Historic Photographs

Home

Search

Subject Browse
Browse by Subject >>

State/City Browse
Alaska
Alabama
Arkansas
Arizona
California
Colorado
Connecticut
District of Columbia
Delaware
Florida
Georgia
Hawaii
Iowa
Idaho
Illinois
Indiana
Kansas
Kentucky
Louisiana
Massachusetts
Maryland
Maine
Michigan
Minnesota
Missouri
Mississippi
Montana
North Carolina
North Dakota
Nebraska
New Hampshire
New Jersey
New Mexico
Nevada
New York
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Virginia
Vermont
Washington
Wisconsin
West Virginia
Wyoming


Home

>

Subjects

>

Engineering



Image Coming Soon
72 Marlborough Street
Residential Hydraulic Elevator, Boston, Suffolk County, MA

Image Coming Soon
Abbett Avenue Bridge
Spanning Whippany River at Abbett Avenue, Morristown, Morris County, NJ

Image Coming Soon
Abbeville Hydroelectric Power Plant
State Highway 284 & County Road 72, Rocky River (historical), Abbeville County, SC

Image Coming Soon
Albatross Cottages
3353, 3367, 3407 & 3415 Albatross Street, San Diego

Image Coming Soon
Alcovy Road Bridge
Spanning Alcovy River, Covington, Newton County, GA

Image Coming Soon
Alden Research Laboratory
Rotating Boom, Holden, Worcester County, MA

Image Coming Soon
Alvord Lake Bridge
San Francisco, San Francisco County, CA,

Image Coming Soon
American Mill Bridge
Spanning Center Creek, intersection Routes H & 71 , Carthage, Jasper County

Image Coming Soon
American Mill Bridge
Spanning Center Creek, intersection Routes H & 71 , Carthage, Jasper County

Image Coming Soon
American Mill Bridge
Spanning Center Creek, intersection Routes H & 71 , Carthage, Jasper County

Image Coming Soon
Annisquam Bridge
Spanning Lobster Cove between Washington & River S, Gloucester, Essex County, MA

Image Coming Soon
Armour
Swift, Burlington Bridge, Kansas City, Jackson County

Image Coming Soon
Armour
Swift, Burlington Bridge, Kansas City, Jackson County

Image Coming Soon
Armour
Swift, Burlington Bridge, Kansas City, Jackson County

Image Coming Soon
Aspaas Dam
Tacoma, La Plata County, CO,

Image Coming Soon
Atherton Bridge
Spanning Nashua River on Bolton Road, Lancaster, Worcester County, MA

Image Coming Soon
Augustine Bridge
Brandywine River, Augustine Cutoff, Wilmington, New Castle County

Image Coming Soon
Bacon Bridge
Spanning Moniteau Creek, Bacon, Moniteau County, MO

Image Coming Soon
Baltimore & Ohio Railroad
Carrollton Viaduct, Spanning Gwynn's Falls near Carroll Park, Baltimore, Independent City

Image Coming Soon
Barber Bridge
Spanning Musselshell River, Barber, Golden Valley County, MT

Image Coming Soon
Baseline Bridge
Spanning South Platte River on County Road 168, Brighton, Adams County, CO

Image Coming Soon
Battle Creek Hydroelectric System
Battle Creek & Tributaries, Red Bluff, Tehama County, CA

Image Coming Soon
Baxterville Bridge
Spanning Rio Grande River at Masonic Park Drive, South Fork, Rio Grande County, CO

Image Coming Soon
Bayonne Bridge
Spanning Kill Van Kull between Bayonne & Staten Is, Bayonne, Hudson County, NJ

Image Coming Soon
Beachside Avenue Bridge
Westport, Fairfield County, CT,

Image Coming Soon
Beaver Creek Bridge
Hot Springs, Custer County, SD,

Image Coming Soon
Bellefontaine Bridge
Saint Louis, St. Louis City County, MO,

Image Coming Soon
Bellows Falls Arch Bridge
Spanning Connecticut River, North Walpole, Cheshire County, NH

Image Coming Soon
Benson Bridge
Spanning Cutler Reservoir, Benson, Cache County, UT

Image Coming Soon
Big Four Bridge
Spanning Ohio River, Louisville, Jefferson County, KY

Image Coming Soon
Big Oak Flat Road
Between Big Oak Flat Entrance & Merced River, Yosemite Village, Mariposa County, CA

Image Coming Soon
Black Bridge
Spanning Gunnison River, Grand Junction, Mesa County, CO

Image Coming Soon
Black River Canal
Locks 39-43, State Route 46, Boonville, Oneida County

Image Coming Soon
Blackwell Bridge
Heardmont, County Road 244, Heardmont, Elbert County

Blue Ridge Parkway
Linn Cove Viaduct, On Grandfather Mountain, Asheville, Buncombe County

Image Coming Soon
Boardman's Lenticular Bridge
Spanning Housatonic River on Boardman's Road, New Milford, Litchfield County, CT

Image Coming Soon
Boldman Bridge
Spanning Levisa Fork, Pikeville, Pike County, KY

Image Coming Soon
Bonner's Ferry Bridge
Spanning Kootenai River, Bonners Ferry, Boundary County, ID

Image Coming Soon
Boston & Maine Railroad
Northampton Lattice Truss Bridge, Northampton, Hampshire County, MA

Image Coming Soon
Boston & Providence Railroad
Canton Viaduct, Neponset Street at East branch of Neponset River, Canton, Norfolk County

Image Coming Soon
Boston & Worcester Railroad
Bogastow Brook Viaduct, Spanning Bogastow Brook at Woodland Avenue, Holliston, Middlesex County

Image Coming Soon
Boston Manufacturing Company
144-190 Moody Street, Waltham, Middlesex County, MA

Image Coming Soon
Boston Water Works
Leavitt Pumping Engine, 2450 Beacon Street, Boston, Suffolk County

Image Coming Soon
Boston Water Works
Worthington Pump, 2450 Beacon Street, Boston, Suffolk County

Image Coming Soon
Boulevard Bridge
Spanning Wagner Creek at Old Dechard-Winchester Ro, Dechard, Franklin County, TN

Image Coming Soon
Bridge Street Bridge
Spanning Grand River, Michigan & Bridge Streets, Grand Rapids, Kent County

Image Coming Soon
Bridgeport Swing Span Bridge
Spanning Tennessee River, Bridgeport, Jackson County, AL

