Category:240 Maintenance and Emergency Crossovers - Revision history

Hoskir: /* 240.4 Guard Cable Termination at Emergency Crossovers */ removed last two sentences per RR3845

2024-03-01T17:25:48Z

240.4 Guard Cable Termination at Emergency Crossovers: removed last two sentences per RR3845

← Older revision		Revision as of 12:25, 1 March 2024
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	The design for guard cable termination as well as the grading for the crossover should be in accordance with [https://www.modot.org/media/16863 Standard Plan 606.41]. The width of the crossover should be 20 feet. If feasible, the crossover should be located immediately downstream of an existing median drop inlet in order to eliminate a pipe culvert.		The design for guard cable termination as well as the grading for the crossover should be in accordance with [https://www.modot.org/media/16863 Standard Plan 606.41]. The width of the crossover should be 20 feet. If feasible, the crossover should be located immediately downstream of an existing median drop inlet in order to eliminate a pipe culvert.

	Existing crossover locations should be evaluated for conformance with the guidelines in [[#240.1 Location\|EPG 240.1]]~~. Opportunities to eliminate crossovers or install additional crossovers should be considered for inclusion as a part of the [[606.2 Guard Cable\|guard cable]] installation project.~~		Existing crossover locations should be evaluated for conformance with the guidelines in [[#240.1 Location\|EPG 240.1]].

	Changes to the location of crossovers (addition or elimination) should be coordinated with [[616.16 Law Enforcement Services\|local law enforcement]] and emergency service providers in the affected area.

Smithk: Per MT, updated State Maintenance Director title

2020-12-16T15:09:08Z

Per MT, updated State Maintenance Director title

← Older revision		Revision as of 10:09, 16 December 2020
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	Public [[:Category:233 At - Grade Intersections\|at-grade intersections]] or crossovers are not constructed on fully controlled access routes. [[233.2 At-Grade Intersections with Stop and Yield Control#233.2.1.2 Median Openings\|Median openings]] are considered at intervals outlined in [[940.7 Median Opening Spacing\|EPG 940.7 Median Opening Spacing]] on other routes.		Public [[:Category:233 At - Grade Intersections\|at-grade intersections]] or crossovers are not constructed on fully controlled access routes. [[233.2 At-Grade Intersections with Stop and Yield Control#233.2.1.2 Median Openings\|Median openings]] are considered at intervals outlined in [[940.7 Median Opening Spacing\|EPG 940.7 Median Opening Spacing]] on other routes.

	The State Maintenance ~~Engineer~~ must approve the location of maintenance and emergency crossovers on all state maintained routes. An additional approval must be obtained from the Federal Highway Administration for maintenance and emergency crossovers on interstate highways.		The State Maintenance Director must approve the location of maintenance and emergency crossovers on all state maintained routes. An additional approval must be obtained from the Federal Highway Administration for maintenance and emergency crossovers on interstate highways.

	==240.1 Location==		==240.1 Location==
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	The following information is required when submitting a request to construct a new or eliminate an existing maintenance and emergency crossover on an existing route:		The following information is required when submitting a request to construct a new or eliminate an existing maintenance and emergency crossover on an existing route:

	1. The request can submitted in the form of a letter to the State Maintenance ~~Engineer~~ stating the route, county and exact station number of the proposed crossover change. The request should contain a general statement regarding the need for the crossover change. Requests for new crossovers shall address the sight distance in both directions of the proposed crossover and the effect on the median drainage. All change requests should include a statement to indicate that the crossover changes are acceptable to the local law enforcement and emergency service providers. A brief summary of the efforts to coordinate with these groups should also be included.		1. The request can submitted in the form of a letter to the State Maintenance Director stating the route, county and exact station number of the proposed crossover change. The request should contain a general statement regarding the need for the crossover change. Requests for new crossovers shall address the sight distance in both directions of the proposed crossover and the effect on the median drainage. All change requests should include a statement to indicate that the crossover changes are acceptable to the local law enforcement and emergency service providers. A brief summary of the efforts to coordinate with these groups should also be included.

