506Temporary Erosion, Sedimentation,

2.1 Rock Filter Dams.

2.1.1 Aggre gate. Furnish aggregate with approved hardness, durability, cleanliness, and resistance to crumbling,

flaking, and eroding. Provide the following.  Types 1, 2, and 4 Rock Filter Dams. Use 3 –6-in. aggregate.  Type 3 Rock Filter Dams. Use 4 –8-in. aggregate.

2.1.2 Wire . Provide minimum 20- gauge galvanized wire for the steel wire mesh and tie wires for Types 2 and 3

rock filter dams. Type 4 dams require:  a double- twisted, hexagonal weave with a nominal mesh opening of 2- 1/2 × 3-1/4 in. ,  minimum 0.0866- in. steel wire for netting,  minimum 0.1063- in. steel wire for selvages and corners , and  minimum 0.0866 in. for binding or tie wire.

2.1.3 Sandbag Material . Furnish sandbags meeting Section 506.2.8., “Sandbags,” except that any gradation of

aggregate may be used to fill the sandbags.

2.2 Temporary Pipe Slope Drains . Provide corrugated metal pipe, polyvinyl chloride (PVC) pipe, flexible tubing,

watertight connection bands, grommet materials, prefabricated fittings, and flared entrance sections as shown on the plans. Recycled and other materials meeting these requirements are allowed if approved. 781 Furnish concrete in accordance with Item 432.

2.3 Temporary Paved Flumes. Furnish asphalt concrete, hydraulic cement concrete, or other comparable

non-erodible material as shown on the plans. Provide rock or rubble with a minimum diameter of 6 in. and a maximum volume of 1/2 cu. ft. for the construction of energy dissipaters.

2.4 Construction Exits . Provide materials as shown on the plans and in accordance with this Section.

2.4.1 Rock Constru ction Exit . Provide crushed aggregate for long- and short -term construction exits. Furnish

aggregates that are clean, hard, durable, and free of adherent coatings such as salt, alkali, dirt, clay, loam, shale, soft or flaky materials, and organic and injur ious matter. Use 4– 8-in. aggregate for Type 1. Use 2– 4-in. aggregate for Type 3.

2.4.2 Timber Construction Exit . Furnish No. 2 quality or better railroad ties and timbers for long- term construction

exits, free of large and loose knots and treated to control rot. Fasten timbers using nuts and bolts or lag bolts, of at least 1/2 in. diameter, unless otherwise shown on the plans or allowed. Provide plywood or pressed wafer board at least 1/2 in. thick for short -term exits.

2.4.3 Foundation Course . Provide a foundation course consisting of flexible base, bituminous concrete, hydraulic

cement concrete, or other materials as shown on the plans or directed.

2.5 Embankment for Erosion Control . Provide rock, loam, clay, topsoil, or other earth materials that will form a

stable embankment to meet the intended use.

2.6 Pipe . Provide pipe outlet material in accordance with Item 556 and as shown on the plans.

2.7 Construction Perimeter Fence .

2.7.1 Posts . Provide essentially straight wood or steel posts that are at least 60 in. long. Fur nish soft wood posts

with a minimum diameter of 3 in. or use nominal 2 × 4- in. boards. Furnish hardwood posts with a minimum cross- section of 1- 1/2 × 1-1/5 in. Furnish T - or L-shaped steel posts with a minimum weight of 1.25 lb. per foot.

2.7.2 Fence. Provide or ange construction fencing as approved.

2.7.3 Fence Wire. Provide 14 -gauge or larger galvanized smooth or twisted wire. Provide 16- gauge or larger tie

wire.

2.7.4 Flagging. Provide brightly colored flagging that is fade- resistant and at least 3/4 in. wide to provide

maximum visibility both day and night.

2.7.5 Staples. Provide staples with a crown at least 1/2 in. wide and legs at least 1/2 in. long.

2.7.6 Used Materials. Previously used materials meeting the applicable requirements may be used if approved.

2.8 Sandbags . Provide sandbag material of polypropylene, polyethylene, or polyamide woven fabric with a

minimum unit weight of 4 oz. per square yard, a Mullen burst -strength exceeding 300 psi, and an ultraviolet (UV) stability exceeding 70%. Use natural coarse sand or manufactured sand meeting the gradation shown in Table 1 to fill sandbags. Filled sandbags must be 24– 30 in. long, 16– 18 in. wide, and 6– 8 in. thick. 782 Table 1 Sand Gradation Sieve Size Retained (% by Weight) #4 Maximum 3% #100 Minimum 80% #200 Minimum 95% Aggregate may be used instead of sand for situations where sandbags are not adjacent to traffic. The aggregate size must not exceed 3/8 in.