Image Coming Soon
Broad River Highway Bridge
State Route 72, spanning Broad River, Carlton, Madison County

Image Coming Soon
Broadway Bridge
Spanning Cherry Creek on Broadway at Speer Boulvea, Denver, Denver County, CO

Image Coming Soon
Bronx River Parkway Reservation
The Bronx to Kensico Dam, White Plains, Westchester County, NY

Image Coming Soon
Browntown Cotton Gin
SC Route 341 between Johnsonville & Lake City, Johnsonville, Florence County, SC

Image Coming Soon
Buena Vista Ford Bridge
Spanning Round Lick Creek on McClanahan Road, Carthage, Smith County, TN

Image Coming Soon
Burlington Northern Railroad Bridge
Spanning Willamette River at River Mile 6.9, Portland, Multnomah County, OR

Image Coming Soon
Burlington Woolen Mill Company
Dam, Winooski River, West of Bridge carrying U.S. Route, Burlington

Image Coming Soon
Burton Road Bridge
Spanning Little Weiser River, Cambridge, Washington County, ID

Image Coming Soon
Cache Creek Bridge
Spanning Cache Creek, Dam Road, Clearlake, Lake County

Image Coming Soon
Cairo Bridge
Spanning Ohio River, Cairo, Pulaski County, IL

Image Coming Soon
Calipso Bridge
Spanning Yellowstone River, Terry, Prairie County, MT

Image Coming Soon
Carroll Overhead Bridge
Altamont Pass Road, Livermore, Alameda County, CA

Image Coming Soon
Central Massachusetts Railroad
Linden Street Bridge, Spanning Linden Street, Waltham, Middlesex County

Image Coming Soon
Central Railroad of New Jersey
Newark Bay Lift Bridge, Spanning Newark Bay, Newark, Essex County

Image Coming Soon
Champlain Canal
Waterford Locks, U.S. Route 4, Waterford, Saratoga County

Image Coming Soon
Chesapeake & Ohio Canal
Lift Lock No. 66, State Route 51, Paw Paw, Allegany County

Image Coming Soon
Chesapeake & Ohio Canal
Lock 24, Riley's Lock Road, Riverside, Montgomery County

Image Coming Soon
Chesapeake & Ohio Canal
Lock No. 63 1/3, State Route 51, Paw Paw, Allegany County

Image Coming Soon
Chesapeake & Ohio Canal
Lock No. 64 2/3, State Route 51, Paw Paw, Allegany County

Image Coming Soon
Choate Bridge
Spanning Ipswich River at South Main Street, Ipswich, Essex County, MA

Image Coming Soon
Chrysler Center
Building No. 132, Highland Park, Wayne County, MI

Image Coming Soon
Chrysler Center
Building No. 135, Highland Park, Wayne County, MI

Image Coming Soon
Coldwater Bridge
Spanning Coldwater Creek on Old Railroad Bed Road, Fayetteville, Lincoln County, TN

Colorado Historic Bridges Survey
Denver, Denver County, CO,

Colorado Historic Bridges Survey
Denver, Denver County, CO,

Colorado Historic Bridges Survey
Denver, Denver County, CO,

Image Coming Soon
Commercial Street Bridge
Spanning Purgatoire River on Commercial Street, Trinidad, Las Animas County, CO

Common Drainage Culvert
Beneath Going-to-the-Sun Road, West Glacier, Flathead County, MT

Image Coming Soon
Congress Street Bascule Bridge
Spanning Fort Point Channel at Congress Street, Boston, Suffolk County, MA

Image Coming Soon
Connecticut Avenue Bridge
Spans Rock Creek & Potomac Parkway at Connecticut , Washington, District of Columbia, DC

Image Coming Soon
Conrail Bridge
Spanning Hackensack River, Kearny, Hudson County, NJ

Image Coming Soon
Coolidge Dam
Gila River, Peridot, Pinal County, AZ

Image Coming Soon
Copper State Mine
Maxville, Granite County, MT,

Image Coming Soon
Coram Bridge
Spanning Flathead River, Coram, Flathead County, MT

Image Coming Soon
County Road 130 Bridge
Spanning Gulf Creek, Rising Fawn, Dade County, GA

Image Coming Soon
Covington & Cincinnati Suspension Bridge
Spanning Ohio River, Covington, KY-Cincinnati, OH

Image Coming Soon
Crater Lake National Park Roads
Goodbye Creek Bridge, Spanning Goodbye Creek at Munson Valley Road, Crater Lake, Klamath County

Image Coming Soon
Crater Rim Drive
Volcano, Hawaii County, HI,

Image Coming Soon
Crow Creek Bridge
Spanning Crow Creek on Grove Way, Castro Valley, Alameda County, CA

Image Coming Soon
Curry Creek Bridge
Spanning Curry Creek at State Route 15, Jefferson, Jackson County, GA

Image Coming Soon
Davidson Ditch Waste Water Weir
Mile 63 of Alaska's Steese Highway, Chatanika, Fairbanks North Star Borough, AK

Image Coming Soon
Deansbury Bridge
Spanning South Platte River, Waterton, Lake County, CO

Image Coming Soon
Dearborn River High Bridge
Spanning Dearborn River, Augusta, Lewis and Clark County, MT

Image Coming Soon
Deerfield Bridge
Spanning Judith River, Danvers, Fergus County, MT

Dehmel Road Bridge
Spanning Cass River, Frankenmuth, Saginaw County, MI

Image Coming Soon
Delaware & Raritan Canal
Lock, On Delaware Canal, North of Hamilton, East of Geor

Image Coming Soon
Delaware & Raritan Canal
Locktender's House, North of Hamilton, East of George & East of Pumpin, New Brunswick

Image Coming Soon
Delaware & Raritan Canal
Outlet Locks, Between State Route 18 & Raritan River, New Brunswick, Middlesex County

Image Coming Soon
Delaware & Raritan Canal
Six Mile Run Culvert, .2 mile South of Blackwells Mills Road, East Millstone, Somerset County

Image Coming Soon
Delaware & Raritan Canal
Ten Mile Run Culvert, 1.5 miles South of Blackwells Road, East Millstone, Somerset County

Image Coming Soon
Delaware
Lackawanna & Western Railroad & Ferry Terminal, Ferry Slips & Bridges, Bounded by Observer, Newark & River Streets

Image Coming Soon
Delta Bridge
Spanning Gunnison River on U.S. 50, Delta, Delta County, CO

