open to traffic

2nd Street Bridge (Braxton County, West Virginia)
Built 1931; rehabilitated 1991
Through truss bridge over Elk River on CR 19/40 in Sutton
Open to traffic

3 Mile Bridge Road Bridge (Washington County, Vermont)
Built 1928 by the Palmer Steel Co; Rehabilitated and approach span removed 1991
Parker through truss bridge over Winooski River on 3 Mile Bridge Road
Open to traffic

36th Street Bridge (Allegan County, Michigan)
Replaced 1987
Lost Parker pony truss bridge over Rabbit River on 36th Street in Salem Township
Replaced by new bridge

7th Street Bridge (Blair County, Pennsylvania)
Built 1912 by the Penn Bridge Co.
Through truss bridge over NS Railroad on PA 4013 in Altoona
Replaced by new bridge.

A&NM - Gila River Bridge (Greenlee County, Arizona)
Lost Parker through truss bridge over Gila River on Railroad
Replaced by a new bridge

Abandoned KCS - Kansas River Bridge (Wyandotte County, Kansas)
Built 1916; abandoned 1983
Abandoned three-span through truss bridge over Kansas River on the former Kansas City Southern Railway, south of James Street
Closed to all traffic

Abbotts Creek Bridge (Davidson County, North Carolina)
Built 1927 by the Virginia Bridge Co.; replaced 1985
Lost Parker truss bridge over Abbotts Creek (High Rock Lake) on NC-2294
Lost circa 1985

Access Road Kill Creek Bridge (Johnson County, Kansas)
Parker pony truss bridge over Kill Creek on Access Road/Spoon Creek Road
Open to traffic but appears to have controlled access

Acosta Bridge (Old) (Duval County, Florida)
Built 1921; Replaced 1991
Lost Parker through truss bridge over St Johns River on State Route 13
Replaced by a new bridge

Airy Street Bridge (Montgomery County, Pennsylvania)
Replaced 1977
Lost Parker through truss bridge over Markley Street, Stony Creek, and railroad tracks on W. Airy Street (SR 3009)
Replaced by new bridge

Albert Lea Viaduct (Freeborn County, Minnesota)
Built 1934 by A. Guthrie & Co. of Minneapolis; replaced 2001
Lost two-span through truss bridge over the Union Pacific Railroad tracks on MN 13 in Albert Lea
Replaced by modern bridge

Aldrich Change Bridge (Wayne County, New York)
Built 1858 to span the Erie Canal at Rochester; relocated 1880 to Palmyra; sold to farmer and relocated to cross Ganargua Creek; collapsed 1996; relocated and restored in Palmyra 2002-03
Parker pony truss bridge relocated and preserved at Aqueduct Park in Palmyra
Open to pedestrians

Aldridge Railroad Bridge (Union County, Illinois)
Lost Parker through truss bridge over Big Muddy River on former Illinois Central Railroad
Removed but not replaced

Allegheny Avenue Bridge (Cameron County, Pennsylvania)
Built 1933
Pony truss bridge over Portage Creek on PA 120 in Emporium
Open to traffic

Allegheny River Bridge (Potter County, Pennsylvania)
Built 1934; rehabilitated 1981
Pony truss bridge over Allegheny River on US 6 in Coudersport
Open to traffic

Allegheny River Bridge (Warren County, Pennsylvania)
Built 1933; rehabilitated 1978, 2002
Through truss bridge over Allegheny River on PA 127 (Buckingham Street) in Tidioute
Open to traffic

Allegheny River Bridge (Cattaraugus County, New York)
Abandoned through truss bridge over Allegheny River on 9 Mile Road
Abandoned

Alum Creek TR 222 (Green Rd.) Bridge (Morrow County, Ohio)
Built 1906 by the Capitol Construction Co. of Columbus, Oh.; rehabilitated 1989
Pony truss bridge over Alum Creek on TR 222 (Green Rd.)
Open to traffic

