There are 8,068 bridges in this category · Only showing 5,996 bridges with photos
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Pratt truss

The Pratt truss is named after Thomas and Caleb Pratt, Boston railroad engineers who patented the design in 1844. The Pratt and its variations are the most common design of metal truss bridges. On a basic Pratt truss, the diagonals slope toward the center of the bridge, do not cross any verticals, and are approximately parallel. The top chord is straight and parallels the lower chord. The panels can have sub-divisions - or verticals and diagonals that don't reach from the top to bottom chord, though this can be considered a variation of the basic type. There are many variations, or sub-types of the Pratt truss, some of which have their own name including Parker, camelback, Pennsylvania, Baltimore, and others. It is used in bridges as a through truss, pony truss, and deck truss.


Third Spokane Street Drawbridge (King County, Washington)
Built 1917; Replaced by a new road bridge 1924, streetcar line closed 1928.
Lost Pratt through truss bridge over Duwamish River on Spokane Street & Streetcars
Replaced by a new bridge

Third Street Bridge (Bay County, Michigan)
Built 1890; Struck and collapsed June 18, 1976
Lost Pratt through truss swing bridge over Saginaw River on Third Street
No longer exists

Third Street Bridge (Old) (Webster County, Iowa)
Built in the 1880s; Replaced 1910
Lost Pratt through truss bridge over Des Moines River on Third Street
Replaced by a new bridge

Third Street Southeast Bridge (Stark County, Ohio)
Originally built over Navarre Road SW; moved to Third Street SE in 1913
Lost Pratt through truss bridge over Nimishillen Creek on Third Street
Lost

Thirteenmile Creek CR 31/4 (Waterloo Smith Rd.) Bridge (Mason County, West Virginia)
Built 1943
Pony truss bridge over Thirteenmile Creek on CR 31/4 (Waterloo Smith Rd.)
Open to traffic

Thirteenmile Creek CR 58 (Calispell Ridge Rd.) Bridge (Mason County, West Virginia)
Built 1904
Through truss bridge over Thirteenmile Creek on CR 58 (Calispell Ridge Rd.)
Open to traffic

Thirteenmile Creek CR 66 (Locust Rd.) Bridge (Mason County, West Virginia)
Built 1900
Through truss bridge over Thirteenmile Creek on CR 66 (Locust Rd.)
Open to traffic

Thomas Bridge (Sullivan County, Tennessee)
Built in 1898 to replace an existing bridge, road later designated as State Highway 37, closed in 1971 when new State Highway 394 bridge was built upstream, Thomas Bridge barricaded and left intact.
Pratt through truss bridge over Beaver Creek
Closed to all traffic

Thomas J. McCall Memorial Bridge (Carbon County, Pennsylvania)
Built 1938; rehabilitated 1981
Deck truss bridge over Lehigh River on US 209 in Lehighton
Open to traffic

Thompson Creek Bridge (Lawrence County, Alabama)
Built 1934
Pony truss bridge over Thompson Creek on road between Bankhead parking lots
Open to traffic

Thompson Creek Bridge (Mercer County, Kentucky)
Built At Unknown Date. Either Relocated Or Reconstructed in 1935.
Lost Pratt pony truss bridge over Thompson Creek on Central Pike
Replaced by a new bridge

Thompson Creek East Fork Bridge (East Feliciana Parish, Louisiana)
Built 1925
Lost through truss bridge over Thompson Creek East Fork on Thompson Creek Road, west of Norwood
Demolished and replaced with a slab of concrete.

Thompson Crossing Bridge (Hillsborough County, New Hampshire)
Built 1893 by Berlin Iron Bridge Co.; Abandoned 1976
Pin connected Pratt through Truss over Contoocook River on abandonded section of Thompson Crossing road in Antrim
Derelict/abandoned

Thorngrove Road Bridge (Cass County, Missouri)
Built ca. 1930; rehabilitated 1950
Pony truss bridge over a branch of Wolf Creek on Thorngrove Road
Open to traffic

Thornton Bridge (Preston County, West Virginia)
Built 1893. Replaced in 2010 or 2011
Pony truss bridge over Big Sandy Creek on CR 4/2
Gone, replaced with concrete bridge

Three Sisters Railroad Bridge (West) (Tarrant County, Texas)
Pratt through truss bridge over West Fork Trinity River on BNSF Railway
Open to traffic

Throckmorton's Bridge (Monmouth County, New Jersey)
Bedstead Pratt pony truss bridge


Thunder Ave Bridge / Knox CR 389 (Knox County, Missouri)
Built 1922; Lost to flooding late June 2015
Pony truss bridge over South Fabius River on CR 389
Lost to the South Fabius Flooding at the end of June 2015.