Image Coming Soon
Dentville Road Bridge
Spanning Hiawassee River on Dentville Road, Benton, Polk County, TN

Image Coming Soon
Denver & Rio Grande Western Railroad
Provo River Bridge, Spanning Provo River, Orem, Orem

Image Coming Soon
Department of Energy
Grand Junction Office, Earthen Dike, 2597 B3/4 Road, Grand Junction

Image Coming Soon
Double Intersection Warren Truss Bridge
Spanning Blackledge River, Colchester, New London County, CT

Image Coming Soon
Dowhait's Bridge
Bartow County Road 343, spanning Etowah River, Cartersville, Bartow County

Image Coming Soon
Dry Channel Bridge
Spanning Clark Fork, Thompson Falls, Sanders County, MT

Image Coming Soon
East Side Railroad Tunnel
Benefit Street to Seekonk River, Providence, Providence County, RI

Image Coming Soon
Eastern Canal
Boott Dam, Lowell, Middlesex County, MA

Image Coming Soon
Eastern Canal
Boott Penstock, Between Eastern & Merrimack Canals, Lowell, Middlesex County

Image Coming Soon
Edgefield County Bridge No. 3
Road S-63 spanning Log Creek, Pleasant Lane, Edgefield County, SC

Image Coming Soon
Eighteenth Street Bridge
Saint Louis, St. Louis City County, MO,

Image Coming Soon
Elson Bridge
Spanning Purgatoire River at County Road 36, El Moro, Las Animas County, CO

Image Coming Soon
Erie & Lackawanna Railroad Bridge
Spanning Hackensack River, Kearny, Hudson County, NJ

Image Coming Soon
Erie Canal (Enlarged)
Upper Mohawk River Aqueduct, Mohawk River, State Route 146, Rexford

Image Coming Soon
Erie Railway
Bergen Hill Open Cut, Palisade Avenue to Tonnele Avenue, Jersey City, Hudson County

Image Coming Soon
Erie Railway
New York Division, Bridge 8.04 (c.1875), Spanning Passaic River, Newark

Image Coming Soon
Erie Railway
New York Division, Bridge 8.04 (c.1900), Spanning Passaic River, Newark

Image Coming Soon
Exchange Bridge
Spanning Providence River, Providence, Providence County, RI

Image Coming Soon
Fall River Bridge
Spanning Fall River on CCC Camp Road, Ashton, Fremont County, ID

Image Coming Soon
Fannin County Road 222 Bridge
Spanning Toccoa River, Dial, Fannin County, GA

Image Coming Soon
Fifth Street Bridge
U.S. 50 at Colorado River, Grand Junction, Mesa County, CO

Image Coming Soon
Finderne Avenue Bridge
County Route 533, spanning Railroad tracks, Bridgewater Twp, Somerset County

Image Coming Soon
Fink Through-Truss Bridge
Hunterdon County Government Complex (moved to), Flemington, Hunterdon County, NJ

Image Coming Soon
Fishing Bridge
Spanning Yellowstone River at East Entrance Road, Yellowstone National Park, Park County, WY

Image Coming Soon
Fore River Bridge
Route 3A, spanning Fore River, Weymouth, Norfolk County

Image Coming Soon
Fort Benton Bridge
Spanning Missouri River, Fort Benton, Chouteau County, MT

Image Coming Soon
Fort Keogh Bridge
Spanning Yellowstone River, Miles City, Custer County, MT

Image Coming Soon
Four Mile Bridge
Spanning Arkansas River, Buena Vista, Chaffee County, CO

Image Coming Soon
Four Mile Bridge
Spanning Elk River on County Road 42, Steamboat Springs, Routt County, CO

Image Coming Soon
Fourteenth Street Viaduct
Fourteenth Street at Wazee Street, Denver, Denver County, CO

Image Coming Soon
Francis Street Bridge
Beneath Providence Union Station & Viaduct, Providence, Providence County, RI

Image Coming Soon
Frisco Charcoal Kilns
Kiln No. 2, State Route 21 (Frisco), Milford, Beaver County

Image Coming Soon
Frisco Charcoal Kilns
Kiln No. 3, State Route 21 (Frisco), Milford, Beaver County

Image Coming Soon
Frisco Charcoal Kilns
Kiln No. 4, State Route 21 (Frisco), Milford, Beaver County

Image Coming Soon
Frisco Charcoal Kilns
Smelter, State Route 21 (Frisco), Milford, Beaver County

Image Coming Soon
Frisco Charcoal Kilns
State Route 21 (Frisco), Milford, Beaver County, UT

Image Coming Soon
Fromberg Bridge
Spanning Clark's Fork of Yellowstone River, Fromberg, Carbon County, MT

Image Coming Soon
Gaspee Street Bridge
Gaspee Street at Providence Union Station Viaduct, Providence, Providence County, RI

General Dynamics Corporation Shipyard
Outfitting Pier No. 2, 97 East Howard Street, Quincy, Norfolk County

General Dynamics Corporation Shipyard
Wellman-Seaver Crane, 97 Howard Street, Quincy, Norfolk County

Image Coming Soon
Georgia-Carolina Memorial Bridge
State Highway 72, Elberton, Elbert County, GA

Image Coming Soon
Gervais Street Bridge
Gervais Street spanning Congaree River, Columbia, Richland County, SC

Image Coming Soon
Gibson Bridge
Spanning Watauga River on Herb Hodge Road, Watauga Flats, Washington County, TN

Image Coming Soon
Going-to-the-Sun Road
West Glacier, Flathead County, MT,

Image Coming Soon
Golden Gate Bridge
Spanning mouth of San Francisco Bay, San Francisco, San Francisco County, CA

Image Coming Soon
Gordon County Road 220 Bridge
Spanning Pine Log Creek on County Road 220, Fairmount, Gordon County, GA

Image Coming Soon
Gordon County Road No. 24 Bridge
Spanning New Town Creek at County Road 24, New Town, Gordon County, GA

Image Coming Soon
Grasmere Avenue Bridge
Spanning Railroad at Grasmere Avenue, Fairfield, Fairfield County, CT

Image Coming Soon
Great Smoky Mountains National Park Roads & Bridges
Luten Bridges, Gatlinburg, Sevier County, TN

Image Coming Soon
Great Smoky Mountains National Park Roads & Bridges
The Loop Over Bridge, Newfound Gap Road 8.6 miles from park entrance, Gatlinburg, Sevier County