American Railroad - Puente Río Grande de Manatí (Manati, Puerto Rico)
Lost Parker through truss bridge over Río Grande de Manatí on American Railroad Co. of Puerto Rico
Removed

American Railroad/Central Canovanas - Puente Río Grande de Loíza (Canovanas, Puerto Rico)
Buil 1927
Parker through truss bridge over Río Grande de Loíza on American Railroad Co. of Puerto Rico/Central Canovanas Railroad
Removed

Amory Road Bridge (Old) (Monroe County, Mississippi)
Parker through truss bridge over Tombigbee River
No longer exists

Amtrak - Groton Bridge (New London County, Connecticut)
(Main design: Warren through truss)
Built 1919 by the American Bridge Co. as a bascule bridge; draw span replaced by vertical lift in 2008
Vertical-lift through truss bridge over Thames River on Northeast Corridor (Amtrak)
Open to traffic

AN - Apalachicola River Bridge (Franklin County, Florida)
Built 1906
Parker through truss bridge over Apalachicola River on Apalachicola Northern RR
Open to traffic

Andrew County Road 164 Bridge (Andrew County, Missouri)
Built ca. 1940
Pony truss bridge over a branch of 102 River on CR 164
Open to traffic

Animas River Bridge (San Juan County, New Mexico)
Built 1929
Through truss bridge over Animas River on Business NM 516 in Aztec
Open to traffic

Ann Street Bridge (Kent County, Michigan)
Built 1908
Parker through truss bridge over Grand River on Ann Street
Replaced by a new bridge

Annapolis Road Bridge (Sonoma County, California)
Built 1920; rehabilitated 1971
Parker Through truss bridge over Gualala River (Clark Xing) on Annapolis Road
Open to traffic

Antiguo Puente Río Blanco (Naguabo, Puerto Rico)
Parker through truss bridge over Río Blanco on PR 31
Abandoned

Applegate Bridge (Jackson County, Oregon)
Built 1934
Parker through truss bridge over Applegate River on OR 238
Open to traffic

Applegate River Bridge (Josephine County, Oregon)
Built 1935, Replaced 2004
Lost Parker through truss bridge over Applegate River on OR 238 in Murphy
Replaced by a steel plate girder bridge in 2004

Arapahoe Creek CR 27 Bridge No. 1 (Andrew County, Missouri)
Built ca. 1930; replaced 2012
Lost pony truss bridge over Arapahoe Creek on CR 27
Replaced by a new culvert

Arapahoe Creek CR 29 Bridge (Andrew County, Missouri)
Built ca. 1930
Pony truss bridge over Arapahoe Creek on CR 29
Open to traffic

Arch Street Bridge (Passaic County, New Jersey)
Built 1905; rehabilitated 1997
Through truss bridge over Passaic River on Arch Street in Paterson
Open to traffic

Arkadelphia Bridge (Clark County, Arkansas)
Originally built 1933 over Caddo River; relocated 1960 to replace the previous bridge
Through truss bridge over Ouachita River at Arkadelphia carrying AR 7, AR 8, and AR 51
Fully repaired and open to two lane traffic.

Arkansas River Bridge (Muskogee County, Oklahoma)
Built 1922; abandoned circa 1980
Through truss bridge over Arkansas River on old alignment of OK 16 in Muskogee
Closed to all traffic

Arkansas River Bridge (Wagoner County, Oklahoma)
Originally had 10 through trusses, one must have been damaged, and it has been replaced with a stringer span. This is on the far side, not visible in photos.
Through truss bridge over Arkansas River on Old OK 104
Intact but closed to all traffic

Arkansas River Bridge (Kay County, Oklahoma)
(Main design: Parker through truss)
Built 1911; replaced 2004
Lost six-span through truss bridge over Arkansas River on E0220 in Ponca City
Replaced by a new bridge

