|Elevation||623 ft (190 m)|
|Time zone||UTC-6 (CST)|
|• Summer (DST)||UTC-5 (CDT)|
Sag Bridge, Illinois is a populated place in southwestern Cook County, Illinois.Sag Bridge is an important waterway junction between the Calumet Sag Channel and the Chicago Sanitary and Ship Canal. It is also the junction of IL 83 (Kingery Highway) and IL 171 (Archer Avenue) which meet at Sag Bridge to cross the Calumet Sag Channel together on the eponymous bridge. The community was named for a predecessor of the present bridge. It is within the village limits and postal delivery zone of Lemont, Illinois.
Other than the bridge for which it was named and the canal that the bridge crosses, the most significant feature of the community is the historic St. James at Sag Bridge Catholic Church, listed on the National Register of Historic Places.
Sag Bridge exists at a significant geophysical point, at the confluence of the Sag Outlet and DesPlaines Outlet from historic Lake Chicago, which joined at this point to form the Chicago Outlet River and eventually flow into the Illinois River and the Mississippi River. Those two outlets isolated a portion of the Valparaiso Moraine called Mount Forest Island, much of which has been preserved in its natural state as the Palos Divisionof the Forest Preserve District of Cook County.
Later, several Native American trails passed through the area, including the ancient trail that evolved into modern Archer Avenue (Illinois Route 171).
The high bluff of Mount Forest Island overlooking this critical location has served as a lookout for centuries. The French fort on the site was visited by Father Jacques Marquette on his journeys on the Des Plaines River several times in 1673.
The community was settled by workers building the Illinois and Michigan Canal, who established their historic church in 1833. Rock quarries developed there in the mid-19th century due to the combination of an abundant supply of quality stone, and convenient transportation on the nearby canal. Though the quarries themselves no longer operate, businesses selling stone products continue in the Sag Bridge area today.
Nothing remains of the original bridge at Sag Bridge, except for an isolated remnant of Old Archer Avenue leading to the south bank of its former site, which today provides access for fishing and hiking in the Sag Quarriesarea of the Forest Preserve District of Cook County.
On March 27, 1991, a tornado caused significant damage to Lemont and Sag Bridge, including the historic St. James Church and cemetery.
The most recent bridge at Sag Bridge was built in 1934, and carries both IL 83 and IL 171 across the Calumet Sag Channel. This classic, 4-lane Pennsylvania through truss bridge is still structurally sound today, however it is rated "Functionally obsolete" due to growing traffic volumes, especially at the congested awkward 5-way signalized intersection just north of the bridge where routes 83 and 171 diverge.
The Illinois and Michigan Canal connected the Great Lakes to the Mississippi River and the Gulf of Mexico. In Illinois, it ran 96 miles (154 km) from the Chicago River in Bridgeport, Chicago to the Illinois River at LaSalle-Peru. The canal crossed the Chicago Portage, and helped establish Chicago as the transportation hub of the United States, before the railroad era. It was opened in 1848. Its function was largely replaced by the wider and shorter Chicago Sanitary and Ship Canal in 1900, and it ceased transportation operations with the completion of the Illinois Waterway in 1933.
Cook County is the most populous county in the U.S. state of Illinois and the second-most-populous county in the United States after Los Angeles County, California. As of 2019, the population was 5,150,233. Its county seat is Chicago, the most populous city in Illinois and the third-most-populous city in the United States. More than 40% of all residents of Illinois live in Cook County.
Lemont is a village located in Cook, DuPage, and Will counties in the U.S. state of Illinois, and is a suburb of Chicago. The population was 16,000 as of the 2010 census. Lemont is home to Argonne National Laboratory and other heavy industrial sites, and has a substantial European immigrant population.
The Calumet River is a system of heavily industrialized rivers and canals in the region between the south side of Chicago, Illinois, and the city of Gary, Indiana. Historically, the Little Calumet River and the Grand Calumet River were one, the former flowing west from Indiana into Illinois, then turning back east to its mouth at Lake Michigan at Marquette Park in Gary.
Illinois Route 50 (IL 50) is a 66.49-mile-long (107.01 km) north–south state road in northeastern Illinois. It runs from the junction with U.S. Route 45 (US 45) in West Kankakee north to US 41 in Skokie. In Chicago and the suburbs it's known as Cicero Avenue. Before this, Cicero Avenue was previously known as 48th Avenue, owing to its City of Chicago address of 4800 West.
Illinois Route 171 (IL 171) is a 38.61-mile-long (62.14 km) north–south state road in northeastern Illinois. It runs from U.S. Route 6 (US 6) in Joliet north to Illinois Route 72 at the Chicago–Park Ridge border. The section of IL 171 on Archer Avenue from Joliet to Summit is historically significant, originating as a Native American trail, and later serving for a time as part of the first numbered highway between St. Louis and Chicago.
The Chicago Portage was an ancient portage that connected the Great Lakes waterway system with the Mississippi River waterway system. Connecting these two great water trails meant easy access from the mouth of the St Lawrence River on the Atlantic Ocean to the Rocky Mountains, and the Gulf of Mexico. It had been used by Native Americans for thousands of years during the Pre-Columbian era for travel and trade.