Image Coming Soon
Grove Street Bridge
Grove Street, spanning Railroad tracks, Montclair, Essex County

Image Coming Soon
Hamilton Canal
Guard Gates, Lowell, Middlesex County, MA

Image Coming Soon
Hamilton Canal
Wasteway Gatehouse, Lowell, Middlesex County, MA

Image Coming Soon
Haralson County Bridge
County Road 189, spanning Tallapoosa River, Tallapoosa, Haralson County

Image Coming Soon
Hart County Bridge
State Route 181, spanning Savannah River, Hartwell, Hart County

Image Coming Soon
Headen Bridge
County Road 87, spanning Hiawassee River, Hiawassee, Towns County

Image Coming Soon
Heber Light & Power Company
Hydroelectric Plant, U.S. Route 40/189, Heber City, Wasatch County

Image Coming Soon
Hemlock Bridge
Spanning Black River on Warner Drive, Warner Twp, Clark County, WI

Image Coming Soon
Henefer Bridge
Spanning Weber River at Center Street, Henefer, Summit County, UT

Image Coming Soon
Historic Columbia River Highway
East Multnomah Falls Viaduct, East of Multnomah Falls, Troutdale, Multnomah County

Image Coming Soon
Historic Columbia River Highway
Mosier Twin Tunnels, East of Mosier, Troutdale, Multnomah County

Image Coming Soon
Historic Columbia River Highway
Troutdale, Multnomah County, OR,

Image Coming Soon
Historic Columbia River Highway
West Multnomah Falls Viaduct, West of Multnomah Falls on Historic Columbia River, Troutdale, Multnomah County

Image Coming Soon
Hole-in-the-Rock Trail
Running From Bluff Vicinity to Escalante, Garfield, Bluff, San Juan County

Image Coming Soon
Holyoke Bridge
Spanning Connecticut River, between Holyoke & Sout, Holyoke, Hampden County

Image Coming Soon
Honeydew Creek Bridge
Wilder Ridge Road, Honeydew, Humboldt County, CA

Image Coming Soon
Hoover Dam
Spanning Colorado River at Route 93, Boulder City, Clark County, NV

Image Coming Soon
Hortense Bridge
Spanning Chalk Creek on State Highway 162, Nathrop (historical), Chaffee County, CO

Image Coming Soon
Hot Springs Bridge
Spanning Bruneau River, Hot Springs Road, Bruneau, Owyhee County

Image Coming Soon
Hotchkiss Bridge
Spanning North Fork River on County Road 3400, Hotchkiss, Delta County, CO

Image Coming Soon
Houston Astrodome
8400 Kirby Drive, Houston, Harris County, TX

Image Coming Soon
Hume Lake Dam
Sequioa National Forest, Hume, Fresno County, CA

Image Coming Soon
Hydroelectric Power Development North Highlands
Thirty-eighth Street on Chattahoochee River, Columbus, Muscogee County, GA

Idaho National Engineering Laboratory
SPERT-I & Power Burst Facility Area, Scoville, Butte County, ID

Image Coming Soon
Indian Ford Bridge
London Mills, Fulton County, IL,

Image Coming Soon
Indiana Central Canal
Indianapolis Division, Parallel to West Street, Indianapolis, Marion County

Image Coming Soon
International Smelting & Refining Company
Tooele Smelter, Powerhouse, State Route 178, Tooele

Image Coming Soon
J. H. Millhollin Memorial Bridge
Spanning Ocmulgee River at Blackshear Road, Jacksonville, Coffee County, GA

Image Coming Soon
Jackson Street Bridge
Spanning Passaic River, Newark, Essex County, NJ

Image Coming Soon
Jefferson County Road 255 Bridge
Spanning Rocky Comfort Creek, Louisville, Jefferson County, GA

Image Coming Soon
Jefferson National Expansion Memorial Arch
Mississippi River between Washington & Poplar Stre, Saint Louis, St. Louis City County, MO

Image Coming Soon
John T. Cunningham Memorial Bridge
Spanning Cumberland River, on Old State Route 13, Clarksville, Montgomery County

Image Coming Soon
Jordan Covered Bridge
Spanning Thomas Creek, County Road 829, Scio, Linn County

Image Coming Soon
Judith River Bridge
Spanning Judith River, Moore, Fergus County, MT

Image Coming Soon
Kentucky Route 49 Bridge
Spanning Rolling Fork River, Bradfordsville, Marion County, KY

Image Coming Soon
Kentucky Route 762 Bridge
Spanning South Fork of Panther Creek, Owensboro, Daviess County, KY

Image Coming Soon
Keystone Bridge
Spanning South Platte River, Waterton, Jefferson County, CO

Image Coming Soon
Kinsey Bridge
Spanning Yellowstone River, Miles City, Custer County, MT

Image Coming Soon
Lake Street Bridge
Spanning Ruddiman Creek at Lake Shore Drive, Muskegon, Muskegon County, MI

Image Coming Soon
Lakeview Pumping Station
Clarendon & Montrose Avenues, Chicago, Cook County, IL

Image Coming Soon
Lawrence Canal
Lawrence Dam, Lawrence & Merrimack Canals, Lowell, Middlesex County

Image Coming Soon
Lenox Bridge
Spanning Obion River, Rural Road S8025, Lenox, Dyer County

Image Coming Soon
Lime Kiln Road Bridge
Spanning Shoal Creek, Neosho, Newton County, MO

Image Coming Soon
Linden Avenue Bridge
Spanning Purgatoire River on Linden Avenue, Trinidad, Las Animas County, CO

Image Coming Soon
Llagas Creek Bridge
Spanning Llagas Creek, Gilman Road at Holsclaw Roa, Gilroy, Santa Clara County

Image Coming Soon
Lockport Historic District
Chicago Sanitary & Ship Canal, Butterfly Dam, Lockport, Will County

Image Coming Soon
Lockport Historic District
Chicago Sanitary & Ship Canal, Swing Bridge, Sixteenth Street, Lockport

Image Coming Soon
Lockport Historic District
Illinois & Michigan Canal, Lockport, Will County, IL

Image Coming Soon
Lockport Historic District
Stone Arch Bridge, Spanning Des Plaines River at Ninth Street, Lockport, Will County

Image Coming Soon
Lockville Hydroelectric Plant
Deep River, 3.5 miles upstream from Haw River, Moncure, Chatham County

