Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The design and history of these four parallel, double-track, double-leaf bridges is the most unusual of the bridges built in the Heritage Corridor. Survey number: HAER IL-99 Building/structure d More
Significance: The Butterfly Dam was constructed in the middle of the Chicago Sanitary and Ship Canal for the purpose of providing flood protection for Joliet and other points on the canal west of Lockport. The More
Significance: The Butterfly Dam was constructed in the middle of the Chicago Sanitary and Ship Canal for the purpose of providing flood protection for Joliet and other points on the canal west of Lockport. The More
Significance: The Butterfly Dam was constructed in the middle of the Chicago Sanitary and Ship Canal for the purpose of providing flood protection for Joliet and other points on the canal west of Lockport. The More
Significance: The Butterfly Dam was constructed in the middle of the Chicago Sanitary and Ship Canal for the purpose of providing flood protection for Joliet and other points on the canal west of Lockport. The More
Significance: The Butterfly Dam was constructed in the middle of the Chicago Sanitary and Ship Canal for the purpose of providing flood protection for Joliet and other points on the canal west of Lockport. The More
Significance: The Butterfly Dam was constructed in the middle of the Chicago Sanitary and Ship Canal for the purpose of providing flood protection for Joliet and other points on the canal west of Lockport. The More
Significance: The Butterfly Dam was constructed in the middle of the Chicago Sanitary and Ship Canal for the purpose of providing flood protection for Joliet and other points on the canal west of Lockport. The More
Significance: Located at the terminus of the Chicago Sanitary and Ship Canal, the Lockport Lock has a 40' lift, reportedly making it the highest lift lock at the time of its completion in 1910. The Lockport Lo More
Significance: Located at the terminus of the Chicago Sanitary and Ship Canal, the Lockport Lock has a 40' lift, reportedly making it the highest lift lock at the time of its completion in 1910. The Lockport Lo More
Significance: Located at the terminus of the Chicago Sanitary and Ship Canal, the Lockport Lock has a 40' lift, reportedly making it the highest lift lock at the time of its completion in 1910. The Lockport Lo More
Significance: This bridge is one of the seven surviving 1899 wing bridges built across the Sanitary and Ship Canal. Survey number: HAER IL-79 Building/structure dates: 1900 Initial Construction
Significance: This bridge is one of the seven surviving 1899 wing bridges built across the Sanitary and Ship Canal. Survey number: HAER IL-79 Building/structure dates: 1900 Initial Construction
Significance: This bridge is one of the seven surviving 1899 wing bridges built across the Sanitary and Ship Canal. Survey number: HAER IL-79 Building/structure dates: 1900 Initial Construction
Significance: The Lockport Controlling Works, originally consisting of a bear-trap dam and sluice gates, allowing the Sanitary District to discharge water from the Chicago Sanitary and Ship Canal into the Des P More
Significance: The Lockport Controlling Works, originally consisting of a bear-trap dam and sluice gates, allowing the Sanitary District to discharge water from the Chicago Sanitary and Ship Canal into the Des P More
Significance: The Lockport Controlling Works, originally consisting of a bear-trap dam and sluice gates, allowing the Sanitary District to discharge water from the Chicago Sanitary and Ship Canal into the Des P More
Significance: The Butterfly Dam was built to help control the flow of water in the Chicago Sanitary and Ship Canal. Sanitary District engineers based the design of the Butterfly Dam on the butterfly valve, whi More
Significance: The Butterfly Dam was built to help control the flow of water in the Chicago Sanitary and Ship Canal. Sanitary District engineers based the design of the Butterfly Dam on the butterfly valve, whi More
Significance: The Swing Bridge permits the flow of vehicular traffic along Division Street to cross the Chicago S&S Canal. The bridge consists of twelve sections, with the pivoting mechanism located in the fif More
Significance: The Swing Bridge permits the flow of vehicular traffic along Division Street to cross the Chicago S&S Canal. The bridge consists of twelve sections, with the pivoting mechanism located in the fif More
Significance: The Swing Bridge permits the flow of vehicular traffic along Division Street to cross the Chicago S&S Canal. The bridge consists of twelve sections, with the pivoting mechanism located in the fif More
Significance: The Swing Bridge permits the flow of vehicular traffic along Division Street to cross the Chicago S&S Canal. The bridge consists of twelve sections, with the pivoting mechanism located in the fif More