Thunder Bridge (Miami County, Indiana)
Built 1924; replaced 1999
Lost through truss bridge over Big Pipe Creek on CR 125 W
Replaced by new bridge

Tibbee Bridge (Clay County, Mississippi)
Built 1896 by the Southern Bridge Co.; bypassed 2001
Abandoned pratt through truss bridge over Tibbee Creek on former Old Tibbee Rd.
Abandoned

Tibbs Bridge (Murray County, Georgia)
Built 1918 to replace a wooden bridge that had been there since the 1880's, replaced 1980
Lost Pratt through truss bridge over Conasauga River on Tibbs Bridge Road
Replaced by new bridge

Tice Bridge (Muscatine County, Iowa)
Built 1897; Two spans destroyed when flooding undermined the center pier in 1972; Converted to a fishing pier for a short time and later removed.
Lost Pratt through truss bridge over Cedar River on Iowa City Road
Removed but not replaced

Tiderishi Ditch TR 48 Bridge (Hancock County, Ohio)
Built by the Toledo Bridge Co.
Pony truss bridge over Tiderishi Ditch on TR 48
Open to traffic

Tiger Branch CR 252 Bridge (Shelby County, Missouri)
Built ca. 1910
Pony truss bridge over Tiger Branch on CR 252
Open to traffic

Tilghman Street Bridge (Lehigh County, Pennsylvania)
Built 1924; Replaced 1987
Lost Pratt through truss bridge over Jordan Creek on Tilghman Street
Replaced by a new bridge

Tilley Ditch Bridge CR N. 400 N.E. (2) (Knox County, Indiana)
Built ca. 1907
Lost Pratt pony truss bridge over Tilley Ditch on CR N. 400 N.E., N Albrecht Road
Replaced by a new bridge

Tilley Mill Bridge (Bartow County, Georgia)
Built 1903, abandoned when this section of Hardin Bridge Road was closed in 1980, now part of a private park
Pratt through truss bridge over Euharlee Creek on abandoned section of Hardin Bridge Rd
Closed to all traffic

Tilton Bridge (Whitfield County, Georgia)
Built 1886, replaced by a UCEB in 1984
Lost Pratt through truss bridge over Conasauga River on Tilton Bridge Road
Replaced by new bridge

Timber Creek Bridge (Beckham County, Oklahoma)
Built 1926
Through truss bridge over Timber Creek on I-40 Frontage Road in Elk City
Open to traffic

Timber Lake Creek Bridge (Washington County, Oklahoma)
Built 1911
Pony truss bridge over Timber Lake Creek on N4025 Rd.
Open to traffic

Timbuctoo Road Bridge 2 (Yuba County, California)
Built 1903
Pratt Pony truss bridge over Deep Ravine No. 2 on Timbuctoo Road
Open to traffic

Timpas Bridge (Otero County, Colorado)
Built 1924, rehabilitated in 1966
Through truss bridge over Timpas Creek on CR N, just off US 350
Open to one-lane traffic

Tindall Bridge (Sandusky County, Ohio)
Built 1915 by the Champion Iron Co.
Through truss bridge over Sandusky River on CR 209 in Ballville
Open to traffic

Tioga Street Bridge (Bradford County, Pennsylvania)
Lost Pratt through truss bridge over Chemung River on Tioga Road
Replaced by a new bridge

Tipton Run Bridge (Blair County, Pennsylvania)
Built 1903
Pony truss bridge over Tipton Run on TR 515 in Tipton
Closed to all traffic

Tiskilwa Bridge (Bureau County, Illinois)
(Main design: Pratt through truss)
Built 1884; replaced 1995
Lost through truss bridge over Bureau Creek on TR 236 near Tiskilwa
Replaced by modern bridge