Arkansas River CO 291 Bridge (Chaffee County, Colorado)
Built or reconstructed in 1959
Pony truss bridge over Arkansas River on CO 291 north of Salida
Open to two-lane traffic on a state highway

Arkansas River CR 47 Bridge (Fremont County, Colorado)
Built ca. 1930; rehabilitated 1960
Pony truss bridge over Arkansas River on CR 47
Open to traffic

Arlington State Aid Bridge (Washington County, Nebraska)
Built 1913
Lost Parker through truss bridge over Elkhorn River on S 8th Street
Removed but not replaced

Armstrong Bridge (Clackamas County, Oregon)
Built 1954
Parker through truss bridge over Clackamas River on OR 224
Open to traffic

Arroyo Seco River Bridge (Monterey County, California)
Built 1943
2-span Parker through truss bridge over Arroyo Seco River on Elm Avenue
Open to traffic

Ashland Avenue Bridge (Cook County, Illinois)
Built 1933; rehabilitated 1998
Parker through truss bridge over Cal Sag Channel on Ashland Avenue in Calumet Park
Open to traffic

Astronaut David Wolf Bridge (Marion County, Indiana)
Built 1941; rehabilitated 1980, and 2008
Through truss bridge over White River on 82nd Street in Indianapolis
Open to traffic

Atchison County Road 291 Bridge (Atchison County, Missouri)
Built ca. 1930; replaced 2006
Lost pony truss bridge over a branch of Tarkio River on CR 291
Replaced by new bridge

Atchison County Road 371 Bridge (Atchison County, Missouri)
Built ca. 1930; replaced 2005
Lost pony truss bridge over a branch of Tarkio Creek on CR 371
Replaced by new bridge

Atchison County Road 490 Bridge (Atchison County, Missouri)
Built ca. 1930; replaced 2003
Lost pony truss bridge over a branch of Tarkio Creek on CR 490
No longer exists

ATLT - Canadian River Bridge (Blaine County, Oklahoma)
Parker through truss bridge over Canadian River on AT&L Railroad (former RI)
Open to traffic

ATN - Coosa River Bridge (Gadsen) (Etowah County, Alabama)
Built 1909 by the American Bridge Co.
Parker through truss bridge over Coosa River on CSX Transportation
Open to traffic

ATSF - Canadian River Bridge (Old) (Hemphill County, Texas)
Built 1886; Replaced ?
Lost Parker through truss bridge over Canadian River on Atchison, Topeka & Santa Fe Railway
Replaced by a new bridge

ATSF - Noble Bridge (Old) (Cleveland County, Oklahoma)
Lost Parker through truss bridge over Canadian River on Atchison, Topeka & Santa Fe Railway
Replaced by a new bridge

Attica Bridge (Cass County, Indiana)
Built 1904; replaced 1993
Lost through truss bridge over Deer Creek on CR 500 E
Replaced by new bridge

Au Sable River Bridge (Iosco County, Michigan)
Built 1931; bypassed 2003
Pony truss bridge over Au Sable River on Old M-65
Don't know

Avenue G South Channel Bridge (Old) (Whiteside County, Illinois)
Built 1906; Replaced 1948
Lost Parker through truss bridge over Rock River South Channel on Avenue G
Replaced by a new bridge

Avonmore Bridge (Westmoreland County, Pennsylvania)
Built 1937; rehabilitated 1985
Through truss bridge over Kiskiminetas River on PA 156 in Avonmore
Open to traffic

AZCR - Perkinsville Bridge (Yavapai County, Arizona)
Built 1912
Bridge over Verde River on Arizona Central Railway/Verde Canyon Railroad
Open to traffic

B Square Ranch Bridge (San Juan County, New Mexico)
Built ca. 1905; Relocated here in the 1980s
Parker through truss bridge over San Juan River on Ranch Road
Open to private traffic

