# Department of Transportation, Frankfort, KY — Pipeline Safety Interpretation

- **operation:** document
- **citation:** PI-77-013
- **title:** Department of Transportation, Frankfort, KY — Pipeline Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 1977-05-01
- **effective on:** Not available
- **summary:** PI-77-013 response to Department of Transportation, Frankfort, KY concerning 192.111.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-77-013.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-77-013.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-77-013
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1977/PI77013.pdf
**body:**

<<<PAGE 1>>>

May 1, 1977
Mr. N. W. Coomes
Assistant Director
Utilities Section
Division of Design
Department of Transportation
Frankfort, Kentucky 40601
Dear Mr. Coomes:
This is response to your letter of March 25, 1977, in which you describe a proposal to enlarge a
highway right-of-way which is located over an existing gas pipeline. Your specific question is
whether the Federal gas pipeline safety standards would require upgrading or encasing those
portions of the existing pipeline which lie within the limits of the proposed new right-of-way.
Section 192.111 of the Federal standards sets forth design requirements applicable to upgrading
or encasing a new pipeline which is constructed across a highway right-of-way. However, in
accordance with Section 192.13, these requirements are not intended to apply conversely to an
existing pipeline when a new right-of-way is established over the pipeline unless the pipeline is
replaced, relocated, or otherwise changed in conjunction with establishment of the new right-of-
way. Since your letter indicates that the pipeline in question would not be disturbed as a result of
the new right-of-way, it appears that the operator of the pipeline, Midwestern Gas Transmission
Co., would not be required to take any action under Section 192.111.
In addition to Section 192.111, Sections 192.613 and 192.703(b) may also apply to the situation
of establishing a new highway right-of-way over an existing pipeline. These sections require that
when the operator of a pipeline knows that an unsafe condition exists involving the pipeline, the
operator must take appropriate remedial action. This action might include encasing or upgrading
the pipeline or any other appropriate action. In the absence of information about the intended use
or construction involving the new right-of-way, we do not have an opinion whether the right-of-
way may result in an unsafe condition for the pipeline.
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<<<PAGE 2>>>

If you need additional information on this subject, we suggest that you contact the Kentucky
Public Service Commission which acts as our agent in enforcing the Federal standards against
operators of interstate gas transmission lines in Kentucky.
I trust this satisfactorily responds to your inquiry.
Sincerely,
Cesar DeLeon
Acting Director
Office of Pipeline
Safety Operations
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<<<PAGE 3>>>

March 25, 1977
Mr. Cesar DeLeon, Acting Director
Material Transportation Bureau
Office of Pipeline Safety
2100 Second Street SW
Washington, D.C. 20590
Dear Mr. DeLeon:
SUBJECT: Minimum Federal Safety
Standards for Gas Pipelines
The Kentucky Department of Transportation and Midwestern Gas Transmission Company have a
difference of opinion regarding the minimum federal safety standards for gas pipelines and both
parties have agreed that I should request a written interpretation of the regulations as they apply
to the situation which gives rise to our disagreement.
The Kentucky Bureau of Highways proposes to improve Ky. 144, a rural two-lane blacktop road,
which is crossed by a 30" gas line belonging to Midwestern Gas. When the pipeline was installed
in 1959, .500 wall thickness pipe was installed in a .375 wall thickness casing pipe. Both the
casing and the .500 wall thickness pipe extended beyond the Department's right of way which
existed in 1959. The Department's proposed highway improvement results in a realignment of the
highway so that it will cross perpendicular to the pipeline where the old highway crossed on a
skew of approximately 30° . The ditch lines on either side of the proposed new road will now
coincide approximately with the location of vent pipes on the existing casing.
The Department has asked the gas company to extend the vent piping from the present
encasement so that the vents will come out of the ground at the new right of way fence line. In
our opinion, nothing else is required of the gas company. Midwestern Gas, however, contends
that the pipeline safety regulations will require extending the encasement to the new right of way
line on either side of the roadway.
As you can see from the enclosed correspondence and drawings, the new roadway will not
adversely affect the existing pipeline in any way. The problem hinges solely on the location of the
right of way line. Midwestern's position is such that extension of the encasement or replacement
of .375 pipe with heavier pipe would be required if the Department were merely acquiring
additional right of way with no new road construction contemplated.
Department personnel have reviewed the pertinent regulations and we do not believe that such a
requirement is either written in the regulations or intended to be implied. We contend that
extending the encasement is an unnecessary expense which would not increase the margin of
safety. In fact, we believe the line is better protected from corrosion if it is left unencased.
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<<<PAGE 4>>>