Significance: The Swing Bridge permits the flow of vehicular traffic along Division Street to cross the Chicago S&S Canal. The bridge consists of twelve sections, with the pivoting mechanism located in the fif More
Significance: The Swing Bridge permits the flow of vehicular traffic along Division Street to cross the Chicago S&S Canal. The bridge consists of twelve sections, with the pivoting mechanism located in the fif More
Significance: The Swing Bridge permits the flow of vehicular traffic along Division Street to cross the Chicago S&S Canal. The bridge consists of twelve sections, with the pivoting mechanism located in the fif More
Significance: The Lockport Power House and Dam were built as part of an extension to the Chicago Sanitary and Ship Canal after the Illinois State Legislature authorized the Sanitary District to develop a water More
Significance: The Lockport Power House and Dam were built as part of an extension to the Chicago Sanitary and Ship Canal after the Illinois State Legislature authorized the Sanitary District to develop a water More
Significance: The Lockport Power House and Dam were built as part of an extension to the Chicago Sanitary and Ship Canal after the Illinois State Legislature authorized the Sanitary District to develop a water More
Significance: The Lockport Power House and Dam were built as part of an extension to the Chicago Sanitary and Ship Canal after the Illinois State Legislature authorized the Sanitary District to develop a water More
Significance: The Lockport Power House and Dam were built as part of an extension to the Chicago Sanitary and Ship Canal after the Illinois State Legislature authorized the Sanitary District to develop a water More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Of the original fifteen bridges built across the Sanitary and Ship Canal, only seven survive; the Romeo Road Bridge is the oldest of the highway swing spans constructed by the Sanitary District of More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: Built by the City of Chicago as a PWA project in 1940, the substructure was constructed by M.J. McDermott & Company and the superstructure was erected by the C.L. Strobel Construction Company of C More
Significance: This bridge crossing the Sanitary and Ship Canal was originally built for the Chicago, Madison & Northern Railroad Bridge. When it was completed in 1900 it contained the longest swing span of the More
Significance: This bridge crossing the Sanitary and Ship Canal was originally built for the Chicago, Madison & Northern Railroad Bridge. When it was completed in 1900 it contained the longest swing span of the More
Significance: This bridge crossing the Sanitary and Ship Canal was originally built for the Chicago, Madison & Northern Railroad Bridge. When it was completed in 1900 it contained the longest swing span of the More
Significance: To deal with Chicago's water supply and pollution issues, the engineers of the Sanitary District devised an innovative approach that involved diluting the city's sewage with water drawn from Lake More
Significance: To deal with Chicago's water supply and pollution issues, the engineers of the Sanitary District devised an innovative approach that involved diluting the city's sewage with water drawn from Lake More
Significance: To deal with Chicago's water supply and pollution issues, the engineers of the Sanitary District devised an innovative approach that involved diluting the city's sewage with water drawn from Lake More
Significance: To deal with Chicago's water supply and pollution issues, the engineers of the Sanitary District devised an innovative approach that involved diluting the city's sewage with water drawn from Lake More
Significance: To deal with Chicago's water supply and pollution issues, the engineers of the Sanitary District devised an innovative approach that involved diluting the city's sewage with water drawn from Lake More
Significance: To deal with Chicago's water supply and pollution issues, the engineers of the Sanitary District devised an innovative approach that involved diluting the city's sewage with water drawn from Lake More
Significance: This bridge is one of seven surviving swing bridges built in 1899 across the Sanitary and Ship Canal. Survey number: HAER IL-39 Building/structure dates: 1899 Initial Construction
Significance: This bridge is one of seven surviving swing bridges built in 1899 across the Sanitary and Ship Canal. Survey number: HAER IL-39 Building/structure dates: 1899 Initial Construction
Significance: This bridge is one of seven surviving swing bridges built in 1899 across the Sanitary and Ship Canal. Survey number: HAER IL-39 Building/structure dates: 1899 Initial Construction
Significance: This bridge is one of seven surviving swing bridges built in 1899 across the Sanitary and Ship Canal. Survey number: HAER IL-39 Building/structure dates: 1899 Initial Construction
Significance: This bridge is one of seven surviving swing bridges built in 1899 across the Sanitary and Ship Canal. Survey number: HAER IL-39 Building/structure dates: 1899 Initial Construction