Bagley Road Bridge (Muskingum County, Ohio)
Built 1900; rehabilitated 1951
Pony truss bridge over Kent Run on Bagley Road (CR 55)
Open to traffic

Bainbridge Street Bridge (Older) (Northumberland County, Pennsylvania)
Built 1905-1907 by York Bridge Co. for Sunbury Bridge Co., demolished 1927
Lost Parker through truss bridge over Susquehanna River on Banbridge Street and Sunbury & Selinsgrove Electric Railway
Replaced by new bridge

Bald Eagle Creek Bridge (Centre County, Pennsylvania)
Built 1930; rehabilitated 1982
Through truss bridge over Bald Eagle Creek on PA 144 in Milesburg
Open to traffic

Bald Eagle Creek Bridge (Clinton County, Pennsylvania)
Built 1933; rehabilitated 1982
Through truss bridge over Bald Eagle Creek on PA 150 in Flemington
Open to traffic

Ball's Ford Bridge (Polk County, Iowa)
Built ca. 1891 as 4 Parker through trusses; One span replaced by a Pratt through truss ?; Replaced 1938
Lost Parker through truss bridge over Des Moines River on Des Moines RFD 2/Avon RFD 1
Replaced by a new bridge

Baptist Ford Bridge (Washington County, Arkansas)
Built 1930 by the Maxwell Construction Co.
Three-span pony truss bridge over West Fork White River on CR 1194 (Old US 71) in Greenland
Open to local traffic

Barnard Bridge (Lane County, Oregon)
Built 1923
Parker through truss bridge over Willamette River on OR 58 Frontage Road in Westfir
Open to traffic

Bastrop Bridge (Bastrop County, Texas)
Built 1922; Bypassed by new bridge in 1958
Three-span through truss bridge over the Colorado River in Bastrop
Open to pedestrians only

Bates County Ditch Bridge (Bates County, Missouri)
Built 1907-08 by the Kansas City Bridge Co.; replaced 1994
Lost through truss bridge over Bates County Drainage Ditch on 5487 Road
Replaced by new bridge

Bayou Bartholomew US 82 Bridge (Ashley County, Arkansas)
Built 1937 by S.M. Dixon, Contractor; replaced 2003
Lost pony truss bridge over Bayou Bartholomew on US 82
No longer exists

Bayou Lafourche Cutoff LA 847 Bridge (Caldwell Parish, Louisiana)
Built in 1922 on US 61 in West Feliciana Parish; relocated here 1960-64
Through truss bridge over Bayou Lafourche Cutoff on LA 847
Open to traffic

Bayview Bridge (Jefferson County, Alabama)
Replaced 1977
Lost Parker through truss bridge over Bayview Lake on Mulga Gap Road/Mulga Loop Road
Replaced by a new bridge

Bear Creek AR 7 Bridge (Perry County, Arkansas)
Built 1933
Two-span pony truss bridge over Bear Creek on AR 7
Open to traffic

Bearden's Mill Bridge (Lincoln County, Tennessee)
Abandoned parker through truss bridge over Elk River on an abandoned section of River Road about 50 yards east of the intersection of River Rd. and William Battle Blvd. in Fayetteville
Abandoned

Beaucoup Creek IL 152 Bridge (Perry County, Illinois)
Built 1927; replaced 1985 (?)
Lost Parker through truss bridge over Beaucoup Creek on IL 152
Replaced by a new bridge

Beaver Creek Bridge (Fremont County, Colorado)
Built 1923
Pony truss bridge over Beaver Creek on CR 120 (formerly CO 120) in Penrose
Open to traffic

Beaver Creek Bridge (Haskell County, Oklahoma)
Built 1956
Pony truss bridge over Beaver Creek on OK 2/OK 31 west of Kinta
Open to traffic

Beckleysvlle Road Bridge (Baltimore County, Maryland)
Built 1931; rehabilitated 1986
Through truss bridge over Pretty Boy Resevoir on Beckleysvlle Road
Open to traffic

