Impacts Associated with Location and Design

Location of Borrow Pits and Quarry Sites

·         Borrow pit sites must be chosen in areas where water logging problems will not occur in the future

·         Borrow pits must be located in lands where the effect would be temporary and generally involve lower value land.

·         For quarries, where alternative sites are available, the lowest value production land must be selected

·         The aggregate crushing plants should be away from settlement areas and pollution control mechanisms need to be installed.

All locations of selected river beds, quarries and borrow pits determined at detailed design stage

During the design stage

Include in

design

Design Consultant and Contractor

PIU, DOR / GESU

Impacts Associated with Construction Stage

Stockpiling of Construction Materials

·         Land for the stockpiling of construction materials must be suitably selected such that it does not occupy private land and affect agricultural lands

·         Clean area promptly after completion

·         The storage areas should not be located less than 500 metres from water bodies

Stockpiling

sites

Construction

stage

Include in

design

Design Consultant and Contractor

PIU, DOR / GESU

Blasting

·         Seek approval for blasting from the Supervising Consultant.

·         Restrict all blasting to the hours of 9:00 – 16:30.

·         Conduct controlled blasting complying with rules under Explosives Act (1961). Prior notice shall be given to all local residents and the VDC.

·         Inspect and approve blasting where significant hard rock occurs. Inspect blasting operation during the course of construction.

Location of blasting sites.

Construction

Construction contract

Contractor

DSC

DSC, PD/DOR

PD/DOR

Air Pollution

·         The bitumen heating plants need to be established where the effects are minimal on  the surrounding inhabitants

·         Bitumen heating plants should have  in‑built in mechanisms and facilities for the absorption of gases

·         The contractor will be required to minimize dust during the construction by sprinkling water regularly especially in the inhabitants areas

·         In the areas nearby the school, the works should be done only after school

Project area,

crushing plants, bitumen heating plants

Construction

stage

Include in

design

Contractor

PIU, DOR / GESU

Noise Pollution and Vibration Effect

·         Attempts have to be made to operate heavy construction equipment away from the settlement areas as far as possible during the day time only. Cracks caused by vibration need to be monitored closely. If such problems arise, an alternative method has to be employed.

·         For the safety of  construction workers, masks, earplugs, hard hats, boots etc. must be provided while on duty.

·         If the use of heavy equipment is required nearby the school’s, clinic, the contractor needs to obtain permission from the school’s principal and the head of the medical clinic

Project area,

crushing plants, bitumen heating plants

Construction

stage

Include in

design

Contractor

PIU, DOR / GESU

Water Pollution

·         Safe disposal of wastes

Subproject area

Construction 

Contractor

PIU, DOR / GESU

Stress on Public Utilities

·         The Contractor needs to arrange for sufficient water supply and proper sanitation facilities for its labour force. Separate arrangements are necessary for work and labour camps.

·         No labour/worker camps allowed to be located nearby water bodies

Subproject area, labor Camp,

Construc-tion stage

Include in detailed design

Contractor

PIU, DOR / GESU

Nuisance from Construction Camps

·         The Engineer must instruct the Contractor to avoid any water related problems during construction works. The Contractor  should ensure that local water supply does not become contaminated by use of cement, bitumen etc.

·         The timely and proper disposal of the solid wastes would be the responsibility of the Contractor.

Construction and labor camps

Construction stage

Include in detailed design

Contractor

PIU, DOR / GESU

Accident Risk and Road Safety

·         Information signboards should be placed as precautionary measures.

·         Special measures need to be adopted by contractor for construction works nearby public facilities

Subproject area

Pre-construction and construction stage

30,000

Design Consultant and Contractor

PIU,  DOR / GESU

Occupational Health and Safety

·         Protective clothing including hard hats, boots and  gloves should be provided to the labourers

·         At every work place, a readily available first aid unit including an adequate supply of dressing materials should be provided

Subproject area

Construction stage

Include in detailed design

Contractor

PIU, DOR / GESU

Impacts Associated with Operational Stage

Air and Noise Pollution

·         Provide signs and speed restrictions on the road sections within dense settlements to reduce vehicle speed and dust generation

·         Plant trees as a barrier between the road and the settlements

·         Strict enforcement of vehicle emission standards

Subproject area

Operation stage

Include in detailed design

Design Consultant,

Department of. Transport  Management,

Traffic Police

PIU, DOR / GESU

Accident Risk and Road Safety

·         Speed must be controlled by putting up speed limit signs and enforcing them.

Project Area

Operation stage

Include in detailed design

Design Consultant DOR

PIU, DOR / GEU