Slope stabilization cost reckoner for Malaysia.
Indicative cost reckoner for Malaysian slope stabilization. Unit rates by intervention type (soil nail, sub-horizontal drains, rockfall systems, rock bolts, retaining walls, monitoring) plus five worked examples covering common project scenarios from residential hillside to federal corridor and emergency response. Numbers based on Malaysian projects delivered 2022 to 2026. Use for initial budget benchmarking; commission specific quote for procurement. Maintained by Infraconcrete Construction Sdn Bhd, CIDB G7 + ISO 9001:2015 + Professional Indemnity insurance.
Indicative unit rates by intervention.
| Intervention | Unit | Low | High | Drivers |
|---|---|---|---|---|
| Soil nailing (standard) | per m2 finished face | RM 280 | RM 450 | Residual soil, galvanised, shotcrete facing |
| Soil nailing (DCP corrosion protection) | per m2 finished face | RM 380 | RM 650 | Federal corridor specification |
| Pre-stressed soil nail | per m2 finished face | RM 500 | RM 950 | Movement control critical |
| Sub-horizontal drain | per metre of bore | RM 95 | RM 450 | Geology, access, length, liner |
| Rockfall netting (drape mesh) | per m2 face | RM 180 | RM 450 | High-tensile mesh, crest + toe anchorage |
| Rockfall netting (pinned mesh) | per m2 face | RM 300 | RM 650 | Includes rock dowels at grid |
| Rockfall barrier 500 kJ (ETAG 027) | per linear m barrier line | RM 8,000 | RM 14,000 | Foundations, anchorage, kit, install |
| Rockfall barrier 2000 kJ | per linear m | RM 14,000 | RM 20,000 | Larger posts, heavier foundation |
| Rockfall barrier 5000-8000 kJ | per linear m | RM 18,000 | RM 25,000 | Specialist install |
| Rock dowel (passive) | per metre installed | RM 350 | RM 700 | 25-32 mm bar, 4-8 m length |
| Rock bolt (post-tensioned) | per metre installed | RM 600 | RM 1,200 | 32-50 mm bar with pull-test |
| Permanent ground anchor (rock) | per metre installed | RM 1,000 | RM 2,500 | C2 corrosion protection, 50-120 year life |
| Shotcrete / guniting | per m2 face | RM 180 | RM 380 | 75-150 mm thick with welded mesh |
| Slope surface protection (geocell + TRM + hydroseed) | per m2 face | RM 60 | RM 220 | Vegetated finish, two-year establishment |
| Gabion retaining wall | per m3 wall volume | RM 520 | RM 880 | Modest height, drainage-positive |
| MSE / reinforced soil wall | per m2 face | RM 650 | RM 1,400 | Geosynthetic reinforcement, 3-25 m height |
| RC cantilever retaining wall | per m2 face | RM 950 | RM 1,800 | Architectural finish requirement |
| Slope re-grading | per m3 cut | RM 15 | RM 90 | Where footprint allows |
| Hazard assessment + report | per slope | RM 4,000 | RM 30,000 | Walkover vs full geotechnical inspection |
| Slope monitoring (inclinometer + piezometer) | per slope per year | RM 18,000 | RM 80,000 | Install plus reading service |
| BS 8081 acceptance pull-out testing | per test | RM 800 | RM 3,500 | Per BS 8081 category |
| Emergency mobilisation premium | uplift on base rates | +20% | +40% | Active-distress response 24-48 hr Klang Valley |
Indicative ranges based on Malaysian projects 2022-2026. Mobilisation, site facilities, traffic management, authority coordination billed separately. Programme volume discount applies above 500 m or 2,000 m2 typical thresholds.
Residential hillside bungalow slope retrofit.
