771.2 Bridge Cleaning and Flushing - Revision history

Smithk: /* Procedures */ Per Env'l, guidance updated 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.

2021-12-13T13:48:26Z

Procedures: Per Env'l, guidance updated 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 08:48, 13 December 2021
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	==Procedures==		==Procedures==

	1. Set up proper traffic control.		1. Set up proper traffic control.

	2. ~~Remove all dirt and debris and ensure that all curb outlets and pipe drains are clean. Dispose~~ of dirt and debris ~~properly~~ to prevent from entering ~~Waters~~ of the ~~State~~.		2. Removal of dirt and debris <u>shall be completed using dry methods (scraping, vacuuming, or sweeping) to prevent debris, sediments, and other substances from entering waters of the state</u>. Dispose of dirt and debris properly. See [[127.25 Maintenance Environmental Policies#127.25.1.4 Street Sweepings\|EPG 127.25.1.4 Street Sweepings]].

	~~3. Heavy buildup~~ of dirt and debris ~~may require removal prior to flushing. Sweeping or brooming is beneficial to supplement flushing~~. See [[127.25 Maintenance Environmental Policies#127.25.1.4 Street Sweepings\|EPG 127.25.1.4 Street Sweepings]].

	4. Adequate water supply and pressure is needed for effective flushing.		3. Adequate water supply and pressure is needed for effective flushing.

	5. Spring and fall flushing should include all bridge items, drain system, drain basins, and under expansion devices.		4. Spring and fall flushing should include all bridge items, drain system, drain basins, and under expansion devices.

	==Safety==		==Safety==

Smithk at 14:58, 22 November 2016

2016-11-22T14:58:27Z

← Older revision		Revision as of 09:58, 22 November 2016
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	\|}		\|}

	[[Category:771 Bridge ~~Preventative~~ Maintenance Guidelines\|771.02]]		[[Category:771 Bridge Preventive Maintenance Guidelines\|771.02]]

Smithk: /* Guidance on Aquatic Invasive Species Control BMPs */ Per Env'l, underlined some text

2016-01-06T16:20:07Z

Guidance on Aquatic Invasive Species Control BMPs: Per Env'l, underlined some text

← Older revision		Revision as of 11:20, 6 January 2016
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	Aquatic invasives such as zebra mussels and some algae species have infested several bodies of water in the United States and can be transported by vessels (barges, boats, tugs, tankers, etc.) and equipment that have been used in areas that contain these invasive species. If equipment is not properly inspected and treated to prevent the spread of invasives, these species can be introduced into areas not currently known to have a population. These invasive species are detrimental to existing ecosystems and can outcompete native species. To assist in preventing the introduction and spread of aquatic invasive species through MoDOT projects in Missouri streams and lakes, the following precautions shall be followed.		Aquatic invasives such as zebra mussels and some algae species have infested several bodies of water in the United States and can be transported by vessels (barges, boats, tugs, tankers, etc.) and equipment that have been used in areas that contain these invasive species. If equipment is not properly inspected and treated to prevent the spread of invasives, these species can be introduced into areas not currently known to have a population. These invasive species are detrimental to existing ecosystems and can outcompete native species. To assist in preventing the introduction and spread of aquatic invasive species through MoDOT projects in Missouri streams and lakes, the following precautions shall be followed.

	Contractors and MoDOT maintenance shall not take water for bridge deck flushing from Waters of the State (i.e., streams or lakes), unless they have implemented appropriate methods to prevent the possible spread of invasive aquatic species. Water sources from municipal water treatment plants or wells may be used without following these measures provided the water hauling equipment has not previously contained waters from streams or lakes. If the water hauling equipment has previously contained waters from other streams or lakes, the following measures must be implemented prior to use.		Contractors and MoDOT maintenance shall not take water for bridge deck flushing from Waters of the State (i.e., streams or lakes), unless they have implemented appropriate methods to prevent the possible spread of invasive aquatic species. <u>Water sources from municipal water treatment plants or wells may be used without following these measures provided the water hauling equipment has not previously contained waters from streams or lakes.</u> If the water hauling equipment has previously contained waters from other streams or lakes, the following measures must be implemented prior to use.

	Prior to transporting temporary barges, tugs, boats, or other equipment used for work in Missouri streams or lakes, or re-using water hauling equipment following any use with water from Missouri streams or lakes, all equipment shall be washed and rinsed thoroughly with hard spray (power wash) or HOT (104° F) water, e.g. at a truck wash facility.		Prior to transporting temporary barges, tugs, boats, or other equipment used for work in Missouri streams or lakes, or re-using water hauling equipment following any use with water from Missouri streams or lakes, all equipment shall be washed and rinsed thoroughly with hard spray (power wash) or HOT (104° F) water, e.g. at a truck wash facility.
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	Prior to use of the aforementioned types of vessels, contractors shall provide the MoDOT inspector written documentation of its geographic origin (including the water body it was last used in), as well as defining the specified treatment method used to adequately ensure protection against invasive species.		Prior to use of the aforementioned types of vessels, contractors shall provide the MoDOT inspector written documentation of its geographic origin (including the water body it was last used in), as well as defining the specified treatment method used to adequately ensure protection against invasive species.