	2. A general [http://www.modot.org/newsandinfo/CountyMaps.htm county highway map] showing the location of the proposed crossover and all existing crossovers and interchanges within 5 miles on either side of the proposed crossover.		2. A general [http://www.modot.org/newsandinfo/CountyMaps.htm county highway map] showing the location of the proposed crossover and all existing crossovers and interchanges within 5 miles on either side of the proposed crossover.
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	3. A copy of the [[237.4 Plan-Profile Sheets\|plan-profile sheet]] for the section of roadway where the proposed crossover will be located.		3. A copy of the [[237.4 Plan-Profile Sheets\|plan-profile sheet]] for the section of roadway where the proposed crossover will be located.

	4. For maintenance and emergency crossovers on interstate highways, the State Maintenance ~~Engineer~~ shall consult with FHWA and obtain their approval of the requested changes.		4. For maintenance and emergency crossovers on interstate highways, the State Maintenance Director shall consult with FHWA and obtain their approval of the requested changes.
	[[image:240.3.jpg\|right\|300px]]		[[image:240.3.jpg\|right\|300px]]
	==240.3 Maintenance and Emergency Crossover Construction Requirements==		==240.3 Maintenance and Emergency Crossover Construction Requirements==

Smithk at 18:03, 28 September 2018

2018-09-28T18:03:19Z

← Older revision		Revision as of 13:03, 28 September 2018
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	An unauthorized U-turn into high-speed traffic, on the part of the general public, represents a hazardous situation. In order to discourage non-emergency use of the crossover by motorists at large, the crossovers should be kept narrow with small transition radii. Neither should they have hard surfaces or deceleration tapers.		An unauthorized U-turn into high-speed traffic, on the part of the general public, represents a hazardous situation. In order to discourage non-emergency use of the crossover by motorists at large, the crossovers should be kept narrow with small transition radii. Neither should they have hard surfaces or deceleration tapers.

	The design for emergency crossovers should be in accordance with [~~http~~://www.modot.~~mo.gov/business/standards_and_specs~~/~~documents~~/~~60641.pdf~~ Standard Plan 606.41]. The surface should be 6 in. aggregate of predominately larger material to provide an adequate, all-weather surface that still appears unattractive to the non-emergency motorist.		The design for emergency crossovers should be in accordance with [https://www.modot.org/media/16863 Standard Plan 606.41]. The surface should be 6 in. aggregate of predominately larger material to provide an adequate, all-weather surface that still appears unattractive to the non-emergency motorist.

	1. Crossovers shall be constructed with an aggregate surface 20 ft. wide and with turning radii of 10 feet.		1. Crossovers shall be constructed with an aggregate surface 20 ft. wide and with turning radii of 10 feet.
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	3. Sideslopes should be constructed 1V:10H or flatter to minimize their effect as obstacles to uncontrolled vehicles that may enter the median.		3. Sideslopes should be constructed 1V:10H or flatter to minimize their effect as obstacles to uncontrolled vehicles that may enter the median.

	4. If possible, the crossover should be located where a [[640.2 Median Drainage\|pipe]] is not necessary. All drainage structures constructed in the median must be built to current safety standards. Refer to [~~http~~://www.modot.~~mo.gov/business/standards_and_specs~~/~~documents~~/~~60641.pdf~~ Standard Plan 606.41] for drainage piping plans and pipe end treatment options.		4. If possible, the crossover should be located where a [[640.2 Median Drainage\|pipe]] is not necessary. All drainage structures constructed in the median must be built to current safety standards. Refer to [https://www.modot.org/media/16863 Standard Plan 606.41] for drainage piping plans and pipe end treatment options.

