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Milwaukee River
Milwaukee River
Milwaukee River
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Dolomite Outcropping in Estabrook Park, Shorewood, Wisconsin

The Milwaukee River is a river in the state of Wisconsin. It is about 104 miles (167 km) long.[1] Once a locus of industry, the river is now the center of a housing boom. New condos now crowd the downtown and harbor districts of Milwaukee attracting young professionals to the area. The river is also ribboned with parks as it winds through various neighborhoods. Kayaks and fishing boats share the river with party boats. An extensive Riverwalk featuring art displays, boat launches and restaurants lines its banks in downtown Milwaukee.

Description

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The river begins in Fond du Lac County, Wisconsin and flows south past Grafton to downtown Milwaukee, where it empties into Lake Michigan. Cedar Creek, the Menomonee River and the Kinnickinnic River are the three main tributaries.

Watershed

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Map of the Milwaukee River watershed.

The Milwaukee River watershed drains 882 square miles (2,280 km2) in southeastern Wisconsin, including parts of Dodge, Fond du Lac, Milwaukee, Ozaukee, Sheboygan, Washington and Waukesha counties.

The Milwaukee River watershed is part of the Lake Michigan subbasin; this subbasin is itself a part of the St. Lawrence River Watershed, which is fed by the Great Lakes.

History

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The Milwaukee River area was populated by Native Americans in the time before European settlement. Jacques Marquette and Louis Jolliet navigated from Lake Michigan through the Milwaukee River on their way to the Fox River and the Mississippi. Previously (circa 1834-35) the river had been known as the "Maynawalky," while the present-day Menomonee River was known as the "Milwalky".[2][3]

In the early 19th century, three towns were formed across the banks of the Milwaukee and Kinnickinnic rivers: Juneautown by Solomon Juneau, Walker's Point by George H. Walker and Kilbourntown by Byron Kilbourn. The quarrel over the formation of a bridge across the Milwaukee River was a key point in the merging of the three towns into the city of Milwaukee in 1846.

Bridges

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The Milwaukee River as it goes through downtown Milwaukee crossed by the Wisconsin Avenue bridge
The Milwaukee River frozen over as it is crossed by the Saint Paul Avenue bridge

The Milwaukee River has numerous movable bridges spanning it, allowing for pedestrian and vehicular traffic. These bridges include several different types, including bascule and hydraulically-powered table bridges. There are also many fixed bridges, as well as several pedestrian-only and railroad trestles.

The following is a partial list of bridges that cross the river, from north to south:

  • Brown Deer Road Bridge
  • Range Line Road Bridge
  • Good Hope Road Bridge
  • Green Tree Road Bridge
  • Bender Road Bridge
  • Silver Spring Drive Bridge
  • Hampton Avenue Bridge
  • I-43 Bridge
  • Port Washington Road Bridge
  • Capitol Drive Bridge
  • Locust Street Bridge
  • North Avenue Bridge (Milwaukee)|North Avenue Bridge
  • North-Humboldt Pedestrian Bridge
  • Humboldt Street Bridge
  • Holton Street Viaduct (1926)
  • Pleasant Street Bridge
  • Cherry Street Bridge
  • McKinley Avenue Bridge aka Knapp Street Bridge
  • Juneau Avenue Bridge
  • Highland Avenue Pedestrian Bridge
  • State Street Bridge (Milwaukee)|State Street Bridge
  • Kilbourn Avenue Bridge
  • Wells Street Bridge (Milwaukee)|Wells Street Bridge
  • Wisconsin Avenue Bridge
  • Michigan Street Bridge
  • Clybourn Street Bridge
  • I-794 Bridge
  • Saint Paul Avenue Bridge
  • Water Street Bridge
  • Broadway Bridge aka Milwaukee Street Bridge
  • Hoan Bridge

There are also several Union Pacific (former Chicago and North Western Railway) railroad bridges crossing the Milwaukee River, including:

  • north of Bender Road
  • south of Silver Spring Drive
  • Railroad Swing Bridge #1556 (1915)[4]

Parks

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Public Parks along the Milwaukee River
Parks Location
Gordon Park, Kern Park, Lincoln Park, Pere Marquette Park, Pleasant Valley Park, Riverside Park Milwaukee
Kletzsch Glendale
Hubbard Park, Estabrook Park Shorewood
Village Park Thiensville
River Barn Park, Riverview Park, Scout Park, Shoreland and River Forest Nature Preserves Mequon
Lime Kiln Park, Veterans Memorial Park, River Oaks Park, Grafton Canoe Launch Grafton
Didier Field, East Riverside Park, Peninsula Park, Ehlers Park, Tendick Park Saukville
Waubedonia and Marie Kraus Park Fredonia
Riveredge Nature Center Newburg
Quaas Creek Park, Riverside Park, Riverfront Parkway West Bend
River Hill Park Kewaskum
Columbus Park Campbellsport

Dams

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Current and former dams on the Milwaukee river, from downstream
Name Municipality Status Removal Year
North Avenue Dam Milwaukee Removed 1997
Estabrook Park Dam Milwaukee Removed 2018[5]
Kletzsch Park Dam Milwaukee Active
Thiensville Dam Thiensville Active
Lime Kiln Dam Grafton Removed 2010
Grafton Chair Factory Dam Grafton Removed 1999
Bridge Street Dam Grafton Active
Waubeka Dam Waubeka Removed 2003[6]
Newburg Dam Newburg Removed 2012[7]
Woolen Mill Dam West Bend Removed 1988
West Bend West Bend Active
Gadow Mill Dam West Bend Active
Kewaskum Dam Kewaskum Active
Lake Bernice Dam Town of Ashford Active
Campbellsport Dam Campbellsport Removed
Gooseville Dam Gooseville Active

See also

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References

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[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Milwaukee River