The Calumet Region is the geographic area drained by the Grand Calumet River and the Little Calumet River of northeastern Illinois and northwestern Indiana in the United States. It is part of the Great Lakes Basin, which eventually reaches the Atlantic Ocean. It is a sub-region of the greater Northwest Indiana region and the even larger Great Lakes region.
Northwest Indiana, nicknamed "The Region" after the Calumet Region, comprises Lake, Porter, LaPorte, Newton and Jasper counties in Indiana. This region neighbors Lake Michigan and is part of the Chicago metropolitan area. According to the 2010 Census, Northwest Indiana has a population of 819,537 and is the state's second largest urban area after the Indianapolis Metropolitan Area. It is also the home of the Indiana Dunes, parts of which have been preserved through conservation efforts. The town of Ogden Dunes houses the Hour Glass, a museum showcasing the ecological and conservation efforts of O. D. Frank.
Archer Avenue, sometimes known as Archer Road outside the Chicago, Illinois city limits, and also known as State Street only in Lockport, Illinois and Fairmont, Illinois city limits, is a street running northeast-to-southwest between Chicago's Chinatown and Lockport. Archer follows the original trail crossing the Chicago Portage between the Chicago River and the Des Plaines River, and parallels the path of the Illinois and Michigan Canal and the Alton Railroad. As a main traffic artery, it has largely been replaced by the modern Stevenson Expressway.
Lake Chicago was a prehistoric proglacial lake that is the ancestor of what is now known as Lake Michigan, one of North America's five Great Lakes. Fed by retreating glaciers, it drained south through the Chicago Outlet River.
The Forest Preserve District of Cook County is a governmental commission in Cook County, Illinois, that owns and manages a network of open spaces, containing forest, prairie, wetland, streams, and lakes, that are mostly set aside as natural areas. Cook County contains Chicago, and is the center of the most densely populated urban metropolitan area in the Midwest. The Forest Preserve lands encompass approximately 70,000 acres (280 km2), about 11% of the county, providing open space within its urban surroundings. It contains facilities for recreation, as well as a zoo and a botanic garden.
Red Gate Woods is a forest preserve section within the Palos Division of the Forest Preserve District of Cook County, Illinois. It is located near where the Cal-Sag Channel meets the Chicago Sanitary and Ship Canal. In the woods is the original site of Argonne National Laboratory and the Site A/Plot M Disposal Site, which contains the buried remains of Chicago Pile-1, the world's first artificial nuclear reactor.
Lemont Township is one of 29 townships in Cook County, Illinois, USA. As of the 2010 census, its population was 21,113.
The Chicago and Joliet Electric Railway, or C&JE, was an electric interurban railway linking the cities of Chicago and Joliet, Illinois. It was the only interurban between those cities and provided a link between the streetcar network of Chicago and the cities along the Des Plaines River Valley in north central Illinois, which were served by the Illinois Valley Division of the Illinois Traction System.
The Valparaiso Moraine is a recessional moraine that forms an immense U around the Lake Michigan basin in North America. It is a band of high, hilly terrain made up of glacial till and sand. It begins near the border of Wisconsin and Illinois and extends south through Lake, McHenry, Cook, DuPage and Will counties in Illinois, and then turns southeast, entering Indiana. From this point, the moraine curves northeast through Lake, Porter, and LaPorte counties of Indiana into Michigan. It continues into Michigan as far as Montcalm County.
Thorn Creek is a 20.8-mile-long (33.5 km) tributary of the Little Calumet River that travels through Will and Cook counties in northeastern Illinois just south of Chicago. It starts in the high land of the Valparaiso Moraine before dropping 200 feet (60 m) to the lower elevations of the Little Calumet River valley. Along its path it has cut many deep ravines and valleys. It is usually quite narrow, though the width of the river varies. Under 26th Street in Chicago Heights, a dam built in 1928 forms Sauk Lake, but just north of the street it is just a few feet across. This dam creates an accumulation of several feet of silt in Sauk Lake and is being considered for Notching in 2016 by the Corps of Engineers. The intent is to 'improve stream habitat'. The impact upon Ground Water Recharge, mitigation of Thorn Creek's 'flashiness' and future recreational activities are also concerns of Water-Shed Stakeholders.
The Calumet Shoreline is an ancient shoreline of Lake Michigan located in the Lake Michigan Basin. It can be clearly seen as a sand ridge along Ridge Road south of Chicago. Closer to the lake from the Calumet Shoreline, there are the Tolleston shorelines and farther from the lake are the Glenwood Shoreline, the Tinley Moraine, and the Valparaiso Moraine. The shoreline is named after the Calumet Region of Northern Indiana.
St. James Catholic Church and Cemetery, also known as St. James at Sag Bridge Church is a historic church and cemetery in the Sag Bridge area of the village of Lemont, Illinois. It is situated on a high bluff at the western tip of the glacier-carved Mount Forest Island, overlooking the Calumet Sag Channel and the community of Sag Bridge.
Horace Meach Singer was an American businessman and politician from New York. Coming with his father to Lockport, Illinois work on the Illinois & Michigan Canal, Singer rose to become superintendent of repairs. In the course of his work, he came across a large quarry near Lemont, Illinois and established a company to mine it. Singer & Talcott was in operation until 1889. In 1866, Singer served a term in the Illinois House of Representatives, then was elected to the Cook County Board of Commissioners in the 1870s.