Traffic Calming & Pedestrian Protection
Speed Bumps & Bollards for St. Louis Parking Lots
Reduce vehicle speeds, protect pedestrians, and eliminate liability exposure in your parking lot. STL Line Striping installs rubber speed bumps, asphalt speed humps, steel bollards, and flexible delineator posts — all with ADA-compliant, high-visibility markings.
Speed Bump Services
We install and paint every speed bump and hump type used in St. Louis commercial properties — from bolt-down rubber modules to poured asphalt humps.
Rubber Speed Bumps
Modular bolt-down rubber units — installed in sections across the full lane width. Retro-reflective yellow markings included. Ideal for parking lots that need removable traffic calming. $200–$400 per unit installed.
Asphalt Speed Humps
Permanent poured-in-place humps — 3–4 inches tall over 12–14 feet. Best for drive aisles and residential-adjacent lots. Painted with high-visibility yellow diagonals after cure.
Speed Bump Painting
Repainting faded speed bumps with high-visibility yellow and black diagonal markings. Meets St. Louis County fire code and ADA contrast requirements. Applied with our Titan PowrLiner 850 for clean, durable lines.
Speed Bump Removal
Safe removal of rubber bolt-down units and grinding of asphalt humps. Surface restoration included — lot surface is left clean and even after removal. Necessary before sealcoating or lot repaving.
Bollard Services
Bollards define vehicle boundaries, protect storefronts, and guide traffic through drive aisles. We install and paint the full range of commercial bollard types used in St. Louis parking facilities.
Steel Pipe Bollards
Permanent 4–6 inch diameter steel pipe bollards set in concrete — minimum 3.5 feet below grade. For storefronts, fuel islands, equipment protection, and building corners. High-visibility yellow powder coat or paint finish.
Flexible Delineator Posts
Impact-resistant spring-back delineator posts for drive aisle guidance and pedestrian separation. Surface-mounted or core-drilled. Returns to upright after vehicle impact — no damage, no replacement needed.
Bollard Covers & Sleeves
High-visibility yellow HDPE sleeves fitted over existing steel pipe bollards. Fast upgrade to deteriorating or unpainted bollards — no excavation required. Improves driver visibility and lot aesthetics.
Bollard Painting & Repainting
Repainting existing steel or concrete bollards with high-visibility yellow markings. Wire brush prep, primer, and two-coat finish. Extends bollard service life and restores code-compliant visibility.
Why Traffic Calming Matters for Your Property
Liability Reduction
A pedestrian struck in your parking lot can result in six-figure litigation costs. Speed bumps and bollards document that you took reasonable precautions — a key factor in liability defense.
Pedestrian Safety
At 10 mph, a struck pedestrian faces a 25% fatality risk. At 30 mph, that risk exceeds 80%. Speed bumps reduce drive aisle speeds from 25–30 mph down to 5–10 mph — a measurable safety improvement.
Insurance Requirements
Many commercial property and liability insurers now require traffic calming devices in parking lots above a certain size. Bollards around storefronts and ATMs are increasingly standard in underwriting requirements.
Property Value
Well-maintained traffic control signals professional property management to tenants, buyers, and lenders. Parking lot condition is a standard item on commercial property inspection reports.
Placement Best Practices
- ▸Near pedestrian crossings and building entrances
- ▸At the start and end of drive aisles exceeding 150 feet
- ▸In front of loading zones and dumpster enclosures
- ▸Before stop signs, T-intersections, and yield points
- ▸Around fuel islands and propane cage areas
- ▸At storefront building lines to prevent vehicle intrusion
- ▸Along pedestrian walkways separating foot and vehicle traffic
ADA Compliance for Speed Bumps in Parking Lots
Speed bumps must be installed and marked to remain compliant with ADA Standards for Accessible Design and local St. Louis County codes.
ADA Standard C608.51
Detectable Warning Surfaces
Speed bumps adjacent to accessible pedestrian routes require detectable warning surfaces (truncated domes) at the transition points. These warn visually impaired pedestrians of the elevation change.
Fire Code & ADA Visibility
High-Contrast Markings
Speed bumps must have high-contrast markings — typically alternating 6-inch yellow and black diagonal stripes across the full width. Faded or missing markings violate both ADA contrast requirements and local fire codes.
ADA Standard 402
Cannot Block Accessible Routes
Speed bumps must never be placed on an accessible route connecting accessible parking to a building entrance. Accessible routes require a continuous clear path — speed bumps placed across these routes create a code violation.
Transparent Pricing — Speed Bumps & Bollards
All pricing includes installation labor, markings, and cleanup. Free on-site estimates for projects with 5 or more units.
| Service | Rate |
|---|---|
| Rubber Speed Bump (installed) | $200–$400 /unit |
| Asphalt Speed Hump (poured) | Quote required |
| Speed Bump Painting / Repainting | $75–$150 /unit |
| Speed Bump Removal | $100–$200 /unit |
| Steel Pipe Bollard (concrete-set) | $300–$500 /unit |
| Flexible Delineator Post | $150–$250 /unit |
| Bollard Cover / Sleeve | $50–$100 /unit |
| Bollard Painting / Repainting | $75–$125 /unit |
| Minimum Trip Charge | $450 |
Rates reflect St. Louis metro market pricing. Final quote depends on site conditions, concrete depth, and unit count. No hidden charges.
Speed Bump & Bollard FAQ
What's the difference between speed bumps and speed humps?▼
Speed bumps are 3–6 inches tall with an abrupt rise over 1–2 feet — vehicles slow to 2–10 mph. Speed humps are 3–4 inches tall spread over 12–14 feet, allowing 15–20 mph passage with less jarring. Bumps are best for parking lots. Humps suit wider drive lanes and entrance roads.
Do speed bumps need to be painted?▼
Yes — both ADA and fire codes require high-visibility markings. St. Louis County code requires speed bumps to have high-contrast diagonal stripes or solid yellow markings across the full width. Unpainted bumps create liability exposure if a driver or pedestrian is injured because the bump was not visible.
How much do parking lot bollards cost?▼
Bollard installation in St. Louis runs $150–$500 per bollard depending on type. Flexible delineator posts (surface-mounted) are $150–$250 each. Steel pipe bollards set in concrete are $300–$500 depending on depth and finish. Bollard sleeves added to existing posts are $50–$100 each.
Where should speed bumps be placed in a parking lot?▼
Place speed bumps near pedestrian crossings, at the start and end of drive aisles, in front of loading zones, before stop signs or T-intersections, and near building entrances. Avoid placing them on fire lanes or accessible routes — both create code violations.
Protect Your Parking Lot — Get a Free Estimate
Speed bumps and bollards are one of the lowest-cost, highest-impact upgrades a parking lot can have. We size and place every unit correctly the first time.
Serving St. Louis City, St. Louis County, St. Charles County, and the greater metro area.