TMER&L - Milwaukee River Bridge (Ozaukee County, Wisconsin)
Built 1850 for the Michigan Central, relocated here for the Milwaukee Northern (Later TMER&L) in 1906; Abandoned 1948
Lost Pratt through truss bridge over Milwaukee River on TMER&L interurban line
Demolished

TMER&L - White River Bridge (Racine County, Wisconsin)
Lost Pratt through truss bridge over White River on The Milwaukee Electric Railway & Light Co.
Removed

TN & OH Holston Bridge (Hawkins County, Tennessee)
Spectacular three-span Pratt deck truss bridge over Holston River on Norfolk Southern Railway
Open to traffic

Toad Hollow Road Bridge (Potter County, Pennsylvania)
Built 1910; reconstructed 1988
Lost Pratt pony truss bridge over Oswayo Creek on Toad Hollow Road (TR 300)
Replaced by a new bridge

Tobias Ford Bridge (Scott County, Indiana)
Built in 1897-98 by the Wrought Iron Bridge Company, abandoned after a new bridge was built on a different road nearby.
Pratt through truss bridge over Muscatatuck River on an abandoned section of CR 850
Derelict/abandoned

Tobler Creek Bridge (Upson County, Georgia)
Abandoned through truss bridge over Tobler Creek on Old Waymanville Road?
Derelict/abandoned

Toby Creek Bridge (Clarion County, Pennsylvania)
Built ca. 1905; destroyed by flooding in 1996
Lost pony truss bridge over Toby Creek on Breniman Road (TR 577)
Destroyed by flooding

Tod Ranch Road Bridge (Wabaunsee County, Kansas)
Built 1887 as a Railroad Bridge, Moved Here by Private Party 1950
Pratt through truss bridge over Mill Creek on Tod Ranch Road
Open to traffic

Toddtown Bridge (Louisa County, Iowa)
Built 1879
Lost Pratt through truss bridge over Iowa River on Road
Replaced by a new bridge

Toledo Bridge (Lewis County, Washington)
Built 1892; Replaced 1919
Lost Pratt through truss bridge over Cowlitz River on Road
Replaced by a new bridge

Toledo Terminal - Upper Maumee River Swing Bridge (Lucas County, Ohio)
Built 1902, last used March 1982 when a derailment damaged the structure
Pratt through truss bridge over Maumee River on Toledo Terminal RR (abandoned)
Closed to all traffic

Tollgate Road Bridge Plumstead Twp (Bucks County, Pennsylvania)
Built ca. 1895
Pony truss bridge over Gaddes Run on Tollgate Road in Plumstead Township, PA
Closed to all traffic

Tomahawk River Bridge (Lincoln County, Wisconsin)
Built 1936; rehabilitated 1976
Through truss bridge over Tomahawk River on US 8
Open to traffic

Tommelson Creek Bridge (Washington County, Texas)
Moved twice, then again to over Higgins Creek in Henderson Park, Brenham
Pratt through truss bridge over Tommelson Creek on Trail
Open to pedestrians only

Toms Hill Road Bridge (Daviess County, Indiana)
Built ca. 1910; rehabilitated 1994; removed 2004
Lost through truss bridge over Prairie Creek on CR 75 North
Removed but not replaced

Toronto Bridge (Clinton County, Iowa)
Built 1896;
Lost Pratt through truss bridge over Wapsipinicon River on Road
Replaced by a new bridge

Towanda Creek Bridge (Bradford County, Pennsylvania)
Built ca. 1910; rehabilitated 1962
Through truss bridge over Towanda Creek on TR 358
Open to traffic

Towanda Creek Bridge (Bradford County, Pennsylvania)
Built ca. 1900
Through truss bridge over Towanda Creek on TR 328
Replaced by a new bridge

Towanda Creek Bridge (Bradford County, Pennsylvania)
Built 1892; rehabilitated 1962
Through truss bridge over Towanda Creek on Curt Wright Road (TR 330)
Open to traffic

Tower Bridge (Yolo County, California)
Built 1934 by George Pollock & Company; Trolley tracks removed from median and converted to vehiclular lanes in 1963
Vertical lift bridge over Sacramento River on CA 275 in West Sacramento
Open to traffic

Townshend Dam Spillway Bridge (Windham County, Vermont)
Built 1961 by U.S. Army Corps of Engineers; Rehabilitated 2014
Pratt deck truss bridge over Spillway on Dam Road
Open to traffic