2.9 Temporary Sediment Control Fence . Provide a net -reinforced fence using woven geotextile fabric. Logos

visible to the traveling public will not be allowed.

2.9.1 Fabric . Provide fabric materials in accordance with DMS -6230 , “Temporary Sediment Control Fence Fabric.”

2.9.2 Posts . Provide essentially straight wood or steel posts with a minimum length of 48 in., unless otherwise

shown on the plans. Furnish soft wood posts at least 3 in. in diameter or use nominal 2 × 4- in. boards. Furnish hardwood posts with a minimum cross -section of 1- 1/2 × 1-1/2 in. Furnish T - or L-shaped steel posts with a minimum weight of 1. 25 lb. per foot.

2.9.3 Net Reinforcement . Provide net reinforcement of at least 12.5- gauge (Standard Wire Gauge) galvanized

welded wire mesh, with a maximum opening size of 2 × 4 in., at least 24 in. wide, unless otherwise shown on the plans.

2.9.4 Staples. Provide staples with a crown at least 3/4 in. wide and legs 1/2 in. long.

2.9.5 Used Materials. Use recycled material meeting the applicable requirements if approved.

2.10 Biodegradable Erosion Control Logs .

2.10.1 Core Material . Furnish core material that is biodegradable or recyclable. Use compost, mulch, aspen

excelsior wood fibers, chipped site vegetation, agricultural rice or wheat straw, coconut fiber, 100% recyclable fibers, or any other acceptable material unless specifically shown on the plans. Permit no mor e than 5% of the material to escape from the containment mesh. Furnish compost in accordance with Item 161.

2.10.2 Containment Mesh. Furnish containment mesh that is 100% biodegradable, photodegradable, or recyclable, such as burlap, twine, UV photodegradable plastic, polyester, or any other acceptable material.

Furnish biodegradable or photodegradable containment mesh when log will remain in place as part of a vegetative system. Furnish recyclable containment mesh for temporary installations.

2.10.3 Size. Furnish biodegradable erosion control logs with diameters as shown on the plans or as directed. Stuff

containment mesh densely so logs do not deform.

3.1 Contractor Responsible Person Environmental (CRPE) Qualifications and Responsibilities . Provide

and designate in writing at the preconstruction conference a CRPE and alternate CRPE who have overall responsibility for managing environmental compliance. The CRPE will implement stormwater and erosion control practices , oversee and observe stormwater control measure monitoring and management , oversee environmental compliance requirements, and monitor the project site daily and produce daily monitoring reports as long as there are BMPs in place or soil disturbing activities are evident to ensure compliance with the SWP3 and TPDES CGP TXR150000. Take required training in accordance with Section 7.7.4.4, “Training.” 783 Maintain daily monitor reports and make them available within 24 hr. upon request. During time suspensions when work is not occurring or on Contract non- work days, daily inspections are not required unless a rain event has occurred. The CRPE will provide recommendations on how to improve the effectiveness of control measures. Attend the Department’s preconstruction conference for the project. Ensure training is completed in accordance with Section 7.7.4.4., “Training,” by all applicable personnel before employees work on the project . Document , maintain, and make available within 24 hr. of a request, a list, signed by the CRPE, of all applicable Contractor and subcontractor employees who have completed the training. Include the employee’s name, the training course name, and the date the employee completed the training.

3.2 Contractor Superintendent Qualificat ions and Responsibilities . Provide a superintendent who is

competent, has experience with and knowledge of stormwater management, and is knowledgeable of the requirements and the conditions of the TPDES CGP TXR150000. The superintendent will manage and oversee the day -to-day operations and activities at the project site, work with the CRPE to provide effective stormwater management at the project site, represent and act on behalf of the Contractor , and attend the Department’s preconstruction conference for the project. Take training as required in Section 7.7.4.4. , “Training.”

