You love the convenience of Sabal Palms and Sabal South near Ambassador Caffery, but the hum of Youngsville Highway can follow you into the backyard. If you are craving a more peaceful, private outdoor space, you are not alone. In this guide, you will learn what actually reduces traffic noise, which plants work in our climate, and what to check before you build. Let’s dive in.
Why traffic noise feels loud here
Youngsville Highway, also known as LA 89, serves growing neighborhoods and carries commuter traffic with occasional heavy vehicles. As the corridor evolves, right sizing or future improvements can change noise exposure over time, so planning with flexibility helps. For context on the route and its function, review the overview of Louisiana Highway 89.
The big idea is simple: if you can see the road from your yard, your ears can likely “see” it too. Designs that block line of sight and absorb or mask sound will feel quieter day to day.
What actually reduces noise
Barrier design basics
A solid barrier that breaks line of sight between the road and your sitting areas delivers the most measurable improvement. Well placed walls or fences typically produce noticeable reductions, with engineering guidance showing approximate 5 to 10 dB decreases for first row yards when the barrier is tall enough and continuous. For design fundamentals, see the FHWA based summary on highway noise barriers.
Key tips:
- Aim for a continuous, air tight barrier. Gaps or lattice let sound through.
- Height matters. The top should be above the line from the road to your seating zone.
- Length matters. Extend the ends so sound does not easily bend around.
Berms and drainage
If you have space, an earth berm with proper slopes performs as well as many walls of the same effective height and looks softer. Berms require careful grading, vegetation for stability, and respect for drainage easements. Before shaping earth, confirm your lot’s flood zone and any drainage servitudes by checking FEMA’s Flood Map Service Center.
Evergreen plant layers
Vegetation alone rarely produces big decibel changes, but it boosts privacy, softens views, and reduces perceived noise. The sweet spot is a layered belt of evergreen plants on the yard side of your barrier. Native and adapted options that local experts recommend include wax myrtle and yaupon holly for dense screening, with larger evergreens like magnolia or live oak where space allows. For plant specifics, see the LSU AgCenter’s note on wax myrtles for privacy screening and this regional guide to hedging plants and hollies.
Important context: research shows vegetation provides small measured reductions unless the belt is deep and dense, but it still improves how quiet your yard feels. Learn more from this summary on vegetation versus highway noise.
Smart yard layout
Place your patio or pool seating with backs to the road when you can. Use softer ground surfaces like mulch or dense groundcover near seating instead of large slabs facing the street, since hard paving reflects sound. Small water features close to the patio add pleasant masking that helps soften intermittent traffic noise.
A simple plan for Sabal Palms and Sabal South
- Walk your yard and mark the noisiest spots. Note where you can see moving traffic from your seating areas.
- Sketch a barrier line at the back or side lot line closest to Youngsville Hwy. Estimate the height needed to block line of sight from the road to your chairs.
- Check rules before you build. Review recorded covenants for your lot and any approvals with the neighborhood’s Architectural Control Committee via Sabal South’s community site, and confirm permit needs with Lafayette Parish for fence height and location.
- Choose your barrier. Solid wood, masonry, or a berm plus fence combination gives the best results. Keep it continuous and extend the ends to reduce “around the edge” sound.
- Layer plants on the yard side of the barrier. Stagger evergreen shrubs and small trees in two or three rows for an opaque screen. Avoid invasive species flagged by the LSU AgCenter, such as Chinese tallow, using this invasives overview.
- Fine tune your living zone. Add a modest water feature near seating, choose softer ground materials, and relocate loud mechanicals away from quiet areas.
- Phase your project if needed. Install the barrier first for instant relief, then add plant layers that fill in over the next few growing seasons.
Climate and site factors to respect
Youngsville sits in a warm, humid subtropical climate with hot, wet summers and mild winters. Choose heat and humidity tolerant evergreens and plan for robust staking on new trees to handle summer storms. Soils and drainage vary, and subdivision drainage designs can limit earthwork, so verify any utility or drainage servitudes before digging.
Rules and permits to check
- HOA and plats. Fences, walls, and visible plantings usually require approval. Review your recorded covenants and contact the ACC through your neighborhood resources, including Sabal South’s site.
- Parish permits. In Lafayette Parish, fences over certain heights usually require a building permit and must respect servitudes and setbacks. Start with the parish page for Permits and Codes.
- Floodplain and drainage. Confirm flood zone designations and any drainage easements before adding berms or retaining features using FEMA’s Flood Map Service Center.
Timeline and upkeep
- What works fastest. A solid wall or berm provides immediate relief once installed. Plants take time to knit together, typically a few seasons for shrubs and several years for taller trees.
- Maintenance. Expect early irrigation, seasonal pruning to keep hedges dense, and routine mulch refresh. Native and adapted species tend to be lower effort in our climate.
- Cost drivers. Walls and earthwork are bigger line items than plantings, but they deliver the largest measurable noise reduction. A quick site review with your contractor will help align design with easements and drainage.
Ready to make your yard quieter?
If you want a backyard that feels private and calm without guesswork, you can blend a solid barrier, layered evergreens, and smart layout to get there. If you would like design forward guidance that aligns with Sabal Palms or Sabal South covenants and local permitting, reach out to Jessica Broussard for a consult.
FAQs
How can I reduce traffic noise in a Sabal Palms backyard?
- Block line of sight with a continuous solid barrier, then add layered evergreen plantings on the yard side and use soft surfaces near seating for perceived quiet.
Do plants alone stop highway noise near Youngsville Hwy?
- Not usually. Dense vegetation helps with privacy and perceived quiet, but measurable drops are small unless the planting band is very wide, so pair plants with a barrier.
What fence height works best for noise along LA 89?
- The top should break the line of sight from the road to your seating area. Taller and continuous barriers perform better than short or gapped fences.
Can I build an 8 foot wall in Lafayette Parish?
- Possibly, but you need to confirm subdivision covenants and parish permit rules since taller fences often require permits and must respect servitudes and setbacks.
What plants screen best in Youngsville’s climate?
- Evergreen options like wax myrtle and yaupon holly are commonly used for dense, low maintenance screening, with larger evergreens like magnolia for taller backdrop layers.