Standard Maintenance

Mechanized Projects  |  Low Ground Pressure Equipment  |  Manual Projects

Mosquitoes require stagnant or non-moving water to survive. Promoting water flow often makes an area unsuitable for mosquito larval development. Ditches, brooks, streams, and rivers that have been maintained historically (prior to the Clean Water Act) are the primary target habitats of the maintenance program. Storm water control structures such as detention/retention ponds and swales may also be maintained.

browned leaves in pool of water

Mosquito Larvae in Detention Pond Oak Leaves ~ Georgetown

Mechanized Projects: The District uses custom-fabricated “low ground pressure” equipment to excavate heavy sediment loads, emergent vegetation and downed trees from drainage and waterways. Typically mechanized projects (larger scale) occur during the late fall through early spring. This enables the District to take advantage of low-flow opportunities and to be respectful of time of year restrictions.


newbury   newbury 2  new3

 Before ~ Newbury                   During ~ Newbury                    After ~ Newbury



Mechanized Projects

The District uses custom-fabricated “low ground pressure” equipment to excavate heavy sediment loads, emergent vegetation and downed trees from drainage and waterways. Typically mechanized projects (larger scale) occur during the late fall through early spring. This enables the District to take advantage of low-flow opportunities and to be respectful of time of year restrictions.
 

Before - Newbury

During - Newbury

After - Newbury

 

Before Sediment Removal - Peabody

Before Sediment Removal - Peabody

 

After Sediment Removal - Peabody

After Sediment Removal - Peabody

Before Stream Clearing - Newbury

Before Stream Clearing - Newbury

After Stream Clearing - Newbury

After Stream Clearing - Newbury

Cement Swale Maintenance During - 		Revere

Cement Swale Maintenance During

Revere      

Cement Swale Maintenance After - Revere

Cement Swale Maintenance After

Revere     


Low Ground Pressure Equipment

The District implements all mechanized wetlands work with custom fabricated low ground pressure equipment. Excavators, crawler dumps, and mowing/grading machines (many of which were originally snow machines built to ride across the snow surface) have been adapted with extra wide tracks that distribute the weight evenly across the wetlands. All District equipment operates in the range of approximately 3 – 3.25 lbs per square inch or less and has minimal to no impact on the wetland surface when operated by the District’s experienced staff.

equipment on wetlands

wide tread on piece of equipment


Manual Projects

The District clears smaller blockages (leaves, small branches, overhanging vegetation and debris) with hand tools such as: long-handled potato hooks, rakes, shovels, loppers and occasionally brush and/or chain saws.

wetland field

Manual Salt Marsh Ditch Maintenance - Before, Winthrop

wetland field stream

Manual Salt Marsh Ditch Maintenance - After, Winthrop

Clearing debris from drainage infra-structure (culvert gratings) is also accomplished by hand. This type of manual work decreases vector mosquito species habitat by allowing connected street drainage (catch basins) to function properly. Manual work occurs year-round and typically coincides with regularly scheduled operations.

Manual Fresh Water Drainage Work - Before

Manual Fresh Water Drainage Work - Before

Manual Fresh Water Drainage Work -  After

Manual Fresh Water Drainage Work - After