Scenario. Hillside bungalow lot 1,200 m2 in Klang Valley. Visible slope distress signs (cracks in retaining wall, vegetation discontinuity, drainage settlement). Slope face area 350 m2, 12 m high, 50 degree average angle. Residual soil. Standard access via existing driveway.
| Item | Quantity | Rate | Cost (RM) |
|---|---|---|---|
| Hazard assessment plus geotechnical inspection | 1 slope | RM 18,000 | 18,000 |
| Sub-horizontal drains (groundwater control) | 6 bores at 25 m each = 150 m | RM 220 | 33,000 |
| Soil nailing with shotcrete (standard, galvanised) | 350 m2 face | RM 360 | 126,000 |
| Slope surface protection (geocell + hydroseed verge) | 120 m2 around face | RM 140 | 16,800 |
| Drainage outlet works to JPS approved discharge | 1 set | RM 12,000 | 12,000 |
| Site facilities + mobilisation | 1 set | RM 18,000 | 18,000 |
| Indicative project total | RM 223,800 |
Programme. 6-9 weeks site duration from mobilisation to commissioning. Engagement route: full design-and-build under single CIDB G7 contract.
Township phase development slope works.
Scenario. Township phase release on Class III hillside in Selangor. Total cut slope area 4,500 m2 across 8 cuts. Mixed residual soil and weathered granite. JPBD Class III planning approval requires documented geotechnical works.
| Item | Quantity | Rate | Cost (RM) |
|---|---|---|---|
| Geotechnical design + JKR-format submission | 1 design package | RM 95,000 | 95,000 |
| Soil nailing with shotcrete (standard plus DCP on critical 30 percent) | 4,500 m2 face | RM 410 average | 1,845,000 |
| Sub-horizontal drains | 32 bores at 35 m = 1,120 m | RM 195 | 218,400 |
| BS 8081 acceptance testing programme | 140 tests | RM 1,800 | 252,000 |
| Surface protection on non-shotcrete faces | 800 m2 | RM 95 | 76,000 |
| Monitoring instrumentation install + 1 year readings | 3 sections | RM 48,000 each | 144,000 |
| Mobilisation + site facilities | 1 programme | RM 95,000 | 95,000 |
| Indicative project total | RM 2,725,400 |
Programme. 14-22 weeks site duration. Engagement route: full design-and-build under single CIDB G7 contract with named technical lead and project superintending officer.
Federal corridor cut slope upgrade.
Scenario. Federal road cut slope 18 m high, 60 m long, JKR Class II maintenance hierarchy. Existing slope showing distress under post-monsoon inspection. Full DCP corrosion protection specified, BS 8081 testing programme, traffic management per JKR standard, named technical reviewer at JKR.
| Item | Quantity | Rate | Cost (RM) |
|---|---|---|---|
| Hazard assessment + intervention design | 1 package | RM 65,000 | 65,000 |
| Soil nailing DCP corrosion protection | 1,080 m2 face | RM 520 | 561,600 |
| Sub-horizontal drains | 14 bores at 45 m = 630 m | RM 280 | 176,400 |
| BS 8081 full programme (suitability + acceptance) | 65 tests | RM 2,400 | 156,000 |
| Drainage works + outlet to JPS-approved discharge | 1 set | RM 78,000 | 78,000 |
| Traffic management (TTM) per JKR standard | 10-week deployment | RM 35,000 per week | 350,000 |
| Monitoring inclinometer + piezometer + 2-year readings | 2 sections | RM 70,000 each | 140,000 |
| Mobilisation + site facilities | 1 programme | RM 85,000 | 85,000 |
| Handover documentation per JKR standard | 1 package | RM 28,000 | 28,000 |
| Indicative project total | RM 1,640,000 |
Programme. 10-14 weeks site duration plus 4-8 weeks for design + tender + mobilisation. Engagement route: design-and-build under CIDB G7 with named superintending officer per federal employer specification.
Emergency post-failure remediation.