Image Coming Soon
London Mills Bridge
Spanning Spoon River, London Mills, Knox County, IL

Image Coming Soon
Louisville & Nashville Railroad
Union Station Train Shed, Water Street, opposite Lee Street, Montgomery

Image Coming Soon
Lover's Leap Lenticular Bridge
Spanning Housatonic River on Pumpkin Hill Road, New Milford, Litchfield County, CT

Image Coming Soon
Lowell Canal System
Pawtucket Dam, Merrimack River, above Pawtucket Falls, Lowell

Image Coming Soon
Lutens Bridge
County Road 228, Spanning Pine Log Creek, Cash, Gordon County

Image Coming Soon
Main Channel Bridge
Spanning Clark Fork, Thompson Falls, Sanders County, MT

Image Coming Soon
Manchester Street Bridge
Spanning Baraboo River on Manchester Street, Baraboo, Sauk County, WI

Image Coming Soon
Manzanola Bridge
State Highway 207, spanning Arkansas River, Manzanola, Crowley County

Image Coming Soon
Marietta Road Bridge
Marietta Road, Spanning Inman Railroad Yards, Atlanta, Fulton County

Image Coming Soon
Marshall Milling Company
Capitola Dam, French Broad River, Marshall, Madison County

Image Coming Soon
Massengill Bridge
Coal Creek Road, spanning Clinch River, Norris, Anderson County

Image Coming Soon
Maurice River Pratt Through-Truss Swing Bridge
Spanning Maurice River, Mauricetown, Cumberland County, NJ

Image Coming Soon
McPherson Bridge
Spanning Candies Creek at County Road A165, Eureka, Bradley County, TN

Image Coming Soon
Memphis Bridge
Spanning Mississippi River, Memphis, Shelby County, TN

Image Coming Soon
Merrimack Canal
Merrimack Dam, Lowell, Middlesex County, MA

Image Coming Soon
Merrimack Canal
Rolling Dam, Lowell, Middlesex County, MA

Image Coming Soon
Merritt Parkway
Beginning in Greenwich & running 38 miles to Strat, Greenwich, Fairfield County, CT

Image Coming Soon
Michigan Lake Superior Power Company
Portage Street, Sault Ste. Marie, Chippewa County, MI

Image Coming Soon
Middle Bridge
Spanning Osage River, Warsaw, Benton County, MO

Image Coming Soon
Milk River Bridge at Coberg
Spanning Milk River, Coburg, Blaine County, MT

Image Coming Soon
Mitchell-Griggs Road Bridge
Spannning Caney Fork on Mitchell-Griggs Road, Dixon, Webster County, KY

Image Coming Soon
Mobile Launcher One
Kennedy Space Center, Titusville, Brevard County, FL

Image Coming Soon
Moody Street Feeder
Moody Street, Lowell, Middlesex County, MA

Image Coming Soon
Moore Road Bridge
Spannning North Fork Creek at Moore Road, Unionville, Bedford County, TN

Image Coming Soon
Morris Canal
Cassedy's Store, Waterloo, Sussex County, NJ

Image Coming Soon
Morris Canal
Delaware River Portal, Phillipsburg, Warren County, NJ

Image Coming Soon
Morris Canal
Greene's Mill, Stewartsville, Warren County, NJ

Image Coming Soon
Morris Canal
Inclined Plane 9 West, Port Warren, Warren County, NJ

Image Coming Soon
Morris Canal
Phillipsburg, Warren County, NJ,

Image Coming Soon
Morris Canal
Rockport, Warren County, NJ,

Image Coming Soon
Morris Canal
Scotch Turbine, Hopatcong, Sussex County, NJ

Image Coming Soon
Morris Canal
Spillway, Phillipsburg, Warren County, NJ

Image Coming Soon
Morris Canal
Stewartsville, Warren County, NJ,

Image Coming Soon
Morris Canal
Washington, Warren County, NJ,

Image Coming Soon
Morris Canal
Waterloo, Sussex County, NJ,

Image Coming Soon
Mountain Dell Dam
Parley's Canyon, Northwest side of I-80, West of S, Salt Lake City

Image Coming Soon
Murtaugh Bridge
Murtaugh, Jerome County, ID,

Image Coming Soon
Natchez Trace Parkway
Located between Natchez, MS & Nashville, TN, Tupelo

Image Coming Soon
Nepesta Bridge
Spanning Arkansas River on County Road 613, Boone, Pueblo County, CO

Image Coming Soon
Neshanic Station Lenticular Truss Bridge
State Route 567, spanning South Branch of Raritan , Neshanic Station, Somerset County

Image Coming Soon
New Castle & Frenchtown Railroad
New Castle, New Castle County, DE,

Image Coming Soon
New Croton Dam & Reservoir
Croton River, Croton-on-Hudson, Westchester County, NY

Image Coming Soon
New Portland Suspension Bridge
Spanning Carrabasset River, New Portland, Somerset County, ME

Image Coming Soon
New York
New Haven & Hartford Railroad, Fort Point Channel Rolling Lift Bridge, Spanning Fort Point Channel, Boston

Image Coming Soon
New York
New Haven & Hartford Railroad, Groton Bridge, Spanning Thames River between New London & Groton, New London

Image Coming Soon
New York
New Haven & Hartford Railroad, Mystic River Bridge, Spanning Mystic River between Groton & Stonington, Groton

Image Coming Soon
New York
New Haven & Hartford Railroad, Niantic Bridge, Spanning Niantic River between East Lyme & Waterfo, East Lyme

Image Coming Soon
New York
New Haven & Hartford Railroad, Shaw's Cove Bridge, Spanning Shaw's Cove, New London

Image Coming Soon
Newsom's Mill Bridge
Spanning Harpeth River, Newsom's Station Road, Nashville, Davidson County

Image Coming Soon
Niantic River Swing Bridge
Spanning Niantic River between East Lyme & Waterfo, East Lyme, New London County, CT

Image Coming Soon
Nineteenth Street Bridge
Spanning South Platte River at Nineteenth Street, Denver, Denver County, CO

Image Coming Soon
Nisqually Glacier Bridge
Spanning Nisqually River at Nisqually Road, Longmire, Pierce County, WA

Image Coming Soon
Nisqually Road
Between Longmire & Paradise, WA, Longmire, Pierce County