In summary, we need an authoritative answer to the following question:
Is Midwestern Gas Co. required by Federal Regulation to upgrade or encase that portion
of its .375 inch wall thickness pipe which lies within the limits of the Department's new
right of way, for the reason that it is within the right of way? Or conversely, can
Midwestern just extend the existing vent piping to the new right of way line without being
in violation of the Federal Regulations pertaining to pipelines?
Your assistance in this and providing us with an early reply will be very much appreciated.
Very truly yours,
N.W. Coomes, Assistant Director
Utilities Section
Division of Design
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<<<PAGE 5>>>

February 10, 1977
Mr. C.A. Cassity, General Supt. (was for Ferguson, originally)
Mid-Western Gas Corporation
1613 Continental Illinois Bank Building
P.O. Box 774
Chicago, Illinois 60690
Dear Mr. Ferguson:
SUBJECT: Daviess County SP 30-37
Owensboro-Knottsville Road (Ky.144)
Item No. 2-237.2
Your Company's plans and estimate for extending the casing pipe on Line #2100-1 have been
submitted to this office for review. The center line of the new highway crosses at the same
location as the existing road and the proposed roadway construction does not appear to cause any
conflict or potential interference with your pipeline as it now exists.
Under these circumstances, we see no reason to do anything to this line except extend the vent
pipes from the existing encasement to the new right of way line on either side of the road. We do
not, however, have any objections to your encasement proposal if you feel it is required by
company policy but we would expect your Company to bear the cost of extending the
encasement.
We have had several projects in the past where major pipeline companies have upgraded or
encased segments of pipeline as a matter of policy even though such work was not required by the
Department. The Department has consistently declined to participate in the cost of such work
where it is done solely as a matter of company policy.
Please let us know whether you still desire to provide this encasement extension or if you would
be agreeable to merely extending the vent pipes. In either case, we would like to have an estimate
of the cost involved in just relocating the vent pipes so that we can prepare an agreement for
100% reimbursement of this item or use the estimated cost as the basis for arriving
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<<<PAGE 6>>>

at a percentage of reimbursement on the total project if you desire to go ahead with the additional
encasement.
We appreciate your consideration in this matter and we will be glad to discuss it further if you
desire.
Very truly yours,
N. W. Coomes, Assistant Director
Utilities Section
Division of Design
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<<<PAGE 7>>>

P.O. Box 373
Vincennes, Indiana
February 17, 1977
Mr. N. W. Coomes, Assistant Director
Department of Transportation
Commonwealth of Kentucky
Frankfort, Kentucky 40601
RE: Daviess County SP 30-37
Owesnboro-Knottsville Road (Ky. 144)
Item No. 2-237.n
Dear Mr. Coomes:
In reference to your letter dated 2/10/77, to Mr. Fletcher Ferguson, please note that our
Midwestern Gas Transmission Company's office has moved from Chicago, Illinois, to P.O. Box
2511, Houston, Texas 77001, and Mr. Fletcher Ferguson has retired from our company and has
been replaced by Mr. C.A. Cassity.
Our plans for the Split Casing Installation is not based on Company Policy, but rather our
interpretation of the Federal Gas Pipeline Safety Regulations. If we do not install Split Casing,
we would be required to take the line out of service and install approximately 36 feet of lower
stress pipe in order to comply with the Federal Code. The gas loss for this operation alone would
amount to more than our estimate for installing Split Casing.
We take the position that our original crossing met all Federal Code requirements, and not until
the Kentucky Department of Transportation took additional right of way, did our pipeline
crossing fail to meet the Federal requirements. I am attaching a copy of a part of the Federal Gas
Pipeline Safety Regulations.
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<<<PAGE 8>>>

