Category:173 Erosion Control for Maintenance Operations - Revision history

Hoskir at 19:13, 12 December 2024

2024-12-12T19:13:52Z

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	Land Disturbance Training, Design & Construction Divisions, 2010.		Land Disturbance Training, Design & Construction Divisions, 2010.

	[[Category:~~100 General~~]]		[[Category:100_GENERAL]]

Hoskir at 20:29, 26 November 2024

2024-11-26T20:29:33Z

← Older revision		Revision as of 15:29, 26 November 2024
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	Land Disturbance Training, Design & Construction Divisions, 2010.		Land Disturbance Training, Design & Construction Divisions, 2010.

			[[Category:100 General]]

Hallej1: /* 173.8.3 Additional References */

2022-08-30T15:25:04Z

173.8.3 Additional References

← Older revision		Revision as of 10:25, 30 August 2022
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	[http://epg.modot.org/index.php?title=Category:806_Pollution%2C_Erosion_and_Sediment_Control EPG 806 Pollution, Erosion and Sediment Control]		[http://epg.modot.org/index.php?title=Category:806_Pollution%2C_Erosion_and_Sediment_Control EPG 806 Pollution, Erosion and Sediment Control]

	~~Erosion Control Best Practices, Organizational Results, July 2010.~~

	''Highway Slope Maintenance and Slide Restoration Workshop Manual'', FHWA December 1988.		''Highway Slope Maintenance and Slide Restoration Workshop Manual'', FHWA December 1988.

	Land Disturbance Training, Design & Construction Divisions, 2010.		Land Disturbance Training, Design & Construction Divisions, 2010.

Smithk: /* 173.1.6 Regulatory Conditions for Working in Streams/Wetlands: NWP, Section 401 Water Quality Certification General Conditions */ Per Env'l, guidance expanded to align with the updated MoDOT/MDNR Memorandum of Understanding (MOU)

2022-01-10T19:11:34Z

173.1.6 Regulatory Conditions for Working in Streams/Wetlands: NWP, Section 401 Water Quality Certification General Conditions: Per Env'l, guidance expanded to align with the updated MoDOT/MDNR Memorandum of Understanding (MOU)

← Older revision		Revision as of 14:11, 10 January 2022
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	===173.1.6 Regulatory Conditions for Working in Streams/Wetlands: NWP, Section 401 Water Quality Certification General Conditions===		===173.1.6 Regulatory Conditions for Working in Streams/Wetlands: NWP, Section 401 Water Quality Certification General Conditions===

	1. ~~During construction~~, ~~clearing~~ of vegetation ~~will~~ be ~~kept~~ to the ~~minimum necessary~~ to ~~accomplish~~ the project.		'''1.''' Missouri Water Quality Standards antidegradation requirements dictate all appropriate and reasonable Best Management Practices (BMPs) related to erosion and sediment control, project stabilization, and prevention of water quality degradation are applied and maintained ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(3)]); for example, preserving vegetation, streambank stability, and basic drainage. BMPs shall be properly installed prior to conducting authorized activities and maintained, repaired, and/or replaced as needed during all phases of the project to limit the amount of discharge of water contaminants to waters of the state. The project shall not involve more than normal stormwater or incidental loading of sediment caused by project activities so as to comply with Missouri’s general water quality criteria ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)]). Also refer to [[127.29 Stormwater\|EPG 127.29 Stormwater]] and [[LPA:136.6 Environmental and Cultural Requirements#136.6.4.8 Stormwater and Erosion Control\|EPG 136.6.4.8 Stormwater and Erosion Control]].

	2. ~~Petroleum products, hazardous chemicals, hazardous wastes, equipment~~ and ~~solid waste~~ will ~~not~~ be ~~stored after construction working hours below~~ the ~~ordinary high water mark~~.		'''2.''' Temporary stream crossings shall be sized and placed appropriately and shall not create an impediment to the passage of aquatic organisms and/or sediment. This will ensure compliance with the Missouri Water Quality Standards general criterion requiring waters to be free from physical or hydrologic changes that would impair the natural biological community ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)(H)]).