Image Coming Soon
Nizina Bridge
Mile 8, Nizina Road, McCarthy, Valdez-Cordova Census Area

Image Coming Soon
North Fork Bridge
Spanning North Fork of Licking River, Milford, Bracken County, KY

Image Coming Soon
Northeast Railroad Corridor
Amtrak route between CT & MA state lines, Providence, Providence County, RI

Image Coming Soon
Northeast Railroad Corridor
Amtrak Route between New York/Connecticut & Connec, New Haven, New Haven County, CT

Image Coming Soon
Northeast Railroad Corridor
Amtrak Route between Pennsylvania/New Jersey & New, Newark, Essex County, NJ

Image Coming Soon
Northeast Railroad Corridor
Amtrak Route between RI/MA State Line & South Stat, Boston, Suffolk County, MA

Image Coming Soon
Northern Avenue Swing Bridge
Spanning Fort Point Channel at boundary between Bo, Boston, Suffolk County, MA

Image Coming Soon
Northern Canal
Great River Wall, Lowell, Middlesex County, MA

Image Coming Soon
Northern Canal
Pawtucket & Ford Streets, Lowell, Middlesex County, MA

Image Coming Soon
Northern Canal
Waste Gates, Lowell, Middlesex County, MA

Image Coming Soon
Northwestern Elevated Railroad
Interlocking Tower, Wilson Avenue, Chicago, Cook County

Image Coming Soon
Old Croton Aqueduct
Entrance Entablature, New Croton Reservoir, Yorktown Heights, Westchester County

Image Coming Soon
Old Croton Aqueduct
Indian Creek Culvert, Reservoir & Quaker Bridge Roads, Crotonville, Ossining

Image Coming Soon
Old Croton Aqueduct
Jewels Brook Culvert, Spanning Station Road, Irvington, Westchester County

Image Coming Soon
Old Croton Aqueduct
Mill River Culvert, U.S. Route 9 at Sleepy Hollow Cemetery, Tarrytown, Westchester County

Image Coming Soon
Old Croton Aqueduct
Mill River Waste Weir, U.S. Route 9 at Sleepy Hollow Cemetery, Tarrytown, Westchester County

Image Coming Soon
Old Croton Aqueduct
Northern Waste Weir, Snowden Avenue & Van Wick Street, Ossining, Westchester County

Image Coming Soon
Old Croton Aqueduct
Quarry Railroad Bridge, Aqueduct Lane at Williams Street, Hastings-on-Hudson, Westchester County

Image Coming Soon
Old Croton Aqueduct
Saw Mill River Culvert, Spanning Nepperhan Avenue, Yonkers, Westchester County

Image Coming Soon
Old Croton Aqueduct
Sing Sing Kill Bridge, Spanning Aqueduct Street & Broadway, Ossining, Westchester County

Image Coming Soon
Old Croton Aqueduct
Ventilator Number 9, Spring & Everett Streets, Ossining, Westchester County

Image Coming Soon
Old Steel Bridge
Spanning Flathead River on Steel Bridge Road, Kalispell, Flathead County, MT

Image Coming Soon
Oldtown Bridge
Spanning Pend Oreille River, U.S. Highway 2, Oldtown, Bonner County

Image Coming Soon
Osage River Bridge
Spanning Osage River on State Highway M-13, Osceola, St. Clair County, MO

Image Coming Soon
Osceola Bridge
Spanning Osage River, Osceola, St. Clair County, MO

Image Coming Soon
Osgood Bridge
Spanning Beebe River, Perch Pond Road, Campton Station, Grafton County

Image Coming Soon
Pacheco Creek Bridge
San Felipe Road , spanning Pacheco Creek, San Felipe, Santa Clara County

Image Coming Soon
Paradise Road Bridge
Spanning Little Platte River, Paradise, Clay County, MO

Image Coming Soon
Paragon Bridge
Spanning Yellowstone River, Miles City, Custer County, MT

Image Coming Soon
Patch Street Bridge
Spanning Kohanza Brook on Patch Street, Danbury, Fairfield County, CT

Image Coming Soon
Path Transit System Bridge
Spanning Hackensack River, Kearny, Hudson County, NJ

Image Coming Soon
Pearl Street Bridge
Spanning Grand River at Pearl Street, Grand Rapids, Kent County, MI

Image Coming Soon
Pearle Cotton Mill & Dam
Elbert County Road 245, Elberton, Elbert County, GA

Image Coming Soon
Pecatonica River Bridge
Spanning Pecatonica River at Winnesheik Road, Freeport, Stephenson County, IL

Image Coming Soon
Pennsylvania Railroad Improvements
Liberty Street to Baltimore & Ohio Railroad, Wilmington, New Castle County, DE

Image Coming Soon
Petrieville Road Bridge
Spanning Grand River, Eaton Township, Eaton County, MI

Image Coming Soon
Pigtail Bridge
Hot Springs, Custer County, SD,

Image Coming Soon
Pine Street Bridge
Pine Street (State Route 66) , spanning Cumberland , Pineville, Bell County

Image Coming Soon
Pineau Placer Mining Camp
Reservoir & Cabin, Goldcreek, Granite County, MT

Image Coming Soon
Plante Grist Mill
U.S. Route 44, Chepachet, Providence County, RI

Image Coming Soon
Poinsett Bridge
SC Route 42, 2 miles Northwest of Route 11, 2.5 mi, Tigerville

Image Coming Soon
Ponakin Road Bridge
Spanning Nashua River on Ponakin Road, Lancaster, Worcester County, MA

Image Coming Soon
Portland & Southwestern Railroad Tunnel
Willamette Meridian, Chapman, Columbia County, OR

Image Coming Soon
Post Office Covered Walkway
Providence, Providence County, RI,

Image Coming Soon
Power Flume No. 1
Tacoma, La Plata County, CO,

Image Coming Soon
Promenade Street Bridge
Spanning Woonasquatucket & Moshassuck Rivers, Providence, Providence County, RI

Image Coming Soon
Pulaski Skyway
Spanning Passaic & Hackensack Rivers, Jersey City, Hudson County, NJ

Image Coming Soon
Purdon Crossing Bridge
Nevada City, Nevada County, CA,

Image Coming Soon
Red Bridge
Spanning North Benson Creek, Frankfort, Franklin County, KY

Image Coming Soon
Redridge Steel Dam
Salmon Trout River, Beacon Hill, Houghton County, MI