	Vessels and equipment shall be inspected upon removal from any body of water, cleaning hulls, anchors, moorings, trailers, etc., of all mud, vegetation, and any noticeable attached zebra mussels. This practice will assist in preventing the spread of invasive aquatic species between bodies of water. If zebra mussels are found upon inspection, immediate notification must be made to the MoDOT inspector (for contract jobs) and MoDOT Environmental (573-526-4778). A MoDOT Environmental Specialist will contact the Missouri Department of Conservation Aquatic Habitat Specialist (417-326-5189, ext. 1844).		Vessels and equipment shall be inspected upon removal from any body of water, cleaning hulls, anchors, moorings, trailers, etc., of all mud, vegetation, and any noticeable attached zebra mussels. This practice will assist in preventing the spread of invasive aquatic species between bodies of water. If zebra mussels are found upon inspection, immediate notification must be made to the MoDOT inspector (for contract jobs) and MoDOT Environmental (573-526-4778). A MoDOT Environmental Specialist will contact the Missouri Department of Conservation Aquatic Habitat Specialist (417-326-5189, ext. 1844).

	==Instructions==		==Instructions==

Smithk: Per Env'l, revised to comply with MDNR permit. Also, added "Guidance on Aquatic Invasive Species Control BMPs".

2016-01-05T19:06:25Z

Per Env'l, revised to comply with MDNR permit. Also, added "Guidance on Aquatic Invasive Species Control BMPs".

@@ Line 10: / Line 10: @@
 . Set up proper traffic control.
-. Remove all dirt and debris and ensure that all curb outlets and pipe drains are clean.
+. Remove all dirt and debris and ensure that all curb outlets and pipe drains are clean. Dispose of dirt and debris properly to prevent from entering Waters of the State.
-. Heavy buildup of dirt and debris may require removal prior to flushing. Sweeping or brooming is beneficial to supplement flushing.
+. Heavy buildup of dirt and debris may require removal prior to flushing. Sweeping or brooming is beneficial to supplement flushing.  See [[127.25 Maintenance Environmental Policies#127.25.1.4 Street Sweepings|EPG 127.25.1.4 Street Sweepings]].
 . Adequate water supply and pressure is needed for effective flushing.
@@ Line 19: / Line 19: @@
 ==Safety==
-Run off from flushing needs to be controlled to prevent property damage.
+Run off from flushing needs to be controlled to prevent property and environmental damage.
 ==Instructions==

Smithk: Per Maintc, updated activity code number

2014-10-16T15:41:50Z

Per Maintc, updated activity code number

← Older revision		Revision as of 10:41, 16 October 2014
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	{\|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#f5f5f5" width="160px" align="right"		{\|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#f5f5f5" width="160px" align="right"
	\|-		\|-
	\|'''Code:''' ~~R327~~		\|'''Code:''' R329
	\|}		\|}

Smithk: Per Maint., clarified the Bridge Cleaning and Flushing code as only R327, not both R327 or R913.

2014-04-24T12:03:32Z

Per Maint., clarified the Bridge Cleaning and Flushing code as only R327, not both R327 or R913.

← Older revision		Revision as of 07:03, 24 April 2014
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	{\|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#f5f5f5" width="160px" align="right"		{\|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#f5f5f5" width="160px" align="right"
	\|-		\|-
	\|'''Code:''' R327 ~~or R913~~		\|'''Code:''' R327
	\|}		\|}

Smithk: "ensure" correction

2010-07-09T12:53:56Z

"ensure" correction

← Older revision		Revision as of 07:53, 9 July 2010
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	1. Set up proper traffic control.		1. Set up proper traffic control.

	2. Remove all dirt and debris and ~~insure~~ that all curb outlets and pipe drains are clean.		2. Remove all dirt and debris and ensure that all curb outlets and pipe drains are clean.