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from Grokipedia
The Milwaukee River is an approximately 100-mile-long waterway in southeastern Wisconsin, United States, originating in Fond du Lac County and flowing generally southeastward through rural lake districts and agricultural areas in Washington and Ozaukee counties before traversing the urban core of Milwaukee, where it converges with the Menomonee and Kinnickinnic rivers prior to discharging into Lake Michigan. The river drains a basin encompassing portions of seven counties and supporting a population of about 1.3 million people, with a main-stem drainage area at its mouth of 696 square miles. Historically, the river served as a vital corridor for Native American tribes and early European fur traders, facilitating settlement and commerce that underpinned Milwaukee's development as an industrial hub in the 19th and early 20th centuries, with its waters powering mills, transporting goods, and attracting industries like brewing and manufacturing. This growth, however, led to severe environmental degradation, including heavy pollution from industrial effluents and sewage, transforming the waterway into what was once described as an "open sewer" by the mid-20th century. In response to these issues, the Milwaukee Estuary, including the river's mouth, was designated an Area of Concern under the Great Lakes Water Quality Agreement in 1987 due to impaired sediment, habitat degradation, and contaminants like PCBs, prompting coordinated restoration efforts involving sediment remediation, floodplain cleanups, and habitat rehabilitation that have significantly improved water quality, fish populations, and recreational access. Today, the river supports a thriving RiverWalk system attracting visitors for boating, fishing, and trails, while ongoing projects aim for full delisting of impairments by the late 2020s, reflecting a shift from industrial liability to ecological and economic asset.

Physical Characteristics

Course and Morphology

The Milwaukee River forms from the confluence of its north branch, originating in the Northern Unit of the in Fond du Lac County, and the east and west branches in the same county, near Campbellsport. The main stem flows southeasterly for approximately 100 miles (161 km) through Washington County, including the city of West Bend, Ozaukee County, passing Cedarburg and Grafton, and into Milwaukee County. In , it merges with the Menomonee River from the northwest and the Kinnickinnic River from the southwest to form the Milwaukee Estuary, which empties into at the harbor. Principal tributaries along the course include Cedar Creek, joining near Cedarburg in Ozaukee County, as well as smaller streams such as the Branch River in the upper watershed. The river's gradient is gentle, averaging around 10 feet per mile (1.9 m/km) in lower sections, supporting a predominantly meandering channel in rural upper reaches characterized by sinuous bends through glacial landscapes of till plains and moraines. In urban areas, particularly through Milwaukee County, the river's morphology has been altered by historical interventions, including channel straightening, deepening, bank armoring, and lining to accommodate development, impervious surfaces, and flood control. Despite these modifications, geomorphic assessments indicate the main channel remains stable, with minimal infrastructure threats from or . The river functions as a warm-water , with variable widths from 50 to 200 feet (15 to 61 m) and depths typically under (3 m) outside of dredged harbor areas.

Watershed and Hydrology

![Milwaukeerivermap.png][float-right] The Milwaukee River watershed encompasses approximately 696 square miles (1,803 km²) in southeastern , primarily draining rural and suburban landscapes before entering urban areas. This drainage area spans portions of seven counties, including Fond du Lac, Washington, Dodge, Sheboygan, Ozaukee, , and Waukesha, with land cover dominated by in upstream reaches and increasing downstream. Wetlands constitute over 68,000 acres, representing about 12% of the basin's land area, which helps regulate water flow and filtration. Key tributaries include the East and West Branches, Cedar Creek, and the North Branch, which converge near Campbellsport to form the main stem, extending roughly 104 miles to . The broader Milwaukee River Basin, incorporating adjacent sub-watersheds like those of the Menomonee and Kinnickinnic Rivers, expands to about 882 square miles and supports a population exceeding 1.3 million residents. Hydrologically, the river exhibits seasonal variability in discharge, with average flows at the Milwaukee gauge (USGS 04087000) typically ranging from values around 1,000–2,000 cubic feet per second (cfs), influenced by averaging 30–35 inches annually in the region. Peak discharges have reached over 24,000 cfs during major events, such as in May 2018, driven by spring snowmelt and intense storms. Flooding is recurrent due to the watershed's glacial , which features low-gradient channels and expansive floodplains; notable historical floods occurred in 1918, 1939, 1959, and more recently in 2010 and August 2025, when extreme rainfall exceeded 6 inches in hours, overwhelming urban . Urbanization has amplified runoff coefficients, reducing infiltration and elevating peak flows compared to pre-development conditions.

Historical Development

Indigenous and Early European Use

The Milwaukee River, deriving its name from the Algonquian term minwaking or minowakiing—meaning a gathering place near the waters—served as a central hub for indigenous peoples long before European arrival. Tribes including the Potawatomi, Ojibwe, Menominee, Sauk, Meskwaki (Fox), and Ho-Chunk utilized the river and its confluence with the Menomonee and Kinnickinnic rivers for transportation via canoes, facilitating trade networks that exchanged furs, corn, wild rice, and maple sugar among groups. Seasonal villages clustered along the waterways, supporting fishing for species like sturgeon, hunting deer and small game, and harvesting wild rice by paddling canoes through shallow wetlands to knock grains into vessels. Agricultural practices complemented these pursuits, with Potawatomi cultivating , beans, and squash on irrigated floodplains near the riverbanks, while from riparian zones provided remedies. By the 1700s, had become primary residents, drawn by the beaver-rich ecosystems that later fueled European trade, though intertribal dynamics shifted due to conflicts like the in the 1600s. European engagement with the river began in the mid-17th century through French exploration and fur trading, leveraging indigenous routes for navigation into the interior. Jesuit missionary documented the first European written record of the Milwaukee River in 1674 while traveling the . Subsequent French accounts referenced it in 1679, 1681, and 1698, as explorers and traders accessed pelts from local tribes amid rising demand in . Missionaries sought to convert indigenous populations, while traders established seasonal posts, with Jacques Vieau constructing one at the river's mouth in 1795 to procure furs directly from suppliers. These activities integrated the river into transatlantic commerce without immediate permanent settlement, relying on native knowledge for sustainable exploitation of beaver and other fur-bearing animals.