4.1 Contractor Responsibilities. Implement the SWP3 for the project site in accordance with the plans and

specifications, TPDES CGP TXR150000, and as directed. Coordinate stormwater management with all other work on the project. Develop and implement an SWP3 for project -specific material supply plants within and outside the Department’s right of way in conformance with the specific or general stormwater permit requirements. Prevent water pollution from stormwater associated with construction activity from entering any surface water or private property on or adjacent to the project site.

4.2 Implementation . The CRPE, or alternate CRPE , must be accessible by tele phone and able to respond to

project -related stormwater management or other environmental emergencies 24 hr. per day.

4.2.1 Commencement . Implement the SWP3 as shown on the plans and as directed. Contractor -proposed

recommendations for changes will be allowed as approved. Conform to the established guidelines in the TPDES CGP TXR150000 to make changes. Do not implement changes until approval has been received and changes have been incorporated into the plans. Minor adjustments to meet field conditions are allowed and will be recorded in the SWP3.

4.2.2 Phasing . Implement control measures before the commencement of activities that result in soil disturbance.

Phase and minimize the soil disturbance to the areas shown on the plans. Coordinate temporar y control measures with permanent control measures and all other work activities on the project to assure economical, effective, safe, and continuous water pollution prevention. Provide control measures that are appropriate to the construction means, methods, and sequencing allowed by the Contract. Exercise precaution throughout the life of the project to prevent pollution of ground waters and surface waters. Schedule and perform clearing and grubbing operations so that stabilization measures will follow immediately thereafter if project conditions permit. Bring all grading sections to final grade as soon as possible and implement temporary and permanent control measures at the earliest time possible. Implement temporary control measures when required by TPD ES CGP TXR150000 or otherwise necessitated by project conditions. Do not prolong final grading and shaping. Preserve vegetation where possible throughout the project, and minimize clearing, grubbing, and excavation within stream banks, bed, and approach sections.

4.3 General .

4.3.1 Temporary Alterations or Control Measure Removal . Altering or removal of control measures is allowed

when control measures are restored within the same working day. 784 4.3.2. Stabilization . Initiate stabilization for disturbed areas no more than 14 days after the construction activities in that portion of the site have temporarily or permanently ceased. Establish a uniform vegetative cover or use another stabilization practice in accordance with TPDES CGP TXR150000.

4.3.3 Finished Work . Remove and dispose of all temporary control measures upon acceptance of vegetative

cover or other stabilization practice unless otherwise directed. Complete soil disturbing activities and establish a uniform perennial vegetative cover. A project will not be considered for ac ceptance until a vegetative cover of 70% density of existing adjacent undisturbed areas is obtained or equivalent permanent stabilization is obtained in accordance with TPDES CGP TXR150000. The Engineer may accept the work before vegetative cover of 70% density of existing adjacent undisturbed areas. An exception will be allowed in arid areas as defined in TPDES CGP TXR150000.

4.3.4 Restricted Activities and Required Precautions. Do not discharge onto the ground or into surface waters

any pollutants such as chemi cals, raw sewage, fuels, lubricants, coolants, hydraulic fluids, bitumens, or any other petroleum product. Operate and maintain equipment onsite to prevent actual or potential water pollution. Manage, control, and dispose of litter onsite such that no adverse impacts to water quality occur. Prevent dust from creating a potential or actual unsafe condition, public nuisance, or condition endangering the value, utility, or appearance of any property. Wash out concrete trucks only as described in TPDES CGP TXR1 50000. Use appropriate controls to minimize the offsite transport of suspended sediments and other pollutants if it is necessary to pump or channel standing water (i.e. , dewatering). Immediately address chemical and hydrocarbon spills caused by the Contrac tor. Keep a spill kit onsite. Prevent discharges that would contribute to a violation of Edwards Aquifer Rules, water quality standards , the impairment of a listed water body, or other state or federal law.