	5. The surface shall not be upgraded to a higher type surface.		5. The surface shall not be upgraded to a higher type surface.
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	==240.4 Guard Cable Termination at Emergency Crossovers==		==240.4 Guard Cable Termination at Emergency Crossovers==

	The design for guard cable termination as well as the grading for the crossover should be in accordance with [~~http~~://www.modot.~~mo.gov/business/standards_and_specs~~/~~documents~~/~~60641.pdf~~ Standard Plan 606.41]. The width of the crossover should be 20 feet. If feasible, the crossover should be located immediately downstream of an existing median drop inlet in order to eliminate a pipe culvert.		The design for guard cable termination as well as the grading for the crossover should be in accordance with [https://www.modot.org/media/16863 Standard Plan 606.41]. The width of the crossover should be 20 feet. If feasible, the crossover should be located immediately downstream of an existing median drop inlet in order to eliminate a pipe culvert.

	Existing crossover locations should be evaluated for conformance with the guidelines in [[#240.1 Location\|EPG 240.1]]. Opportunities to eliminate crossovers or install additional crossovers should be considered for inclusion as a part of the [[606.2 Guard Cable\|guard cable]] installation project.		Existing crossover locations should be evaluated for conformance with the guidelines in [[#240.1 Location\|EPG 240.1]]. Opportunities to eliminate crossovers or install additional crossovers should be considered for inclusion as a part of the [[606.2 Guard Cable\|guard cable]] installation project.

	Changes to the location of crossovers (addition or elimination) should be coordinated with [[616.16 Law Enforcement Services\|local law enforcement]] and emergency service providers in the affected area.		Changes to the location of crossovers (addition or elimination) should be coordinated with [[616.16 Law Enforcement Services\|local law enforcement]] and emergency service providers in the affected area.

EPGsysop: Per TS, revised the standard for Emergency Vehicle Crossovers to 20' wide with 10' radius to allow fire/EMS responders to utilized the emergency crossovers.

2017-08-08T18:13:50Z

Per TS, revised the standard for Emergency Vehicle Crossovers to 20' wide with 10' radius to allow fire/EMS responders to utilized the emergency crossovers.

← Older revision		Revision as of 13:13, 8 August 2017
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	An unauthorized U-turn into high-speed traffic, on the part of the general public, represents a hazardous situation. In order to discourage non-emergency use of the crossover by motorists at large, the crossovers should be kept narrow with small transition radii. Neither should they have hard surfaces or deceleration tapers.		An unauthorized U-turn into high-speed traffic, on the part of the general public, represents a hazardous situation. In order to discourage non-emergency use of the crossover by motorists at large, the crossovers should be kept narrow with small transition radii. Neither should they have hard surfaces or deceleration tapers.

	A 6 in. aggregate ~~surface~~ of predominately larger material ~~should~~ provide an adequate, all-weather surface that still appears unattractive to the non-emergency motorist.		The design for emergency crossovers should be in accordance with [http://www.modot.mo.gov/business/standards_and_specs/documents/60641.pdf Standard Plan 606.41]. The surface should be 6 in. aggregate of predominately larger material to provide an adequate, all-weather surface that still appears unattractive to the non-emergency motorist.

	1. Crossovers shall be constructed with an aggregate surface ~~no wider than~~ 20 ft. and with turning radii of ~~not more than~~ 10 ft.		1. Crossovers shall be constructed with an aggregate surface 20 ft. wide and with turning radii of 10 feet.

	2. To be inconspicuous to mainline traffic, the surface should be depressed below shoulder level.		2. To be inconspicuous to mainline traffic, the surface should be depressed below shoulder level.
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	==240.4 Guard Cable Termination at Emergency Crossovers==		==240.4 Guard Cable Termination at Emergency Crossovers==

	The design for guard cable termination as well as the grading for the crossover should be in accordance with [http://www.modot.mo.gov/business/standards_and_specs/documents/60641.pdf Standard Plan 606.41~~, Sheet 6 of 6~~]. The width of the crossover should ~~not exceed~~ 20 ft. If feasible, the crossover should be located immediately downstream of an existing median drop inlet in order to eliminate a pipe culvert.		The design for guard cable termination as well as the grading for the crossover should be in accordance with [http://www.modot.mo.gov/business/standards_and_specs/documents/60641.pdf Standard Plan 606.41]. The width of the crossover should be 20 feet. If feasible, the crossover should be located immediately downstream of an existing median drop inlet in order to eliminate a pipe culvert.