Industrialization and Urban Growth

The industrialization of Milwaukee commenced in the early , leveraging the Milwaukee River's water power via and canals constructed in the to drive mechanical processes in nascent mills. milling rapidly ascended as the city's premier industry from the mid-1840s, with facilities clustered along the river's lower reaches; output surged post-1870 due to regional surpluses and improved milling , establishing a dedicated district that processed millions of bushels annually by the 1880s. Urban expansion intertwined with these developments, as the city's population swelled from approximately 20,000 residents in 1850 to 55,000 by 1865 and 200,000 by 1890, fueled by immigrant labor attracted to riverine hubs. Factories proliferated upstream along the Milwaukee River to exploit hydraulic power prior to widespread steam adoption, supporting sectors like lumber processing and leather tanning that relied on the for and waste discharge. A mid-1860s initiative linked the Milwaukee and Rock Rivers, aiming to integrate the city's mills with broader agricultural hinterlands, though it yielded limited long-term navigational success. Post-Civil War, diversification propelled Milwaukee toward , with river-adjacent foundries and producing steam engines, agricultural implements, and rail components; by the 1880s, the sector employed tens of thousands and cemented the city's reputation for precision . emerged as a flagship enterprise, harnessing the river for shipment and cooling water, while the waterway's confluence with facilitated export of finished goods, underpinning a GDP contribution from that exceeded 50% of local output by 1900. This era transformed Milwaukee into a nexus of the "Machine Shop of the World" moniker by the early , with river valleys hosting over 1,000 industrial establishments by 1910.

Era of Pollution and Decline

During the mid-19th century, rapid industrialization transformed the Milwaukee River into a primary receptacle for untreated , as the city's surged past 100,000 by 1878, coinciding with the of over 75 miles of sewer that discharged raw directly into the . Household , including , combined with massive volumes of animal excrement—exceeding 100 tons daily from horse-drawn transport—overwhelmed the river's capacity, initiating widespread oxygen depletion and anaerobic conditions. Industrial effluents exacerbated this, with tanneries lining the riverbanks releasing chemical mixtures, hides, hair, and flesh remnants, while stockyards dumped blood, viscera, and manure into the flow. By 1881, observers characterized the Milwaukee River as a "current-less and yellowish murky stream, with water like oil, and an odor of a hundred sewers," reflecting the cumulative discharge from privies, early sewage systems, and burgeoning factories such as breweries and machine shops that added oils, greases, and coal tar residues. These inputs consumed nearly all dissolved oxygen, triggering recurrent fish kills, deformities in surviving aquatic life, and pervasive foul odors that rendered urban stretches biologically inert and hazardous to public health. Groundwater contamination from leaking privies further compounded risks, rendering well water unsafe and prompting early, inadequate attempts at mitigation, such as the 1869 diversion of sewage to rivers and the 1888 installation of pumps to flush pollutants with Lake Michigan water. Pollution intensified through the early , with persistent industrial dumping of , polycyclic aromatic hydrocarbons (PAHs), and later polychlorinated biphenyls (PCBs) from gas plants and manufacturing embedding contaminants in river sediments, creating long-term toxic legacies beyond biodegradable organic waste. By the , the river's degradation had reached a , with heavily conditions eliminating viable recreational or ecological uses in the industrialized core, as effluents from ongoing operations sustained hypoxic zones and sediment accumulation. This era underscored the causal link between unchecked urban expansion—post-Civil War population booms and factory proliferation—and the river's functional collapse into an open sewer system.

Environmental Dynamics

Ecological Composition and Biodiversity

The Milwaukee River's ecological composition features riverine channels, extensive floodplain forests, and associated wetlands spanning approximately 68,000 acres in the basin, which collectively support a range of aquatic and terrestrial habitats. Floodplain forests, covering nearly 600 acres in key areas, are dominated by canopy trees such as silver maple (Acer saccharinum), green ash (Fraxinus pennsylvanica), hackberry (Celtis occidentalis), black ash (Fraxinus nigra), and bur oak (Quercus macrocarpa), with understory species including bedstraw (Galium spp.), sensitive fern (Onoclea sensibilis), and water parsnip (Sium suave). However, invasive plants like reed canary grass (Phalaris arundinacea) and glossy buckthorn (Frangula alnus) pose threats to native flora diversity. Aquatic biodiversity centers on fish communities, with surveys identifying up to 35 in the Milwaukee River proper, including 23 sport , though pollution-tolerant like common carp (Cyprinus carpio), (Catostomus commersonii), and (Ameiurus melas) dominate due to historical impairments. Native such as (Micropterus dolomieu), (Esox lucius), (Salvelinus fontinalis), (Salmo trutta), and (Oncorhynchus mykiss) inhabit cooler upstream reaches, while migratory salmonids like coho (Oncorhynchus kisutch) and (Oncorhynchus tshawytscha) utilize tributaries. State-threatened including longear sunfish (Lepomis megalotis), pugnose shiner (Notropis anogenus), and greater redhorse (Moxostoma valenciennesi) rely on habitats for reproduction, underscoring the river's role in supporting sensitive warmwater . Terrestrial fauna includes diverse amphibians (e.g., Pseudacris crucifer, Anaxyrus americanus), reptiles (e.g., Chrysemys picta), and mammals (e.g., Odocoileus virginianus, Castor canadensis) in and edges. Avian species encompass forest dwellers like (Setophaga cerulea), (Aix sponsa), (Certhia americana), (Hylocichla mustelina), and (Bubo virginianus), alongside raptors such as (Accipiter cooperii). The basin harbors 16 endangered, 26 threatened, and 65 special concern species overall, with higher diversity in northern pristine areas compared to urban zones where modifications reduce biological integrity—98% of assessed streams partially meet uses, reflecting fair but impaired conditions. Restoration efforts, including reintroduction, aim to enhance hydrological dynamics and native by fostering recovery.