The only way relocating the vents would be feasible, the Kentucky Department of Transportation
would have to reduce their proposed new right of way to approximately 40 feet each side of the
proposed center line.
If that could be accomplished, the cost for extending the existing vents would probably be about
$200.00 to $300.00, and our pipeline crossing would meet the Federal minimum standards.
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<<<PAGE 9>>>

If you think we need to discuss this matter further, I will be glad to meet with you in Frankfort, or
any place that is convenient with you.
Yours truly,
MIDWESTERN GAS TRANSMISSION COMPANY
J. F. Chapman
Area Civil Engineer
Enclosure
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<<<PAGE 10>>>

March 1, 1977
Mr. J. F. Chapman, Area Civil Engineer
Midwestern Gas Transmission Co.
A Tenneco Company
P.O. Box 373
Vincennes, Indiana
Dear Mr. Chapman:
SUBJECT: Daviess County SP 30-37
Owensboro-Knottsville Road (Ky. 144)
Item No. 2-237.2
I have prepared a draft agreement along the line suggested by you in our telephone conversation
Monday. If this agreement is acceptable to your Company, your easement rights would be
subordinate in favor of the Department only within the limits of the one-half inch carrier pipe but
we would still ask that vent piping be extended to the Department's proposed new right of way
line.
The $500.00 estimated cost figure used in the agreement is based on your estimate of
approximately $300.00 to extend the vent pipe plus $200.00 for preliminary engineering. You
may wish to provide a further breakdown to support this estimate or if you do not feel that this
figure is adequate, please feel free to increase it and attach a similar breakdown to show how the
estimate is arrived at. We would also like to have a revised drawing from your office indicating
the proposed vent pipe relocation so that we can reproduce it and attach it to each copy of the
agreement.
If this agreement is acceptable, please have all four copies signed and return to this office for
execution by the Department. We will furnish you with an original and as many conformed copies
as you desire.
Should there be any questions regarding this agreement, I would appreciate your getting in touch
with me as soon as possible.
Very truly yours,
N. W. Coomes, Assistant Director
Utilities Section
Division of Design
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<<<PAGE 11>>>

Enclosures
P.O. Box 373
Vincennes, Indiana
March 9, 1977
Mr. N. W. Coomes, Assistant Director
Department of Transportation
Commonwealth of Kentucky
Frankfort, Kentucky 40601
RE: Daviess County SP 30-37
Owensboro-Knottsville Road (Ky. 144)
Item No. 2-237.2
Dear Mr. Coomes:
Regarding your letter dated March 1, 1977, evidently there was a misunderstanding on my part. I
didn't mean that we would extend the casing vents past the 30" O.D. x .500" w.t. pipe. We still
insist that for this to be accomplished, we will need to install split casing over the 30" O.D. x
.375" w.t. pipe.
The draft agreement that you prepared has been sent to Mr. L.L. Howard, Right of Way
Manager, for Midwestern Gas Transmission Company. He will be contacting you in the next few
days.
Yours truly,
MIDWESTERN GAS TRANSMISSION
COMPANY
J. F. Chapman
Area Civil Engineer
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<<<PAGE 12>>>