4.4 Installation, Maintenance, and Removal Work. Perform work in accordance with the SWP3, in

conformance with manufacturers’ guidelines, and in accordance with TPDES CGP TXR150000. Install and maintain the integrity of temporary erosion and sedimentation control devices to accumulate silt and debris until soil disturbing activities are completed and permanent erosion control features are in place, or the disturbed area has been adequately stabilized as approved. The Department will inspect and document the condition of the control measures at the frequency shown on the plans and will provide the Construction SWP3 Field Inspection and Maintenance Reports to the Contractor. Make corrections as soon as possible before the next anticipated rain event or within 7 calendar days after being able to enter the w orksite for each control measure. The only acceptable reason for not accomplishing the corrections within the timeframe specified is when site conditions are considered “too wet to work.” Take immediate action if a correction is deemed critical as directed. When corrections are not made within the established timeframe, all work will cease on the project and time charges will continue while the control measures are brought into compliance. Commence work once the Engineer reviews and documents the project is in compliance. Commencing work does not release the Contractor of the liability for noncompliance with the SWP3, the plans, or TPDES CGP TXR150000. The Engineer m ay limit the disturbed area if the Contractor cannot control soil erosion and sedimentation resulting from the Contractor’s operations. Implement additional controls as directed. Remove devices upon approval or as directed. Finish- grade and dress the area upon removal. Stabilize disturbed areas in accordance with TPDES CGP TXR150000, and as shown on the plans or directed. Materials removed are considered consumed by the project. Retain ownership of stockpiled material and remove it from the project when new installations or replacements are no longer required.

4.4.1 Rock Filter Dams for Erosion Control . Remove trees, brush, stumps, and other objectionable material that

may interfere with the construction of rock filter dams. Place sandbags as a foundation when required or at the Contractor’s option. Place the aggregate to the lines, height, and slopes specified, without undue voids for Types 1, 2, 3, and 5. Place the aggregate on the mesh and then fold the mesh at the upstream side over the aggregate and secure it to itself on the downstream side using wire ties, or hog rings for Type 2 and Type 3, or as directed. 785 Place rock filter dams perpendicular to the flow of the stream or channel unless otherwise directed. Construct filter dams in accordance with the following criteria unless otherwise shown on the plans . 4.4.1.1. Type 1 (Non -Reinforced) .  Height . At least 18 in. measured vertically from existing ground to top of filter dam.  Top Width. At least 2 ft.  Slopes . No steeper than 2:1. 4.4.1.2. Type 2 (Reinforced) .  Height . At least 18 in. measured vertically from existing ground to top of filter dam.  Top Width. At least 2 ft.  Slopes . No steeper than 2:1. 4.4.1.3. Type 3 (Reinforced) .  Height . At least 36 in. measured vertically from existing ground to top of filter dam.  Top Width. At least 2 ft.  Slopes . No steeper than 2:1. 4.4.1.4. Type 4 (Sack Gabions) . Unfold sack gabions and smooth out kinks and bends. Connect the sides by lacing in a single- loop- double- loop pattern on 4– 5-in. spacing for vertical filling. Pull the end lacing rod at one end until tight, wrap around the end, and twist four times. Fill with stone at the filling end, pull t he rod tight, cut the wire with approximately 6 in. remaining, and twist wires four times. Place the sack flat in a filling trough, fill with stone, connect sides, and secure ends as described above for horizontal filling. Lift and place without damaging t he gabion. Shape sack gabions to existing contours. 4.4.1.5. Type 5. Provide rock filter dams as shown on the plans.

4.4.2 Temporary Pipe Slope Drains . Install pipe with a slope as shown on the plans or as directed. Construct

embankment for the drainage system in 8- in. lifts to the required elevations. Hand- tamp the soil around and under the entrance section to the top of the embankment as shown on the plans or as directed. Form the top of the embankment or earth dike over the pipe slope drain at least 1 ft. higher than t he top of the inlet pipe at all points. Secure the pipe with hold- downs or hold- down grommets spaced at most 10 ft. on center. Construct the energy dissipaters or sediment traps as shown on the plans or as directed. Construct the sediment trap using concrete or rubble riprap in accordance with Item 432, when shown on the plans.

4.4.3 Temporary Paved Flumes. Construct paved flumes as shown on the plans or as directed. Provide

excavation and embankment (including compaction of the subgrade) of material to the dimensions shown on the plans unless otherwise indicated. Install a rock or rubble riprap energy dissipater, constructed from the materials specified above, to a minimum depth of 9 in. at the flume outlet to the limits shown on the plans or as directed.

