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+StL is a 2019 masterplan proposal for a connected greenway in central St. Louis, not a claim that every rendering was built. Created by TLS Landscape Architecture, Shanghai OBJECT TERRITORIES, and [dhd] derek hoeferlin design for Great Rivers Greenway, the award-winning concept sought to link Forest Park with the Gateway Arch while extending access to neighborhoods, parks, cultural institutions, schools, jobs, and redevelopment areas.
The proposal organized that ambition around three ideas—Economic Assets, Ecological Loops, and Equitable Extensions. The related public project is now called the Brickline Greenway, whose routes and construction are advancing in segments. Understanding the difference between the 2019 competition plan and the current Brickline program is the key to reading what +StL means in St. Louis today.
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What is +StL in St. Louis?
+StL (“Plus St. Louis”) is a competition-era urban greenway masterplan that treats landscape, transportation, ecology, culture, and economic access as one connected public-realm problem. The design team prepared it for Great Rivers Greenway, the regional public agency responsible for developing and maintaining greenways in the St. Louis area. The American Society of Landscape Architects (ASLA) recognized the proposal with a 2019 Professional Awards Honor Award in Analysis & Planning.
The plan responded to a city that the designers described as physically and psychologically divided by transportation infrastructure. Rather than regard the central corridor as a gap to cross quickly, +StL proposed turning it into a sequence of parks, paths, habitats, civic spaces, and neighborhood connections. Its headline ambition was a continuous relationship between Forest Park on the west and the Gateway Arch on the east, with branches reaching communities north and south of that spine.
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The ASLA Awards Jury summarized the competition entry as “an ambitious plan” that envisioned a greenway network “to unite a physically fractured city.” That is a description of a design proposition, not a report that the entire network has been delivered.
How does the +StL plan connect Forest Park and the Gateway Arch?
The proposal uses a central corridor as connective public realm, then adds lateral links into surrounding neighborhoods and institutions. Its map is less a single trail than a network: a principal east–west relationship, ecological spaces in the corridor, and extensions that make the system useful for everyday trips as well as recreation.
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On the west, Forest Park is a major civic and cultural anchor. Moving east, the concept ties together Washington University, the Cortex innovation district, Grand Center, Saint Louis University, downtown destinations, and the Arch grounds. These places represent education, employment, arts, culture, tourism, and redevelopment activity. The design argument is that linking them with comfortable public space can make the relationships between them more visible and more usable.
North–south connections are equally important. The proposal identifies Newstead as a northern extension and Compton as a southern extension. It also sketches neighborhood-scale changes such as improved lighting, bicycle lanes, and traffic calming. Those interventions are intended to make crossing streets and reaching the greenway safer and more legible, especially for people who are not visiting a destination by car.
What are the three parts of the urban mosaic?
The +StL narrative is organized into three connected components. They overlap in the same places, but each answers a different question about what a citywide greenway should do.
1. Economic Assets
Economic Assets connect existing institutions and investment rather than treating the greenway as an isolated park. The proposal names Forest Park, Washington University, Cortex, Grand Center, Saint Louis University, and downtown among the destinations that could be joined by a coherent public realm. In this framework, a path, plaza, or planted corridor can help people reach jobs, classrooms, cultural venues, and redevelopment sites while giving those places a shared civic identity.
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The concept does not establish that the greenway caused new jobs, raised property values, or produced a specific return on investment. It presents physical connection and public-space quality as strategies that could support economic access. Any claim about actual economic outcomes requires evidence from implemented segments and subsequent evaluation.
2. Ecological Loops
Ecological Loops use connected open space to perform environmental functions as well as provide recreation. The design narrative focuses on a low railway basin and related open spaces where the proposal could intercept stormwater and create a mix of native prairie, woodland, and wetland habitat. Trails and boardwalks would allow people to move through those landscapes without flattening the ecological differences between them.
These are proposed landscape systems. The award entry does not provide measured reductions in flooding, heat, pollution, or runoff, and it does not document a completed habitat-restoration program attributable to +StL. Read the ecological language as a set of design intentions and potential performance goals, not as a verified results table.