Bee Creek Blvd. Bridge (Platte County, Missouri)
Built ca. 1940; rehabilitated 1987
Pony truss bridge over Bee Creek on Bee Creek Blvd.
Open to traffic

Belleville Road Bridge (Wayne County, Michigan)
Built 1924; Deck replaced 1943 and 1959; Moved to Kent County, Michigan, 1995.
Replaced/relocated Parker pony truss bridge over Huron River on Belleville Road in Belleville
Replaced by new bridge

Bellville Bridge (Richland County, Ohio)
Built 1938 by the Mt. Vernon Bridge Co.; rehabilitated 1977
Through truss bridge over Clear Fork on OH 13 (Main Street) in Bellville
Open to two-lane traffic

Benedict Road Bridge (Boone County, Missouri)
Bypassed by new bridge 1981-82
Bypassed pony truss bridge over Perche Creek on Benedict Road
Abandoned

Benton Street Bridge (Older) (Johnson County, Iowa)
Built 1902-03; replaced 1949
Lost 2-span Parker Through truss bridge over Iowa River on Benton Street
Replaced by a new bridge

Bevil Jarrel Memorial Bridge (Harris County, Texas)
Built 1931, Converted to pedestrian use 2007.
Through truss bridge over San Jacinto River on US 59 Northbound Frontage Road in Houston
Open to pedestrians only

Big Blue River Bridge (Shelby County, Indiana)
Built 1937; rehabilitated 1976; replaced 1997
Lost through truss bridge over Big Blue River on IN 44
Replaced by new bridge

Big Creek Bridge (Johnson County, Missouri)
Built ca. 1910; rehabilitated 1995
Lost through truss bridge over Big Creek on CR SW 1801
Replaced by a new bridge on a new alignment and needlessly demolished.

Big Creek Bridge (Jefferson County, Indiana)
Built 1933; rehabilitated 1968; replaced 1992
Lost through truss bridge over Big Creek on IN 3
Replaced by new bridge

Big Creek Ditch AR 349 Bridge (Craighead County, Arkansas)
Built 1971; replaced 2006
Lost pony truss bridge over Big Creek Ditch on AR 349
Replaced by new bridge

Big Creek-Lower New Harmony Rd. Bridge (Posey County, Indiana)
Built 1905; replaced 1992
Lost through truss bridge over Big Creek on Lower New Harmony Road
Replaced by new bridge

Big Eagle Creek Bridge (McCurtain County, Oklahoma)
Built ca. 1940
Through truss bridge over Big Eagle Creek on D4710 (Old OK 21)
Open to traffic

Big Four Bridge (Original) (Jefferson County, Kentucky)
(Main design: Pennsylvania through truss)
Built 1888-1895 (Main span portals stated 1893); Replaced 1929
Lost Through truss bridge over Ohio River on New York Central Railroad
Replaced by a new bridge

Big Horn River Bridge (Big Horn County, Montana)
Three-span through truss bridge over Big Horn River on County Rd 50A
Abandoned with deck removed

Big Sallisaw Creek Bridge (Sequoyah County, Oklahoma)
Built 1934; Demolished October 2016
Pony truss bridge over Big Sallisaw Creek on US 64 WB in Sallisaw
Demolished

Big Salt River Bridge (Midland County, Michigan)
Built 1932; replaced 2001
Lost pony truss bridge over Big Salt River on North Saginaw Road in Sanford
No longer exists

Big Sandy Draw Bridge (Chaffee County, Colorado)
Built 1938
Pony truss bridge over Big Sandy Draw on US 24/US 285 east of Johnson Corner
Open to traffic

Big Sioux River Bridge (Minnehaha County, South Dakota)
Built ca. 1910 by the Western Bridge and Constuction Co. Abandoned in 1998, later removed.
Through truss bridge over Big Sioux River on Big Sioux Road, 3 mi. south of Baltic
Removed but not replaced