	3. ~~Equipment will not~~ be ~~operated in wetlands areas~~, ~~except where permitted~~, ~~expressed by~~ the project ~~plans or the engineer~~ in ~~writing~~. ~~Petroleum products~~ will ~~not~~ be ~~stored in wetlands~~.		'''3.''' Stream channel modifications shall be avoided as much as possible and, if needed, shall be minimized. Where modifications are necessary for highway design safety or protection of state infrastructure, to the extent practicable, the project shall incorporate natural channel design features relative to a morphologically stable and appropriate stream channel and incorporate measures such as grade control, in-stream habitat, riparian plantings, etc. This will ensure compliance with the Missouri antidegradation requirement that waters of the state shall be maintained and protected ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(3)]) under Missouri Clean Water Law, which provides the Department authority to adopt remedial measures to prevent, control, or abate pollution ([https://revisor.mo.gov/main/OneSection.aspx?section=644.026 Section 644.026.1(9)]).

	4. ~~Riparian areas~~ and ~~streambanks will~~ be ~~restored~~ to a ~~stable condition~~ as ~~soon~~ as ~~possible after final contouring~~.		'''4.''' The following materials are not suitable where contact with water is expected and shall not be used due to their potential to cause violations of the general criteria of Missouri’s Water Quality Standards ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)]): earthen fill, gravel, and broken concrete where the material does not meet the Suitable Material specifications stated in the [https://usace.contentdm.oclc.org/digital/collection/p16021coll11/id/2662/ “Missouri Nationwide Permit Regional Conditions”] in locations where erosive flows are expected to occur on a regular basis, such as streambanks and/or lake shorelines; asphalt; concrete with exposed rebar; tires, vehicles or vehicle bodies, and construction or demolition debris are solid waste and are excluded from placement in the waters of the state, but properly sized, broken concrete without exposed rebar is allowed; liquid concrete, including grouted riprap, if not placed in forms as part of an engineered structure; material containing chemicals that would result in violation of Missouri Water Quality Standards general criteria ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)]) or specific criteria ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(5)]).

	5. ~~Work done~~ in ~~streams shall~~ be ~~conducted during low flows whenever~~ that ~~is reasonably possible~~.		'''5.''' Waste concrete or concrete rinsate shall be disposed of in a manner that does not result in any discharge to the jurisdictional water ways. This will ensure compliance with the Missouri Water Quality Standards general criteria requiring waters be free from unsightly bottom deposits ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)(A)]); substances resulting in toxicity ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)(D)]); and physical, chemical, or hydrologic changes that would impair the natural biological community ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)(H)]).

	6. ~~Petroleum products spilled into any stream~~ or ~~body~~ of ~~water~~ will ~~be cleaned up immediately and~~ the ~~collected petroleum products shall be disposed of properly~~.		'''6.''' During construction, clearing of vegetation shall be kept to the minimum necessary to accomplish the project except for the removal of invasive or noxious species and placement of ecologically beneficial practices. This will ensure compliance with the Missouri antidegradation requirement for BMPs ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(3)]).

	7. ~~The following~~ materials shall not be ~~used~~ for ~~streambank stabilization~~: ~~earthen fill~~, ~~gravel~~, ~~fragmented asphalt~~, ~~broken concrete~~, ~~including grouted rip~~-~~rap~~.		'''7.''' Care shall be taken to keep machinery out of the water way as much as possible. If work in the water way is unavoidable, it shall be performed in a way that minimizes the duration and amount of any disturbance to banks, substrate, and vegetation to prevent increases in turbidity. Fuel, oil and other petroleum products, equipment, construction materials and any solid waste shall not be stored below the ordinary high-water mark at any. All precautions shall be taken to avoid the release of wastes or fuel to streams and other adjacent waters as a result of this operation. This will ensure compliance with the Missouri Water Quality Standards antidegradation requirement for Best Management Practices ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(3)]) and Missouri Water Quality Standards general criteria requiring waters be free from substances preventing beneficial uses ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)(A)]); substances causing unsightly color or turbidity ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)(C)]); and physical, chemical or hydrologic changes that would impair the natural biological community ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)(H)]).