3. Equitable Extensions
Equitable Extensions carry the central investment into adjacent neighborhoods. The proposal’s northward Newstead and southward Compton links are examples of this approach, as are the suggested lighting, bicycle infrastructure, and traffic-calming changes. “Equity” is used broadly: the designers discuss physical access to the network, social inclusion in public space, and economic opportunity connected to the places the greenway reaches.
That framing matters because a signature park can remain difficult to use if surrounding sidewalks, crossings, transit connections, or neighborhood routes are uncomfortable. +StL therefore treats the ordinary blocks between major destinations as part of the project, not merely as territory outside the park.
What makes +StL different from a conventional trail proposal?
Its distinctive premise is that ecological restoration, cultural identity, mobility, public health, and economic access should be planned together. The design team did not present a trail as a stand-alone recreational product. It presented a city-making framework in which planting, stormwater landscapes, safe routes, cultural destinations, and redevelopment connections reinforce one another.
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That integrated approach also explains the “urban mosaic” metaphor. A mosaic is made of distinct pieces that retain their character while forming a larger composition. In +StL, a wetland basin, a university district, a neighborhood street, an arts venue, and a downtown park are different pieces; the proposed greenway is the connective pattern between them.
The approach has practical implications for construction and maintenance. A corridor that combines paths, traffic changes, drainage landscapes, habitat, lighting, and public gathering spaces requires coordination among transportation agencies, utilities, parks, adjacent institutions, neighborhood groups, and private partners. The competition proposal established a compelling spatial logic, but detailed engineering, property agreements, permitting, budgets, and operations would still be required for any individual segment.
Is +StL the same thing as the Brickline Greenway?
They are related, but they are not interchangeable names for the same status. +StL is the 2019 competition masterplan and design narrative. Great Rivers Greenway’s active central-city initiative was initially known as the Chouteau Greenway and was renamed the Brickline Greenway after the agency’s board approved the change in 2020.
Great Rivers Greenway describes the Brickline Greenway as a major public-private partnership intended to connect four anchor parks and fourteen city neighborhoods. Its Framework Plan is a roadmap of potential alignments and signature projects, not a promise that every line or image will be constructed exactly as drawn. Routes continue to be refined with residents and stakeholders as design, engagement, fundraising, and technical feasibility work proceed.
| Question | +StL | Brickline Greenway |
|---|---|---|
| Status | 2019 competition masterplan and award entry | Current public greenway program being delivered in segments |
| Scope | Specific Economic Assets, Ecological Loops, and Equitable Extensions | Evolving framework of routes, anchor parks, neighborhood links, and signature projects |
| How routes are judged | Design team’s proposed spatial strategy | Great Rivers Greenway cites technical feasibility, connectivity, potential economic/environmental/equity impact, and potential experience |
| What the evidence proves | Design goals and a recognized planning concept | Agency-reported progress on selected segments; outcomes vary by location and date |
How much of the Brickline Greenway is built?
Great Rivers Greenway’s October 2026 project graphic reports approximately 1.25 miles built, 1.3 miles in construction, about 7 miles in planning and design, and about 4 miles of partner connections. Those are agency-reported, time-sensitive figures; they should be read as a snapshot rather than a permanent total.
The numbers do not mean that every +StL feature exists, nor do they identify the construction status of every proposed Newstead, Compton, ecological, or institutional connection. A segment can be in design while another is under construction, and a partner connection may be delivered by an organization other than Great Rivers Greenway. For a location-specific answer, use the current Brickline Greenway project page and the latest segment information.
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What does the Brickline Framework Plan decide?
The framework functions as a decision roadmap. Great Rivers Greenway says potential routes are evaluated against four broad axes: technical feasibility; connectivity; potential economic, environmental, and equity impact; and potential experience. This means a visually compelling alignment still has to work technically, connect people to useful destinations, offer public benefits, and create a safe and meaningful experience.
Resident and stakeholder engagement is part of that process. As segments advance, the agency continues design, public engagement, fundraising, and feasibility work. Consequently, the current alignment may differ from a competition rendering without making the original +StL idea irrelevant. The proposal supplied a way to think about relationships among places; the active program must resolve right-of-way, engineering, funding, maintenance, and community-priority questions one segment at a time.