Image Coming Soon
Rehoboth Avenue Bridge
State Route 1A (Rehoboth Avenue) over Lewes & Reho, Rehoboth Beach, Sussex County, DE

Image Coming Soon
Riddle Bridge
Spanning Gasconada River, Dixon, Pulaski County, MO

Image Coming Soon
Riverside Bridge
Weaver Road spanning South Fork Holston River, Bluff City, Sullivan County, TN

Image Coming Soon
Roberts Bluff Bridge
.5 mile East of Blackwater, Blackwater, Cooper County, MO

Image Coming Soon
Roscoe Bridge
Spanning Osage River on State Highway E, Roscoe, St. Clair County, MO

Image Coming Soon
Roubideau Bridge
Spanning Gunnison River at County Road G50R, Delta, Delta County, CO

Image Coming Soon
Round Lake Logging Dam
Flambeau River, South Fork, Park Falls, Price County

Image Coming Soon
Roundup Bridge
Spanning Musselshell River, Roundup, Musselshell County, MT

Image Coming Soon
Rustic Bridge
NPS Route No. 13 spanning Crum Elbow Creek, Hyde Park, Dutchess County, NY

Image Coming Soon
S. U. M. Hydroelectric Plant
McBride Avenue, Paterson, Passaic County, NJ

Image Coming Soon
Sacramento River Bridge
Spanning Sacramento River South of Locke, Isleton, Sacramento County, CA

Image Coming Soon
Saddlehorn Area
5 miles inside West entrance, Fruita, Mesa County, CO

Image Coming Soon
Saluda County Bridge No. 4
Road S-26 spanning Clouds Creek, Jones Crossroads, Saluda County, SC

Image Coming Soon
Sample's Crossing Bridge
Spanning Judith River, Danvers, Fergus County, MT

Image Coming Soon
San Antonio Creek Bridge
State Highway 1, Lompoc, Santa Barbara County, CA

Image Coming Soon
San Francisco Cable Railway
Washington & Mason Streets, San Francisco, San Francisco County, CA

Image Coming Soon
San Francisco Oakland Bay Bridge
Spanning San Francisco Bay, San Francisco, San Francisco County, CA

Image Coming Soon
San Roque Canyon Bridge
State Highway 192, Santa Barbara, Santa Barbara County, CA

Image Coming Soon
Sanders Ferry Bridge
State Highway 184, Spanning Savannah River, Savannah River, Anderson County

Image Coming Soon
Savannah & Ogeechee Barge Canal
Between Ogeechee & Savannah Rivers, Savannah, Chatham County, GA

Image Coming Soon
Saxton Bridge
Spanning Gunnison River on Delta County Road 650R, Delta, Delta County, CO

Image Coming Soon
Scotts Bluff Summit Road
Gering, Scotts Bluff County, NE,

Image Coming Soon
Seaboard Coast Line Railroad Bridge
Spanning Savannah River, Savannah River, Abbeville County, SC

Image Coming Soon
Second Avenue Bridge
Spanning Oostanaula on State Route 101 (Second Ave, Rome, Floyd County, GA

Image Coming Soon
Seddon Island Scherzer Rolling Lift Bridge
Spanning Garrison Channel from Tampa to Sedden Isl, Tampa, Hillsborough County, FL

Image Coming Soon
Seven Mile Bridge
Linking Florida Keys, Knight Key, Monroe County, FL

Image Coming Soon
Silver King Mining Company
Ore Mill, Park City West, Park City, Summit County

Image Coming Soon
Siuslaw River Bridge
Spanning Siuslaw River, Richardson Road, County Ro, Walton

Image Coming Soon
Sixteenth Street Bridge
Spanning Piney Branch Parkway, Washington, District of Columbia, DC

Image Coming Soon
Smith Bridge
Spanning Nottely River on Dooley Road (County Road, Blairsville, Union County, GA

Image Coming Soon
Smith-McGee Bridge
Georgia Route 181, Hartwell, Hart County, GA

Image Coming Soon
Snowden Bridge
Spanning Missouri River, Nohly, Richland County, MT

Image Coming Soon
Sock Road Bridge
Spanning Beaver Dam River, Lowell, Dodge County, WI

Image Coming Soon
South Broad Street Bridge
Spanning Elizabeth River, Elizabeth, Union County, NJ

Image Coming Soon
South Fork Trinity River Bridge
State Highway 299 spanning South Fork Trinity Rive, Salyer, Trinity County, CA

Image Coming Soon
Southern Pacific Railroad
Ogden-Lucin Cutoff Trestle, Spanning Great Salt Lake, Brigham City, Box Elder County

Image Coming Soon
Springdale Bridge
Federal Aid Secondary Route 563, Springdale, Park County, MT

Image Coming Soon
Spruce Street Bridge
East Spruce Street, 500 Block, spanning Power Cana, Sault Ste. Marie

Image Coming Soon
St. Mary River Bridge & Siphon
Spanning St. Mary River, Babb, Glacier County, MT

Image Coming Soon
Stanley R. Mickelsen Safeguard Complex
Resident Engineers Office Building, Southeast of intersection of PAR Access Road & Fou, Nekoma, Cavalier County

Image Coming Soon
Starnes Bridge
Spanning Eagle Creek, Holbrook, Grant County, KY

Image Coming Soon
State Bridge
Spanning Rio Grande River, Del Norte, Rio Grande County, CO

Image Coming Soon
Steel Bridge
Spanning Jackson Road at Confederate Avenue, Vicksburg, Warren County, MS

Image Coming Soon
Steel Pier
Boardwalk at Virginia Avenue, Atlantic City, Atlantic County, NJ

Image Coming Soon
Steel Truss Bridge
Spanning Osage River on State Highway 7, Fairfield, Benton County, MO

Image Coming Soon
Sudbury River Aqueduct
Echo Bridge, Spanning Charles River at Upper Newton Falls, Newton, Middlesex County

Image Coming Soon
Suger Creek Bridge
Spanning Suger Creek, Hopkinsville, Christian County, KY

Image Coming Soon
Summer Street Retractile Bridge
Spanning Fort Point Channel at Summer Street, Boston, Suffolk County, MA

Image Coming Soon
Sunset Bridge
Spanning Pomme de Terre River, Bolivar, Polk County, MO

Image Coming Soon
Surprise School Bridge
Spanning South Grand River, Gaines, Henry County, MO

Image Coming Soon
Swann Bridge
Spanning Locust Fork of Black Warrior River, Swann, Cleveland, Blount County