Reply to: P.O. Box 197
Channahon, Illinois 60410
March 16, 1977
Mr. N. W. Coomes, Assistant Director
Department of Transportation
Commonwealth of Kentucky
Frankfort, Kentucky 40601
Re: Daviess County SP 30-37
Owensboro-Knottsville Road (Ky. 144)
Item No. 2-237.2
Dear Mr. Coomes:
Your letter, together with the agreements, dated March 1, 1977 addressed to J.F. Chapman of
Midwestern Gas Transmission Company at Vincennes, Indiana, has been referred to my office for
further handling.
I believe we were authorized to start preliminary survey work on this project in 1975. In 1976,
we presented two estimates to your office, one with a contractor performing the work, the
estimate amounted to approximately $23,000. We also proposed to your department, after a field
inspection was made with your personnel on July 14, 1976, a figure of approximately $6,500., if
we did the work with our own forces. Both of these proposals were in accordance with the
Federal Gas Pipeline Safety Regulations, which call for installing split casing to your right-of-way
limits, and relocating vent pipes at those limits or fence limit.
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<<<PAGE 13>>>

To maintain our standards within the Federal Gas Pipeline Safety Regulations we proposed an
alternative to the above; that we would extend our vent pipes from the present road right-of-way
to the end of our heavy wall pipe, if you would pull in your own right-of-way limits to the same
station. If this could be agreed upon, the company stated that they could do this work from
somewhere between $500. to $800.
Midwestern Gas Transmission Co., and its parent company Tennessee Gas Transmission Co., has
adhered to the Federal Gas Pipeline Safety Regulations, and its codes, regarding high pressure
piping. In 1959 this line was built at this location to meet the design factor for Class One
Location. According to the code, if there is any change in design factor, such as going from a
.500 wall thickness to a .375 wall thickness, this will not meet the design factor of Class One but
will fall into Class Two, which will put our facilities out of code. Thus our company will not
concur to do.
We have dealt with the Department of Transportation in Kentucky before on limited access
highways, and also on state highways. For an example, in 1967 we changed out our facilities to
meet federal regulations, doing a change in highway location, of which Midwestern Gas
Transmission Company and the State of Kentucky agreed. There was a Reimbursement
Agreement signed in the amount of $64,700. More recently, we have dealt with Daviess County
Highway Department, whereby, to maintain the code for high pressure piping, we installed split
casing to accommodate a new highway crossing, and agreed on a figure of $6,100, with the
county, doing the work with our own forces.
We have no fault with the Federal Gas Pipeline Safety Code, and have not been cited by them
regarding our facilities. Therefore, it is suggested that if you desire (reassurance) further
interpretation of the code, you contact the Office of Pipeline Safety in Washington, D.C. Should
they give us relief in this regard, we will then have settled our differences.
I would like to inquire regarding the new highway limits of Highway 144 in this area. In 1959,
according to our permit secured from the State of Kentucky, the highway width was 49 feet.
According to the new proposal, you have extended your highway limits to the total distance of
136 feet, and stated you had purchased this additional land in fee. I would like to call to your
attention that our company had never been contacted, as we certainly have legal rights in new
lands acquired, and no contact has been made by your office to compensate our company for
subordination of said rights.
At any rate, as in previous occasions, we will try to cooperate with your department and your
personnel in every regard.
Yours truly,
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<<<PAGE 14>>>

L. L. Howard
Right of Way Manager
Reply to: P.O. Box 197
Channahon, Illinois 60410
March 18, 1977
Mr. N. W. Coomes, Assistant Director
Department of Transportation
Commonwealth of Kentucky
Frankfort, Kentucky 40601
Re: Daviess County SP 30-37
Owensboro-Knottsville Road (KY 144)
Item No. 2-237.2
Dear Mr. Coomes:
This is a follow up letter of the one addressed to you dated March 16, covering the above subject,
which is to correct a misstatement in paragraph 4 on page 1.
In 1959, this line was built at this location designed to meet all existing State and Federal Safety
Codes. Even with the implementation of more stringent Federal Codes in the late 1960's and early
1970's, this location still met all pipeline safety requirements. If there is a change in the design at
this location, such as going from pipe with a .500" wall thickness to pipe with .375" thickness,
without encasement, it would not meet the design factor of a Class One Location.
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<<<PAGE 15>>>

Yours truly,
L. L. Howard
Right of Way Manager
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