Are the ecological and health benefits proven?
No. +StL proposes ecological and public-health benefits, but the cited award materials do not establish measured outcomes. Native planting, wetlands, stormwater interception, walking and cycling routes, and safer crossings are plausible tools for improving environmental conditions and everyday mobility; they are not evidence by themselves that a particular reduction in flooding, heat, pollution, or illness has occurred.
For an implemented Brickline segment, the appropriate evidence would be project-specific: completed drawings and features, monitoring data, maintenance records, usage counts, safety information, or an independent evaluation. Until such evidence is available, describe the benefits as intended functions or potential impacts and identify the agency or study that documents any result.
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Start by identifying the document’s date and purpose. A 2019 ASLA award page describes a competition proposal; it is not a construction completion notice. Then separate three categories of information:
- Existing anchors: places such as Forest Park, Washington University, Cortex, Grand Center, Saint Louis University, downtown, and the Arch that the proposal sought to connect.
- Proposed interventions: ecological loops, boardwalks, prairie, woodland, wetlands, lighting, bike lanes, traffic calming, and neighborhood extensions shown as design ideas.
- Current delivery: segments that Great Rivers Greenway or partners identify as built, in construction, or in planning and design.
A rendering can communicate atmosphere, planting character, and a desired relationship between destinations. It cannot, by itself, prove that a boardwalk, wetland, lane, or plaza was funded, permitted, constructed, or maintained. Confirm those details in current project materials before making a travel, access, or property decision.
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Why did the project’s name change?
Great Rivers Greenway’s board approved changing the Chouteau Greenway name to Brickline Greenway in 2020. The change is important for searches and records: older competition and planning documents may use “Chouteau Greenway” or refer to +StL, while current agency updates generally use “Brickline Greenway.” Searching both historical and current names helps readers connect the design history to the active program without assuming that the documents describe identical scopes.
What should residents and visitors do before planning a route?
Use the current agency information rather than relying on a 2019 map alone. Check whether the specific segment is listed as open, under construction, or in planning; look for current detours or access notes; and verify connections to transit, sidewalks, crossings, and nearby destinations. Conditions can change as construction phases and partner projects advance.
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For broader context, the Brickline Greenway FAQs explain the framework, route-evaluation criteria, project history, and the agency’s engagement process. The original ASLA +StL award entry remains the best source for the competition proposal’s three-part concept and its design rationale.
What is the bottom line on +StL?
+StL is best understood as the design foundation for a connected urban-greenway idea: link Forest Park and the Arch, connect major institutions and neighborhoods, and combine ecological repair with equitable mobility and economic access. It won an ASLA planning award in 2019 because of that ambitious, integrated vision.
The current reality is more specific and incremental. The related Brickline Greenway was renamed in 2020 and is being implemented through evolving segments, partnerships, and feasibility decisions. Some mileage is built or under construction, while more remains in planning and design. Treat +StL as a proposal that shaped the conversation—not as a complete, verified inventory of what is open today.
Frequently Asked Questions
Why is the plan called an “urban mosaic”?
The phrase describes a network made from different kinds of city places rather than one uniform park. Cultural districts, campuses, neighborhoods, streets, drainage landscapes, and major parks keep their distinct identities while a greenway supplies the connective pattern.
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No. The competition map shows a proposed relationship, not a guaranteed alignment, easement, acquisition, or construction schedule. Potential routes must still pass feasibility, funding, engagement, and design decisions in the current Brickline process.
Where can I check whether a Brickline segment is open?
Use Great Rivers Greenway’s current Brickline Greenway project page and segment updates rather than an archived +StL rendering. Look for the segment’s current phase, access information, and any construction notices, because agency-reported status can change as work advances.
Does the 2019 award mean the project received construction funding?
No. The ASLA Honor Award recognized the quality and ambition of the analysis and planning proposal. An award is not a construction appropriation, permit, procurement notice, or proof that the proposed ecological and mobility features were installed.