Township Road 18A Bridge (Putnam County, Ohio)
Built ca.1870's by D.H. Morrison
Pony truss bridge over North Powell Creek on Township Road 18A
Open to traffic

Township Road 271 Bridge (Shelby County, Illinois)
Built ca. 1900
Pony truss bridge over Richland creek branch on TR 271, 2.9 mi. southwest of Strasburg
Intact but closed to all traffic

Township Road 7 Bridge (Moultrie County, Illinois)
Lost through truss bridge over W Okaw River branch on TR 7, 3.3 mi. northwest of Lovington
Removed

Toyah Through Truss (Reeves County, Texas)
Abandoned pratt through truss bridge over Unnamed Creek on Road
Abandoned

Toziers Bridge (Bradford County, Pennsylvania)
Lost Pratt through truss bridge over Chemung River on Road
Replaced by a new bridge

TP&W - Illinois River Bridge (Tazewell County, Illinois)
Removed 1970 after being damaged by a barge tow.
Lost Pratt through truss bridge over Illinois River on Toledo Peoria & Western Railway
Destroyed by collision

TPC&L - Portage River Bridge (Ottawa County, Ohio)
Built 1904; One span lost 1923, Removed 1946
Lost Pratt through truss bridge over Portage River on Toledo, Port Clinton, & Lakeside Railway
Removed but not replaced

TR 104 Bridge (Wayne County, Ohio)
Built 1910; rehabilitated 1963
Pony truss bridge over Melvin Richey Ditch on TR 104
Open to traffic

TR 2A Bridge (Perry County, Ohio)
Built ca. 1900; rehabilitated 1988
Pony truss bridge over a branch of Little Rush Creek on TR 2A
Open to traffic

TR138 South Fork Bridge (Christian County, Illinois)
Built ca. 1900, rehabilitated 1937
Abandoned bedstead Pratt pony truss bridge over South Fork Sangamon River on N 1100 East Road (TR 138)
Abandoned with one span missing

TR16 Mosquito Creek Bridge (Christian County, Illinois)
Built 1893
Through truss bridge over Mosquito Creek on Meridian Avenue/CR 2100E (TR 16), 6 mi. east of Mt.Auburn
Derelict/abandoned

TR186A South Fork Bridge (Christian County, Illinois)
Pony truss bridge over South Fork Sangamon River on TR 186A, 5 mi. southwest of Rosamond
Replaced by a new bridge in 2009

TR258 Lake Fork Bridge (Christian County, Illinois)
Built 1898
Bedstead pony truss bridge over Lake Fork on TR 258, 2 mi. northwest of Pana
Open to traffic

TR264 Flat Branch Bridge (Christian County, Illinois)
Pony truss bridge over Flat Branch on TR 264, 4 mi. southeast of Stonington
Intact but closed to all traffic

TR297 Prairie Fork Bridge (Christian County, Illinois)
Pony truss bridge over Prairie Fork on TR 297
Closed indefinitely

TR307A South Fork Bridge (Christian County, Illinois)
Replaced 2012
Pony truss bridge over South Fork Sangamon River on TR 307A, 7 mi. east of Morrisonville
Replaced by a new bridge

TR428 Pony Truss (Somerset County, Pennsylvania)
Pinned pratt pony truss bridge over Coxes Creek on abandoned T428
Abandoned

TR53 Buckhart Creek Bridge (Christian County, Illinois)
Abandoned pony truss bridge over Buckhart Creek on TR 53
Derelict/abandoned with deck missing

Trail of the Couer D'Alenes - Chatcolet Bridge (Benewah County, Idaho)
Built 1921
Pratt through truss bridge over Lake Coeur d'Alene on the Trail of the Couer D'Alenes (formerly Union Pacific Railroad)
Open to pedestrians

Trent Railroad Bridge (Moody County, South Dakota)
Lost Pratt pony truss bridge over Big Sioux River on abandoned railroad
Removed but not replaced

Trenton Through Truss Bridge (Cache County, Utah)
Built 1925
Through truss bridge over Bear River on 10200 North in Trenton
Open to traffic

Trenton Viaduct (Grundy County, Missouri)
Built 1931; replaced 2003
Lost through truss bridge over the Union Pacific Railroad on MO 6 in Trenton
Replaced by a new bridge