Pollution Sources and Legacy Contaminants

The Milwaukee River has been heavily impacted by industrial and urban pollution since the , with factories along its banks discharging untreated effluents directly into the , transforming it into an "open sewer" laden with organic waste, chemicals, and . Major contributors included meatpacking plants, breweries, and facilities that released solvents, oils, and byproducts without , exacerbating contamination through point-source discharges and eventual sediment deposition. overflows from Milwaukee's aging further compounded the issue, periodically dumping untreated and mixed with pollutants into the river during heavy rains. Legacy contaminants persist primarily in river sediments and floodplains, stemming from decades of unregulated industrial activity that deposited polychlorinated biphenyls (PCBs), such as lead and mercury, polycyclic aromatic hydrocarbons (PAHs), and petroleum compounds. PCBs, once widely used in electrical equipment and insulators by companies like , have accumulated in hotspots like Lincoln Creek and the Milwaukee River channel, with historic data showing concentrations high enough to impair and pose human health risks through . and PAHs, derived from factory runoff and incomplete combustion processes, bind to fine sediments, resisting natural flushing and migrating via during floods. Per- and polyfluoroalkyl substances (PFAS), known as "forever chemicals," have emerged as additional legacy threats, detected in river s and surface water within the Milwaukee Estuary Area of Concern, largely from historical use in foams at nearby Mitchell and industrial applications. The U.S. Agency designated the Milwaukee Estuary an Area of Concern in 1987 under the Water Quality Agreement, citing contamination from these pollutants as a primary barrier to recovery, with over 100,000 cubic yards of PCB-laden identified in impoundments like Estabrook. Despite regulatory bans on many such substances since the , their persistence—due to and low biodegradability—continues to drive remediation efforts, including projects funded at $450 million in 2023 to target PCB and hotspots.

Restoration Initiatives and Outcomes

Restoration initiatives for the Milwaukee River have centered on remediating legacy contaminants, particularly polychlorinated biphenyls (PCBs) and from industrial discharges, within the Milwaukee Estuary Area of Concern (AOC) designated by the U.S. Environmental Protection Agency (EPA). Funded largely through the Restoration Initiative (GLRI), these efforts include sediment dredging, capping, and habitat reconnection to address 11 beneficial use impairments, seven of which stem directly from contaminated sediments. The Milwaukee Riverkeeper organization contributes through community-based monitoring, supplying nearly 60% of baseline data for the basin to guide these projects. Prominent projects encompass the 2024 removal of the Estabrook Dam, which restored connectivity to upstream wetlands and fish spawning grounds, and cleanups targeting contaminated soils and sediments to reduce flood-related contaminant mobilization. In downtown Milwaukee's Third Ward, a remediation effort addressed a decommissioned manufactured gas plant site by excavating 44,000 cubic yards of impacted river sediments and capping about 6,500 cubic yards deemed unsuitable for , enhancing local waterway safety and ecology. Complementary greenway restorations along the river corridor aim to bolster habitat diversity and recreational access via enhanced parklands supporting multiple species. Outcomes demonstrate measurable improvements in and function, including dramatic reductions in PCB concentrations post-cleanup at sites like Ruck Pond, as verified by follow-up monitoring. Broader systemic efforts by the Milwaukee Metropolitan District have captured and treated 98.4% of sewer inflows since 1994, substantially lowering loads entering the river and supporting its recovery from historical degradation. These interventions have advanced delisting progress for certain AOC impairments, though full restoration of beneficial uses remains ongoing amid persistent legacy contamination challenges.

Infrastructure and Engineering

Dams and Flood Control Structures

The Milwaukee River has historically featured multiple dams, primarily constructed for flood mitigation, , and recreation, though many have been removed since the late to enhance ecological connectivity and natural flow dynamics. In the broader watershed, 48 dams and lake outlet control structures were documented as of the early 1970s, with 37 on streams including the main river stem. Removals, led by organizations such as Milwaukee Riverkeeper, have targeted over 10 structures on the river and its tributaries, restoring free-flowing conditions and reducing sediment accumulation that can exacerbate flooding. The Estabrook Dam, completed in early 1940, represented a primary flood control initiative addressing hydrological challenges from a Devonian-era ledge and meandering bends that created a low-gradient "drainage lake" prone to backups, as evidenced by significant ing in 1924. Funded through federal programs including the and , it impounded water upstream to regulate flows into Milwaukee while enabling recreational activities like and in the resulting pond. The structure was dismantled in 2018 after prolonged debate, with removal restoring natural river gradients and improving fish passage without increasing downstream risks, as post-removal monitoring confirmed stabilized . Remaining dams include the Kletzsch Park Dam in Glendale, a longstanding barrier modified in 2023 with a constructed fish passage bypass around its 5-foot height, enabling access to 54 miles of upstream habitat including 25 miles of river, 29 miles of tributaries, and 2,400 acres of wetlands for species such as and . Built in the early , it lacks a documented primary flood control role but supports local aesthetics via preserved falls; the upgrades addressed structural repairs and ecological restoration under the Area of Concern framework without altering impoundment capacity for flow regulation. The Thiensville Dam (also known as Mequon-Thiensville Dam) in Ozaukee County, originally tied to 19th-century milling operations harnessing river power, features an engineered fishway spanning 800 to 1,200 feet with pools and riffles to bypass its 6.5-foot drop, accommodating larger migratory like sturgeon. Enhancements under the Ozaukee County Fish Passage Program have optimized passage efficiency, prioritizing biological connectivity over flood storage. Contemporary flood control in the Milwaukee River watershed, managed by the Milwaukee Metropolitan Sewerage District, favors non-structural and restorative approaches over new dams, including acquisition of flood-prone properties, channel daylighting, and removal of linings to reconnect floodplains and attenuate peak flows. These measures have mitigated overflows in urban reaches, with over $585 million invested since 1995 in projects reducing overflows and flood damages across the Milwaukee, Menomonee, and Kinnickinnic sub-watersheds. Structural elements like floodwalls are limited on the , appearing more in tributary contexts such as proposed 1,200-foot barriers at Doyne Park near the river's zone. Dam removals have empirically supported resilience by minimizing impoundment-related risks like sudden releases during high water.

