Fresno Explained

Why Is Herndon 50 MPH but Shaw Is 40? How Fresno Designed One Street for Speed

They are two of North Fresno's most important east-west streets. So why can you legally drive faster on Herndon—and why does Herndon sometimes still feel painfully slow?

By Dani Cabrera · All Elite Homes · Brokered by Epique Realty · Updated September 2026

Herndon Avenue generally has a higher speed limit than Shaw Avenue because Fresno designed the two roads for different jobs. Herndon is designated as an expressway built to prioritize cross-town movement and restrict direct property access, while Shaw functions as an arterial with substantially more access to businesses, shopping centers and surrounding streets.

My only speeding ticket in Fresno came on Shaw Avenue roughly 17 years ago.

Maybe that is part of the reason I have spent an unreasonable amount of time since then thinking about something many Fresno drivers have probably wondered themselves: why is Herndon Avenue posted at 50 mph in many areas while much of Shaw Avenue is 40?

From behind the windshield, the question seems reasonable. Both are major east-west roads through North Fresno. For many trips, heading south toward Highway 180 only to come north again on Highway 41, 99 or 168 does not feel like an efficient alternative. Shaw and Herndon become the practical cross-town choices.

But once we started digging through City of Fresno planning documents, traffic engineering records and current projects, the answer became much more interesting than a speed-limit sign.

Across our team at All Elite Homes, we spend a lot of time driving these streets between appointments, listings, neighborhoods and new developments. The difference between Shaw and Herndon is not simply ten miles per hour. It is a lesson in how Fresno grew—and what the city was willing to trade for faster east-west movement.

Herndon and Shaw Were Designed to Do Different Jobs

Fresno's planning documents describe expressways as high-capacity roadways intended primarily for through traffic. Direct driveway access to adjoining property is restricted. Arterials also move large volumes of traffic, but they serve considerably more adjacent development.

That distinction explains something Fresno drivers can see without reading a planning document.

Drive Shaw and you encounter shopping centers, restaurants, businesses and frequent places where vehicles enter or leave the roadway. Drive much of Herndon and a business sitting directly beside you may not even have a driveway onto Herndon.

We see this constantly while moving around Fresno: having a Herndon address does not necessarily mean you can turn directly from Herndon into the property. You may have to turn onto the intersecting north-south street first and enter from there.

The Price of a Faster Herndon Is Less Convenient Access

That restricted access is not an accident.

Fresno planning documents have specifically called for minimizing driveway access along major streets and, where feasible, routing commercial access near Herndon intersections onto the intersecting street instead.

Current development approvals show the same principle in practice. Fresno has approved projects along Herndon with conditions explicitly prohibiting direct Herndon access.

For an individual business or customer, that can be cumbersome. You may pass the property, turn onto another street and then double back through a parking lot or secondary entrance.

But from a transportation standpoint, every driveway removed from an expressway also removes another potential conflict point: a vehicle slowing sharply to turn, someone pulling into traffic, or a queue forming behind a busy entrance.

Across our team, this is one of those details we think matters when explaining different parts of Fresno to clients. Two homes can look similarly located on a map, yet the roads surrounding them can make everyday access feel completely different.

Then Why Doesn't Herndon Always Feel Fast?

This is where the original question gets better.

If Herndon was deliberately designed to move traffic and allows 50 mph in many sections, why can driving it during a busy afternoon still feel like stop-and-go traffic?

One major reason is obvious to anyone who regularly drives the corridor: traffic signals.

The stretch through central North Fresno has major north-south roads crossing Herndon. Even if you can travel 50 mph between intersections, a red light at a major cross street can quickly consume the time you gained.

And contrary to what someone stuck at consecutive red lights might assume, Fresno has already invested heavily in synchronizing Herndon.

Herndon's Traffic Lights Are Already Using Adaptive Technology

In 2018, Fresno approved an Adaptive Intelligent Transportation System project covering 28 intersections along Herndon from Golden State Boulevard to Willow Avenue.

The project included fiber-optic communication, cameras, vehicle detection equipment, updated controllers and adaptive signal technology designed to respond to changing traffic conditions.

In other words, the solution is not as simple as telling Fresno to “sync the lights.”

They already are.

The difficulty is that Herndon does not exist in isolation. Blackstone, Palm, Fresno Street and the other major north-south streets also carry substantial traffic. Giving Herndon an uninterrupted green wave would create problems for everyone trying to cross it.