4.4.4 Construction Exits. Prevent traffic from crossing or exiting the construction site or moving directly onto a

public roadway, alley, sidewalk, parking area, or other right of way areas other than at the location of construction exits when tracking conditions exist . Construct exits for either long- or short -term use. 4.4.4.1. Long- Term . Place the exit over a foundation course as required. Grade the foundation course or compacted subgrade to direct runoff from the construction exits to a sediment trap as shown on the plans or as directed. Construct exits with a width of at least 14 ft. for one -way and 20 ft. for two -way traffic for the full width of the exit, or as directed. 4.4.4.1.1. Type 1. Construct to a depth of at least 8 in. using crushed aggregate as shown on the plans or as directed. 786 4.4.4.1.2. Type 2. Construct using railroad ties and timbers as shown on the plans or as directed. 4.4.4.2. Short -Term . 4.4.4.2.1. Type 3. Construct using crushed aggregate, plywood, or wafer board. This type of exit may be used for daily operations where long- term exits are not practical. 4.4.4.2.2. Type 4. Construct as shown on the plans or as directed.

4.4.5 Earthwork for Erosion Control . Perform excavation and embankment operations to minimize erosion and

to remove collected sediments from other erosion control devices. 4.4.5.1. Excavation and Emban kment for Erosion Control Features . Place earth dikes, swales, or combinations of both along the low crown of daily lift placement, or as directed, to prevent runoff spillover. Place swales and dikes at other locations as shown on the plans or as directed to prevent runoff spillover or to divert runoff. Construct cuts with the low end blocked with undisturbed earth to prevent erosion of hillsides. Construct sediment traps at drainage structures in conjunction with other erosion control measures as shown on the plans or as directed. Create a sediment basin, where required, providing 3,600 cu. ft. of storage per acre drained, or equivalent control measures for drainage locations that serve an area with 10 or more disturbed acres at one time, not including offs ite areas. 4.4.5.2. Excavation of Sediment and Debris. Remove sediment and debris when accumulation affects the performance of the devices, after a rain, and when directed.

4.4.6 Construction Perimeter Fence . Construct, align, and locate fencing as shown on the plans or as directed.

4.4.6.1. Installation of Posts . Embed posts 18 in. deep or adequately anchor in rock, with a spacing of 8– 10 ft. 4.4.6.2. Wire Attachment . Attach the top wire to the posts at least 3 ft. from the ground. Attach the lower wire midway between the ground and the t op wire. 4.4.6.3. Flag Attachment . Attach flagging to both wire strands midway between each post. Use flagging at least 18 in. long. Tie flagging to the wire using a square knot.

4.4.7 Sandbags for Erosion Control . Construct a berm or dam of sandbags that will intercept sediment -laden

stormwater runoff from disturbed areas, create a retention pond, detain sediment, and release water in sheet flow. Fill each bag with sand so that at least the top 6 in. of the bag is unfilled to allow for proper tying of the open end. Place the sandbags with their tied ends in the same direction. Offset subsequent rows of sandbags 1/2 the length of the preceding row. Place a single layer of sandbags downstream as a secondary debris trap. Place additional sandbags as necessary or as directed for supplementary support to berms or dams of sandbags or earth.

4.4.8 Temporary Sediment Control Fence . Provide temporary sediment control fence near the downstream

perimeter of a disturbed area to intercept sediment from sheet flow. Incorporate the fence into erosion control measures used to control sediment in areas of higher flow. Install the fence as shown on the plans, in accordance with this Section, or as directed. 4.4.8.1. Installation of Posts . Embed posts at least 18 in. deep or adequately anchor, if in rock, w ith a spacing of 6--8 ft., and install on a slight angle toward the runoff source. 4.4.8.2. Fabric Anchoring. Dig trenches along the uphill side of the fence to anchor 6– 8 in. of fabric. Provide a minimum trench cross -section of 6 × 6 in. Place the fabric against the side of the trench and align approximately 2 in. of fabric along the bottom in the upstream direction. Backfill the trench, then hand -tamp. 787 4.4.8.3. Fabric and Net Reinforcement Attachment . Attach the reinforcement to wooden posts using staples, or to steel posts using T- clips, in at least four places equally spaced unless otherwise shown on the plans. Sewn vertical pockets may be used to attach reinforcement to end posts. Fasten the fabric to the top strand of reinforcement using hog rings or cord every 15 in. or less. 4.4.8.4. Fabric and Net Splices. Locate splices at a fence post with a minimum lap of 6 in. attached in at least six places equally spaced unless otherwise shown on the plans. Do not locate splices in concentrated flow areas. Requirements for installation of used temporary sediment control fence include the following:  fabric with minimal or no visible signs of biodegradation (weak fibers),  fabric without excessive patching (more than one patch every 15–20 ft.),  posts without bends, and  backing without holes.