Bridges and Navigation Features

The Milwaukee River features a variety of bridges, predominantly movable designs engineered to balance vehicular traffic with river navigation. Early structures included wooden drawbridges, with the first ordered in 1840 near present-day Juneau Avenue; by 1913, 16 bridges crossed the river, transitioning to steel, iron, and concrete constructions by local firms like the Wisconsin Bridge and Iron Works. Movable bridges, essential for accommodating vessels, encompass bascule types—where the roadbed lifts via counterweights—and swing bridges that pivot horizontally. In Milwaukee, 21 such bridges exist citywide as of 2011, comprising 13 bascule and 8 vertical-lift spans, operated by the to provide clearance for passing boats. Notable examples include the State Street Bascule Bridge, which links the east and west banks and exemplifies early 20th-century engineering for urban river crossing while permitting maritime passage. The Milwaukee River Railroad Bridge, constructed in 1915 as a with 243-foot spans and lattice trusses weighing 800 tons, replaced a circa-1890 predecessor in the Historic Third Ward to support rail traffic alongside navigation. Bascule innovations, pioneered locally around 1904, enabled quick openings with minimal energy, facilitating commerce on inner-city waterways. Navigation on the Milwaukee River is primarily recreational, with the lower reaches navigable for small craft such as kayaks, canoes, and powerboats up to the section. The channel averages 225 feet in width over about 2.5 miles from the lakefront, though depths vary seasonally and are shallower upstream, often requiring minimum flows of 100-500 cubic feet per second for safe passage without exposed rocks. No locks exist; vessel movement depends on movable bridges providing vertical clearance for unlimited heights in bascule designs, though effects between and Streets pose challenges. Commercial use is limited to the adjacent harbor rather than the river proper, which historically supported lighter traffic before removals improved flow but did not establish deep-draft channels.

Human Utilization and Impacts

Parks, Recreation, and Public Access

The Milwaukee RiverWalk offers continuous public pedestrian access along approximately three miles of the river's banks, featuring promenades, installations, and connections to dining and cultural sites. Initiated in 1993, it connects three neighborhoods and remains open 24 hours daily for walking, fishing, and river viewing. Upstream parks provide additional shoreline access, including Ehlers Park in Ozaukee County, a 10.9-acre site with 2,200 feet of river frontage equipped for boating launches, fishing piers, and picnic areas open from 6 a.m. to 9 p.m. daily. The Milwaukee River Greenway encompasses 840 acres over eight miles, supporting paved and gravel trails for and cycling amid natural habitats. Further access points, mapped by the Department of Natural Resources (DNR), include Riverside Park, Cambridge Woods, and Kletzsch Park, facilitating entry for non-motorized craft and shore-based activities. Recreational boating centers on the 35-mile Urban Water , which includes segments of the Milwaukee River designated for and with designated launch sites serving the 1.5 million residents in the . and rentals are available through facilities like the Urban Ecology Center, enabling paddling along river trails. Fishing opportunities abound, targeting species such as , , , and from shore sites like Kern Park or boat-accessible waters, subject to DNR regulations. Trails adjacent to the river, including the State , integrate biking and walking with river views and occasional community events.

Economic Role in Urban Development

The Milwaukee River facilitated early urban settlement and industrial growth by offering reliable water power and navigable access to Lake Michigan. In the 1830s, settlers constructed dams along the river, including one near the present site of North Avenue, to power sawmills and flour mills that processed regional lumber and grain, laying the foundation for Milwaukee's manufacturing base. These hydraulic resources attracted entrepreneurs and laborers, concentrating development at the river's mouth where it converged with Lake Michigan. During the , the river served as a critical for , enabling the shipment of bulk goods like , , , and via schooners and steamers to eastern markets. The arrival of the first commercial vessel at in 1835 marked the onset of sustained trade, with the river's channel supporting up to dozens of vessels by the 1870s and fueling the city's transformation from a outpost into a bustling . This waterway-dependent drove population influx and infrastructure expansion, with industries clustering along the riverbanks to exploit its transport efficiencies. In the late 20th century, as industrial decline exposed the river's underutilization, municipal initiatives repositioned it as an economic asset for urban revitalization. The RiverWalk program, launched in the , integrated pedestrian paths and public amenities along 3 miles of the waterway by 2020, linking commercial districts to boost property values and revenues exceeding $100 million annually in related activities. These efforts reversed prior neglect, where post-World War II had marginalized the rivers, and instead harnessed the waterway to catalyze mixed-use developments and waterfront investments.