			'''8.''' Disturbed riparian areas, banks, etc., shall be restored to a stable condition to protect water quality as soon as possible. This will ensure compliance with the Missouri antidegradation requirement for BMPs ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(3)]).

			'''9.''' All efforts shall be made to minimize exposure of unprotected soils. To the best of MoDOT’s or its contractor’s ability, project activity shall be conducted at times of little or no rainfall to limit the amount of overland flow as well as sediment disturbance and transport caused by heavy equipment. This will ensure compliance with the Missouri antidegradation requirement for BMPs ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(3)]) and general criteria ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)]).

			'''10.''' Any stockpiled excess material resulting from the project shall be managed with appropriate BMPs or removed from the site and placed beyond the high bank on a non-wetland site. This will ensure compliance with the Missouri Water Quality Standards antidegradation requirement that waters of the state shall be maintained and protected ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(3)]) and general criterion requiring waters to be free from physical, chemical, or hydrologic changes that would impair the natural biological community ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)(H)]).

			'''11.''' Petroleum products spilled into any water or on the banks where the material may enter waters of the state shall be cleaned up immediately and disposed of properly. Spills of any amount of petroleum in a waterway shall be reported as soon as possible, but no later than 24 hours after discovery, to [https://dnr.mo.gov/waste-recycling/investigations-cleanups/environmental-emergency-response Missouri Dept. of Natural Resources’ Environmental Emergency Response website] or phone line at (573) 634-2436. This will ensure compliance with Missouri Environmental Improvement Authority ([https://www.revisor.mo.gov/main/OneSection.aspx?section=260.015&bid=13845&hl= Section 260.015, RSMo]) to provide for the conservation of state water resources by the prevention of pollution and proper methods of disposal and Missouri Water Quality Standards general criteria requiring waters be free from substances that prevent maintenance of beneficial uses; cause unsightly color, turbidity, or toxicity; and/or impair the natural biological community ([https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi70t6i56f1AhXtj4kEHfjnAMoQFnoECAQQAQ&url=https%3A%2F%2Fwww.sos.mo.gov%2Fadrules%2Fcsr%2Fcurrent%2F10csr%2F10c20-7a.pdf&usg=AOvVaw0VV937x0qgcKZQf0G2yHCH 10 CSR 20-7.031(4)]).

	===173.1.7 Summary===		===173.1.7 Summary===

Smithk: /* 173.2 Slide Detection and Repair */ Per Env'l, updated and expanded to reflect the new permit cycle, particularly the obligations of the new comprehensive permit obligations of the TS4. Generally, the changes to the permit do not alter MoDOT's overall stormwater or land disturbance program.

2021-12-10T19:45:07Z

173.2 Slide Detection and Repair: Per Env'l, updated and expanded to reflect the new permit cycle, particularly the obligations of the new comprehensive permit obligations of the TS4. Generally, the changes to the permit do not alter MoDOT's overall stormwater or land disturbance program.

← Older revision		Revision as of 14:45, 10 December 2021
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	===173.2.1 Governing Regulations===		===173.2.1 Governing Regulations===

	'''CWA Section 402 (Land Disturbance).''' If repair of a slide involves earth moving and “damage to the root zone” of more than one acre, ~~a DNR Land Disturbance Permit must~~ be ~~obtained~~. ~~Existing permits for road construction~~ will ~~not~~		'''CWA Section 402 (Land Disturbance).''' If repair of a slide involves earth moving and “damage to the root zone” of more than one acre, compliance with MoDOT’s state operating permit for area wide land disturbance will be required. A site-specific stormwater pollution prevention plan (SWPPP) will be required. The SWPPP shall outline sediment controls such as perimeter silt fence and ditch check to be installed to keep the sediment from leaving the job site while slope repair will be occurring. Regularly scheduled and post runoff inspections will be required once the land disturbance operation begins until a final stabilization is achieved.
	~~apply in these circumstances~~. ~~Once a permit is obtained,~~ sediment controls such as perimeter silt fence and ditch ~~checks will need~~ to be installed to keep the sediment from leaving the job site while slope repair is occurring and until a final ~~grass cover~~ is achieved.