4.4.9 Biodegradable Erosion Control Logs . Install biodegradable erosion control logs near the downstream

perimeter of a disturbed area to intercept sediment from sheet flow. Incorporate the biodegradable erosion control logs into the erosion measures used to control sediment in areas of higher flow. Install, align, and locate the biodegradable erosion control logs as specified below, as shown on the plans, or as directed. Secure biodegradable erosion control logs in a method adequate to prevent displacement resulting from normal rain events, to prevent damage to the logs, and as approved, such that flow is not allowed under the logs. Temporarily removing and replacing biodegradable erosion logs to facilitate daily work is allowed at the Contractor’s expense.

4.4.10 Vertical Tracking . Perform vertical tracking on slopes to temporarily stabilize soil. Provide equipment with a

track undercarriage capable of producing a linear soil impression measuring at least 12 in. long × 2 –4 in. wide × 1/2–2 in. deep. Do not exceed 12 in. between track impressions. Install continuous linear track impressions where the 12- in. length impressions are perpendicular to the slope. Vertical tracking is required on projects where soil disturbing activities have occurred, unless otherwise approved.

4.5 Monitoring and Documentation . Monitor the control measures daily as long as there are BMPs in place or

soil disturbing activities are evident to ensure compliance with the SWP3 and TPDES CGP TXR150000. During time suspensions when work is not occurring or contract non- work days, daily inspections are not required unless a rain event has occurred. Monitoring will consist of, but is not limited to, observing, inspecting, and documenting site locations with control measures and discharge points to provide maintenance and inspection of controls in accordance with the SWP3. Keep written records of daily monitoring. Document in the daily monitoring report the control measure condition, the date of inspection, required corrective actions, the res ponsible person for making the corrections, and the date corrective actions were completed. Maintain records of all monitoring reports at the project site or at an approved place. Provide copies within 7 days. Together, the CRPE and an Engineer’s represent ative will complete the Construction Stage Gate Checklist periodic ally as directed.

5.1 Rock Filter Dams. Installation or removal of rock filter dams will be measured by the foot or by the cubic

yard. The measured volume will include sandbags, when used.

5.1.1 Linear Measurement . When rock filter dams are measured by the foot, measurement will be along the

centerline of the top of the dam.

5.1.2 Volume Measurement . When rock filter dams are measured by the cubic yard, measurement will be based

on the volume of rock computed by the method of average end areas. 5.1.2.1. Installation . Measurement will be made in final position. 788 5.1.2.2. Removal . Measurement will be made at the point of removal.

5.2 Temporary Pipe Slope Drains . Temporary pipe slope drains will be measured by the foot.

5.3 Temporary Paved Flumes. Temporary paved flumes will be measured by the square yard of surface area.

The measured area will include the energy dissipater at the flume outlet.

5.4 Construction Exits . Construction exits will be measured by the square yard of surface area.

5.5 Earthwork for Erosion and Sediment Control .

5.5.1 Equipment and Labor Measurement . Equipment and labor used will be measured by the actual number of

hours the equipment is operated and the labor is engaged in the work.

5.5.2 Volume Measurement .

5.5.2.1. In Place. 5.5.2.1.1. Excavation . Excavation will be measured by the cubic yard in its original position and the volume computed by the method of average end areas. 5.5.2.1.2. Embankment . Embankment will be measured by the cubic yard in its final position by the method of average end areas. The volume of embankment will be determined between:  the original ground surfaces or the surface upon which the embankment is to be constructed for the feature and  the lines, grades , and slopes of the accepted embankment for the feature. 5.5.2.2. In Vehicles. Excavation and embankment quantities will be combined and paid for under “Earthwork (Erosion and Sediment Control, In Vehicle).” Excavation will be measured by the cubic yard in vehicles at the point of removal. Embankment will be measured by the cubic yard in vehicles measured at the point of delivery. Shrinkage or swelling factors will not be considered in determining the calculated quantities.