Recent Flood Events and Resilience

The Milwaukee River reached record crest levels during the August 9–10, 2025, flooding event, surpassing previous highs by more than 4 feet after over 9 inches of rainfall in a 1,000-year storm, which also affected tributaries like the Kinnickinnic, Menominee, and Root rivers. This event, the most severe flash flooding in southeast Wisconsin since 2008, caused widespread inundation of streets, basements, and vehicles, leading to emergency declarations, power outages, and an estimated $34 million in public infrastructure damage alongside over 1,800 homes affected. Floodwaters overwhelmed combined sewer systems, prompting overflows from the Milwaukee Metropolitan Sewerage District (MMSD). Prior significant flooding along the Milwaukee River included events tied to heavy regional rains, such as those in , which marked the benchmark for flash flood severity until 2025, contributing to broader patterns where floods have inflicted $123.7 million in damages since 1999 as the state's second-most frequent disaster type. These incidents underscore the river's vulnerability due to its urban watershed, where impervious surfaces exacerbate runoff during intense . Resilience efforts have centered on MMSD's shift toward watershed-scale strategies, including projects that manage over 10 million gallons of daily through permeable surfaces, rain gardens, and bioswales, alongside detention ponds and sewer relief upgrades. The district's Working Soils Program preserves floodplain lands via conservation easements with organizations like The Conservation Fund, enhancing natural absorption capacity, while upstream analogs in tributaries have demonstrated reduced downstream peak flows in studies by Riverkeeper. During the 2025 flood, these measures attenuated some impacts but proved insufficient against the storm's magnitude, highlighting ongoing needs for expanded upstream storage and adaptive financing models.

Management Controversies

Debates on Dam Removal and Modification

The primary debates surrounding dam removal and modification on the Milwaukee River have centered on the Estabrook Dam, a low-head structure built in 1937 to create an impoundment for recreation and flood control, which was ultimately removed in 2018 after over a decade of contention. Proponents of removal, including environmental advocacy groups such as Milwaukee Riverkeeper, argued that the aging dam impeded fish migration, trapped sediments that degraded water quality, and posed safety risks due to structural deterioration, with repair estimates exceeding $5 million compared to initial removal costs of around $1 million. Opponents, including local residents and recreation advocates, contended that the impoundment supported paddling, aesthetic appeal, and stable water levels essential for riparian property values, warning that removal would not restore a pre-dam "natural" state given the river's historical channelization and urbanization. Modification alternatives, such as installing fish ladders or partial notches, were proposed as compromises to enhance passage for species like and without fully eliminating the pool, potentially preserving recreational uses while addressing ecological barriers. However, these options faced scrutiny for higher long-term maintenance costs and uncertain efficacy, as evidenced by debates over similar structures like the upstream Grafton Dam, where voters in a 2020 referendum favored preservation with modifications amid concerns over regulatory rejection by the Department of Natural Resources. The Milwaukee County decision to proceed with full removal in 2016, following engineering assessments deeming repairs uneconomical, triggered multiple lawsuits, including claims of inverse condemnation from upstream property owners whose water levels dropped by up to 4 feet, with the final appellate ruling in 2023 affirming no compensable taking occurred. Smaller-scale debates have involved other structures, such as the former North Avenue , removed in the early 1990s to improve navigation and with minimal controversy, and the Lloyd Dam near Mequon, where 2009 discussions weighed $1.4 million in repairs against removal for flood risk reduction and habitat restoration. These cases highlight broader tensions in the watershed, where dam longevity—averaging far less than their designed 50-100 years—clashes with evolving priorities: empirical studies on river dam removals indicate rapid channel incision and release but improved longitudinal connectivity for aquatic species, though benefits vary by site-specific and land use. Critics of removal-driven policies, often aligned with conservation NGOs, note that such actions can overlook localized economic dependencies, as seen in post-Estabrook litigation costs surpassing $20 million for taxpayers.

Balancing Development and Environmental Regulation

Milwaukee's overlay zones regulate development to mitigate risks while accommodating needs, designating areas such as floodway (FW), flood fringe (FF), and flood storage (FS) based on FEMA flood maps. In FW zones, development is limited to open space and non-habitable uses, prohibiting structures that increase regional flood elevations or store hazardous materials, as these measures preserve flood conveyance and storage capacity. FF zones permit conditional development if lowest floors are elevated at least above the regional flood elevation with dry-land access, ensuring no net rise in flood peaks. These state-mandated standards, aligned with Wisconsin's requirements, have restricted post-1930s floodplain encroachment, reducing potential damages from events like the 1997-1998 by prioritizing alternatives to high-risk building. Environmental regulations under the Clean Water Act impose additional constraints on urban development along the river, mandating permits for 27 municipalities to control runoff pollution from impervious surfaces, which contributes significantly to (e.g., 21,300 tons annually in the Menomonee sub-basin) and impairments. Total maximum daily loads (TMDLs) for and pathogens require developers to incorporate , such as detention basins and riparian buffers, to offset nutrient and pollutant loads from new projects, with land use projections indicating 79% of the basin's from nonpoint sources tied to . These measures have improved , enabling fishable and swimmable goals, but increase development costs by necessitating compensatory storage in FS zones and prohibiting fill that diminishes functions for and . Planning efforts by the Southeast Wisconsin Regional Planning Commission (SEWRPC) exemplify balancing through targeted interventions, recommending floodproofing 145 buildings, elevating 177, and acquiring 71 in the 100-year at a of $38.2 million, avoiding environmentally disruptive options like levees that could reduce storage by 460 acre-feet. Programs like the Metropolitan Sewerage District's Working Soils initiative protect private lands from conversion, preserving soil-based attenuation while allowing agricultural continuity, addressing urban runoff's exacerbation of peak flows amid projected land use shifts. Challenges persist from historical losses (now <1% in urbanized sub-basins like Kinnickinnic) and groundwater depletion, prompting recommendations for to limit sprawl and restore 100 acres of buffers, though economic pressures for infill development test enforcement.