Scenario. Active slope distress on hillside development. Crack opening, paving settlement, evacuation of 2 affected units. 24-48 hour mobilisation. Stage 1 emergency stabilisation pending permanent works design.
| Stage / item | Quantity / scope | Cost (RM) |
|---|---|---|
| Stage 1: Emergency response (24-48 hr) | ||
| Emergency mobilisation premium (20-40 percent uplift on standard rates) | 1 deployment | 32,000 |
| Site safety, cordoning, evacuation support | 1 package | 18,000 |
| Tarpaulin slope cover, surface drainage | 1 set | 15,000 |
| Initial inclinometer + piezometer (3 holes) | 3 instruments | 42,000 |
| Stage 1 verbal report + photo dossier (48 hr) | 1 package | 12,000 |
| Stage 1 subtotal | 119,000 | |
| Stage 2: Geotechnical investigation (2-4 weeks) | ||
| Boreholes 4 nos at 25 m depth with SPT and lab tests | 4 boreholes | 180,000 |
| Slope stability analysis (Bishop + Spencer + FEM SRM) | 1 study | 85,000 |
| Remediation design + drawings + BoQ | 1 package | 120,000 |
| Stage 2 subtotal | 385,000 | |
| Stage 3: Permanent works construction (6-12 weeks) | ||
| Permanent stabilisation per Stage 2 design (typical residential scope) | per worked example 1 plus complexity | 320,000-650,000 |
| Stage 3 subtotal | 320,000-650,000 | |
| Indicative project total | RM 824,000 - 1,154,000 |
Programme. Stage 1 within 48 hours of instruction. Stage 2 2-4 weeks. Stage 3 6-12 weeks. Total programme 9-18 weeks from instruction to completion.
Monitoring-only engagement (no immediate works).
Scenario. Hillside township JMB has identified concerns on common-area slope after recent monsoon. Engineering inspection indicates monitoring rather than immediate intervention. 2-year monitoring engagement to verify stability and provide early warning.
| Item | Quantity | Cost (RM) |
|---|---|---|
| Baseline geotechnical inspection + report | 1 inspection | 24,000 |
| Inclinometer installation (3 boreholes at 20-30 m) | 3 instruments | 78,000 |
| Piezometer installation (4 standpipes) | 4 instruments | 32,000 |
| Optical survey monitoring points (12 reference markers) | 1 set | 18,000 |
| Monthly readings + quarterly summary report (24 months) | 24 months | 72,000 |
| End-of-engagement final assessment report | 1 report | 18,000 |
| Indicative engagement total | RM 242,000 |
Programme. Baseline inspection within 2 weeks of instruction. Instrument install 3-4 weeks. Monitoring period 24 months. End-of-engagement report within 4 weeks of final reading.
This engagement format is the most cost-effective approach for many JMB and MC slope-safety governance cases. Where monitoring confirms stability, no intervention is required and the engagement closes. Where monitoring reveals progressive distress, the data supports a fully-informed intervention design at substantially lower cost than reactive post-event response.
How to apply these numbers.
- Budget benchmarking and feasibility. Use the worked examples and unit rates to size your budget envelope. Confirm whether the project fits financial capacity before committing to a full design programme.
- Cost sense-check on quotes received. Compare quotes you receive from contractors against the indicative ranges here. Quotes materially below the low end warrant scrutiny on specification adequacy; quotes materially above the high end warrant scrutiny on scope justification.
- Negotiation reference for buyers. Property buyers on hillside developments can reference the post-failure remediation cost (worked example 4, RM 824k to 1.15m for residential scale) when assessing whether pre-purchase intervention cost is reasonable.
- JMB and MC reserve planning. Use the monitoring-only example (RM 242k over 24 months) and worked example 1 (residential retrofit at RM 224k) to plan slope-safety reserve allocation in JMB and MC budgets. Both are within the realistic budget envelope for most strata developments.
- Do not use as procurement document. The numbers here are not a quote. They are indicative reference. Any procurement decision requires a specific quote based on site-specific scope, current market conditions, and the contractor's confirmed availability and qualification.
From reckoner to real quote.
For a slope-specific indicative range within 48 hours: WhatsApp +60 16-428 1214 with site location and access description; slope geometry (height, angle, area, drainage layout); photos of slope and surrounding context; any existing geotechnical study or SI report; consultant design drawings if available; target programme dates; target factor of safety or design objective. Same-day acknowledgement. Formal BoQ within 5-15 working days.
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