Concrete Curb | A concrete curb currently separates the 4′ pedestrian path from the travel lanes.
Recycled Plastic Zebra Armadillo | Zebra armadillos provide the vertical separation element that separated bike lanes require. This vertical treatment is a durable, low-cost treatment used in downtown Houston on the Lamar two-way separated bike lane. The armadillos are positioned on the bike lane side of the buffer to allow larger vehicles to use the buffer if necessary.
Rumble Strip | A center line-running rumble strip is present to caution vehicles from crossing the center line on the curvy bridge.
Thermoplastic Lane Markers | Lane markers help distinguish between the pedestrian path and the bike lane. The bike lanes are one-way, while the pedestrian paths are bi-directional.
Asphalt Bike Lane and Pedestrian Path | A smooth 10′ wide asphalt surface allows bicyclists to pass each other with ease when pedestrians aren’t present.
Landscaped Transition Area | A transition to the 70′ planned right-of-way of Crockett St. at the bottom of the bridge allows the opportunity from some traffic calming through landscaping before the on-street parking starts.
The reenvisioned Hogan Street Bridge is simple; two 11′ traffic lanes in the middle, a 4′ buffer on each side with armadillos serving as vertical separation, two 5′ one way bike lanes, and two 5′ pedestrian paths. (See details above)
Because I travel over this bridge every day I know that from personal observation that one vehicle lane in each direction will be adequate enough to serve current and future traffic needs. The four lane bridge that current exists promotes speeding and unsafe passing. Reducing the number of traffic lanes, narrowing the traffic lanes, and adding landscaped islands at the end of each side of the bridge should be effective in reducing vehicle speeds over the bridge.
The Hogan Street bridge carries many “choice” bicyclists and a large population of people who bike out of necessity. A separated bike lane in each direction is not just something that would be nice to have on this bridge, they are crucial for rider safety and comfort.
Crockett, Hogan, and Lorraine, which are all technically the same street, are due to be reconstructed in the 2019 City of Houston Capital Improvement plan. The concept presented here would be a low-cost solution to reallocate the space on this bridge. A low-cost, semi-permanent solution is needed because TxDOT, as part of the North Houston Highway Improvement Project (I-45 re-route), will be demolishing this bridge and reconstructing it when that time comes.
I will revisit the Hogan Street Bridge in the future and present the ultimate ideal vision that TxDOT should consider.