References

  1. https://emke.uwm.edu/entry/milwaukee-river/
  2. https://www.tripsavvy.com/the-milwaukee-river-2363118
  3. https://dnr.wisconsin.gov/topic/Watersheds/basins/milw
  4. https://www.waterqualitydata.us/provider/NWIS/USGS-WI/USGS-04087000/
  5. https://www.visitmilwaukee.org/about-milwaukee/riverwalk-history/
  6. https://emke.uwm.edu/entry/water/
  7. https://councilgreatlakesregion.org/from-an-open-sewer-to-our-greatest-asset-how-milwaukee-overcame-a-legacy-of-industrial-water-pollution/
  8. https://www.epa.gov/great-lakes-aocs/milwaukee-estuary-aoc
  9. https://dnr.wisconsin.gov/topic/GreatLakes/Milwaukee.html
  10. https://www.mmsd.com/what-we-do/milwaukee-estuary-aoc
  11. https://city.milwaukee.gov/WCC/Take-Action/Water-Tour
  12. https://www.jsonline.com/story/news/local/milwaukee/2024/01/04/three-biggest-strides-milwaukee-made-in-cleaning-its-rivers/72047048007/
  13. https://milwaukeeriverkeeper.org/our-waterways/
  14. https://www.americanwhitewater.org/content/River/view/river-detail/3313/main
  15. https://apps.dnr.wi.gov/water/wsSWIMSDocument.ashx?documentSeqNo=14868447
  16. https://county.milwaukee.gov/ImageLibrary/User/tdetzer/01_STREAM_ASSESSMENT.pdf
  17. https://county.milwaukee.gov/files/county/administrative-services/ArchEng/Bids-and-RFPs/MilwaukeeCountyStreamAssessmentFinalReport.pdf
  18. https://dnr.wisconsin.gov/topic/statenaturalareas/MilwaukeeRiverSwamp
  19. https://www.newsbreak.com/a-z-animals-1693032/3092710762438-how-deep-is-the-milwaukee-river
  20. https://waterdata.usgs.gov/nwis/inventory/?site_no=04087000
  21. https://waterdata.usgs.gov/monitoring-location/04087000/
  22. https://snoflo.org/river-levels/milwaukee-river
  23. https://www.sewrpc.org/SEWRPCFiles/Publications/nl/SEWRPC-Newsletter-V11-N02-1971.pdf
  24. https://climatology.nelson.wisc.edu/historic-flooding-in-southeast-wisconsin-august-2025/
  25. https://emke.uwm.edu/entry/indigenous-milwaukee-in-the-age-of-empire/
  26. https://www.wisconsinhistory.org/Records/Article/CS10640
  27. https://www.wisconsinhistory.org/Records/Article/CS1607
  28. https://emke.uwm.edu/entry/watermills/
  29. https://riverwestcurrents.org/2020/02/our-history-begins-with-the-river-2.html
  30. https://emke.uwm.edu/entry/flour-milling/
  31. https://www.marquette.edu/cuap/milwpast.shtml
  32. https://www.politico.com/magazine/story/2016/08/milwaukee-what-works-industrial-clean-up-214174
  33. https://urbanmilwaukee.com/2016/08/24/yesterdays-milwaukee-milwaukees-canal-mid-1860s/
  34. https://www.wisconsinhistory.org/Records/Article/CS429
  35. https://www.milwaukeepbs.org/the-making-of-milwaukee/history/
  36. https://milwaukeehistory.net/education/milwaukee-timeline/
  37. https://www.thevalleymke.org/history
  38. https://www.mmsd.com/about-us/news/a-toxic-legacy
  39. https://emke.uwm.edu/entry/pollution/
  40. https://www.wisconsinwetlands.org/wp-content/uploads/2015/06/Milwaukee-River-Floodplain.pdf
  41. https://dnr.wisconsin.gov/topic/statenaturalareas/MilwaukeeRiverFloodplainForest
  42. https://19january2017snapshot.epa.gov/sites/production/files/2013-12/documents/milwaukee-estuary-rap1994.pdf
  43. https://www.epa.gov/great-lakes-aocs/lincoln-creek-milwaukee-river-channel-legacy-act-cleanup
  44. https://uwm.edu/news/uwm-freshwater-sciences-alum-works-to-clean-up-milwaukees-waterways/
  45. https://www.ehn.org/milwaukee-sues-monsanto-over-pcb-contamination-costs
  46. https://mkewaterwaypartners.org/milwaukee-river-floodplains/
  47. https://urbanmilwaukee.com/pressrelease/pfas-found-in-sediment-and-surface-water-at-milwaukee-estuary-area-of-concern/
  48. https://milwaukeeriverkeeper.org/pfas-monitoring/
  49. https://www.dhs.wisconsin.gov/environmental/lincolnparkfaq53.pdf
  50. https://www.wpr.org/economy/epa-announces-largest-project-ever-funded-under-great-lakes-cleanup-program-milwaukee
  51. https://milwaukeeriverkeeper.org/about-us/our-impact/
  52. https://www.epa.gov/great-lakes-aocs/remediation-and-restoration-projects-milwaukee-estuary-aoc
  53. https://www.mkecountyparks.org/parks-and-the-milwaukee-river-cleanup
  54. https://www.geiconsultants.com/projects/third-ward-milwaukee/
  55. https://mkewaterwaypartners.org/projects/
  56. https://city.milwaukee.gov/WCC/Principles/Fishable-Swimmable-Water
  57. https://dnr.wisconsin.gov/topic/GreatLakes/MKEAOCProjects.html
  58. https://milwaukeeriverkeeper.org/whats-the-big-dam-deal/
  59. https://urbanmilwaukee.com/2015/11/30/a-freshwater-controversy-why-the-estabrook-dam-was-created/
  60. https://urbanmilwaukee.com/2015/12/16/a-freshwater-controversy-estabrook-dams-golden-age-for-swimming/
  61. https://www.mkecountyparks.org/estabrook-dam-removal
  62. https://www.mmsd.com/about-us/news/kletzsch-dam-project-fish-explore-and-reproduce
  63. https://mkewaterwaypartners.org/kletzsch-dam-fish-passage/
  64. https://www.ozaukeecounty.gov/1255/What-is-a-Fishway