From our experience driving Fresno daily, this is the frustrating part: Herndon can feel incredibly efficient when the progression works in your favor and surprisingly slow when it does not.

The Real Advantage of Herndon Isn't Just the 50 MPH Sign

The math changes the way we should think about the road.

Herndon's transportation advantage is not simply that drivers can travel ten miles per hour faster between lights.

The bigger advantage is everything Fresno tries to prevent from interrupting traffic between those lights.

Across our team, we think this distinction explains Herndon better than the speed-limit sign ever could. The road is faster because the entire corridor is supposed to protect movement—not because Fresno simply decided drivers there deserved another 10 mph.

Why Didn't Fresno Just Make Shaw Work Like Herndon?

This may be the most interesting question of the entire story.

Fresno's older Bullard Community Plan gives us an important clue. The City anticipated significant traffic volumes on Shaw, but also acknowledged that much of the corridor between Marks and Blackstone was already developed.

Expanding the roadway or acquiring additional right-of-way through an established commercial corridor was described as expensive and potentially infeasible.

Put more simply: by the time Fresno needed more east-west capacity, Shaw already had businesses, parking lots, driveways and established property lines built around it.

Turning an established commercial arterial into a controlled-access expressway would be a dramatically different proposition from preserving access controls as development occurs.

We see the consequences of those different development patterns today. Shaw is extremely useful precisely because so many destinations are directly accessible from it. That same accessibility creates more friction for through traffic.

Fresno Has Been Wrestling With Herndon Bottlenecks for Decades

Historical Fresno planning documents anticipated extremely heavy traffic along Herndon and discussed major intersection improvements to preserve its function.

At sufficiently high traffic volumes, planners even contemplated grade separation at major intersections such as Herndon and Blackstone—essentially allowing traffic movements to cross at different elevations instead of forcing every movement through the same signal.

Fresno has also made smaller intersection-specific changes over the years to reduce queues and turning conflicts.

That history matters because it shows that the frustration Fresno drivers experience today is not a newly discovered problem.

Across our team, we have had the same conversation many Fresno residents have probably had sitting in traffic: North Fresno could use an even more efficient east-west connection. We have jokingly—and sometimes not so jokingly—talked about what an underground express route from the Polk area toward Blackstone and Clovis Avenue might look like. That is our thought experiment, not a City proposal, but the frustration behind the idea is real.

Fresno Is Still Finishing Herndon in 2026

Here's the part that surprised us most: the Herndon expressway project is not really finished.

In September 2026, Fresno approved additional engineering work for the Herndon widening project between Polk and Milburn.

City staff says Fresno's 2035 General Plan designates Herndon as a six-lane expressway and that the City has progressively widened it from four lanes to six over roughly two decades.

The Polk-to-Milburn section is now the last remaining four-lane portion of the corridor. Fresno anticipates construction beginning in 2027 to widen it to three lanes in each direction, including work at the BNSF railroad crossing and construction of a Class I bicycle and pedestrian trail.

You can follow active infrastructure work through the City's Build Fresno project dashboard .

That ongoing investment is especially relevant as Northwest Fresno continues developing. For example, the approved Costco project near Herndon and Riverside adds another major destination to a corridor Fresno is simultaneously trying to preserve for mobility. We covered that development separately in our Northwest Fresno Costco development guide .

What About Safety? Faster Roads Have Another Tradeoff

There is another side of the discussion that should not be ignored.

Fresno's traffic-safety planning identifies higher-speed multilane arterials and expressways, particularly around signalized intersections, as environments that can create significant safety concerns.

That means the transportation equation is not simply speed versus convenience.

It is also mobility versus access versus safety.

California requires engineering and traffic surveys to support many speed zones. Prevailing traffic speeds are an important part of that analysis, but collision history, roadway conditions and certain pedestrian, bicycle and development considerations can also matter under current state rules.

That helps explain why speed limits can change even when the road itself looks essentially the same to someone driving it every day. In 2023, for example, Fresno reduced the speed limit on Shaw between Chestnut and Maple from 45 mph to 40 mph following updated engineering and traffic surveys.

Across our team, we think that context is important. Wanting better east-west mobility does not require pretending there are no consequences to higher vehicle speeds.

Roads Like Herndon Help Explain What Living in Fresno Actually Feels Like

This is where an obscure question about speed limits becomes surprisingly relevant to real estate.

A home's location is not just its distance from work, school or shopping on a map. It is how the transportation network connects those places.