Trestle Bridge (Howard County, Nebraska)
Pratt pony truss bridge over Oak Creek on the town's Hike/Bike Trail (a pedestrian greenway trail)
Open to pedestrians

Tri-State Canal Bridge (Scotts Bluff County, Nebraska)
Built 1915
Pony truss bridge over Tri-State Canal on US 26 (Highway 26), 2.2 mi. west of Morrill
Closed to all traffic

Trickum Road Bridge (Pettis County, Missouri)
Built 1884-85 by the King Bridge Co. on the county seat road between Sedalia and Marshall. Relocated ca. 1920 a short distance to the southwest. Replaced by a new concrete bridge in 1991
Lost through truss over Heaths Creek on Trickum Road just west of the intersection between US 65 and Route BB
Replaced by a concrete bridge

TRIN - Purgatoire River Bridge (E) (Las Animas County, Colorado)
Through truss bridge over Purgatoire River on Out of Service Trinidad Railway (BNSF)
Closed to all traffic

TRIN - Purgatoire River Bridge (W) (Las Animas County, Colorado)
Through truss bridge over Purgatoire River on Out of Service Trinidad Railway (BNSF)
Closed to all traffic

Tripoli Bridge (Bremer County, Iowa)
Lost Pratt through truss bridge over Wapsipinicon River on Road
Replaced by a new bridge

TRMW - Puyallup River Bridge (Pierce County, Washington)
Built 1919, rehabilitated 1948
Pratt through truss bridge over Puyallup River, Railroad on Tacoma Railroad
Open to traffic

Troost Avenue Bridge (Jackson County, Missouri)
Replaced 1917
Lost Pratt through truss bridge over Brush Creek on Troost Avenue
Replaced by new bridge

Troups Creek Bridge (Tioga County, Pennsylvania)
Built 1910 by the Groton Bridge Co.
Through truss bridge over Troups Creek on PA 4009
Open to traffic

Troutdale Bridge (Multnomah County, Oregon)
Built 1912
Pratt through truss bridge over Sandy River on Historical Columbia River Highway in Troutdale
Open to traffic

Troy Market Street Bridge (Miami County, Ohio)
Built 1877, Replaced 1961
Lost Through truss bridge over Miami River on Market Street
Replaced by a new bridge

Troy Mills Bridge (Linn County, Iowa)
Built 1887; replaced 1950
Lost Pratt through truss bridge over Wapsipinicon River on Troy Mills Road
Replaced by a new bridge

Trunk Line Bridge (St. Clair County, Michigan)
Replaced 1990
Lost Pratt through truss bridge over Pine River on Griswold Road near Kimball
Replaced by new bridge

TTIS - Hinkston Creek Bridge (Bourbon County, Kentucky)
Through truss bridge over Hinkston Creek on Transkentucky Transportation Railroad in Millersburg
Open to traffic

Tucker Creek Bridge (Nowata County, Oklahoma)
Built ca. 1930
Pony truss bridge over Tucker Creek on E0115
Open to traffic

Tug Fork Bridge (McDowell County, West Virginia)
Built 1918
Through truss bridge over Tug Fork on CR 52/1
Open to traffic

Tug Fork Bridge (McDowell County, West Virginia)
Built or relocated here in 1907
Through truss bridge over Tug Fork on CR 7/13
Demolished

Tull Bridge (Saline County, Arkansas)
Built 1916 by the Boardman Co. of Oklahoma City, OK
Through truss bridge over Saline River on CR 5 (Old AR 291) at Tull
Closed with approaches removed and awaiting rehabilitation

Tunnel Mill Bridge (Hamilton County, Iowa)
Built 1899; Replaced 1973
Lost Pratt through truss bridge over Boone River on Tunnel Mill Road
Replaced by a new bridge, only the piers and raised approaches remain

Turkey Creek Bridge (Benton County, Missouri)
Built 1903-04 by the Dildine Bridge Co.
Pony truss bridge over Turkey Creek on CR SE 810 near the end of Route PP
Closed to all traffic

Turkey Creek Bridge (McPherson County, Kansas)
Built ca. 1930
Lost pony truss bridge over Turkey Creek on 16th. Avenue, 2.0 mi. east and 5.6 mi. south of Mcpherson
Replaced by a new bridge