5.6 Construction Perimeter Fence . Construction perimeter fence will be measured by the foot.

5.7 Sandbags for Erosion Control . Sandbags will be measured as each sandbag or by the foot along the top of

sandbag berms or dams.

5.8 Temporary Sediment Control Fence . Installation or removal of temporary sediment control fence will be

measured by the foot.

5.9 Biodegradable Erosion Control Logs . Installation or removal of biodegradable erosion control logs will be

measured by the foot along the centerline of the top of the control logs.

5.10 Vertical Tracking . Vertical tracking will not be measured or paid for directly , but will be subsid iary to this

Item.

6.1 Rock Filter Dams. The work performed and materials furnished in accordance with this Item and measured

as provided under “Measurement” will be paid for at the unit price bid as follows .

6.1.1 Installa tion. Installation will be paid for as “Rock Filter Dams (Install)” of the type and slope as specified.

This price is full compensation for furnishing and operating equipment, finish backfill and grading, lacing, proper disposal, labor, materials, tools, and incidentals.

6.1.2 Removal . Removal will be paid for as “Rock Filter Dams (Remove).” This price is full compensation for

furnishing and operating equipment, proper disposal, labor, materials, tools, and incidentals. When the Engineer directs that the rock fil ter dam installation or portions thereof be replaced, payment will be made at the unit price bid for “Rock Filter Dams (Remove)” and for “Rock Filter Dams (Install)” of the type specified. This price is full compensation for furnishing and operating equipm ent, finish backfill and grading, lacing, proper disposal, labor, materials, tools, and incidentals.

6.2 Temporary Pipe Slope Drains . The work performed and materials furnished in accordance with this Item

and measured as provided under “Measurement” will be paid for at the unit price bid for “Temporary Pipe Slope Drains” of the size specified. This price is full compensation for furnishing materials, removal and disposal, furnishing and operating equipment, labor, tools, and incidentals. Removal of temporary pipe slope drains will not be paid for directly , but will be subsidiary to the installation Item. When the Engineer directs that the pipe slope drain installation or portions thereof be replaced, payment will be made at the unit price bid for “Temporary Pipe Slope Drains” of the size specified, which is full compensation for the removal and reinstallation of the pipe drain. Earthwork required for the pipe slope drain installation, including construction of the sediment trap, will be measured and paid for under “Earthwork for Erosion and Sediment Control.” Riprap concrete or stone, when used as an energy dissipater or as a stabilized sediment trap, will be measured and paid for in accordance with Item 432.

6.3 Temporary Paved Flumes. The work performed and materials furnished in accordance with this Item and

measured as provided under “Measurement” will be paid for at the unit price bid for “Temporary Paved Flume (Install)” or “Temporary Paved Flume (Remove).” This price is full compensation for furnishing and plac ing materials, removal and disposal, equipment, labor, tools, and incidentals. When the Engineer directs that the paved flume installation or portions thereof be replaced, payment will be made at the unit prices bid for “Temporary Paved Flume (Remove)” and “Temporary Paved Flume (Install).” These prices are full compensation for the removal and replacement of the paved flume and for equipment, labor, tools, and incidentals. Earthwork required for the paved flume installation, including construction of a sediment trap, will be measured and paid for under “Earthwork for Erosion and Sediment Control.” 790 6.4. Construction Exits . Contractor -required construction exits from off right of way locations or on right of way PSLs will not be paid for directly , but will be subsidiary to pertinent Items. The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” for construction exits needed on right of way access to work areas required by the Department will be paid for at the unit price bid for “Construction Exits (Install)” of the type specified or “Construction Exits (Remove).” This price is full compensation for furnishing and placing materials, excavatin g, removal and disposal, cleaning vehicles, labor, tools, and incidentals. When the Engineer directs that a construction exit or portion thereof be removed and replaced, payment will be made at the unit prices bid for “Construction Exit (Remove)” and “Cons truction Exit (Install)” of the type specified. These prices are full compensation for the removal and replacement of the construction exit and for equipment, labor, tools, and incidentals. Construction of sediment traps used in conjunction with the constr uction exit will be measured and paid for under “Earthwork for Erosion and Sediment Control.”