A neighborhood near an efficient expressway connection can feel much closer to the rest of Fresno than mileage alone suggests. A short distance interrupted by congestion, railroad crossings or difficult intersections can feel considerably farther.

That's one reason our approach at All Elite Homes has never been to simply sell someone on a neighborhood. We want to understand how they actually live. Commutes, schools, family routines, restaurants, shopping and which direction someone crosses Fresno every day can matter as much as another bedroom or a larger lot.

If you are evaluating Fresno beyond just home prices, our guide to what living in Fresno is actually like for families looks at that bigger lifestyle picture.

So, Is Herndon Really Fresno's East-West Expressway?

Yes—but with an asterisk.

Fresno deliberately designed Herndon differently from Shaw. Its expressway designation, higher speed limit, restricted property access and decades of widening projects all point toward the same objective: move more people across North Fresno with fewer interruptions.

But Herndon still crosses major north-south streets. Those intersections have to serve traffic too. Adaptive signal technology can help balance those competing demands, but it cannot make the cross traffic disappear.

And that may be the most useful answer to the question that started this whole rabbit hole.

Maybe the better question for Fresno's next few decades isn't whether Herndon should be faster.

It is whether a growing North Fresno eventually needs another way to move east and west without asking one surface street to do almost everything.

Frequently Asked Questions About Herndon and Shaw Avenue

Why is the speed limit 50 mph on Herndon Avenue in Fresno?

Herndon is designated by Fresno as an expressway. Expressways prioritize cross-town movement, restrict direct driveway access and are designed differently from ordinary arterial streets. The actual posted speed for a segment must still be supported by applicable engineering and traffic requirements.

Why is Shaw Avenue mostly 40 mph instead?

Shaw functions as an arterial and serves extensive commercial development, neighborhoods and intersecting streets. It has considerably more access points and turning activity than an access-controlled expressway. Fresno also reduced the Chestnut-to-Maple section of Shaw from 45 to 40 mph in its 2023 speed-zone update following engineering and traffic surveys.

Are the traffic lights on Herndon synchronized?

Yes. Fresno invested in an adaptive traffic-signal system covering 28 intersections on Herndon from Golden State Boulevard to Willow Avenue. The technology uses traffic information to adjust signal operation as conditions change. Synchronization can improve traffic flow, but major cross streets still need sufficient green time of their own.

Why doesn't Herndon have as many driveways as Shaw?

Restricting direct property access is part of Herndon's expressway function. Fresno planning documents and individual development conditions show that properties along Herndon may be required to obtain access from an intersecting or secondary street instead of directly from Herndon.

Is Fresno widening Herndon Avenue?

Yes. As of September 2026, Fresno is advancing the widening of Herndon between Polk and Milburn. City staff identifies it as the final remaining four-lane section of the corridor and anticipates construction beginning in 2027 to widen the segment to six lanes.

Who decides speed limits in Fresno?

The City establishes local speed zones subject to California law. Engineering and traffic surveys are used for applicable roadway segments and can consider factors including prevailing speeds, collision history and roadway conditions, with additional safety considerations allowed under state law.

Where can I see current Fresno road and infrastructure projects?

The City of Fresno's Build Fresno dashboard maps active public projects and provides project information by location. It can be useful for checking infrastructure work near a neighborhood or major corridor.

Where You Live in Fresno Changes How You Experience Fresno

We don't sell neighborhoods. We help people find the right neighborhood for the way they actually live. That includes the house, but it also includes the commute, schools, daily routines, development around you and the roads you will probably drive hundreds of times a year.

If you're comparing different parts of Fresno or the Central Valley, we can help you look beyond the listing photos and understand what everyday life there may actually feel like.

Browse Valley Homes Explore Living in Fresno

Sources & Further Reading

• City of Fresno, Bullard Community Plan — roadway classifications, access management, Shaw development constraints and long-range circulation planning.
• City of Fresno Public Works / City Council records — Herndon Adaptive ITS and Traffic Signal Synchronization Project covering 28 intersections from Golden State Boulevard to Willow Avenue.
• City of Fresno City Council, September 3, 2026 — Herndon Avenue widening between Polk and Milburn; final remaining four-lane corridor segment with construction anticipated in 2027.
• City of Fresno 2023 Special Speed Zone Ordinance update — Shaw Avenue from Chestnut to Maple reduced from 45 mph to 40 mph following engineering and traffic surveys.
• California Department of Transportation — California speed-limit setting and Engineering & Traffic Survey guidance.
• City of Fresno Build Fresno — live infrastructure and capital-project dashboard.