	Existing crossover locations should be evaluated for conformance with the guidelines in [[#240.1 Location\|EPG 240.1]]. Opportunities to eliminate crossovers or install additional crossovers should be considered for inclusion as a part of the [[606.2 Guard Cable\|guard cable]] installation project.		Existing crossover locations should be evaluated for conformance with the guidelines in [[#240.1 Location\|EPG 240.1]]. Opportunities to eliminate crossovers or install additional crossovers should be considered for inclusion as a part of the [[606.2 Guard Cable\|guard cable]] installation project.

	Changes to the location of crossovers (addition or elimination) should be coordinated with [[616.16 Law Enforcement Services\|local law enforcement]] and emergency service providers in the affected area.		Changes to the location of crossovers (addition or elimination) should be coordinated with [[616.16 Law Enforcement Services\|local law enforcement]] and emergency service providers in the affected area.

EPGsysop at 19:29, 26 May 2017

2017-05-26T19:29:36Z

← Older revision		Revision as of 14:29, 26 May 2017
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	:* facilitate maintenance activities such as snow removal and		:* facilitate maintenance activities such as snow removal and
	:* provide ample access for law enforcement or emergency medical services responding to roadway incidents.		:* provide ample access for law enforcement or emergency medical services responding to roadway incidents.
	~~{\|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#ffddcc" width="210px" align="right"~~
	\|-
	~~\|'''Rural Expressway, Median Crossovers'''~~
	\|-
	~~\|[http://library.modot.mo.gov/RDT/reports/Ri98009/RDT01011.pdf Report 2001]~~
	\|-
	~~\|[http://library.modot.mo.gov/RDT/reports/RI98009B/RDT04013.pdf Report 2004]~~
	\|-
	~~\|[http://library.modot.mo.gov/RDT/reports/RI98009b/Brf04013.pdf Summary 2004]~~
	\|-
	~~\|'''See also:''' [http://www.modot.gov/services/OR/byDate.htm Innovation Library]~~
	\|}
	Maintenance crossovers may be needed at one or both ends of [[:Category:234 Interchanges\|interchange facilities]], depending on the type of interchange.		Maintenance crossovers may be needed at one or both ends of [[:Category:234 Interchanges\|interchange facilities]], depending on the type of interchange.

Smithk: Per Traffic, updated link

2013-11-25T15:58:37Z

Per Traffic, updated link

← Older revision		Revision as of 10:58, 25 November 2013
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	1. Maintenance and emergency crossovers should not be located closer than 1,500 ft. to the end of a speed-change ramp or to any structures such as bridge columns or [[606.1 Guardrail\|guardrail]] located in the [[231.1 Median Width\|median]].		1. Maintenance and emergency crossovers should not be located closer than 1,500 ft. to the end of a speed-change ramp or to any structures such as bridge columns or [[606.1 Guardrail\|guardrail]] located in the [[231.1 Median Width\|median]].

	2. Maintenance and emergency crossovers should be located only where the [[941.19 Sight Distance for Entrances\|Design Entering Sight Distance]] is provided.		2. Maintenance and emergency crossovers should be located only where the [[:Category:941 Permits and Access Requests#941.7 Sight Distance for Entrances\|Design Entering Sight Distance]] is provided.

	3. Maintenance and emergency crossovers should not be located within curves requiring superelevation.		3. Maintenance and emergency crossovers should not be located within curves requiring superelevation.