	'''CWA Sections 401 and 404.''' If the slide involves a regulated (jurisdictional) stream or wetland it may be necessary to obtain Department of Army Corps of Engineers (COE) authorization before doing work in and around		'''CWA Sections 401 and 404.''' If the slide involves a regulated (jurisdictional) stream or wetland it may be necessary to obtain Department of Army Corps of Engineers (COE) authorization before doing work in and around the stream or wetland.
	the stream or wetland.

	===173.2.2 Project Name: Bourbon Slide Repair===		===173.2.2 Project Name: Bourbon Slide Repair===
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	\|[[image:173.2.4.5.jpg\|center\|375px\|thumb\|<center>'''Rock placement began when 1/2 of the soil excavation was completed due to the risk of having so much unprotected slope along the roadway.'''</center>]]\|\|[[image:173.2.4.6.jpg\|center\|375px\|thumb\|<center>'''Completed repair. A bulldozer was used to maintain the haul road. After the operations, both sites were seeded and mulched. Temporary erosion control (silt fence) was used to keep silt from entering the streams.'''</center>]]		\|[[image:173.2.4.5.jpg\|center\|375px\|thumb\|<center>'''Rock placement began when 1/2 of the soil excavation was completed due to the risk of having so much unprotected slope along the roadway.'''</center>]]\|\|[[image:173.2.4.6.jpg\|center\|375px\|thumb\|<center>'''Completed repair. A bulldozer was used to maintain the haul road. After the operations, both sites were seeded and mulched. Temporary erosion control (silt fence) was used to keep silt from entering the streams.'''</center>]]
	\|}		\|}


	==173.3 Slope Erosion Prevention and Sediment Control==		==173.3 Slope Erosion Prevention and Sediment Control==

Smithk: Per MT, updated contact info

2021-12-01T17:13:20Z

Per MT, updated contact info

Show changes

Smithk: /* 173.5.2 Project Name: Spring Creek Bridge Repair */

2019-03-06T16:40:34Z

173.5.2 Project Name: Spring Creek Bridge Repair

← Older revision		Revision as of 11:40, 6 March 2019
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	'''CWA Sections 401 and 404.''' In general, streambank stabilization activities will require authorization under Section 404 of the Clean Water Act unless all work is done above the Ordinary Highwater Mark (OHWM).		'''CWA Sections 401 and 404.''' In general, streambank stabilization activities will require authorization under Section 404 of the Clean Water Act unless all work is done above the Ordinary Highwater Mark (OHWM).

	===173.5.2 Project Name:~~'''~~ Spring Creek Bridge Repair===		===173.5.2 Project Name: Spring Creek Bridge Repair===

	'''Location:''' Bridge No. P0418 Route D, Sullivan County		'''Location:''' Bridge No. P0418 Route D, Sullivan County
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	\|[[image:173.5.2.3.jpg\|center\|375px\|thumb\|<center>'''Gabion basket being transported to affected area.'''</center>]]\|\|[[image:173.5.2.4.jpg\|center\|375px\|thumb\|<center>''' Gabion baskets being set alongside bridge pier.'''</center>]]		\|[[image:173.5.2.3.jpg\|center\|375px\|thumb\|<center>'''Gabion basket being transported to affected area.'''</center>]]\|\|[[image:173.5.2.4.jpg\|center\|375px\|thumb\|<center>''' Gabion baskets being set alongside bridge pier.'''</center>]]
	\|}		\|}


	===173.5.3 Project Name: Little Creek Streambank Stabilization===		===173.5.3 Project Name: Little Creek Streambank Stabilization===

EPGsysop: Per MT, Per MT, clarification reflecting actual field activities was added at the request of FEMA

2017-07-28T15:42:17Z

Per MT, Per MT, clarification reflecting actual field activities was added at the request of FEMA

← Older revision		Revision as of 10:42, 28 July 2017
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	MoDOT takes great pride in being a good steward of the environment. As part of Maintenance operations, we must strive to protect, conserve and enhance the environment while maintaining and operating a complex transportation infrastructure.		MoDOT takes great pride in being a good steward of the environment. As part of Maintenance operations, we must strive to protect, conserve and enhance the environment while maintaining and operating a complex transportation infrastructure.

