The rebuilt U.S. Route 20 corridor near Buffalo carries more than 25,000 vehicles a day and now includes a new Cazenovia Creek bridge, added travel lanes, and safety improvements as part of the Route 20 rebuild.
A $49 million reconstruction of a busy stretch of U.S. Route 20 in Erie County, known as the Route 20 rebuild, is substantially complete, including replacement of a bridge built in 1929 and expansion of the road to five lanes, Gov. Kathy Hochul announced Oct. 21.
The project covers about one mile of Transit Road between Leydecker Road and Seneca Street, also designated New York Route 16, in the towns of West Seneca, Elma and Orchard Park. State officials said the work was completed on budget and ahead of schedule.
The rebuilt bridge over Cazenovia Creek was scheduled to be fully open for the next morning commute. Drivers may still encounter finishing work, including paving and landscaping, during the following weeks. Travelers should use 511NY for current conditions rather than relying on the completion announcement alone.
The project details appear in the governor’s official release.
A nearly century-old bridge replaced
The former Route 20 bridge over Cazenovia Creek had served the corridor since 1929. It was replaced with a steel-girder structure supported by three piers and topped with a concrete deck.
The new bridge retains squared-stone visual elements associated with the older structure. Preserving those details gives the replacement a connection to the corridor’s history while modern materials carry present-day traffic.
Bridge replacement is more than a surface paving job. Crews must manage water, utilities, foundations, traffic and environmental conditions while maintaining access through or around a heavily traveled area. State officials said more than 25,000 vehicles use this part of Route 20 each day.
Road widened to five lanes
Before reconstruction, the corridor generally provided one lane in each direction with a center turning lane. The new layout has two travel lanes in each direction plus a center lane.
The project also includes new drainage, signs and a traffic signal. A 36-inch water transmission main was replaced as part of the work, coordinating transportation construction with a major piece of underground infrastructure.
State officials said the route is used for commuting, business, shopping and major destinations such as Buffalo Bills games and the Erie County Fair. High traffic volume can make construction disruptive, but it also increases the consequence of leaving an aging bridge or failing drainage system unaddressed.
Walking and bicycling improvements
The announcement describes bicycle lanes and safer sidewalks as part of the corridor work. Those features matter because a wider road can otherwise create longer crossing distances and higher perceived speeds for people outside vehicles.
Safe design requires more than painting a bicycle symbol on pavement. Intersections, turning movements, drainage grates, snow storage and connections at each end of a project all affect whether a bicycle lane can be used comfortably. Sidewalks need accessible curb ramps, smooth surfaces and crossings that give people enough time.
The completed corridor should be monitored for crashes, near misses and driver speeds. If a location remains dangerous, transportation agencies can adjust signal timing, markings or signs rather than waiting for another full reconstruction.

How the project was funded
U.S. Sen. Charles Schumer said federal money from the Bipartisan Infrastructure Investment and Jobs Act helped support the project. The state announcement does not provide a line-by-line split between federal and state dollars.
Large road projects often combine funding sources and include work that serves several purposes at once. Replacing a bridge, rebuilding pavement, moving water infrastructure and adding pedestrian features under one contract can reduce the need to reopen the same corridor repeatedly.
Public reporting should make the final cost and funding shares easy to understand. Finishing on budget means the project stayed within its authorized amount, not that the investment was small. A $49 million project deserves a clear record of outcomes, including safety, travel reliability and infrastructure condition.
Why this matters beyond Erie County
Route 20 crosses New York and passes through communities that share many of the same transportation challenges. Aging bridges, incomplete sidewalks, drainage problems and traffic through village centers are familiar issues in Central New York and the Mohawk Valley.
A western New York project does not directly repair a road in Oneida or Herkimer County. It does show how federal and state transportation dollars can be combined to replace aging infrastructure while adding features for people walking and bicycling.
The Phoenix recently reported on $7 million in Mohawk Valley transportation grants for trails, sidewalks and safer connections in Boonville, Clinton and Herkimer County. Those local projects are smaller, but they reflect the same idea that transportation investment should serve safety and access as well as vehicle movement.
Construction is not completely over
Although the state announced completion, crews were expected to continue paving and landscaping in the following weeks. A road can be open while short-term lane closures, reduced shoulders or work vehicles remain.
Drivers should slow down in active work zones and follow temporary signs. Pedestrians and bicyclists should not assume a route is fully available until barriers are removed and crossings are operating as designed.
Weather can also affect the timing of final paving and planting. A project described as ahead of schedule may still have punch-list work after the main traffic pattern opens.
What travelers should do
- Check 511NY before traveling through the corridor.
- Expect crews and changing lane patterns while finishing work continues.
- Use marked pedestrian crossings and follow temporary detours.
- Give bicyclists room, especially where a new bike lane begins or ends.
- Report damaged signs, blocked sidewalks or signal problems to the responsible transportation agency or local government.
Questions to track after opening
The most useful measure of a transportation project is how it performs after construction. Agencies should track whether crashes decline, whether the bridge and drainage function as designed and whether sidewalks and bicycle facilities remain usable in winter.
Traffic capacity is only one outcome. Residents also need to know whether people can cross safely, whether stormwater drains properly and whether access to nearby homes and businesses has improved.
For local governments considering similar work, the Route 20 project also highlights the value of coordinating underground utilities with road reconstruction. Replacing a large water main during the same project can avoid another major disruption later, although it requires careful scheduling and cost control.
Readers who travel this Erie County corridor can share how the new layout works during an ordinary commute, a Bills game or the Erie County Fair. Firsthand reports about crossings, congestion and bike-lane connections can help identify whether the improvements are meeting their goals.