Image Coming Soon
Swink Bridge
Spanning Arkansas River (County Road 24.5), Swink, Otero County, CO

Image Coming Soon
Tallassee Shoals Hydroelectric Facility
Middle Oconee River, Athens, Clarke County, GA

Image Coming Soon
Tenth Street Bridge
Spanning Missouri River, Great Falls, Cascade County, MT

Image Coming Soon
Terminal Dam
Tacoma, La Plata County, CO,

Image Coming Soon
Thatcher Bridge
Spanning Bear River, Thatcher, Franklin County, ID

Image Coming Soon
Thirty-first Street Overflow Structure
Thirty-first Street, Denver, Denver County, CO

Image Coming Soon
Tifton Bridge
U.S. Route 82/State Route 50 over Seaboard Coastli, Tifton, Tift County, GA

Image Coming Soon
Tobin Highway Bridge
Plumas, Plumas County, CA,

Image Coming Soon
Toelles Road Bridge
Spanning Quinnipiac River, Wallingford, New Haven County, CT

Image Coming Soon
Tongue River Bridge
Spanning Tongue River, Miles City, Custer County, MT

Image Coming Soon
Turtleville Iron Bridge
Spanning Turtle Creek, on Lathers Road, Beloit, Rock County

Image Coming Soon
Twentieth Street Viaduct
Spans Platte River Valley between Thirty-third Ave, Denver, Denver County, CO

Image Coming Soon
Twenty-first Street Bridge
Spanning Railroad tracks at Twenty-first Street, Saint Louis, St. Louis City County, MO

Image Coming Soon
Twin Falls-Jerome Bridge
U.S. Highway 93 Spanning Snake River, Twin Falls, Twin Falls County, ID

Image Coming Soon
U. S. 23 Middle Bridge
Spanning Levisa Fork, Pikeville, Pike County, KY

Image Coming Soon
Uintah Railway
Whiskey Creek Trestle, Baxter Pass Road & Whiskey Creek Road, Rangely, Rio Blanco County

Image Coming Soon
Union Elevated Railroad
Adams Street Station, Wabash Avenue, Chicago, Cook County

Image Coming Soon
Union Elevated Railroad
Clark Street Station, Lake Street, Chicago, Cook County

Image Coming Soon
Union Elevated Railroad
Randolph-Wabash Avenue Station, Randolph Street & Wabash Avenue, Chicago, Cook County

Image Coming Soon
Union Elevated Railroad
Randolph-Wells Street Station, Randall & Wells Street, Chicago, Cook County

Image Coming Soon
Union Elevated Railroad
Union Loop, Wells, Van Buren, Lake Streets & Wabash Avenue

Image Coming Soon
Union Pacific Railroad
Gateway Bridge, Spanning Weber Canyon, Ogden, Weber County

Image Coming Soon
Union Station Viaduct
Spanning Gaspee, Francis, Promenade & Canal Street, Providence

Image Coming Soon
Van Duzen Bridge
Spanning Van Duzen River at State Highway 36, Carlotta, Humboldt County, CA

Image Coming Soon
Vicksburg National Military Park Roads & Bridges
Melan Arch Bridges, Spanning various tributaries at Confederate Avenue, Vicksburg, Warren County

Image Coming Soon
Victor Bridge
Spanning Bitterroot River, Victor, Ravalli County, MT

Image Coming Soon
Vieley Bridge
Spanning North Fork Vermillion River at Township R, Saunemin, Livingston County, IL

Image Coming Soon
Waddell "A" Truss Bridge
Spanning Lin Branch Creek, Trimble, Clinton County, MO

Walnut Street Bridge
Spanning Tennessee River at Market Street, Chattanooga, Hamilton County, TN

Image Coming Soon
Warsaw Bridge
Spanning South Grand River, Warsaw, Benton County, MO

Image Coming Soon
Washington Avenue Bridge
Spanning Missouri Pacific Railroad tracks, Main & , Sedalia, Pettis County

Image Coming Soon
Washington Avenue Lenticular Truss Bridge
Spanning Mad River, Waterbury, New Haven County, CT

Image Coming Soon
Weaver Road Bridge
Spanning Paint Rock Creek on Weaver Road (County R, Kingston, Roane County, TN

Image Coming Soon
West Knight Street Bridge
Spanning Spring Brook (west of Knight Street), Eaton Rapids, Eaton County, MI

Image Coming Soon
West Main Street Bridge
Spanning South branch of Raritan River, Clinton, Hunterdon County, NJ

Image Coming Soon
Western Canal
Guard Gates, Western & Northern Canals, Lowell, Middlesex County

Image Coming Soon
Western Canal
Hickey Hall Dam, Lowell, Middlesex County, MA

Image Coming Soon
Western Canal
Tremont Gatehouse, Western & Lawrence Canals, Lowell, Middlesex County

Image Coming Soon
White Bridge
Spanning Crum Elbow Creek, Hyde Park, Dutchess County, NY

Wickiup Dam
Dikes and Spillway, Deschutes River, La Pine, Deschutes County

Image Coming Soon
William's Bend Bridge
Spanning Pomme de Terre River, Hermitage, Hickory County, MO

Image Coming Soon
Williamsburg Bridge
Spanning Cumberland River, Williamsburg, Whitley County, KY

Image Coming Soon
Wolf Creek Bridge
Spanning Missouri River, Craig, Lewis and Clark County, MT

Image Coming Soon
Woody Allen Road Bridge
Spanning Oothalooga Creek at County Road 316, Adairsville, Bartow County, GA

Image Coming Soon
Woonasquatucket Bridge
Spanning Woonasquatucket River, Providence, Providence County, RI

Image Coming Soon
York Bridge
Federal Aid Secondary Route 280, Helena, Lewis and Clark County, MT

Image Coming Soon
Zion-Mount Carmel Highway
Pine Creek Bridge, Spanning Pine Creek on Zion-Mount Carmel Highway, Springdale, Washington County

Image Coming Soon
Zion-Mount Carmel Highway
Springdale, Washington County, UT,

Image Coming Soon
Zion-Mount Carmel Highway
Tunnel, Two miles east of Zion Canyon Scenic Drive, Springdale, Washington County

Image Coming Soon
Zion-Mount Carmel Highway
Virgin River Bridge, Spanning North Fork of Virgin River on Zion-Mount , Springdale, Washington County