	EPG 173 offers examples on how to maintain roadway slopes and ditches to prevent erosion and slides and how to repair slopes and ditches when they are impacted by slope erosion and slides. [[#173.1 Regulation and Permits\|EPG 173.1 Regulations and Permits]] outlines the rules and regulations that set the boundaries for MoDOT’s actions. The following articles outline specific examples on prevention and repair with step-by-step pictorial overviews.		EPG 173 offers examples on how to maintain roadway slopes and ditches to prevent erosion and slides and how to repair slopes and ditches when they are impacted by slope erosion and slides. [[#173.1 Regulation and Permits\|EPG 173.1 Regulations and Permits]] outlines the rules and regulations that set the boundaries for MoDOT’s actions. Typically, eroded ditches, slopes or stream banks have been repaired with rip-rap material to mitigate future erosion. The following articles outline specific examples on prevention and repair with step-by-step pictorial overviews.

	==173.1 Regulation and Permits==		==173.1 Regulation and Permits==

Smithk: Per MT, updated divisional link to the SharePoint link

2015-06-04T20:04:14Z

Per MT, updated divisional link to the SharePoint link

Show changes

Smithk: /* 173.8.2 Regulatory Conditions for Working in Streams/Wetlands */ Per MT, updated link

2015-06-04T12:10:31Z

173.8.2 Regulatory Conditions for Working in Streams/Wetlands: Per MT, updated link

← Older revision		Revision as of 07:10, 4 June 2015
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	'''Seasonal Restrictions for Activities Proposed in Spawning Areas (Applicable To All NWPs).''' In addition to the		'''Seasonal Restrictions for Activities Proposed in Spawning Areas (Applicable To All NWPs).''' In addition to the
	requirements of NWP general condition 3, for any regulated activity, the following specific seasonal restrictions apply. Between the closed dates listed in the Missouri Combined Stream Spawning List, the permittee must not excavate		requirements of NWP general condition 3, for any regulated activity, the following specific seasonal restrictions apply. Between the closed dates listed in the Missouri Combined Stream Spawning List, the permittee must not excavate
	from or discharge into the listed waters. [http://www.~~swl~~.usace.army.mil/Portals/50/docs/regulatory/~~MO Regional Conditions~~.pdf ~~The~~ list of waters with seasonal restrictions is available on request from the Corps].		from or discharge into the listed waters. The [http://www.nwk.usace.army.mil/Portals/29/docs/regulatory/nationwidepermits/2012/SpawningList.pdf list of waters with seasonal restrictions] is available or on request from the Corps.

	'''Zebra Mussel (Applicable To All NWPs).''' The permittee must notify the COE District Engineer in accordance with the “Notification” general condition of the NWPs (general condition 27) for any regulated activity where the applicant is proposing to remove equipment from a known zebra mussel water to use in a different water not known to support zebra mussels. [http://nas.er.usgs.gov/queries/zmbyst.asp. Known zebra mussel waters within Missouri is available on request from the Corps]. The notification must include measures to limit the likelihood of spreading the zebra mussel to other waters.		'''Zebra Mussel (Applicable To All NWPs).''' The permittee must notify the COE District Engineer in accordance with the “Notification” general condition of the NWPs (general condition 27) for any regulated activity where the applicant is proposing to remove equipment from a known zebra mussel water to use in a different water not known to support zebra mussels. [http://nas.er.usgs.gov/queries/zmbyst.asp. Known zebra mussel waters within Missouri is available on request from the Corps]. The notification must include measures to limit the likelihood of spreading the zebra mussel to other waters.