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Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Streets, Los Angeles, Los Angeles County, CA

Zanja No. 3, Brick Culvert, Alameda Street between Temple & Aliso Stre...

Significance: Zanja No. 3 represents a portion of the original Los Angeles water system. The zanjas, a series of ditches from the Los Angeles River, were begun immediately after the establishment of the pueblo... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenues, Trenton, Mercer County, NJ

Delaware & Raritan Canal, Lock 6A, Between Greenwood & Hamilton Avenue...

Significance: Lock 6A is a representative example of canal lock design and construction of its time. It was the last lock to be constructed on the Delaware and Raritan Canal, which was first placed in operatio... More

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (State Route 3034), Harrisburg, Dauphin County, PA

Walnut Street Bridge, Spanning Susquehanna River at Walnut Street (Sta...

Significance: The bridge is a representative example of a late 19th century factory-manufactured roadway bridge. The bridge consists of 15 pin-connected wrought-iron Baltimore-type through-truss spans manufactu... More