Arkansas River CR 371 Bridge (Chaffee County, Colorado)
Built in 1998, replacing a concrete bridge built in 1965
Pony truss bridge over Arkansas River on CR 371 between Buena Vista and Granite
Open to two-lane traffic on a gravel road

Boydsville Pony Truss (Belmont County, Ohio)
Built 1998
Pony truss bridge over Wheeling Creek on Plumm Street, Ch 24
Open to traffic

Branch Hickory Creek Bridge (Carter County, Oklahoma)
Built 1998
Pony truss bridge over Branch Hickory Creek on E1980 in Ardmore
Open to traffic

Brush Creek Bridge (Curry County, Oregon)
Built 1998
Concrete arch bridge over Brush Creek on US 101
Open to traffic

Catherine Drive Bridge (Snohomish County, Washington)
Built 1998
Concrete arch bridge over Catherine Creek on Catherine Drive in Lake Stevens
Open to traffic

Crooked Creek Bridge (Grant County, Oklahoma)
Built 1998
Pony truss bridge over Crooked Creek on N2820
Open to traffic

Fletcher Covered Bridge (Miami County, Ohio)
Built 1998
Modern covered bridge over Gustin Ditch in Fletcher
Open to traffic

Foothills Trail Bridge (Pierce County, Washington)
Built 1998
Wooden truss bridge over Switchback Washout on Foothills Trail
Open to traffic

Fore River Bridge (Cumberland County, Maine)
Built 1998
Bascule bridge over Fore River on ME 77 in South Portland
Open to traffic

Fox River Bridge (Brown County, Wisconsin)
Built 1998
Bascule bridge over Fox River on Main Street (US 141) in Green Bay
Open to traffic

Humble Canal LA 55 Bridge (Terrebonne Parish, Louisiana)
Built 1998
Swing bridge over Humble Canal on LA 55
Open to traffic

Knapps Narrows Bridge (Talbot County, Maryland)
Built 1998
Bascule bridge over Knapps Narrows on MD 33
Open to traffic

Minerva Creek Bridge (Hardin County, Iowa)
Built 1998
Arch bridge over Minerva Creek on a local road
Open to traffic

Pony Creek Bridge (Pottawattamie County, Iowa)
Built 1998
Tee beam bridge over Pony Creek on a local road
Open to traffic

Pryor Creek Bridge (Rogers County, Oklahoma)
Built 1998
Pony truss bridge over Pryor Creek on 6662C
Open to traffic

Raging River Bridge (King County, Washington)
Built 1998
Through truss bridge over Raging River on 328 Way SE in Fall City
Open to traffic

South Fork Merced River Bridge (Mariposa County, California)
Built 1998
Pony truss bridge over South Fork Merced River on CA 41
Open to traffic

US 50E Osage River Bridge (Cole County, Missouri)
Built 1998
Steel stringer bridge over Osage Rvr, Pvt Marina Road on Us 50 E Us 63 S
Open to traffic

Walker Road Bridge (Siskiyou County, California)
Built 1998
Deck truss bridge over Klamath River on Walker Road
Open to traffic

West Mashta Drive Bridge (Miami-Dade County, Florida)
Built 1998
Concrete arch bridge over Biscayne Bay Canal on West Mashta Drive in Key Biscayne
Open to traffic

Wilkinson Pioneer Park Covered Bridge (Cerro Gordo County, Iowa)
Originally built 1969; destroyed by arson 1997; reconstructed 1998
Modern covered bridge over a branch of Shell Rock River at Wilkinson Pioneer Park, southeast of Rock Falls
Open to one-lane traffic