  65. https://www.wisconsinrivertrips.com/segments/milwaukee-river/thiensville
  66. https://fundforlakemichigan.org/project/milwaukee-river-mequon-thiensville-dam-fishway-enhancements/
  67. https://www.mmsd.com/what-we-do/flood-management
  68. https://www.sewrpc.org/SEWRPCFiles/Publications/mr/mr-172-milw-river-watercourse-plan.pdf
  69. https://www.fox6now.com/news/mmsd-estimated-combined-sewage-overflow-tops-5-billion-gallons
  70. https://www.mkecountyparks.org/doyne-park-flood-management
  71. https://www.wisconsinrivertrips.com/segments/milwaukee-river/waubeka
  72. https://emke.uwm.edu/entry/bridges/
  73. https://milwaukeeriverkeeper.org/milwaukee-bridge-overview/
  74. https://city.milwaukee.gov/ImageLibrary/Groups/cityHPC/DesignatedReports/vticnf/StateStBridge.pdf
  75. https://historicbridges.org/bridges/browser/?bridgebrowser=wisconsin/milwaukee/
  76. https://milwaukeeriverkeeper.org/milwaukees-historic-bascule-bridges/
  77. https://www.wisconsinrivertrips.com/segments/milwaukee-river/downtown
  78. https://harbordistrict.org/wp-content/uploads/gravity_forms/2-63eee0e80f46c8725798de0c835de281/2017/09/The-Port-of-Milwaukee-Dec-1922.pdf
  79. https://www.navcen.uscg.gov/sites/default/files/pdf/pawsa/WorkshopReports/Milwaukee_PAWSA_Final_Report.pdf
  80. https://www.lrd.usace.army.mil/Missions/Projects/Article/3638373/milwaukee-harbor/
  81. https://www.sewrpc.org/SEWRPCFiles/Environment/waterquality/tr-039_chapter-01.pdf
  82. https://city.milwaukee.gov/DCD/Projects/RiverWalk
  83. https://city.milwaukee.gov/DCD/Projects/RiverWalk/RiverWalk-History
  84. https://www.ozaukeecounty.gov/653/Ehlers-Park
  85. https://awealthofnature.org/parks/milwaukee-river-greenway/
  86. https://dnr.wisconsin.gov/sites/default/files/topic/Fishing/LM_MilwaukeeRiverAccess.pdf
  87. https://www.northshorefamilyadventures.com/outdoor-activities-guide/milwaukee-by-boat
  88. https://www.americantrails.org/resources/milwaukee-urban-water-trail-wisconsin
  89. https://county.milwaukee.gov/EN/Parks/Experience/On-the-Water
  90. https://dnr.wisconsin.gov/sites/default/files/topic/Fishing/LM_closetohome_letter.pdf
  91. https://www.pbs.org/video/milwaukee-a-city-built-on-water-0uxigt/
  92. https://www.milwaukee.gov/ImageLibrary/Groups/portAuthors/webphotos/Milwaukeemag_PortStory.pdf
  93. https://www.wmtv15news.com/2025/08/11/milwaukee-area-drying-out-after-weekend-rain-causes-record-flooding-multiple-rivers/
  94. https://dailyreporter.com/2025/08/11/milwaukee-1000-year-storm-flooding-emergency/
  95. https://www.jsonline.com/live-story/weather/2025/08/10/wisconsin-weather-updates-today-flooding-rain-totals-road-closures/85599038007/
  96. https://wisconsinexaminer.com/2025/08/19/milwaukee-flooding-left-more-than-1800-homes-damaged-or-destroyed/
  97. https://www.youtube.com/watch?v=gjxwIlEYeoM
  98. https://www.jsonline.com/story/news/2025/08/15/how-milwaukee-emerges-from-floods-climate-change-heartbreaking-loss/85656756007/
  99. https://www.weather.gov/mkx/events
  100. https://www.pew.org/en/research-and-analysis/articles/2020/07/20/milwaukees-sustainability-leader-advances-a-back-to-nature-strategy-to-lower-flood-risk
  101. https://city.milwaukee.gov/dpw/Infrastructure/Programs/Flood-Hazard-Mitigation
  102. https://www.mmsd.com/application/files/5315/9233/3769/A_New_Era_in_Flood_Management_1.pdf
  103. https://www.illinoisbeaveralliance.org/beavers-build-flood-resilience
  104. https://www.mmsd.com/about-us/news/blue-notes-jones-historical-storm
  105. https://expertcenter.res.us/blog/mmsd-is-investing
  106. https://milwaukeeriverkeeper.org/estabrook-dam-debate-on-fox-6-news/
  107. https://www.fox6now.com/news/treasure-or-trash-the-debate-over-estabrook-dam-rages-on
  108. https://shepherdexpress.com/news/features/close-ending-estabrook-dam-stalemate/
  109. https://urbanmilwaukee.com/2016/02/10/a-freshwater-controversy-the-path-forward-for-estabrook-dam/
  110. https://milwaukeeriverkeeper.org/milwaukee-riverkeeper-position-paper-on-estabrook-dam/
  111. https://structurespot.com/1-6-million-grafton-dam-modification-faces-rejection-by-dnr/
  112. https://urbanmilwaukee.com/2023/02/25/mke-county-final-estabrook-dam-lawsuit-ends/
  113. https://municipalminute.ancelglink.com/2023/02/no-taking-where-dam-removal-lowered.html
  114. https://www.tmj4.com/news/local-news/the-estabrook-dam-will-be-torn-down
  115. https://onmilwaukee.com/articles/hissom030409
  116. https://dnr.wisconsin.gov/topic/dams/DamRemovalAbandonment.html
  117. https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2002WR001714
  118. https://city.milwaukee.gov/ImageLibrary/Groups/ccClerk/Ordinances/Volume-2/CH295-SUB11.pdf
  119. https://dnr.wisconsin.gov/sites/default/files/topic/Floodplains/documents/WIQG2019.pdf
  120. https://dnr.wisconsin.gov/sites/default/files/topic/TMDLs/20220218_MilwaukeeRiverTMDLRevision.pdf
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