	3. Heavy buildup of dirt and debris may require removal prior to flushing. Sweeping or brooming is beneficial to supplement flushing.		3. Heavy buildup of dirt and debris may require removal prior to flushing. Sweeping or brooming is beneficial to supplement flushing.
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	\|[[Image:771.2 Cleaning and Flushing1.jpg\|400px]] \|\| [[Image:771.2 Cleaning and Flushing2.jpg\|400px]]		\|[[Image:771.2 Cleaning and Flushing1.jpg\|400px]] \|\| [[Image:771.2 Cleaning and Flushing2.jpg\|400px]]
	\|-		\|-
	\|colspan="2"\|'''Set up proper traffic control. Remove all dirt and debris and ~~insure~~ that all curb outlets and pipe drains are clean. Heavy buildup of dirt and debris may require removal prior to flushing. Sweeping or brooming is beneficial to supplement flushing.'''		\|colspan="2"\|'''Set up proper traffic control. Remove all dirt and debris and ensure that all curb outlets and pipe drains are clean. Heavy buildup of dirt and debris may require removal prior to flushing. Sweeping or brooming is beneficial to supplement flushing.'''
	\|-		\|-
	\|[[Image:771.2 Cleaning and Flushing3.jpg\|400px]] \|\| [[Image:771.2 Cleaning and Flushing4.jpg\|400px]]		\|[[Image:771.2 Cleaning and Flushing3.jpg\|400px]] \|\| [[Image:771.2 Cleaning and Flushing4.jpg\|400px]]

EPG-Admin: Updated activity code.

2008-12-31T19:30:09Z

Updated activity code.

← Older revision		Revision as of 14:30, 31 December 2008
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	{\|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#f5f5f5" width="160px" align="right"		{\|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#f5f5f5" width="160px" align="right"
	\|-		\|-
	\|'''Code:''' ~~R31B~~ or R913		\|'''Code:''' R327 or R913
	\|}		\|}

EPG-Admin: /* Instructions */

2007-12-26T15:01:10Z

Instructions

← Older revision		Revision as of 10:01, 26 December 2007
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	\|[[Image:771.2 Cleaning and Flushing3.jpg\|400px]] \|\| [[Image:771.2 Cleaning and Flushing4.jpg\|400px]]		\|[[Image:771.2 Cleaning and Flushing3.jpg\|400px]] \|\| [[Image:771.2 Cleaning and Flushing4.jpg\|400px]]
	\|-		\|-
	\|colspan="2"\|'''Adequate water supply and pressure is needed for effective flushing.'''		\|align="center" colspan="2"\|'''Adequate water supply and pressure is needed for effective flushing.'''
	\|-		\|-
	\|[[Image:771.2 Cleaning and Flushing5.jpg\|400px]] \|\|		\|[[Image:771.2 Cleaning and Flushing5.jpg\|400px]] \|\|

EPG-Admin: New page: {|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#f5f5f5" width="160px" align="right" |- |'''Code:''' R31B or R913 |} ...

2007-12-21T19:01:34Z

New page: {|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#f5f5f5" width="160px" align="right" |- |'''Code:''' R31B or R913 |} ...

New page

{|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#f5f5f5" width="160px" align="right"
|-
|'''Code:''' R31B or R913
|}

Bridge cleaning and flushing is done to remove dirt and debris to allow proper drainage and drying of the deck. The dirt and debris holds moisture and chlorides that cause deterioration.
Deck flushing should be done throughout the winter months when needed and temperatures safely permit. Thorough cleaning of entire bridge should be accomplished in the spring following snow season and again in the fall prior to snow season. This cleaning should include deck, piers, abutments, and lower chords of truss bridges.

==Procedures==
1. Set up proper traffic control.

2. Remove all dirt and debris and insure that all curb outlets and pipe drains are clean.

3. Heavy buildup of dirt and debris may require removal prior to flushing. Sweeping or brooming is beneficial to supplement flushing.

4. Adequate water supply and pressure is needed for effective flushing.

5. Spring and fall flushing should include all bridge items, drain system, drain basins, and under expansion devices.

==Safety==
Run off from flushing needs to be controlled to prevent property damage.

==Instructions==
{|
|[[Image:771.2 Cleaning and Flushing1.jpg|400px]] || [[Image:771.2 Cleaning and Flushing2.jpg|400px]]
|-
|colspan="2"|'''Set up proper traffic control. Remove all dirt and debris and insure that all curb outlets and pipe drains are clean. Heavy buildup of dirt and debris may require removal prior to flushing. Sweeping or brooming is beneficial to supplement flushing.'''
|-
|[[Image:771.2 Cleaning and Flushing3.jpg|400px]] || [[Image:771.2 Cleaning and Flushing4.jpg|400px]]
|-
|colspan="2"|'''Adequate water supply and pressure is needed for effective flushing.'''
|-
|[[Image:771.2 Cleaning and Flushing5.jpg|400px]] ||
|-
|'''Spring and fall flushing should include all bridge items, drains system, drain basins, and under expansion devices.''' ||
|}

[[Category:771 Bridge Preventative Maintenance Guidelines|771.02]]