6.5 Earthwork for Erosion and Sediment Control .

6.5.1 Initial Earthwork for Erosion and Sediment Control . The work performed and materials furnished in

accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for “Excavation (Erosion and Sediment Control, In Place),” “Embankment (Erosion and Sediment Control, In Place),” “Excavation (Erosion and Sediment Control, In Vehicl e),” “Embankment (Erosion and Sediment Control, (In Vehicle),” or “Earthwork (Erosion and Sediment Control, In Vehicle).” This price is full compensation for excavation and embankment , including hauling; disposal of material not used elsewhere on the project; embankments including furnishing material from approved sources and construction of erosion control features; and equipment, labor, tools, and incidentals. Sprinkling and rolling required by this Item will not be paid for directly , but will be subsidia ry to this Item.

6.5.2 Maintenance Earthwork for Erosion and Sediment Control for Cleaning and Restoring Control Measures. The work performed and materials furnished in accordance with this Item and measured as

provided under “Measurement” will be paid under a C ontractor Force Account Item from invoice provided to the Engineer. This price is full compensation for excavation, embankment, and re -grading, including dewatering for removal of accumulated sediment , and the removal of accumulated sediment in various erosion control installations as directed, hauling, and disposal of material not used elsewhere on the project; excavation for construction of erosion control features; embankments , including furnishing material from approved sources and construction of erosi on control features; and equipment, labor, tools, and incidentals. Earthwork needed to remove and obliterate erosion control features will not be paid for directly , but will be subsidiary to pertinent Items unless otherwise shown on the plans. Sprinkling and rolling required by this Item will not be paid for directly , but will be subsidiary to this Item.

6.6 Construction Perimeter Fence . The work performed and materials furnished in accordance with this Item

and measured as provided under “Measurement” will be paid for at the unit price bid for “Construction Perimeter Fence.” This price is full compensation for furnishing and placing the fence; digging, fence posts, wire, and flagging; removal and disposal; and materials, equipment, labor, tools, and incidentals . Removal of construction perimeter fence will not be paid for directly , but will be subsidiary to the installation Item. When the Engineer directs that the perimeter fence installation or portions thereof be removed and replaced, payment will be made at the unit price bid for “Construction Perimeter Fence,” which is full compensation for the removal and reinstallation of the construction perimeter fence. 791 6.7. Sandbags for Erosion Control . Sandbags will be paid for at the unit price bid for “Sandbags for Erosion Control” (of the height specified when measurement is by the foot). This price is f ull compensation for materials, placing sandbags, removal and disposal, equipment, labor, tools, and incidentals. Removal of sandbags will not be paid for directly , but will be subsidiary to the installation Item. When the Engineer directs that the sandbag installation or portions thereof be replaced, payment will be made at the unit price bid for “Sandbags for Erosion Control,” which is full compensation for the reinstallation of the sandbags.

6.8 Temporary Sediment Control Fence . The work performed and materi als furnished in accordance with this

Item and measured as provided under “Measurement” will be paid for at the unit price bid as follows .

6.8.1 Installation . Installation will be paid for as “Temporary Sediment -Control Fence (Install).” This price is full

compensation for furnishing and operating equipment , finish backfill and grading, lacing, proper disposal, labor, materials, tools, and incidentals .

6.8.2 Removal . Removal will be paid for as “Temporary Sediment -Control Fence (Remove).” This price is full

compensation for furnishing and operating equipment, proper disposal, labor, materials, tools, and incidentals.

6.9 Biodegradable Erosion Control Logs . The work performed and materials furnished in accordance with this

Item and measured as provided under “Measurement” wi ll be paid for at the unit price bid as follows .

6.9.1 Installation . Installation will be paid for as “Biodegradable Erosion Control Logs (Install)” of the size

specified. This price is full compensation for furnishing and operating equipment , finish backfill and grading, staking, proper disposal, labor, materials, tools, and incidentals.

6.9.2 Removal . Removal will be paid for as “Biodegradable Erosion Control Logs (Remove).” This price is full

compensation for furnishing and operating equipment, proper disposal, labor, materials, tools, and incidentals.

6.10 Vertical Tracking . Vertical tracking will not be measured or paid for directly , but will be subsidiary to this

Item.