Smithk: photo added

2013-04-15T14:57:28Z

photo added

← Older revision		Revision as of 09:57, 15 April 2013
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	4. For maintenance and emergency crossovers on interstate highways, the State Maintenance Engineer shall consult with FHWA and obtain their approval of the requested changes.		4. For maintenance and emergency crossovers on interstate highways, the State Maintenance Engineer shall consult with FHWA and obtain their approval of the requested changes.
			[[image:240.3.jpg\|right\|300px]]
	==240.3 Maintenance and Emergency Crossover Construction Requirements==		==240.3 Maintenance and Emergency Crossover Construction Requirements==

Smithk: /* 240.3 Maintenance and Emergency Crossover Construction Requirements */

2012-01-19T17:02:29Z

240.3 Maintenance and Emergency Crossover Construction Requirements

← Older revision		Revision as of 12:02, 19 January 2012
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	6. Crossovers are to be in good repair at all times.		6. Crossovers are to be in good repair at all times.

	7. Signing for a maintenance and emergency crossover shall be in accordance with [[903.5 Regulatory Signs# 903.5.39 AUTHORIZED AND EMERGENCY VEHICLES ONLY (R5-29)\|EPG 903.5.39 AUTHORIZED AND EMERGENCY VEHICLES ONLY]].		7. Signing for a maintenance and emergency crossover shall be in accordance with [[903.5 Regulatory Signs#903.5.39 AUTHORIZED AND EMERGENCY VEHICLES ONLY (R5-29)\|EPG 903.5.39 AUTHORIZED AND EMERGENCY VEHICLES ONLY]].

	==240.4 Guard Cable Termination at Emergency Crossovers==		==240.4 Guard Cable Termination at Emergency Crossovers==

Smithk: /* 240.3 Maintenance and Emergency Crossover Construction Requirements */ updated link

2012-01-19T17:01:51Z

240.3 Maintenance and Emergency Crossover Construction Requirements: updated link

← Older revision		Revision as of 12:01, 19 January 2012
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	6. Crossovers are to be in good repair at all times.		6. Crossovers are to be in good repair at all times.

	7. Signing for a maintenance and emergency crossover shall be in accordance with [[903.5 Regulatory Signs# 903.5.53 AUTHORIZED AND EMERGENCY VEHICLES ONLY (R5-19)\|EPG 903.5.53 AUTHORIZED AND EMERGENCY VEHICLES ONLY]].		7. Signing for a maintenance and emergency crossover shall be in accordance with [[903.5 Regulatory Signs# 903.5.39 AUTHORIZED AND EMERGENCY VEHICLES ONLY (R5-29)\|EPG 903.5.39 AUTHORIZED AND EMERGENCY VEHICLES ONLY]].

	==240.4 Guard Cable Termination at Emergency Crossovers==		==240.4 Guard Cable Termination at Emergency Crossovers==

Smithk: /* 240.1 Location */ upated link

2011-07-05T13:31:46Z

240.1 Location: upated link

← Older revision		Revision as of 08:31, 5 July 2011
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	1. Maintenance and emergency crossovers should not be located closer than 1,500 ft. to the end of a speed-change ramp or to any structures such as bridge columns or [[606.1 Guardrail\|guardrail]] located in the [[231.1 Median Width\|median]].		1. Maintenance and emergency crossovers should not be located closer than 1,500 ft. to the end of a speed-change ramp or to any structures such as bridge columns or [[606.1 Guardrail\|guardrail]] located in the [[231.1 Median Width\|median]].

	2. Maintenance and emergency crossovers should be located only where the [[941.19 Sight Distance for ~~Driveways~~\|Design Entering Sight Distance]] is provided.		2. Maintenance and emergency crossovers should be located only where the [[941.19 Sight Distance for Entrances\|Design Entering Sight Distance]] is provided.

	3. Maintenance and emergency crossovers should not be located within curves requiring superelevation.		3. Maintenance and emergency crossovers should not be located within curves requiring superelevation.